├── .gitignore ├── .idea ├── caches │ └── build_file_checksums.ser ├── codeStyles │ ├── Project.xml │ └── codeStyleConfig.xml ├── compiler.xml ├── encodings.xml ├── jarRepositories.xml ├── markdown-navigator.xml ├── markdown-navigator │ └── profiles_settings.xml ├── misc.xml ├── modules.xml ├── runConfigurations.xml └── vcs.xml ├── DragBoardView ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── time │ │ └── cat │ │ └── dragboardview │ │ ├── DragBoardView.java │ │ ├── DragLayout.java │ │ ├── PagerRecyclerView.java │ │ ├── adapter │ │ ├── HorizontalAdapter.java │ │ ├── RecyclerViewPagerAdapter.java │ │ └── VerticalAdapter.java │ │ ├── callback │ │ ├── DragHorizontalAdapter.java │ │ ├── DragHorizontalViewHolder.java │ │ ├── DragVerticalAdapter.java │ │ ├── onDragColumnListener.java │ │ └── onDragItemListener.java │ │ ├── helper │ │ └── DragHelper.java │ │ ├── model │ │ ├── DragColumn.java │ │ └── DragItem.java │ │ └── utils │ │ └── RecyclerviewUtils.java │ └── res │ ├── layout │ └── view_drag_board.xml │ └── values │ └── attrs_pagerrecyclerview.xml ├── LICENSE ├── README.md ├── README_zh.md ├── app ├── .gitignore ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── time │ │ └── cat │ │ └── demo │ │ ├── MainActivity.java │ │ ├── adapter │ │ ├── ColumnAdapter.java │ │ └── ItemAdapter.java │ │ └── data │ │ ├── Entry.java │ │ └── Item.java │ └── res │ ├── drawable-v24 │ └── ic_launcher_foreground.xml │ ├── drawable │ ├── ic_action_add.xml │ ├── ic_launcher_background.xml │ ├── ic_more_grey_24dp.xml │ └── shape_rectangle_with_radius.xml │ ├── layout │ ├── activity_main.xml │ ├── recyclerview_footer_addlist.xml │ ├── recyclerview_item_entry.xml │ └── recyclerview_item_item.xml │ ├── mipmap-hdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-mdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ ├── mipmap-xxxhdpi │ ├── ic_launcher.png │ └── ic_launcher_round.png │ └── values │ ├── colors.xml │ ├── strings.xml │ └── styles.xml ├── art ├── device-2018-04-04-085351.gif ├── device-2018-04-04-085942.png ├── device-2018-04-04-090017.png ├── device-2018-04-04-090030.png ├── device-2018-04-04-090047.png └── device-2018-04-04-090115.png ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # Built application files 2 | *.apk 3 | *.ap_ 4 | 5 | # Files for the ART/Dalvik VM 6 | *.dex 7 | 8 | # Java class files 9 | *.class 10 | 11 | # Generated files 12 | bin/ 13 | gen/ 14 | out/ 15 | 16 | # Gradle files 17 | .gradle/ 18 | build/ 19 | 20 | # Local configuration file (sdk path, etc) 21 | local.properties 22 | 23 | # Proguard folder generated by Eclipse 24 | proguard/ 25 | 26 | # Log Files 27 | *.log 28 | 29 | # Android Studio Navigation editor temp files 30 | .navigation/ 31 | 32 | # Android Studio captures folder 33 | captures/ 34 | 35 | # Intellij 36 | *.iml 37 | .idea/workspace.xml 38 | .idea/tasks.xml 39 | .idea/gradle.xml 40 | .idea/dictionaries 41 | .idea/libraries 42 | 43 | # Keystore files 44 | *.jks 45 | 46 | # External native build folder generated in Android Studio 2.2 and later 47 | .externalNativeBuild 48 | 49 | # Google Services (e.g. APIs or Firebase) 50 | google-services.json 51 | 52 | # Freeline 53 | freeline.py 54 | freeline/ 55 | freeline_project_description.json 56 | 57 | .idea/ -------------------------------------------------------------------------------- /.idea/caches/build_file_checksums.ser: -------------------------------------------------------------------------------- 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-------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /.idea/jarRepositories.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 9 | 10 | 14 | 15 | 19 | 20 | 24 | 25 | 29 | 30 | 34 | 35 | 39 | 40 | 44 | 45 | -------------------------------------------------------------------------------- /.idea/markdown-navigator.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 36 | 37 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | -------------------------------------------------------------------------------- /.idea/markdown-navigator/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 19 | 31 | 32 | 33 | 34 | 35 | 36 | 38 | -------------------------------------------------------------------------------- /.idea/modules.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | -------------------------------------------------------------------------------- /.idea/runConfigurations.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 11 | 12 | -------------------------------------------------------------------------------- /.idea/vcs.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | -------------------------------------------------------------------------------- /DragBoardView/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /DragBoardView/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | 3 | android { 4 | compileSdkVersion 28 5 | buildToolsVersion '28.0.3' 6 | 7 | defaultConfig { 8 | minSdkVersion 14 9 | targetSdkVersion 28 10 | versionCode 1 11 | versionName "1.0" 12 | 13 | testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner' 14 | 15 | } 16 | buildTypes { 17 | release { 18 | minifyEnabled false 19 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 20 | } 21 | } 22 | } 23 | 24 | dependencies { 25 | implementation fileTree(dir: 'libs', include: ['*.jar']) 26 | implementation 'androidx.appcompat:appcompat:1.0.0' 27 | implementation 'com.google.android.material:material:1.0.0' 28 | implementation 'androidx.cardview:cardview:1.0.0' 29 | } 30 | -------------------------------------------------------------------------------- /DragBoardView/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # By default, the flags in this file are appended to flags specified 3 | # in C:\AndroidSdk/tools/proguard/proguard-android.txt 4 | # You can edit the include path and order by changing the proguardFiles 5 | # directive in build.gradle. 6 | # 7 | # For more details, see 8 | # http://developer.android.com/guide/developing/tools/proguard.html 9 | 10 | # Add any project specific keep options here: 11 | 12 | # If your project uses WebView with JS, uncomment the following 13 | # and specify the fully qualified class name to the JavaScript interface 14 | # class: 15 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 16 | # public *; 17 | #} 18 | -------------------------------------------------------------------------------- /DragBoardView/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 9 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/DragBoardView.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview; 2 | 3 | import android.content.Context; 4 | import androidx.annotation.NonNull; 5 | import androidx.annotation.Nullable; 6 | import androidx.recyclerview.widget.LinearLayoutManager; 7 | import androidx.recyclerview.widget.RecyclerView; 8 | import android.util.AttributeSet; 9 | import android.view.View; 10 | 11 | import com.time.cat.dragboardview.adapter.HorizontalAdapter; 12 | import com.time.cat.dragboardview.helper.DragHelper; 13 | 14 | /** 15 | * @author dlink 16 | * @email linxy59@mail2.sysu.edu.cn 17 | * @date 2018/11/30 18 | * @discription null 19 | * @usage null 20 | */ 21 | public class DragBoardView extends DragLayout { 22 | private PagerRecyclerView mRecyclerView; 23 | private HorizontalAdapter mAdapter; 24 | private DragLayout mLayoutMain; 25 | private DragHelper mDragHelper; 26 | 27 | public DragBoardView(Context context) { 28 | super(context); 29 | init(context); 30 | } 31 | 32 | public DragBoardView(Context context, @Nullable AttributeSet attrs) { 33 | super(context, attrs); 34 | init(context, attrs); 35 | } 36 | 37 | public DragBoardView(Context context, @Nullable AttributeSet attrs, int defStyleAttr) { 38 | super(context, attrs, defStyleAttr); 39 | init(context, attrs); 40 | } 41 | 42 | private void init(Context context, AttributeSet attrs) { 43 | init(context); 44 | } 45 | 46 | private void init(Context context) { 47 | inflate(context, R.layout.view_drag_board, this); 48 | mLayoutMain = (DragLayout) findViewById(R.id.layout_main); 49 | mRecyclerView = (PagerRecyclerView) findViewById(R.id.rv_lists); 50 | 51 | // 配置RecycleView 52 | LinearLayoutManager layoutManager = new LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false); 53 | mRecyclerView.setLayoutManager(layoutManager); 54 | mRecyclerView.setHasFixedSize(true); 55 | mRecyclerView.setFlingFactor(0.1f); 56 | mRecyclerView.addOnPageChangedListener(mOnPagerChangedListener); 57 | mRecyclerView.addOnLayoutChangeListener(mOnLayoutChangedListener); 58 | mRecyclerView.addOnScrollListener(mOnScrollListener); 59 | 60 | // 通过 DragHelper 把 RecycleView 绑定到 DragLayout 61 | mDragHelper = new DragHelper(context); 62 | mDragHelper.bindHorizontalRecyclerView(mRecyclerView); 63 | mLayoutMain.setDragHelper(mDragHelper); 64 | } 65 | 66 | private RecyclerView.OnScrollListener mOnScrollListener = new RecyclerView.OnScrollListener() { 67 | @Override 68 | public void onScrollStateChanged(RecyclerView recyclerView, int newState) { 69 | super.onScrollStateChanged(recyclerView, newState); 70 | } 71 | 72 | @Override 73 | public void onScrolled(RecyclerView recyclerView, int dx, int dy) { 74 | int childCount = mRecyclerView.getChildCount(); 75 | int width = mRecyclerView.getChildAt(0).getWidth(); 76 | int padding = (mRecyclerView.getWidth() - width) / 2; 77 | 78 | for (int j = 0; j < childCount; j++) { 79 | View v = recyclerView.getChildAt(j); 80 | //往左 从 padding 到 -(v.getWidth()-padding) 的过程中，由大到小 81 | float rate = 0; 82 | if (v.getLeft() <= padding) { 83 | if (v.getLeft() >= padding - v.getWidth()) { 84 | rate = (padding - v.getLeft()) * 1f / v.getWidth(); 85 | } else { 86 | rate = 1; 87 | } 88 | v.setScaleX(1 - rate * 0.1f); 89 | 90 | } else { 91 | //往右 从 padding 到 recyclerView.getWidth()-padding 的过程中，由大到小 92 | if (v.getLeft() <= recyclerView.getWidth() - padding) { 93 | rate = (recyclerView.getWidth() - padding - v.getLeft()) * 1f / v.getWidth(); 94 | } 95 | v.setScaleX(0.9f + rate * 0.1f); 96 | } 97 | } 98 | } 99 | }; 100 | private View.OnLayoutChangeListener mOnLayoutChangedListener = new View.OnLayoutChangeListener() { 101 | @Override 102 | public void onLayoutChange(View v, int left, int top, int right, int bottom, int oldLeft, int oldTop, int oldRight, int oldBottom) { 103 | } 104 | }; 105 | private PagerRecyclerView.OnPageChangedListener mOnPagerChangedListener = new PagerRecyclerView.OnPageChangedListener() { 106 | @Override 107 | public void OnPageChanged(int oldPosition, int newPosition) { 108 | 109 | } 110 | }; 111 | 112 | public void setHorizontalAdapter(@NonNull HorizontalAdapter horizontalAdapter) { 113 | this.mAdapter = horizontalAdapter; 114 | mAdapter.setDragHelper(mDragHelper); 115 | mRecyclerView.setAdapter(mAdapter); 116 | } 117 | 118 | public DragHelper getDragHelper() { 119 | return mDragHelper; 120 | } 121 | 122 | public PagerRecyclerView getRecyclerView() { 123 | return mRecyclerView; 124 | } 125 | 126 | public HorizontalAdapter getAdapter() { 127 | return mAdapter; 128 | } 129 | } 130 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/DragLayout.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview; 2 | 3 | import android.content.Context; 4 | import android.util.AttributeSet; 5 | import android.view.MotionEvent; 6 | import android.widget.RelativeLayout; 7 | 8 | import com.time.cat.dragboardview.helper.DragHelper; 9 | 10 | /** 11 | * @author dlink 12 | * @email linxy59@mail2.sysu.edu.cn 13 | * @date 2018/4/3 14 | * @discription 配合 {@link DragHelper} 实现拖拽的根布局 15 | * @usage null 16 | */ 17 | public class DragLayout extends RelativeLayout { 18 | 19 | private DragHelper mDragHelper; 20 | 21 | public DragLayout(Context context) { 22 | super(context); 23 | } 24 | 25 | public DragLayout(Context context, AttributeSet attrs) { 26 | super(context, attrs); 27 | } 28 | 29 | public DragLayout(Context context, AttributeSet attrs, int defStyleAttr) { 30 | super(context, attrs, defStyleAttr); 31 | } 32 | 33 | public void setDragHelper(DragHelper dragHelper) { 34 | mDragHelper = dragHelper; 35 | } 36 | 37 | 38 | @Override 39 | public boolean onInterceptTouchEvent(MotionEvent ev) { 40 | if (mDragHelper != null) { 41 | if (mDragHelper.isDraggingItem() || mDragHelper.isDraggingColumn()) {return true;} 42 | } 43 | return super.onInterceptTouchEvent(ev); 44 | } 45 | 46 | @Override 47 | public boolean onTouchEvent(MotionEvent event) { 48 | switch (event.getAction()) { 49 | case MotionEvent.ACTION_MOVE: 50 | if (mDragHelper != null) { 51 | mDragHelper.updateDraggingPosition(event.getRawX(), event.getRawY()); 52 | } 53 | break; 54 | case MotionEvent.ACTION_UP: 55 | case MotionEvent.ACTION_CANCEL: 56 | if (mDragHelper != null) { 57 | if (mDragHelper.isDraggingItem()) { 58 | mDragHelper.dropItem(); 59 | } else if (mDragHelper.isDraggingColumn()) { 60 | mDragHelper.dropCol(); 61 | } 62 | } 63 | break; 64 | default: 65 | break; 66 | } 67 | return super.onTouchEvent(event); 68 | } 69 | } 70 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/PagerRecyclerView.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview; 2 | 3 | import android.content.Context; 4 | import android.content.res.TypedArray; 5 | import android.graphics.PointF; 6 | import android.os.Build; 7 | import android.os.Parcelable; 8 | import androidx.annotation.NonNull; 9 | import androidx.recyclerview.widget.LinearLayoutManager; 10 | import androidx.recyclerview.widget.LinearSmoothScroller; 11 | import androidx.recyclerview.widget.RecyclerView; 12 | import android.util.AttributeSet; 13 | import android.view.MotionEvent; 14 | import android.view.View; 15 | import android.view.ViewTreeObserver; 16 | 17 | import com.time.cat.dragboardview.adapter.RecyclerViewPagerAdapter; 18 | import com.time.cat.dragboardview.utils.RecyclerviewUtils; 19 | 20 | import java.lang.reflect.Field; 21 | import java.util.ArrayList; 22 | import java.util.List; 23 | 24 | /** 25 | * @author dlink 26 | * @email linxy59@mail2.sysu.edu.cn 27 | * @date 2018/4/3 28 | * @discription 实现看板的RecycleView 29 | * @usage null 30 | */ 31 | public class PagerRecyclerView extends RecyclerView { 32 | 33 | private RecyclerViewPagerAdapter mViewPagerAdapter; 34 | private float mTriggerOffset = 0.25f; 35 | private float mFlingFactor = 0.15f; 36 | private float mTouchSpan; 37 | private List mOnPageChangedListeners; 38 | private int mSmoothScrollTargetPosition = -1; 39 | private int mPositionBeforeScroll = -1; 40 | 41 | private boolean mSinglePageFling; 42 | 43 | boolean mNeedAdjust; 44 | int mFirstLeftWhenDragging; 45 | int mFirstTopWhenDragging; 46 | View mCurView; 47 | int mMaxLeftWhenDragging = Integer.MIN_VALUE; 48 | int mMinLeftWhenDragging = Integer.MAX_VALUE; 49 | int mMaxTopWhenDragging = Integer.MIN_VALUE; 50 | int mMinTopWhenDragging = Integer.MAX_VALUE; 51 | private int mPositionOnTouchDown = -1; 52 | private boolean mHasCalledOnPageChanged = true; 53 | private boolean reverseLayout = false; 54 | 55 | public PagerRecyclerView(Context context) { 56 | this(context, null); 57 | } 58 | 59 | public PagerRecyclerView(Context context, AttributeSet attrs) { 60 | this(context, attrs, 0); 61 | } 62 | 63 | public PagerRecyclerView(Context context, AttributeSet attrs, int defStyle) { 64 | super(context, attrs, defStyle); 65 | initAttrs(context, attrs, defStyle); 66 | setNestedScrollingEnabled(false); 67 | } 68 | 69 | private void initAttrs(Context context, AttributeSet attrs, int defStyle) { 70 | TypedArray a = context.obtainStyledAttributes(attrs, R.styleable.RecyclerViewPager, defStyle, 0); 71 | mFlingFactor = a.getFloat(R.styleable.RecyclerViewPager_flingFactor, 0.15f); 72 | mTriggerOffset = a.getFloat(R.styleable.RecyclerViewPager_triggerOffset, 0.25f); 73 | mSinglePageFling = a.getBoolean(R.styleable.RecyclerViewPager_singlePageFling, mSinglePageFling); 74 | a.recycle(); 75 | } 76 | 77 | public void setFlingFactor(float flingFactor) { 78 | mFlingFactor = flingFactor; 79 | } 80 | 81 | public float getFlingFactor() { 82 | return mFlingFactor; 83 | } 84 | 85 | public void setTriggerOffset(float triggerOffset) { 86 | mTriggerOffset = triggerOffset; 87 | } 88 | 89 | public float getTriggerOffset() { 90 | return mTriggerOffset; 91 | } 92 | 93 | public void setSinglePageFling(boolean singlePageFling) { 94 | mSinglePageFling = singlePageFling; 95 | } 96 | 97 | public boolean isSinglePageFling() { 98 | return mSinglePageFling; 99 | } 100 | 101 | @Override 102 | protected void onRestoreInstanceState(Parcelable state) { 103 | try { 104 | Field fLayoutState = state.getClass().getDeclaredField("mLayoutState"); 105 | fLayoutState.setAccessible(true); 106 | Object layoutState = fLayoutState.get(state); 107 | Field fAnchorOffset = layoutState.getClass().getDeclaredField("mAnchorOffset"); 108 | Field fAnchorPosition = layoutState.getClass().getDeclaredField("mAnchorPosition"); 109 | fAnchorPosition.setAccessible(true); 110 | fAnchorOffset.setAccessible(true); 111 | if (fAnchorOffset.getInt(layoutState) > 0) { 112 | fAnchorPosition.set(layoutState, fAnchorPosition.getInt(layoutState) - 1); 113 | } else if (fAnchorOffset.getInt(layoutState) < 0) { 114 | fAnchorPosition.set(layoutState, fAnchorPosition.getInt(layoutState) + 1); 115 | } 116 | fAnchorOffset.setInt(layoutState, 0); 117 | } catch (Throwable e) { 118 | e.printStackTrace(); 119 | } 120 | super.onRestoreInstanceState(state); 121 | } 122 | 123 | @Override 124 | public void setAdapter(Adapter adapter) { 125 | mViewPagerAdapter = ensureRecyclerViewPagerAdapter(adapter); 126 | super.setAdapter(mViewPagerAdapter); 127 | } 128 | 129 | @Override 130 | public void swapAdapter(Adapter adapter, boolean removeAndRecycleExistingViews) { 131 | mViewPagerAdapter = ensureRecyclerViewPagerAdapter(adapter); 132 | super.swapAdapter(adapter, removeAndRecycleExistingViews); 133 | } 134 | 135 | @Override 136 | public Adapter getAdapter() { 137 | if (mViewPagerAdapter != null) {return mViewPagerAdapter.mAdapter;} 138 | return null; 139 | } 140 | 141 | 142 | @Override 143 | public void setLayoutManager(LayoutManager layout) { 144 | super.setLayoutManager(layout); 145 | if (layout instanceof LinearLayoutManager) { 146 | reverseLayout = ((LinearLayoutManager) layout).getReverseLayout(); 147 | } 148 | } 149 | 150 | @Override 151 | public boolean fling(int velocityX, int velocityY) { 152 | boolean fling = super.fling((int) (velocityX * mFlingFactor), (int) (velocityY * mFlingFactor)); 153 | if (fling) { 154 | if (getLayoutManager().canScrollHorizontally()) { 155 | adjustPositionX(velocityX); 156 | } else { 157 | adjustPositionY(velocityY); 158 | } 159 | } 160 | return fling; 161 | } 162 | 163 | @Override 164 | public void smoothScrollToPosition(int position) { 165 | mSmoothScrollTargetPosition = position; 166 | if (getLayoutManager() != null && getLayoutManager() instanceof LinearLayoutManager) { 167 | LinearSmoothScroller linearSmoothScroller = new LinearSmoothScroller(getContext()) { 168 | @Override 169 | public PointF computeScrollVectorForPosition(int targetPosition) { 170 | if (getLayoutManager() == null) {return null;} 171 | return ((LinearLayoutManager) getLayoutManager()).computeScrollVectorForPosition(targetPosition); 172 | } 173 | 174 | @Override 175 | protected void onTargetFound(View targetView, State state, Action action) { 176 | if (getLayoutManager() == null) {return;} 177 | int dx = calculateDxToMakeVisible(targetView, getHorizontalSnapPreference()); 178 | int dy = calculateDyToMakeVisible(targetView, getVerticalSnapPreference()); 179 | if (dx > 0) { 180 | dx = dx - getLayoutManager().getLeftDecorationWidth(targetView); 181 | } else { 182 | dx = dx + getLayoutManager().getRightDecorationWidth(targetView); 183 | } 184 | if (dy > 0) { 185 | dy = dy - getLayoutManager() 186 | .getTopDecorationHeight(targetView); 187 | } else { 188 | dy = dy + getLayoutManager() 189 | .getBottomDecorationHeight(targetView); 190 | } 191 | final int distance = (int) Math.sqrt(dx * dx + dy * dy); 192 | final int time = calculateTimeForDeceleration(distance); 193 | if (time > 0) { 194 | action.update(-dx, -dy, time, mDecelerateInterpolator); 195 | } 196 | } 197 | }; 198 | linearSmoothScroller.setTargetPosition(position); 199 | if (position == RecyclerView.NO_POSITION) { 200 | return; 201 | } 202 | getLayoutManager().startSmoothScroll(linearSmoothScroller); 203 | 204 | } else { 205 | super.smoothScrollToPosition(position); 206 | } 207 | } 208 | 209 | @Override 210 | public void scrollToPosition(int position) { 211 | mPositionBeforeScroll = getCurrentPosition(); 212 | mSmoothScrollTargetPosition = position; 213 | super.scrollToPosition(position); 214 | 215 | getViewTreeObserver().addOnGlobalLayoutListener(new ViewTreeObserver.OnGlobalLayoutListener() { 216 | @Override 217 | public void onGlobalLayout() { 218 | if (Build.VERSION.SDK_INT < 16) { 219 | getViewTreeObserver().removeGlobalOnLayoutListener(this); 220 | } else { 221 | getViewTreeObserver().removeOnGlobalLayoutListener(this); 222 | } 223 | 224 | if (mSmoothScrollTargetPosition >= 0 && mSmoothScrollTargetPosition < mViewPagerAdapter.getItemCount()) { 225 | if (mOnPageChangedListeners != null) { 226 | for (OnPageChangedListener onPageChangedListener : mOnPageChangedListeners) { 227 | if (onPageChangedListener != null) { 228 | onPageChangedListener.OnPageChanged(mPositionBeforeScroll, getCurrentPosition()); 229 | } 230 | } 231 | } 232 | } 233 | } 234 | }); 235 | } 236 | 237 | @Override 238 | public boolean dispatchTouchEvent(MotionEvent ev) { 239 | if (ev.getAction() == MotionEvent.ACTION_DOWN) { 240 | mPositionOnTouchDown = getLayoutManager().canScrollHorizontally() ? 241 | RecyclerviewUtils.getCenterXChildPosition(this) 242 | : RecyclerviewUtils.getCenterYChildPosition(this); 243 | } 244 | return super.dispatchTouchEvent(ev); 245 | } 246 | 247 | @Override 248 | public boolean onTouchEvent(MotionEvent e) { 249 | // recording the max/min value in touch track 250 | if (e.getAction() == MotionEvent.ACTION_MOVE) { 251 | if (mCurView != null) { 252 | mMaxLeftWhenDragging = Math.max(mCurView.getLeft(), mMaxLeftWhenDragging); 253 | mMaxTopWhenDragging = Math.max(mCurView.getTop(), mMaxTopWhenDragging); 254 | mMinLeftWhenDragging = Math.min(mCurView.getLeft(), mMinLeftWhenDragging); 255 | mMinTopWhenDragging = Math.min(mCurView.getTop(), mMinTopWhenDragging); 256 | } 257 | } 258 | return super.onTouchEvent(e); 259 | } 260 | 261 | @Override 262 | public void onScrollStateChanged(int state) { 263 | super.onScrollStateChanged(state); 264 | if (state == SCROLL_STATE_DRAGGING) { 265 | mNeedAdjust = true; 266 | mCurView = getLayoutManager().canScrollHorizontally() ? RecyclerviewUtils.getCenterXChild(this) : 267 | RecyclerviewUtils.getCenterYChild(this); 268 | if (mCurView != null) { 269 | if (mHasCalledOnPageChanged) { 270 | // While rvp is scrolling, mPositionBeforeScroll will be previous value. 271 | mPositionBeforeScroll = getChildLayoutPosition(mCurView); 272 | mHasCalledOnPageChanged = false; 273 | } 274 | mFirstLeftWhenDragging = mCurView.getLeft(); 275 | mFirstTopWhenDragging = mCurView.getTop(); 276 | } else { 277 | mPositionBeforeScroll = -1; 278 | } 279 | mTouchSpan = 0; 280 | } else if (state == SCROLL_STATE_SETTLING) { 281 | mNeedAdjust = false; 282 | if (mCurView != null) { 283 | if (getLayoutManager().canScrollHorizontally()) { 284 | mTouchSpan = mCurView.getLeft() - mFirstLeftWhenDragging; 285 | } else { 286 | mTouchSpan = mCurView.getTop() - mFirstTopWhenDragging; 287 | } 288 | } else { 289 | mTouchSpan = 0; 290 | } 291 | mCurView = null; 292 | } else if (state == SCROLL_STATE_IDLE) { 293 | if (mNeedAdjust) { 294 | int targetPosition = getLayoutManager().canScrollHorizontally() ? RecyclerviewUtils.getCenterXChildPosition(this) : 295 | RecyclerviewUtils.getCenterYChildPosition(this); 296 | if (mCurView != null) { 297 | targetPosition = getChildAdapterPosition(mCurView); 298 | if (getLayoutManager().canScrollHorizontally()) { 299 | int spanX = mCurView.getLeft() - mFirstLeftWhenDragging; 300 | // if user is tending to cancel paging action, don't perform position changing 301 | if (spanX > mCurView.getWidth() * mTriggerOffset && mCurView.getLeft() >= mMaxLeftWhenDragging) { 302 | if (!reverseLayout) {targetPosition--;} else {targetPosition++;} 303 | } else if (spanX < mCurView.getWidth() * -mTriggerOffset && mCurView.getLeft() <= mMinLeftWhenDragging) { 304 | if (!reverseLayout) {targetPosition++;} else {targetPosition--;} 305 | } 306 | } else { 307 | int spanY = mCurView.getTop() - mFirstTopWhenDragging; 308 | if (spanY > mCurView.getHeight() * mTriggerOffset && mCurView.getTop() >= mMaxTopWhenDragging) { 309 | if (!reverseLayout) {targetPosition--;} else {targetPosition++;} 310 | } else if (spanY < mCurView.getHeight() * -mTriggerOffset && mCurView.getTop() <= mMinTopWhenDragging) { 311 | if (!reverseLayout) {targetPosition++;} else {targetPosition--;} 312 | } 313 | } 314 | } 315 | smoothScrollToPosition(safeTargetPosition(targetPosition, mViewPagerAdapter.getItemCount())); 316 | mCurView = null; 317 | } else if (mSmoothScrollTargetPosition != mPositionBeforeScroll) { 318 | if (mOnPageChangedListeners != null) { 319 | for (OnPageChangedListener onPageChangedListener : mOnPageChangedListeners) { 320 | if (onPageChangedListener != null) { 321 | onPageChangedListener.OnPageChanged(mPositionBeforeScroll, mSmoothScrollTargetPosition); 322 | } 323 | } 324 | } 325 | mHasCalledOnPageChanged = true; 326 | mPositionBeforeScroll = mSmoothScrollTargetPosition; 327 | } 328 | // reset 329 | mMaxLeftWhenDragging = Integer.MIN_VALUE; 330 | mMinLeftWhenDragging = Integer.MAX_VALUE; 331 | mMaxTopWhenDragging = Integer.MIN_VALUE; 332 | mMinTopWhenDragging = Integer.MAX_VALUE; 333 | } 334 | } 335 | 336 | 337 | @NonNull 338 | protected RecyclerViewPagerAdapter ensureRecyclerViewPagerAdapter(Adapter adapter) { 339 | return (adapter instanceof RecyclerViewPagerAdapter) 340 | ? (RecyclerViewPagerAdapter) adapter 341 | : new RecyclerViewPagerAdapter(this, adapter); 342 | } 343 | 344 | 345 | public void addOnPageChangedListener(OnPageChangedListener listener) { 346 | if (mOnPageChangedListeners == null) { 347 | mOnPageChangedListeners = new ArrayList<>(); 348 | } 349 | mOnPageChangedListeners.add(listener); 350 | } 351 | 352 | public void removeOnPageChangedListener(OnPageChangedListener listener) { 353 | if (mOnPageChangedListeners != null) { 354 | mOnPageChangedListeners.remove(listener); 355 | } 356 | } 357 | 358 | public void clearOnPageChangedListeners() { 359 | if (mOnPageChangedListeners != null) { 360 | mOnPageChangedListeners.clear(); 361 | } 362 | } 363 | 364 | public void nextPage() { 365 | smoothScrollToPosition(getCurrentPosition() + 1); 366 | } 367 | 368 | public void prePage() { 369 | smoothScrollToPosition(getCurrentPosition() - 1); 370 | } 371 | 372 | public void backToCurrentPage() { 373 | smoothScrollToPosition(getCurrentPosition()); 374 | } 375 | 376 | /** 377 | * get item position in center of viewpager 378 | */ 379 | public int getCurrentPosition() { 380 | int curPosition = -1; 381 | if (getLayoutManager().canScrollHorizontally()) { 382 | curPosition = RecyclerviewUtils.getCenterXChildPosition(this); 383 | } else { 384 | curPosition = RecyclerviewUtils.getCenterYChildPosition(this); 385 | } 386 | if (curPosition < 0) { 387 | curPosition = mSmoothScrollTargetPosition; 388 | } 389 | return curPosition; 390 | } 391 | 392 | 393 | /** 394 | * adjust position before Touch event complete and fling action start. 395 | */ 396 | private void adjustPositionX(int velocityX) { 397 | if (reverseLayout) { velocityX *= -1; } 398 | 399 | int childCount = getChildCount(); 400 | if (childCount > 0) { 401 | int curPosition = RecyclerviewUtils.getCenterXChildPosition(this); 402 | int childWidth = getWidth() - getPaddingLeft() - getPaddingRight(); 403 | int flingCount = getFlingCount(velocityX, childWidth); 404 | int targetPosition = curPosition + flingCount; 405 | if (mSinglePageFling) { 406 | flingCount = Math.max(-1, Math.min(1, flingCount)); 407 | targetPosition = flingCount == 0 ? curPosition : mPositionOnTouchDown + flingCount; 408 | } 409 | targetPosition = Math.max(targetPosition, 0); 410 | targetPosition = Math.min(targetPosition, mViewPagerAdapter.getItemCount() - 1); 411 | if (targetPosition == curPosition 412 | && ((mSinglePageFling 413 | && mPositionOnTouchDown == curPosition) 414 | || !mSinglePageFling)) { 415 | View centerXChild = RecyclerviewUtils.getCenterXChild(this); 416 | if (centerXChild != null) { 417 | if (mTouchSpan > centerXChild.getWidth() * mTriggerOffset * mTriggerOffset && targetPosition != 0) { 418 | if (!reverseLayout) { targetPosition--; } else { targetPosition++; } 419 | } else if (mTouchSpan < centerXChild.getWidth() * -mTriggerOffset && targetPosition != mViewPagerAdapter.getItemCount() - 1) { 420 | if (!reverseLayout) { targetPosition++; } else { targetPosition--; } 421 | } 422 | } 423 | } 424 | smoothScrollToPosition(safeTargetPosition(targetPosition, mViewPagerAdapter.getItemCount())); 425 | } 426 | } 427 | 428 | /*** 429 | * adjust position before Touch event complete and fling action start. 430 | */ 431 | protected void adjustPositionY(int velocityY) { 432 | if (reverseLayout) { velocityY *= -1; } 433 | 434 | int childCount = getChildCount(); 435 | if (childCount > 0) { 436 | int curPosition = RecyclerviewUtils.getCenterYChildPosition(this); 437 | int childHeight = getHeight() - getPaddingTop() - getPaddingBottom(); 438 | int flingCount = getFlingCount(velocityY, childHeight); 439 | int targetPosition = curPosition + flingCount; 440 | if (mSinglePageFling) { 441 | flingCount = Math.max(-1, Math.min(1, flingCount)); 442 | targetPosition = flingCount == 0 ? curPosition : mPositionOnTouchDown + flingCount; 443 | } 444 | 445 | targetPosition = Math.max(targetPosition, 0); 446 | targetPosition = Math.min(targetPosition, mViewPagerAdapter.getItemCount() - 1); 447 | if (targetPosition == curPosition 448 | && ((mSinglePageFling 449 | && mPositionOnTouchDown == curPosition) 450 | || !mSinglePageFling)) { 451 | View centerYChild = RecyclerviewUtils.getCenterYChild(this); 452 | if (centerYChild != null) { 453 | if (mTouchSpan > centerYChild.getHeight() * mTriggerOffset && targetPosition != 0) { 454 | if (!reverseLayout) { targetPosition--; } else { targetPosition++; } 455 | } else if (mTouchSpan < centerYChild.getHeight() * -mTriggerOffset && targetPosition != mViewPagerAdapter.getItemCount() - 1) { 456 | if (!reverseLayout) { targetPosition++; } else { targetPosition--; } 457 | } 458 | } 459 | } 460 | smoothScrollToPosition(safeTargetPosition(targetPosition, mViewPagerAdapter.getItemCount())); 461 | } 462 | } 463 | 464 | private int getFlingCount(int velocity, int cellSize) { 465 | if (velocity == 0) { 466 | return 0; 467 | } 468 | int sign = velocity > 0 ? 1 : -1; 469 | return (int) (sign * Math.ceil((velocity * sign * mFlingFactor / cellSize) 470 | - mTriggerOffset)); 471 | } 472 | 473 | private int safeTargetPosition(int position, int count) { 474 | if (position < 0) { 475 | return 0; 476 | } 477 | if (position >= count) { 478 | return count - 1; 479 | } 480 | return position; 481 | } 482 | 483 | public interface OnPageChangedListener { 484 | void OnPageChanged(int oldPosition, int newPosition); 485 | } 486 | } 487 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/adapter/HorizontalAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.adapter; 2 | 3 | import android.content.Context; 4 | import androidx.annotation.IntRange; 5 | import androidx.recyclerview.widget.RecyclerView; 6 | import android.view.LayoutInflater; 7 | import android.view.View; 8 | import android.view.ViewGroup; 9 | 10 | import com.time.cat.dragboardview.callback.DragHorizontalAdapter; 11 | import com.time.cat.dragboardview.callback.DragHorizontalViewHolder; 12 | import com.time.cat.dragboardview.helper.DragHelper; 13 | import com.time.cat.dragboardview.model.DragColumn; 14 | 15 | import java.util.Collections; 16 | import java.util.List; 17 | 18 | import static com.time.cat.dragboardview.helper.DragHelper.TYPE_CONTENT; 19 | import static com.time.cat.dragboardview.helper.DragHelper.TYPE_FOOTER; 20 | 21 | /** 22 | * @author dlink 23 | * @email linxy59@mail2.sysu.edu.cn 24 | * @date 2018/4/3 25 | * @discription 水平排列的列表 26 | * @usage null 27 | */ 28 | public abstract class HorizontalAdapter 29 | extends RecyclerView.Adapter 30 | implements DragHorizontalAdapter { 31 | 32 | protected Context mContext; 33 | private List mData; 34 | protected DragHelper dragHelper; 35 | 36 | private int mDragPosition;//正在拖动的 View 的 position 37 | private boolean mHideDragItem; // 是否隐藏正在拖动的 position 38 | 39 | public HorizontalAdapter(Context context) { 40 | this.mContext = context; 41 | } 42 | 43 | @Override 44 | public VH onCreateViewHolder(ViewGroup parent, int viewType) { 45 | if (needFooter() && viewType == TYPE_FOOTER) { 46 | View convertView = LayoutInflater.from(mContext) 47 | .inflate(getFooterLayoutRes(), parent, false); 48 | return onCreateViewHolder(convertView, TYPE_FOOTER); 49 | } 50 | View convertView = LayoutInflater.from(mContext) 51 | .inflate(getContentLayoutRes(), parent, false); 52 | return onCreateViewHolder(convertView, TYPE_CONTENT); 53 | } 54 | 55 | @Override 56 | public void onBindViewHolder(final VH holder, int position) { 57 | switch (getItemViewType(position)) { 58 | case TYPE_CONTENT: 59 | final DragColumn dragColumn = mData.get(position); 60 | if (position == mDragPosition && mHideDragItem) { 61 | holder.itemView.setVisibility(View.INVISIBLE); 62 | return; 63 | } else { 64 | holder.itemView.setVisibility(View.VISIBLE); 65 | } 66 | holder.itemView.setTag(dragColumn); 67 | 68 | onBindContentViewHolder(holder, dragColumn, position); 69 | break; 70 | case TYPE_FOOTER: 71 | onBindFooterViewHolder(holder, position); 72 | break; 73 | default: 74 | break; 75 | } 76 | } 77 | 78 | @Override 79 | public int getItemCount() { 80 | if (!needFooter()) {return mData.size();} 81 | return mData.size() + 1; 82 | } 83 | 84 | @Override 85 | public int getItemViewType(int position) { 86 | if (!needFooter()) {return TYPE_CONTENT;} 87 | if (position == getItemCount() - 1) {return TYPE_FOOTER;} 88 | return TYPE_CONTENT; 89 | } 90 | 91 | @Override 92 | public void onDrag(int position) { 93 | mDragPosition = position; 94 | mHideDragItem = true; 95 | notifyItemChanged(position); 96 | } 97 | 98 | @Override 99 | public void onDrop(int page, int position, DragColumn tag) { 100 | mHideDragItem = false; 101 | // notifyItemChanged(position); 102 | notifyDataSetChanged(); 103 | } 104 | 105 | @Override 106 | public void onDragOut() { 107 | if (mDragPosition >= 0 && mDragPosition < mData.size()) { 108 | mData.remove(mDragPosition); 109 | notifyDataSetChanged();// 此处如果用 notifyItemRemove 下一次选定时的 position 是错的 110 | mDragPosition = -1; 111 | } 112 | } 113 | 114 | @Override 115 | public void onDragIn(int position, DragColumn dragColumnObject) { 116 | if (position > mData.size()) {// 如果拖进来时候的 position 比当前 列表的长度大，就添加到列表末端 117 | position = mData.size(); 118 | } 119 | mData.add(position, dragColumnObject); 120 | notifyItemInserted(position); 121 | mDragPosition = position; 122 | mHideDragItem = true; 123 | } 124 | 125 | @Override 126 | public void updateDragItemVisibility(int position) { 127 | if (mDragPosition >= 0 && mDragPosition < mData.size() && position < mData.size() && mDragPosition != position) { 128 | if (Math.abs(mDragPosition - position) == 1) { 129 | notifyItemChanged(mDragPosition); 130 | Collections.swap(mData, mDragPosition, position); 131 | mDragPosition = position; 132 | notifyItemChanged(position); 133 | } else { 134 | notifyItemChanged(mDragPosition); 135 | if (mDragPosition > position) { 136 | for (int i = mDragPosition; i > position; i--) { 137 | Collections.swap(mData, i, i - 1); 138 | notifyItemChanged(i); 139 | } 140 | } else { 141 | for (int i = mDragPosition; i < position; i++) { 142 | Collections.swap(mData, i, i + 1); 143 | notifyItemChanged(i); 144 | } 145 | } 146 | mDragPosition = position; 147 | notifyItemChanged(position); 148 | } 149 | } 150 | } 151 | 152 | public List getData() { 153 | return mData; 154 | } 155 | 156 | public void setData(List mData) { 157 | this.mData = mData; 158 | } 159 | 160 | public void appendNewColumn(DragColumn dragColumn) { 161 | getData().add(dragColumn); 162 | notifyItemInserted(getItemCount() - 1); 163 | } 164 | 165 | public void addNewColumn(@IntRange(from = 0) int position, DragColumn dragColumn) { 166 | getData().add(position, dragColumn); 167 | notifyItemInserted(position); 168 | } 169 | 170 | public void setDragHelper(DragHelper dragHelper) { 171 | this.dragHelper = dragHelper; 172 | } 173 | 174 | public void dragCol(View columnView, int position) { 175 | if (dragHelper != null) { 176 | dragHelper.dragCol(columnView, position); 177 | } 178 | } 179 | 180 | public void dragCol(VH holder) { 181 | dragCol(holder.itemView, holder.getAdapterPosition()); 182 | } 183 | 184 | public abstract int getContentLayoutRes(); 185 | 186 | public abstract int getFooterLayoutRes(); 187 | 188 | public abstract VH onCreateViewHolder(View parent, int viewType); 189 | 190 | public abstract void onBindContentViewHolder(final VH holder, DragColumn dragColumn, int position); 191 | 192 | public abstract void onBindFooterViewHolder(final VH holder, int position); 193 | 194 | public abstract boolean needFooter(); 195 | 196 | public abstract class ViewHolder extends RecyclerView.ViewHolder implements DragHorizontalViewHolder { 197 | 198 | public ViewHolder(View convertView, int itemType) { 199 | super(convertView); 200 | if (itemType == TYPE_CONTENT) { 201 | findViewForContent(convertView); 202 | } else { 203 | findViewForFooter(convertView); 204 | } 205 | } 206 | 207 | @Override 208 | public abstract RecyclerView getRecyclerView(); 209 | 210 | @Override 211 | public abstract void findViewForContent(View convertView); 212 | 213 | @Override 214 | public abstract void findViewForFooter(View convertView); 215 | } 216 | } 217 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/adapter/RecyclerViewPagerAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.adapter; 2 | 3 | import androidx.recyclerview.widget.RecyclerView; 4 | import android.view.View; 5 | import android.view.ViewGroup; 6 | 7 | import com.time.cat.dragboardview.PagerRecyclerView; 8 | 9 | /** 10 | * @author dlink 11 | * @email linxy59@mail2.sysu.edu.cn 12 | * @date 2018/4/3 13 | * @discription {@link PagerRecyclerView} 的Adapter 14 | * @usage null 15 | */ 16 | public class RecyclerViewPagerAdapter extends RecyclerView.Adapter { 17 | private final RecyclerView mViewPager; 18 | public RecyclerView.Adapter mAdapter; 19 | 20 | public RecyclerViewPagerAdapter(RecyclerView viewPager, RecyclerView.Adapter adapter) { 21 | mAdapter = adapter; 22 | mViewPager = viewPager; 23 | setHasStableIds(mAdapter.hasStableIds()); 24 | } 25 | 26 | @Override 27 | public VH onCreateViewHolder(ViewGroup parent, int viewType) { 28 | return mAdapter.onCreateViewHolder(parent, viewType); 29 | } 30 | 31 | @Override 32 | public void registerAdapterDataObserver(RecyclerView.AdapterDataObserver observer) { 33 | super.registerAdapterDataObserver(observer); 34 | mAdapter.registerAdapterDataObserver(observer); 35 | } 36 | 37 | @Override 38 | public void unregisterAdapterDataObserver(RecyclerView.AdapterDataObserver observer) { 39 | super.unregisterAdapterDataObserver(observer); 40 | mAdapter.unregisterAdapterDataObserver(observer); 41 | } 42 | 43 | @Override 44 | public void onViewRecycled(VH holder) { 45 | super.onViewRecycled(holder); 46 | mAdapter.onViewRecycled(holder); 47 | } 48 | 49 | @Override 50 | public boolean onFailedToRecycleView(VH holder) { 51 | return mAdapter.onFailedToRecycleView(holder); 52 | } 53 | 54 | @Override 55 | public void onViewAttachedToWindow(VH holder) { 56 | super.onViewAttachedToWindow(holder); 57 | mAdapter.onViewAttachedToWindow(holder); 58 | } 59 | 60 | @Override 61 | public void onViewDetachedFromWindow(VH holder) { 62 | super.onViewDetachedFromWindow(holder); 63 | mAdapter.onViewDetachedFromWindow(holder); 64 | } 65 | 66 | @Override 67 | public void onAttachedToRecyclerView(RecyclerView recyclerView) { 68 | super.onAttachedToRecyclerView(recyclerView); 69 | mAdapter.onAttachedToRecyclerView(recyclerView); 70 | } 71 | 72 | @Override 73 | public void onDetachedFromRecyclerView(RecyclerView recyclerView) { 74 | super.onDetachedFromRecyclerView(recyclerView); 75 | mAdapter.onDetachedFromRecyclerView(recyclerView); 76 | } 77 | 78 | @Override 79 | public void onBindViewHolder(VH holder, int position) { 80 | mAdapter.onBindViewHolder(holder, position); 81 | final View itemView = holder.itemView; 82 | ViewGroup.LayoutParams lp; 83 | if (itemView.getLayoutParams() == null) { 84 | lp = new ViewGroup.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT); 85 | } else { 86 | lp = itemView.getLayoutParams(); 87 | if (mViewPager.getLayoutManager().canScrollHorizontally()) { 88 | lp.width = ViewGroup.LayoutParams.MATCH_PARENT; 89 | } else { 90 | lp.height = ViewGroup.LayoutParams.MATCH_PARENT; 91 | } 92 | } 93 | itemView.setLayoutParams(lp); 94 | } 95 | 96 | @Override 97 | public void setHasStableIds(boolean hasStableIds) { 98 | super.setHasStableIds(hasStableIds); 99 | mAdapter.setHasStableIds(hasStableIds); 100 | } 101 | 102 | @Override 103 | public int getItemCount() { 104 | return mAdapter.getItemCount(); 105 | } 106 | 107 | @Override 108 | public int getItemViewType(int position) { 109 | return mAdapter.getItemViewType(position); 110 | } 111 | 112 | @Override 113 | public long getItemId(int position) { 114 | return mAdapter.getItemId(position); 115 | } 116 | } 117 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/adapter/VerticalAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.adapter; 2 | 3 | import android.content.Context; 4 | import androidx.annotation.NonNull; 5 | import androidx.recyclerview.widget.RecyclerView; 6 | import android.view.View; 7 | import android.view.ViewGroup; 8 | 9 | import com.time.cat.dragboardview.callback.DragVerticalAdapter; 10 | import com.time.cat.dragboardview.helper.DragHelper; 11 | import com.time.cat.dragboardview.model.DragItem; 12 | 13 | import java.util.ArrayList; 14 | import java.util.Collections; 15 | import java.util.List; 16 | 17 | /** 18 | * @author dlink 19 | * @email linxy59@mail2.sysu.edu.cn 20 | * @date 2018/4/3 21 | * @discription 垂直排列的子项卡片 22 | * @usage null 23 | */ 24 | public abstract class VerticalAdapter 25 | extends RecyclerView.Adapter 26 | implements DragVerticalAdapter { 27 | 28 | protected Context mContext; 29 | private List mData; 30 | @NonNull 31 | private DragHelper dragHelper; 32 | 33 | private int mDragPosition;//正在拖动的 View 的 position 34 | private boolean mHideDragItem; // 是否隐藏正在拖动的 position 35 | 36 | public VerticalAdapter(Context context, @NonNull DragHelper dragHelper) { 37 | this.mContext = context; 38 | this.mData = new ArrayList<>(); 39 | this.dragHelper = dragHelper; 40 | } 41 | 42 | @Override 43 | public abstract VH onCreateViewHolder(ViewGroup parent, int viewType); 44 | 45 | @Override 46 | public void onBindViewHolder(VH holder, final int position) { 47 | if (position == mDragPosition && mHideDragItem) { 48 | holder.itemView.setVisibility(View.INVISIBLE); 49 | } else { 50 | holder.itemView.setVisibility(View.VISIBLE); 51 | } 52 | final DragItem item = mData.get(holder.getAdapterPosition()); 53 | holder.itemView.setTag(item); 54 | 55 | onBindViewHolder(mContext, holder, item, holder.getAdapterPosition()); 56 | } 57 | 58 | @Override 59 | public int getItemCount() { 60 | return mData.size(); 61 | } 62 | 63 | @Override 64 | public void onDrag(int position) { 65 | mDragPosition = position; 66 | mHideDragItem = true; 67 | notifyItemChanged(position); 68 | } 69 | 70 | @Override 71 | public void onDrop(int page, int position, DragItem tag) { 72 | mHideDragItem = false; 73 | notifyItemChanged(position); 74 | } 75 | 76 | @Override 77 | public void onDragOut() { 78 | if (mDragPosition >= 0 && mDragPosition < mData.size()) { 79 | mData.remove(mDragPosition); 80 | notifyDataSetChanged();// 此处如果用 notifyItemRemove 下一次选定时的 position 是错的 81 | mDragPosition = -1; 82 | } 83 | } 84 | 85 | @Override 86 | public void onDragIn(int position, DragItem item) { 87 | if (position > mData.size()) {// 如果拖进来时候的 position 比当前 列表的长度大，就添加到列表末端 88 | position = mData.size(); 89 | } 90 | mData.add(position, item); 91 | notifyItemInserted(position); 92 | mDragPosition = position; 93 | mHideDragItem = true; 94 | } 95 | 96 | @Override 97 | public void updateDragItemVisibility(int position) { 98 | if (mDragPosition >= 0 && mDragPosition < mData.size() && position < mData.size() && mDragPosition != position) { 99 | if (Math.abs(mDragPosition - position) == 1) { 100 | notifyItemChanged(mDragPosition); 101 | Collections.swap(mData, mDragPosition, position); 102 | mDragPosition = position; 103 | notifyItemChanged(position); 104 | } else { 105 | notifyItemChanged(mDragPosition); 106 | if (mDragPosition > position) { 107 | for (int i = mDragPosition; i > position; i--) { 108 | Collections.swap(mData, i, i - 1); 109 | notifyItemChanged(i); 110 | } 111 | } else { 112 | for (int i = mDragPosition; i < position; i++) { 113 | Collections.swap(mData, i, i + 1); 114 | notifyItemChanged(i); 115 | } 116 | } 117 | mDragPosition = position; 118 | notifyItemChanged(position); 119 | } 120 | } 121 | } 122 | 123 | public void dragItem(View columnView, int position) { 124 | dragHelper.dragItem(columnView, position); 125 | } 126 | 127 | public void dragItem(VH holder) { 128 | dragItem(holder.itemView, holder.getAdapterPosition()); 129 | } 130 | 131 | public void setDragHelper(DragHelper dragHelper) { 132 | this.dragHelper = dragHelper; 133 | } 134 | 135 | public abstract void onBindViewHolder(Context context, VH holder, @NonNull DragItem item, final int position); 136 | 137 | public void setData(List mData) { 138 | this.mData = mData; 139 | notifyDataSetChanged(); 140 | } 141 | 142 | public List getData() { 143 | return mData; 144 | } 145 | } 146 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/callback/DragHorizontalAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.callback; 2 | 3 | import com.time.cat.dragboardview.model.DragColumn; 4 | 5 | /** 6 | * @author dlink 7 | * @email linxy59@mail2.sysu.edu.cn 8 | * @date 2018/4/3 9 | * @discription null 10 | * @usage null 11 | */ 12 | public interface DragHorizontalAdapter { 13 | /** 14 | * call if on dragItem item 15 | * @param position item position in Item List (which in VerticalRecyclerView) 16 | * 0 <= position <= size()-1 17 | * 拖动的 View 在纵向 recyclerView 上的 position 18 | */ 19 | void onDrag(int position); 20 | 21 | /** 22 | * call if on dropItem item 23 | * @param page item position in Entry List (which in HorizontalRecyclerView) 24 | * 拖动的 View 在横向 recyclerView 上的 position 25 | * @param position dropItem item to position in entry.getItemList() 26 | * 0 <= position <= size()-1 27 | * 拖动的 View 在纵向 recyclerView 上的 position 28 | */ 29 | void onDrop(int page, int position, DragColumn tag); 30 | 31 | /** 32 | * call if on dragItem out of current entry page 33 | */ 34 | void onDragOut(); 35 | 36 | /** 37 | * call if on dragItem in current entry page 38 | * 39 | * @param position item position in Item List (which in VerticalRecyclerView) 40 | * 0 <= position <= size()-1 41 | * 拖动的 View 在纵向 recyclerView 上的 position 42 | * @param tag convert it to your Item object 43 | */ 44 | void onDragIn(int position, DragColumn tag); 45 | 46 | /** 47 | * call if event.getAction() == MotionEvent.ACTION_MOVE 48 | * 49 | * @param position item position in Item List (VerticalRecyclerView) 50 | * 0 <= position <= size()-1 51 | * 拖动的 View 在纵向 recyclerView 上的 position 52 | */ 53 | void updateDragItemVisibility(int position); 54 | } 55 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/callback/DragHorizontalViewHolder.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.callback; 2 | 3 | import androidx.recyclerview.widget.RecyclerView; 4 | import android.view.View; 5 | 6 | /** 7 | * @author dlink 8 | * @email linxy59@mail2.sysu.edu.cn 9 | * @date 2018/4/3 10 | * @discription null 11 | * @usage null 12 | */ 13 | public interface DragHorizontalViewHolder { 14 | /** 15 | * each Horizontal ViewHolder is supposed to have a RecycleView 16 | * @return RecycleView in ViewHolder which contains vertical items 17 | */ 18 | RecyclerView getRecyclerView(); 19 | 20 | void findViewForContent(View itemView); 21 | 22 | void findViewForFooter(View itemView); 23 | } 24 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/callback/DragVerticalAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.callback; 2 | 3 | import com.time.cat.dragboardview.model.DragItem; 4 | 5 | /** 6 | * @author dlink 7 | * @email linxy59@mail2.sysu.edu.cn 8 | * @date 2018/4/3 9 | * @discription null 10 | * @usage null 11 | */ 12 | public interface DragVerticalAdapter { 13 | /** 14 | * call if on dragItem item 15 | * @param position item position in Item List (which in VerticalRecyclerView) 16 | * 0 <= position <= size()-1 17 | * 拖动的 View 在纵向 recyclerView 上的 position 18 | */ 19 | void onDrag(int position); 20 | 21 | /** 22 | * call if on dropItem item 23 | * @param page item position in Entry List (which in HorizontalRecyclerView) 24 | * 拖动的 View 在横向 recyclerView 上的 position 25 | * @param position dropItem item to position in entry.getItemList() 26 | * 0 <= position <= size()-1 27 | * 拖动的 View 在纵向 recyclerView 上的 position 28 | * @param tag convert it to your Item object 29 | */ 30 | void onDrop(int page, int position, DragItem tag); 31 | 32 | /** 33 | * call if on dragItem out of current entry page 34 | */ 35 | void onDragOut(); 36 | 37 | /** 38 | * call if on dragItem in of current entry page 39 | * 40 | * @param position item position in Item List (which in VerticalRecyclerView) 41 | * 0 <= position <= size()-1 42 | * 拖动的 View 在纵向 recyclerView 上的 position 43 | * @param tag convert it to your Item object 44 | */ 45 | void onDragIn(int position, DragItem tag); 46 | 47 | /** 48 | * call if event.getAction() == MotionEvent.ACTION_MOVE 49 | * 50 | * @param position item position in Item List (VerticalRecyclerView) 51 | * 0 <= position <= size()-1 52 | * 拖动的 View 在纵向 recyclerView 上的 position 53 | */ 54 | void updateDragItemVisibility(int position); 55 | } 56 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/callback/onDragColumnListener.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.callback; 2 | 3 | import android.view.MotionEvent; 4 | import android.view.View; 5 | 6 | /** 7 | * @author dlink 8 | * @email linxy59@mail2.sysu.edu.cn 9 | * @date 2018/6/2 10 | * @discription 设计监听，未使用 11 | * @usage null 12 | */ 13 | public interface onDragColumnListener { 14 | void onStartDragColumn(View columnView, int startPosition); 15 | 16 | void onDraggingColumn(View columnView, MotionEvent event); 17 | 18 | void onEndDragColumn(View columnView, int startPosition, int endPosition); 19 | } 20 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/callback/onDragItemListener.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.callback; 2 | 3 | import android.view.MotionEvent; 4 | import android.view.View; 5 | 6 | /** 7 | * @author dlink 8 | * @email linxy59@mail2.sysu.edu.cn 9 | * @date 2018/6/2 10 | * @discription 设计监听，未使用 11 | * @usage null 12 | */ 13 | public interface onDragItemListener { 14 | void onStartDragItem(View itemView, int startPosition); 15 | 16 | void onDraggingItem(View itemView, MotionEvent event); 17 | 18 | void onEndDragItem(View itemView, int startPosition, int endPosition); 19 | } 20 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/helper/DragHelper.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.helper; 2 | 3 | import android.annotation.SuppressLint; 4 | import android.content.Context; 5 | import android.graphics.Bitmap; 6 | import android.graphics.PixelFormat; 7 | import androidx.annotation.NonNull; 8 | import androidx.recyclerview.widget.LinearLayoutManager; 9 | import androidx.recyclerview.widget.RecyclerView; 10 | import android.util.DisplayMetrics; 11 | import android.util.Log; 12 | import android.view.Gravity; 13 | import android.view.MotionEvent; 14 | import android.view.View; 15 | import android.view.ViewGroup; 16 | import android.view.WindowManager; 17 | import android.widget.ImageView; 18 | 19 | import com.time.cat.dragboardview.DragLayout; 20 | import com.time.cat.dragboardview.PagerRecyclerView; 21 | import com.time.cat.dragboardview.callback.DragHorizontalAdapter; 22 | import com.time.cat.dragboardview.callback.DragHorizontalViewHolder; 23 | import com.time.cat.dragboardview.callback.DragVerticalAdapter; 24 | import com.time.cat.dragboardview.model.DragColumn; 25 | import com.time.cat.dragboardview.model.DragItem; 26 | 27 | import java.util.Timer; 28 | import java.util.TimerTask; 29 | 30 | /** 31 | * @author dlink 32 | * @email linxy59@mail2.sysu.edu.cn 33 | * @date 2018/4/3 34 | * @discription view 的拖拽功能，给 {@link DragLayout} 用 35 | * @usage null 36 | */ 37 | public class DragHelper { 38 | public static final int TYPE_CONTENT = 1; 39 | public static final int TYPE_FOOTER = 2; 40 | 41 | private WindowManager mWindowManager; 42 | private WindowManager.LayoutParams mWindowParams; 43 | private ImageView mDragImageView; 44 | private RecyclerView mCurrentVerticalRecycleView; 45 | private PagerRecyclerView mHorizontalRecyclerView; 46 | 47 | private DragItem dragItem; 48 | private boolean isDraggingItem = false;//抓起=true，否则=false 49 | private DragColumn dragColumn; 50 | private boolean isDraggingColumn = false;//是否正在拖拽一列，抓起=true，否则=false 51 | 52 | private float mBornLocationX, mBornLocationY;//抓起时 view 的坐标 53 | private int offsetX, offsetY;//抓起时 view 坐标和点击点的距离 54 | private boolean confirmOffset = false;//是否确定了 offset 55 | 56 | private Timer mHorizontalScrollTimer = new Timer();//横向滑动 57 | private TimerTask mHorizontalScrollTimerTask;//横向滑动 58 | private static final int HORIZONTAL_STEP = 30;// 横向滑动步伐. 59 | private static final int HORIZONTAL_SCROLL_PERIOD = 20;// 滑动时间间隔 60 | private int leftScrollBounce;// 拖动的时候，开始向左滚动的边界 61 | private int rightScrollBounce;// 拖动的时候，开始向右滚动的边界 62 | 63 | private Timer mVerticalScrollTimer = new Timer();//纵向滑动 64 | private TimerTask mVerticalScrollTimerTask;//纵向滑动 65 | private static final int VERTICAL_STEP = 10;// 纵向滑动步伐. 66 | private static final int VERTICAL_SCROLL_PERIOD = 10; 67 | private int upScrollBounce;// 拖动的时候，开始向上滚动的边界 68 | private int downScrollBounce;// 拖动的时候，开始向下滚动的边界 69 | private int mPosition = -1;// 拖动的 View 在纵向 recyclerView 上的 position 70 | private int mPagerPosition = -1;// 拖动的 View 在横向 recyclerView 上的 position 71 | private int screenWidth = 0; 72 | 73 | @SuppressLint("ClickableViewAccessibility") 74 | public DragHelper(Context activity) { 75 | mWindowManager = (WindowManager) activity.getSystemService(Context.WINDOW_SERVICE); 76 | mWindowParams = new WindowManager.LayoutParams(); 77 | mWindowParams.type = WindowManager.LayoutParams.TYPE_APPLICATION; 78 | mWindowParams.flags = WindowManager.LayoutParams.FLAG_NOT_TOUCH_MODAL | WindowManager.LayoutParams.FLAG_LAYOUT_NO_LIMITS | WindowManager.LayoutParams.FLAG_LAYOUT_IN_SCREEN | WindowManager.LayoutParams.FLAG_WATCH_OUTSIDE_TOUCH; 79 | mWindowParams.alpha = 1.0f; 80 | mWindowParams.format = PixelFormat.TRANSLUCENT; 81 | mWindowParams.width = WindowManager.LayoutParams.WRAP_CONTENT; 82 | mWindowParams.height = WindowManager.LayoutParams.WRAP_CONTENT; 83 | mWindowParams.gravity = Gravity.TOP | Gravity.LEFT; 84 | mWindowParams.x = 0; 85 | mWindowParams.y = 0; 86 | 87 | DisplayMetrics dm = new DisplayMetrics(); 88 | mWindowManager.getDefaultDisplay().getMetrics(dm); 89 | screenWidth = dm.widthPixels; 90 | 91 | mDragImageView = new ImageView(activity); 92 | mDragImageView.setLayoutParams(new ViewGroup.LayoutParams(ViewGroup.LayoutParams.WRAP_CONTENT, ViewGroup.LayoutParams.WRAP_CONTENT)); 93 | mDragImageView.setPadding(10, 10, 10, 10); 94 | mDragImageView.setOnTouchListener(new View.OnTouchListener() { 95 | @Override 96 | public boolean onTouch(View v, MotionEvent event) { 97 | if (event.getAction() == MotionEvent.ACTION_OUTSIDE || event.getAction() == MotionEvent.ACTION_DOWN) { 98 | if (isDraggingItem) { 99 | dropItem(); 100 | } else if (isDraggingColumn) { 101 | dropCol(); 102 | } 103 | } 104 | return false; 105 | } 106 | }); 107 | } 108 | 109 | 110 | //region drag column 111 | 112 | /** 113 | * 是否在拖动一列 114 | */ 115 | public boolean isDraggingColumn() { 116 | return isDraggingColumn; 117 | } 118 | 119 | /** 120 | * 抓起 121 | * 122 | * @param columnView 抓起的 View 123 | * @param position 抓起的 View 在 横向RecyclerView 的 position 124 | */ 125 | public void dragCol(View columnView, int position) { 126 | columnView.destroyDrawingCache(); 127 | columnView.setDrawingCacheEnabled(true); 128 | Bitmap bitmap = columnView.getDrawingCache(); 129 | if (bitmap != null && !bitmap.isRecycled()) { 130 | mDragImageView.setImageBitmap(bitmap); 131 | mDragImageView.setRotation(1.5f); 132 | mDragImageView.setAlpha(0.8f); 133 | 134 | isDraggingColumn = true; 135 | 136 | if (columnView.getTag() instanceof DragColumn) { 137 | dragColumn = (DragColumn) columnView.getTag(); 138 | } 139 | int dragPage = mHorizontalRecyclerView.getCurrentPosition(); 140 | RecyclerView.ViewHolder holder = (RecyclerView.ViewHolder) mHorizontalRecyclerView.findViewHolderForAdapterPosition(dragPage); 141 | if (holder != null && holder.itemView != null && holder.getItemViewType() == TYPE_CONTENT) { 142 | mCurrentVerticalRecycleView = ((DragHorizontalViewHolder) holder).getRecyclerView(); 143 | mPagerPosition = dragPage; 144 | } 145 | 146 | getTargetHorizontalRecyclerViewScrollBoundaries(); 147 | getTargetVerticalRecyclerViewScrollBoundaries(); 148 | 149 | int[] location = new int[2]; 150 | columnView.getLocationOnScreen(location); 151 | mWindowParams.x = location[0]; 152 | mWindowParams.y = location[1]; 153 | mBornLocationX = location[0]; 154 | mBornLocationY = location[1]; 155 | confirmOffset = false; 156 | mPosition = position; 157 | mWindowManager.addView(mDragImageView, mWindowParams); 158 | getHorizontalAdapter().onDrag(position); 159 | } 160 | } 161 | 162 | /** 163 | * 放下 164 | */ 165 | public void dropCol() { 166 | if (isDraggingColumn) { 167 | mWindowManager.removeView(mDragImageView); 168 | isDraggingColumn = false; 169 | 170 | if (mVerticalScrollTimerTask != null) { 171 | mVerticalScrollTimerTask.cancel(); 172 | } 173 | 174 | if (mHorizontalScrollTimerTask != null) { 175 | mHorizontalScrollTimerTask.cancel(); 176 | } 177 | 178 | if (mHorizontalRecyclerView != null) { 179 | mHorizontalRecyclerView.backToCurrentPage(); 180 | } 181 | 182 | getHorizontalAdapter().onDrop(mPagerPosition, mPosition, dragColumn); 183 | } 184 | } 185 | 186 | /** 187 | * 更新当前拖动点下面的 RecyclerView 188 | */ 189 | private void updateSlidingHorizontalRecyclerView(float x, float y) { 190 | int newPage = getHorizontalCurrentPosition(x, y); // 传入的是相对屏幕的 x,y 191 | if (mPagerPosition != newPage) { 192 | RecyclerView.ViewHolder holder = (RecyclerView.ViewHolder) mHorizontalRecyclerView.findViewHolderForAdapterPosition(newPage); 193 | if (holder != null && holder.itemView != null && holder.getItemViewType() == TYPE_CONTENT) { 194 | getHorizontalAdapter().onDragOut(); 195 | mCurrentVerticalRecycleView = ((DragHorizontalViewHolder) holder).getRecyclerView(); 196 | mPagerPosition = newPage; 197 | getHorizontalAdapter().onDragIn(mPosition, dragColumn); 198 | 199 | } 200 | } 201 | } 202 | 203 | /** 204 | * 获取当前拖动项的 position 205 | * 206 | * @param rowX 拖动点相对于屏幕的横坐标 207 | * @param rowY 拖动点相对于屏幕的纵坐标 208 | */ 209 | private void findViewPositionInHorizontalRV(float rowX, float rowY) { 210 | int[] location = new int[2]; 211 | mHorizontalRecyclerView.getLocationOnScreen(location); 212 | float x = rowX - location[0]; 213 | float y = rowY - location[1]; 214 | View child = mHorizontalRecyclerView.findChildViewUnder(x, y);// 这个方法传入的值是相对于 recyclerView 的 215 | int newPosition = mHorizontalRecyclerView.getChildAdapterPosition(child); 216 | int footerChildIndex = mHorizontalRecyclerView.getChildCount() + 1;//把抓住的加回去 217 | if (newPosition != RecyclerView.NO_POSITION 218 | && newPosition != footerChildIndex) { 219 | getHorizontalAdapter().updateDragItemVisibility(mPosition); 220 | if (mPosition != newPosition && mPosition < footerChildIndex) { 221 | mPosition = newPosition; 222 | } 223 | } 224 | } 225 | 226 | /** 227 | * 获取当前纵向 RecyclerView 的 Adapter 228 | * 229 | * @return Adapter 230 | */ 231 | private DragHorizontalAdapter getHorizontalAdapter() { 232 | return (DragHorizontalAdapter) mHorizontalRecyclerView.getAdapter(); 233 | } 234 | 235 | /** 236 | * 绑定 横向的 RecyclerView 237 | * 238 | * @param view 横向的 RecyclerView 239 | */ 240 | public void bindHorizontalRecyclerView(@NonNull PagerRecyclerView view) { 241 | mHorizontalRecyclerView = view; 242 | RecyclerView.LayoutManager layoutManager = view.getLayoutManager(); 243 | if (!(layoutManager instanceof LinearLayoutManager)) { 244 | throw new RuntimeException("LayoutManager must be LinearLayoutManager"); 245 | } 246 | } 247 | //endregion 248 | 249 | 250 | //region drag item 251 | 252 | /** 253 | * 是否在拖动一项 254 | */ 255 | public boolean isDraggingItem() { 256 | return isDraggingItem; 257 | } 258 | 259 | /** 260 | * 抓起 261 | * 262 | * @param dragger 抓起的 View 263 | * @param position 抓起的 View 在 RecyclerView 的 position 264 | */ 265 | public void dragItem(View dragger, int position) { 266 | dragger.destroyDrawingCache(); 267 | dragger.setDrawingCacheEnabled(true); 268 | Bitmap bitmap = dragger.getDrawingCache(); 269 | if (bitmap != null && !bitmap.isRecycled()) { 270 | mDragImageView.setImageBitmap(bitmap); 271 | mDragImageView.setRotation(1.5f); 272 | mDragImageView.setAlpha(0.8f); 273 | 274 | isDraggingItem = true; 275 | if (dragger.getTag() instanceof DragItem) { 276 | dragItem = (DragItem) dragger.getTag(); 277 | } 278 | int dragPage = mHorizontalRecyclerView.getCurrentPosition(); 279 | RecyclerView.ViewHolder holder = (RecyclerView.ViewHolder) mHorizontalRecyclerView.findViewHolderForAdapterPosition(dragPage); 280 | if (holder != null && holder.itemView != null && holder.getItemViewType() == TYPE_CONTENT) { 281 | mCurrentVerticalRecycleView = ((DragHorizontalViewHolder) holder).getRecyclerView(); 282 | 283 | mPagerPosition = dragPage; 284 | } 285 | 286 | getTargetHorizontalRecyclerViewScrollBoundaries(); 287 | getTargetVerticalRecyclerViewScrollBoundaries(); 288 | 289 | int[] location = new int[2]; 290 | dragger.getLocationOnScreen(location); 291 | mWindowParams.x = location[0]; 292 | mWindowParams.y = location[1]; 293 | mBornLocationX = location[0]; 294 | mBornLocationY = location[1]; 295 | confirmOffset = false; 296 | mPosition = position; 297 | mWindowManager.addView(mDragImageView, mWindowParams); 298 | getCurrentVerticalAdapter().onDrag(position); 299 | } 300 | } 301 | 302 | /** 303 | * 放下 304 | */ 305 | public void dropItem() { 306 | if (isDraggingItem) { 307 | mWindowManager.removeView(mDragImageView); 308 | isDraggingItem = false; 309 | 310 | if (mVerticalScrollTimerTask != null) { 311 | mVerticalScrollTimerTask.cancel(); 312 | } 313 | 314 | if (mHorizontalScrollTimerTask != null) { 315 | mHorizontalScrollTimerTask.cancel(); 316 | } 317 | 318 | if (mHorizontalRecyclerView != null) { 319 | mHorizontalRecyclerView.backToCurrentPage(); 320 | } 321 | 322 | getCurrentVerticalAdapter().onDrop(mPagerPosition, mPosition, dragItem); 323 | } 324 | } 325 | 326 | /** 327 | * 更新当前拖动点下面的 RecyclerView 328 | */ 329 | private void updateSlidingVerticalRecyclerView(float x, float y) { 330 | int newPage = getHorizontalCurrentPosition(x, y); // 传入的是相对屏幕的 x,y 331 | if (mPagerPosition != newPage) { 332 | RecyclerView.ViewHolder holder = (RecyclerView.ViewHolder) mHorizontalRecyclerView.findViewHolderForAdapterPosition(newPage); 333 | if (holder != null && holder.itemView != null && holder.getItemViewType() == TYPE_CONTENT) { 334 | getCurrentVerticalAdapter().onDragOut(); 335 | 336 | mCurrentVerticalRecycleView = ((DragHorizontalViewHolder) holder).getRecyclerView(); 337 | mPagerPosition = newPage; 338 | 339 | getCurrentVerticalAdapter().onDragIn(mPosition, dragItem); 340 | } 341 | } 342 | } 343 | 344 | /** 345 | * 获取当前拖动项的 position 346 | * 347 | * @param rowX 拖动点相对于屏幕的横坐标 348 | * @param rowY 拖动点相对于屏幕的纵坐标 349 | */ 350 | private void findViewPositionInCurVerticalRV(float rowX, float rowY) { 351 | int[] location = new int[2]; 352 | mCurrentVerticalRecycleView.getLocationOnScreen(location); 353 | float x = rowX - location[0]; 354 | float y = rowY - location[1]; 355 | View child = mCurrentVerticalRecycleView.findChildViewUnder(x, y);// 这个方法传入的值是相对于 recyclerView 的 356 | int newPosition = mCurrentVerticalRecycleView.getChildAdapterPosition(child); 357 | if (newPosition != RecyclerView.NO_POSITION) { 358 | getCurrentVerticalAdapter().updateDragItemVisibility(mPosition); 359 | if (mPosition != newPosition) { 360 | mPosition = newPosition; 361 | } 362 | } 363 | } 364 | 365 | /** 366 | * 获取当前纵向 RecyclerView 的 Adapter 367 | * 368 | * @return Adapter 369 | */ 370 | private DragVerticalAdapter getCurrentVerticalAdapter() { 371 | return (DragVerticalAdapter) mCurrentVerticalRecycleView.getAdapter(); 372 | } 373 | //endregion 374 | 375 | 376 | //region compute 377 | 378 | /** 379 | * 更新拖动点的坐标 380 | * 381 | * @param rowX 相对屏幕的横坐标 382 | * @param rowY 相对屏幕的纵坐标 383 | */ 384 | public void updateDraggingPosition(float rowX, float rowY) { 385 | if (mWindowManager == null || mWindowParams == null) { return; } 386 | if (!confirmOffset) { 387 | calculateOffset(rowX, rowY); 388 | } 389 | if (isDraggingItem) { 390 | mWindowParams.x = (int) (rowX - offsetX); 391 | mWindowParams.y = (int) (rowY - offsetY); 392 | mWindowManager.updateViewLayout(mDragImageView, mWindowParams); 393 | updateSlidingVerticalRecyclerView(rowX, rowY); 394 | findViewPositionInCurVerticalRV(rowX, rowY); 395 | recyclerViewScrollHorizontal((int) rowX, (int) rowY); 396 | recyclerViewScrollVertical((int) rowX, (int) rowY); 397 | } else if (isDraggingColumn) { 398 | mWindowParams.x = (int) (rowX - offsetX); 399 | mWindowParams.y = (int) (rowY - offsetY); 400 | mWindowManager.updateViewLayout(mDragImageView, mWindowParams); 401 | updateSlidingHorizontalRecyclerView(rowX, rowY); 402 | findViewPositionInHorizontalRV(rowX, rowY); 403 | recyclerViewScrollHorizontal((int) rowX, (int) rowY); 404 | recyclerViewScrollVertical((int) rowX, (int) rowY); 405 | } 406 | } 407 | 408 | /** 409 | * 计算拖动点和生成的 ImageView 坐标的偏移 410 | * 411 | * @param x 横坐标 412 | * @param y 纵坐标 413 | */ 414 | private void calculateOffset(float x, float y) { 415 | offsetX = (int) Math.abs(x - mBornLocationX); 416 | offsetY = (int) Math.abs(y - mBornLocationY); 417 | confirmOffset = true; 418 | } 419 | 420 | /** 421 | * 获取纵向滑动边界 422 | */ 423 | private void getTargetVerticalRecyclerViewScrollBoundaries() { 424 | int[] location = new int[2]; 425 | mCurrentVerticalRecycleView.getLocationOnScreen(location); 426 | upScrollBounce = location[1] + 150; 427 | downScrollBounce = location[1] + mCurrentVerticalRecycleView.getHeight() - 150; 428 | } 429 | 430 | /** 431 | * 获取横向滑动边界 432 | */ 433 | private void getTargetHorizontalRecyclerViewScrollBoundaries() { 434 | leftScrollBounce = 200; 435 | 436 | rightScrollBounce = screenWidth - 200; 437 | Log.i("MyTag", "leftScrollBounce " + leftScrollBounce + " rightScrollBounce " + rightScrollBounce); 438 | } 439 | 440 | /** 441 | * 横向 RecyclerView 滑动 442 | * 443 | * @param x 拖动点横坐标 444 | */ 445 | private void recyclerViewScrollHorizontal(final int x, final int y) { 446 | if (mHorizontalScrollTimerTask != null) { mHorizontalScrollTimerTask.cancel(); } 447 | 448 | if (x > rightScrollBounce) { 449 | mHorizontalScrollTimerTask = new TimerTask() { 450 | @Override 451 | public void run() { 452 | mHorizontalRecyclerView.post(new Runnable() { 453 | @Override 454 | public void run() { 455 | mHorizontalRecyclerView.scrollBy(HORIZONTAL_STEP, 0); 456 | findViewPositionInCurVerticalRV(x, y); 457 | } 458 | }); 459 | } 460 | }; 461 | mHorizontalScrollTimer.schedule(mHorizontalScrollTimerTask, 0, HORIZONTAL_SCROLL_PERIOD); 462 | } else if (x < leftScrollBounce) { 463 | mHorizontalScrollTimerTask = new TimerTask() { 464 | @Override 465 | public void run() { 466 | mHorizontalRecyclerView.post(new Runnable() { 467 | @Override 468 | public void run() { 469 | mHorizontalRecyclerView.scrollBy(-HORIZONTAL_STEP, 0); 470 | findViewPositionInCurVerticalRV(x, y); 471 | } 472 | }); 473 | } 474 | }; 475 | mHorizontalScrollTimer.schedule(mHorizontalScrollTimerTask, 0, HORIZONTAL_SCROLL_PERIOD); 476 | } 477 | } 478 | 479 | /** 480 | * 纵向 RecyclerView 滑动 481 | * 482 | * @param y 拖动点纵坐标 483 | */ 484 | private void recyclerViewScrollVertical(final int x, final int y) { 485 | if (mVerticalScrollTimerTask != null) { mVerticalScrollTimerTask.cancel(); } 486 | if (y > downScrollBounce) { 487 | mVerticalScrollTimerTask = new TimerTask() { 488 | @Override 489 | public void run() { 490 | mCurrentVerticalRecycleView.post(new Runnable() { 491 | @Override 492 | public void run() { 493 | mCurrentVerticalRecycleView.scrollBy(0, VERTICAL_STEP); 494 | findViewPositionInCurVerticalRV(x, y); 495 | } 496 | }); 497 | } 498 | }; 499 | mVerticalScrollTimer.schedule(mVerticalScrollTimerTask, 0, VERTICAL_SCROLL_PERIOD); 500 | } else if (y < upScrollBounce) { 501 | mVerticalScrollTimerTask = new TimerTask() { 502 | @Override 503 | public void run() { 504 | mCurrentVerticalRecycleView.post(new Runnable() { 505 | @Override 506 | public void run() { 507 | mCurrentVerticalRecycleView.scrollBy(0, -VERTICAL_STEP); 508 | findViewPositionInCurVerticalRV(x, y); 509 | } 510 | }); 511 | } 512 | }; 513 | mVerticalScrollTimer.schedule(mVerticalScrollTimerTask, 0, VERTICAL_SCROLL_PERIOD); 514 | } 515 | } 516 | 517 | 518 | private int getHorizontalCurrentPosition(float rowX, float rowY) { 519 | int[] location = new int[2]; 520 | mHorizontalRecyclerView.getLocationOnScreen(location); 521 | float x = rowX - location[0]; 522 | float y = rowY - location[1]; 523 | View child = mHorizontalRecyclerView.findChildViewUnder(x, y); 524 | if (child != null) { 525 | return mHorizontalRecyclerView.getChildAdapterPosition(child); 526 | } 527 | return mPagerPosition; 528 | } 529 | //endregion 530 | } 531 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/model/DragColumn.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.model; 2 | 3 | import androidx.annotation.IntRange; 4 | 5 | import java.util.List; 6 | 7 | /** 8 | * @author dlink 9 | * @email linxy59@mail2.sysu.edu.cn 10 | * @date 2018/11/30 11 | * @discription null 12 | * @usage null 13 | */ 14 | public interface DragColumn { 15 | List getItemList(); 16 | 17 | @IntRange(from = 0) 18 | int getColumnIndex(); 19 | 20 | void setColumnIndex(@IntRange(from = 0) int columnIndexInHorizontalRecycleView); 21 | } 22 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/model/DragItem.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.model; 2 | 3 | import androidx.annotation.IntRange; 4 | 5 | /** 6 | * @author dlink 7 | * @email linxy59@mail2.sysu.edu.cn 8 | * @date 2018/11/30 9 | * @discription null 10 | * @usage null 11 | */ 12 | public interface DragItem { 13 | @IntRange(from = 0) 14 | int getColumnIndex(); 15 | 16 | @IntRange(from = 0) 17 | int getItemIndex(); 18 | 19 | void setColumnIndex(@IntRange(from = 0) int columnIndexInHorizontalRecycleView); 20 | 21 | void setItemIndex(@IntRange(from = 0) int itemIndexInVerticalRecycleView); 22 | } 23 | -------------------------------------------------------------------------------- /DragBoardView/src/main/java/com/time/cat/dragboardview/utils/RecyclerviewUtils.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.dragboardview.utils; 2 | 3 | import androidx.recyclerview.widget.RecyclerView; 4 | import android.view.View; 5 | 6 | import com.time.cat.dragboardview.PagerRecyclerView; 7 | 8 | /** 9 | * @author dlink 10 | * @email linxy59@mail2.sysu.edu.cn 11 | * @date 2018/4/3 12 | * @discription Recyclerview工具类，给 {@link PagerRecyclerView} 用 13 | * @usage null 14 | */ 15 | public class RecyclerviewUtils { 16 | 17 | /** 18 | * Get center child in X Axes 19 | */ 20 | public static View getCenterXChild(RecyclerView recyclerView) { 21 | int childCount = recyclerView.getChildCount(); 22 | if (childCount > 0) { 23 | for (int i = 0; i < childCount; i++) { 24 | View child = recyclerView.getChildAt(i); 25 | if (isChildInCenterX(recyclerView, child)) { 26 | return child; 27 | } 28 | } 29 | } 30 | return null; 31 | } 32 | 33 | /** 34 | * Get position of center child in X Axes 35 | */ 36 | public static int getCenterXChildPosition(RecyclerView recyclerView) { 37 | int childCount = recyclerView.getChildCount(); 38 | if (childCount > 0) { 39 | for (int i = 0; i < childCount; i++) { 40 | View child = recyclerView.getChildAt(i); 41 | if (isChildInCenterX(recyclerView, child)) { 42 | return recyclerView.getChildAdapterPosition(child); 43 | } 44 | } 45 | } 46 | return childCount; 47 | } 48 | 49 | /** 50 | * Get center child in Y Axes 51 | */ 52 | public static View getCenterYChild(RecyclerView recyclerView) { 53 | int childCount = recyclerView.getChildCount(); 54 | if (childCount > 0) { 55 | for (int i = 0; i < childCount; i++) { 56 | View child = recyclerView.getChildAt(i); 57 | if (isChildInCenterY(recyclerView, child)) { 58 | return child; 59 | } 60 | } 61 | } 62 | return null; 63 | } 64 | 65 | /** 66 | * Get position of center child in Y Axes 67 | */ 68 | public static int getCenterYChildPosition(RecyclerView recyclerView) { 69 | int childCount = recyclerView.getChildCount(); 70 | if (childCount > 0) { 71 | for (int i = 0; i < childCount; i++) { 72 | View child = recyclerView.getChildAt(i); 73 | if (isChildInCenterY(recyclerView, child)) { 74 | return recyclerView.getChildAdapterPosition(child); 75 | } 76 | } 77 | } 78 | return childCount; 79 | } 80 | 81 | public static boolean isChildInCenterX(RecyclerView recyclerView, View view) { 82 | int childCount = recyclerView.getChildCount(); 83 | int[] lvLocationOnScreen = new int[2]; 84 | int[] vLocationOnScreen = new int[2]; 85 | recyclerView.getLocationOnScreen(lvLocationOnScreen); 86 | int middleX = lvLocationOnScreen[0] + recyclerView.getWidth() / 2; 87 | if (childCount > 0) { 88 | view.getLocationOnScreen(vLocationOnScreen); 89 | if (vLocationOnScreen[0] <= middleX && vLocationOnScreen[0] + view.getWidth() >= middleX) { 90 | return true; 91 | } 92 | } 93 | return false; 94 | } 95 | 96 | public static boolean isChildInCenterY(RecyclerView recyclerView, View view) { 97 | int childCount = recyclerView.getChildCount(); 98 | int[] lvLocationOnScreen = new int[2]; 99 | int[] vLocationOnScreen = new int[2]; 100 | recyclerView.getLocationOnScreen(lvLocationOnScreen); 101 | int middleY = lvLocationOnScreen[1] + recyclerView.getHeight() / 2; 102 | if (childCount > 0) { 103 | view.getLocationOnScreen(vLocationOnScreen); 104 | if (vLocationOnScreen[1] <= middleY && vLocationOnScreen[1] + view.getHeight() >= middleY) { 105 | return true; 106 | } 107 | } 108 | return false; 109 | } 110 | } 111 | -------------------------------------------------------------------------------- /DragBoardView/src/main/res/layout/view_drag_board.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 9 | 19 | 20 | 21 | -------------------------------------------------------------------------------- /DragBoardView/src/main/res/values/attrs_pagerrecyclerview.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | -------------------------------------------------------------------------------- /LICENSE: -------------------------------------------------------------------------------- 1 | Apache License 2 | Version 2.0, January 2004 3 | http://www.apache.org/licenses/ 4 | 5 | TERMS AND CONDITIONS FOR USE, REPRODUCTION, AND DISTRIBUTION 6 | 7 | 1. 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We also recommend that a 185 | file or class name and description of purpose be included on the 186 | same "printed page" as the copyright notice for easier 187 | identification within third-party archives. 188 | 189 | Copyright {yyyy} {name of copyright owner} 190 | 191 | Licensed under the Apache License, Version 2.0 (the "License"); 192 | you may not use this file except in compliance with the License. 193 | You may obtain a copy of the License at 194 | 195 | http://www.apache.org/licenses/LICENSE-2.0 196 | 197 | Unless required by applicable law or agreed to in writing, software 198 | distributed under the License is distributed on an "AS IS" BASIS, 199 | WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 200 | See the License for the specific language governing permissions and 201 | limitations under the License. 202 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DragBoardView 2 | 3 | [![Codacy Badge](https://api.codacy.com/project/badge/Grade/660b2a6d67e9426fa887d782fdc22bd1)](https://app.codacy.com/app/LinXueyuanStdio/DragBoardView?utm_source=github.com&utm_medium=referral&utm_content=LinXueyuanStdio/DragBoardView&utm_campaign=Badge_Grade_Dashboard) 4 | 5 | 6 | DragBoardView is a draggable kanban/board view for Android. it supports `drag item`, `drag column`, `auto center` 7 | 8 | You can just use it like a RecyclerView! 9 | 10 | ## Just use it like a RecyclerView! [中文文档](https://github.com/LinXueyuanStdio/DragBoardView/blob/master/README_zh.md) 11 | 12 | How to use Recyclerview: 13 | 14 |
15 | 1. Add dependency for recyclerview 16 | 17 | ``` 18 | compile 'com.android.support:recyclerview-v7:23.1.0' 19 | ``` 20 | 21 | Add recyclerview in main layout file 22 | 23 | ```xml 24 | 25 | 32 | 38 | 39 | ``` 40 | 41 |
42 | 43 |
44 | 2. Make one item layout xml file 45 | 46 | ```xml 47 | 51 | 52 | 58 | 62 | 63 | 64 | ``` 65 |
66 | 67 |
68 | 3. Make model class for each item in list. 69 | 70 | it can be any custom class. 71 | 72 | ```java 73 | public class Item { 74 | 75 | private String name; 76 | 77 | public Item(String n) { 78 | name = n; 79 | } 80 | public String getName() { 81 | return name; 82 | } 83 | 84 | public void setName(String name) { 85 | this.name = name; 86 | } 87 | } 88 | ``` 89 |
90 | 91 |
92 | 4. make adapter for recyclerview 93 | 94 | ```java 95 | import androidx.recyclerview.widget.RecyclerView; 96 | import android.util.Log; 97 | import android.view.LayoutInflater; 98 | import android.view.View; 99 | import android.view.ViewGroup; 100 | import android.widget.TextView; 101 | import com.codexpedia.list.viewholder.R; 102 | import java.util.ArrayList; 103 | 104 | public class ItemArrayAdapter extends RecyclerView.Adapter { 105 | 106 | //All methods in this adapter are required for a bare minimum recyclerview adapter 107 | private int listItemLayout; 108 | private ArrayList itemList; 109 | // Constructor of the class 110 | public ItemArrayAdapter(int layoutId, ArrayList itemList) { 111 | listItemLayout = layoutId; 112 | this.itemList = itemList; 113 | } 114 | 115 | // get the size of the list 116 | @Override 117 | public int getItemCount() { 118 | return itemList == null ? 0 : itemList.size(); 119 | } 120 | 121 | 122 | // specify the row layout file and click for each row 123 | @Override 124 | public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 125 | View view = LayoutInflater.from(parent.getContext()).inflate(listItemLayout, parent, false); 126 | ViewHolder myViewHolder = new ViewHolder(view); 127 | return myViewHolder; 128 | } 129 | 130 | // load data in each row element 131 | @Override 132 | public void onBindViewHolder(final ViewHolder holder, final int listPosition) { 133 | TextView item = holder.item; 134 | item.setText(itemList.get(listPosition).getName()); 135 | } 136 | 137 | // Static inner class to initialize the views of rows 138 | static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 139 | public TextView item; 140 | public ViewHolder(View itemView) { 141 | super(itemView); 142 | itemView.setOnClickListener(this); 143 | item = (TextView) itemView.findViewById(R.id.txtChords); 144 | } 145 | @Override 146 | public void onClick(View view) { 147 | Log.d("onclick", "onClick " + getLayoutPosition() + " " + item.getText()); 148 | } 149 | } 150 | ``` 151 |
152 | 153 | 154 |
155 | 5. bind adapter with recyclerview 156 | 157 | ```java 158 | import android.os.Bundle; 159 | import androidx.appcompat.app.AppCompatActivity; 160 | import androidx.recyclerview.widget.DefaultItemAnimator; 161 | import androidx.recyclerview.widget.LinearLayoutManager; 162 | import androidx.recyclerview.widget.RecyclerView; 163 | 164 | import com.codexpedia.list.viewholder.R; 165 | 166 | import java.util.ArrayList; 167 | 168 | public class MainActivity extends AppCompatActivity { 169 | 170 | RecyclerView recyclerView; 171 | 172 | @Override 173 | protected void onCreate(Bundle savedInstanceState) { 174 | super.onCreate(savedInstanceState); 175 | setContentView(R.layout.activity_main); 176 | 177 | // Initializing list view with the custom adapter 178 | ArrayList itemList = new ArrayList(); 179 | 180 | ItemArrayAdapter itemArrayAdapter = new ItemArrayAdapter(R.layout.list_item, itemList); 181 | recyclerView = (RecyclerView) findViewById(R.id.item_list); 182 | recyclerView.setLayoutManager(new LinearLayoutManager(this)); 183 | recyclerView.setItemAnimator(new DefaultItemAnimator()); 184 | recyclerView.setAdapter(itemArrayAdapter); 185 | 186 | // Populating list items 187 | for(int i=0; i<100; i++) { 188 | itemList.add(new Item("Item " + i)); 189 | } 190 | 191 | } 192 | 193 | } 194 | ``` 195 | 196 |
197 | 198 | 199 | 200 | As for DragBoardView, it's all the same. 201 | 202 | How to use DragBoardView: 203 | 204 |
205 | 1. Add dependency for DragBoardView 206 | 207 | Add it in your `root` `build.gradle` at the end of repositories: 208 | ```gradle 209 | allprojects { 210 | repositories { 211 | ... 212 | maven { url 'https://jitpack.io' } 213 | } 214 | } 215 | ``` 216 | Add the dependency 217 | ```gradle 218 | dependencies { 219 | compile 'com.github.LinXueyuanStdio:DragBoardView:v1.0.0' 220 | } 221 | ``` 222 | 223 | declare it in your main layout xml file: 224 | 225 | ```xml 226 | 227 | 228 | 232 | 233 | 238 | 239 | 244 | 245 | 246 | ``` 247 | 248 |
249 | 250 |
251 | 2. Make two item layout xml files. 252 | 253 | One for each column item. it should contains a `RecyclerView` 254 | 255 | ```xml 256 | 257 | 262 | 263 | 267 | 268 | 269 | ``` 270 | 271 | One for the item in each column. 272 | 273 | ```xml 274 | 279 | ``` 280 | 281 |
282 | 283 |
284 | 3. Make model class for each column and each item in list. 285 | 286 | for each column, it should implement `DragColumn` interface. 287 | 288 | ```java 289 | public class Entry implements DragColumn { 290 | private final String name; 291 | private int columnIndex; 292 | private final List itemList; 293 | 294 | public Entry(String name, int columnIndex, List items) { 295 | this.name = name; 296 | this.columnIndex = columnIndex; 297 | this.itemList = items; 298 | } 299 | 300 | public String getName() { 301 | return name; 302 | } 303 | 304 | public List getItemList() { 305 | return itemList; 306 | } 307 | 308 | @Override 309 | public int getColumnIndex() { 310 | return columnIndex; 311 | } 312 | 313 | @Override 314 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 315 | //save to database here 316 | } 317 | } 318 | 319 | ``` 320 | 321 | for each item in the column, it should implement `DragItem` interface. 322 | 323 | ```java 324 | public class Item implements DragItem { 325 | private final String itemName; 326 | private int colIndex; 327 | private int itemIndex; 328 | 329 | public Item(String itemName, int colIndex, int itemIndex) { 330 | this.itemName = itemName; 331 | this.colIndex = colIndex; 332 | this.itemIndex = itemIndex; 333 | } 334 | 335 | public String getItemName() { 336 | return itemName; 337 | } 338 | 339 | @Override 340 | public int getColumnIndex() { 341 | return colIndex; 342 | } 343 | 344 | @Override 345 | public int getItemIndex() { 346 | return itemIndex; 347 | } 348 | 349 | @Override 350 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 351 | //save to database here 352 | } 353 | 354 | @Override 355 | public void setItemIndex(int itemIndexInVerticalRecycleView) { 356 | //save to database here 357 | } 358 | } 359 | ``` 360 | 361 |
362 | 363 |
364 | 4. make adapter for DragBoardView 365 | 366 | ```java 367 | public class ColumnAdapter extends HorizontalAdapter 368 | public class ItemAdapter extends VerticalAdapter 369 | ``` 370 |
371 | 372 | 373 |
374 | 5. bind adapter with DragBoardView 375 | 376 | ```java 377 | public class MainActivity extends AppCompatActivity { 378 | 379 | DragBoardView dragBoardView; 380 | List mData = new ArrayList<>(); 381 | 382 | @Override 383 | protected void onCreate(Bundle savedInstanceState) { 384 | super.onCreate(savedInstanceState); 385 | setContentView(R.layout.activity_main); 386 | 387 | dragBoardView = findViewById(R.id.layout_main); 388 | mAdapter = new ColumnAdapter(this); 389 | mAdapter.setData(mData); 390 | dragBoardView.setHorizontalAdapter(mAdapter); 391 | } 392 | 393 | } 394 | ``` 395 | 396 |
397 | 398 | ## gif 399 | 400 | 401 | 402 | ## ScreenShot 403 | 404 | | | | | 405 | |:---:|:---:|:---:| 406 | |![截图1](/art/device-2018-04-04-085942.png)|![截图2](/art/device-2018-04-04-090017.png)|![截图3](/art/device-2018-04-04-090030.png)| 407 | |![截图4](/art/device-2018-04-04-090047.png)|![截图5](/art/device-2018-04-04-090115.png)| 408 | 409 | ## Advance 410 | 411 | Meanwhile, PagerRecyclerView is able to be customized by these 3 params: 412 | 413 | |name|format|description| 414 | |:---:|:---:|:---:| 415 | | singlePageFling | boolean | single Page Fling, default false | 416 | | triggerOffset | float | trigger offset, default 0.25f | 417 | | flingFactor | float | fling factor, default 0.15f | 418 | 419 | demo is more clear 420 | 421 | ## demo apk 422 | [download](art/app-debug.apk) 423 | -------------------------------------------------------------------------------- /README_zh.md: -------------------------------------------------------------------------------- 1 | # DragBoardView 2 | 3 | Android 可拖拽的看板视图, 支持项拖拽、列拖拽，支持自动居中。 4 | 5 | 简单易用，和 `RecyclerView` 用法完全一样！ 6 | 7 | ## 像 `RecyclerView` 一样使用 `DragBoardView` ! [中文文档](https://github.com/LinXueyuanStdio/DragBoardView/blob/master/README_zh.md) 8 | 9 | `Recyclerview` 的用法: 10 | 11 |
12 | 1. 添加 recyclerview 的依赖 13 | 14 | ``` 15 | compile 'com.android.support:recyclerview-v7:23.1.0' 16 | ``` 17 | 18 | 在 xml 布局文件中声明: 19 | 20 | ```xml 21 | 22 | 27 | 28 | 32 | 33 | ``` 34 |
35 | 36 |
37 | 2. 写 item 的布局 38 | 39 | ```xml 40 | 44 | 45 | 51 | 55 | 56 | 57 | ``` 58 |
59 | 60 |
61 | 3. 写 item 对应的数据类. 62 | 63 | 什么类都行 64 | 65 | ```java 66 | public class Item { 67 | 68 | private String name; 69 | 70 | public Item(String n) { 71 | name = n; 72 | } 73 | public String getName() { 74 | return name; 75 | } 76 | 77 | public void setName(String name) { 78 | this.name = name; 79 | } 80 | } 81 | ``` 82 |
83 | 84 |
85 | 4. 写适配器 adapter 86 | 87 | ```java 88 | public class ItemArrayAdapter extends RecyclerView.Adapter { 89 | 90 | //All methods in this adapter are required for a bare minimum recyclerview adapter 91 | private int listItemLayout; 92 | private ArrayList itemList; 93 | // Constructor of the class 94 | public ItemArrayAdapter(int layoutId, ArrayList itemList) { 95 | listItemLayout = layoutId; 96 | this.itemList = itemList; 97 | } 98 | 99 | // get the size of the list 100 | @Override 101 | public int getItemCount() { 102 | return itemList == null ? 0 : itemList.size(); 103 | } 104 | 105 | 106 | // specify the row layout file and click for each row 107 | @Override 108 | public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 109 | View view = LayoutInflater.from(parent.getContext()).inflate(listItemLayout, parent, false); 110 | ViewHolder myViewHolder = new ViewHolder(view); 111 | return myViewHolder; 112 | } 113 | 114 | // load data in each row element 115 | @Override 116 | public void onBindViewHolder(final ViewHolder holder, final int listPosition) { 117 | TextView item = holder.item; 118 | item.setText(itemList.get(listPosition).getName()); 119 | } 120 | 121 | // Static inner class to initialize the views of rows 122 | static class ViewHolder extends RecyclerView.ViewHolder implements View.OnClickListener { 123 | public TextView item; 124 | public ViewHolder(View itemView) { 125 | super(itemView); 126 | itemView.setOnClickListener(this); 127 | item = (TextView) itemView.findViewById(R.id.txtChords); 128 | } 129 | @Override 130 | public void onClick(View view) { 131 | Log.d("onclick", "onClick " + getLayoutPosition() + " " + item.getText()); 132 | } 133 | } 134 | ``` 135 |
136 | 137 | 138 |
139 | 5. 将适配器 adapter 和 recyclerview 绑定 140 | 141 | ```java 142 | public class MainActivity extends AppCompatActivity { 143 | 144 | RecyclerView recyclerView; 145 | 146 | @Override 147 | protected void onCreate(Bundle savedInstanceState) { 148 | super.onCreate(savedInstanceState); 149 | setContentView(R.layout.activity_main); 150 | 151 | // Initializing list view with the custom adapter 152 | ArrayList itemList = new ArrayList(); 153 | 154 | ItemArrayAdapter itemArrayAdapter = new ItemArrayAdapter(R.layout.list_item, itemList); 155 | recyclerView = (RecyclerView) findViewById(R.id.item_list); 156 | recyclerView.setLayoutManager(new LinearLayoutManager(this)); 157 | recyclerView.setItemAnimator(new DefaultItemAnimator()); 158 | recyclerView.setAdapter(itemArrayAdapter); 159 | 160 | // Populating list items 161 | for(int i=0; i<100; i++) { 162 | itemList.add(new Item("Item " + i)); 163 | } 164 | 165 | } 166 | 167 | } 168 | ``` 169 | 170 |
171 | 172 | `DragBoardView` 的用法和 `RecyclerView` 一样。 173 | 174 | `DragBoardView` 的用法: 175 | 176 |
177 | 1. 添加 DragBoardView 的依赖 178 | 179 | 在项目根目录的 `build.gradle` 添加: 180 | ```gradle 181 | allprojects { 182 | repositories { 183 | ... 184 | maven { url 'https://jitpack.io' } 185 | } 186 | } 187 | ``` 188 | 189 | 添加依赖 190 | 191 | ```gradle 192 | dependencies { 193 | compile 'com.github.LinXueyuanStdio:DragBoardView:v1.0.0' 194 | } 195 | ``` 196 | 197 | 在 `xml` 中声明使用 198 | 199 | ```xml 200 | 201 | 205 | 206 | 211 | 212 | 217 | 218 | 219 | ``` 220 | 221 |
222 | 223 |
224 | 2. 写 column 和 item 的布局文件. 225 | 226 | column 是列，它必须包含一个 `RecyclerView` 227 | 228 | ```xml 229 | 230 | 235 | 236 | 240 | 241 | 242 | ``` 243 | 244 | item 是列中的项，它的布局请随便写 245 | 246 | ```xml 247 | 252 | ``` 253 | 254 |
255 | 256 |
257 | 3. 写 column 和 item 对应的数据类 258 | 259 | column 类必须实现 `DragColumn` 接口. 260 | 261 | ```java 262 | public class Entry implements DragColumn { 263 | private final String name; 264 | private int columnIndex; 265 | private final List itemList; 266 | 267 | public Entry(String name, int columnIndex, List items) { 268 | this.name = name; 269 | this.columnIndex = columnIndex; 270 | this.itemList = items; 271 | } 272 | 273 | public String getName() { 274 | return name; 275 | } 276 | 277 | public List getItemList() { 278 | return itemList; 279 | } 280 | 281 | @Override 282 | public int getColumnIndex() { 283 | return columnIndex; 284 | } 285 | 286 | @Override 287 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 288 | //save to database here 289 | } 290 | } 291 | 292 | ``` 293 | 294 | item 类必须实现 `DragItem` 接口. 295 | 296 | ```java 297 | public class Item implements DragItem { 298 | private final String itemName; 299 | private int colIndex; 300 | private int itemIndex 301 | 302 | public Item(String itemName, int colIndex, int itemIndex) { 303 | this.itemName = itemName; 304 | this.colIndex = colIndex; 305 | this.itemIndex = itemIndex; 306 | } 307 | 308 | public String getItemName() { 309 | return itemName; 310 | } 311 | 312 | @Override 313 | public int getColumnIndex() { 314 | return colIndex; 315 | } 316 | 317 | @Override 318 | public int getItemIndex() { 319 | return itemIndex; 320 | } 321 | 322 | @Override 323 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 324 | //save to database here 325 | } 326 | 327 | @Override 328 | public void setItemIndex(int itemIndexInVerticalRecycleView) { 329 | //save to database here 330 | } 331 | } 332 | ``` 333 | 334 |
335 | 336 |
337 | 4. 写适配器 adapter 338 | 339 | 有两个适配器，一个是列适配器，一个是列中包含的 `RecyclerView` 所需的适配器 340 | 341 | ```java 342 | public class ColumnAdapter extends HorizontalAdapter {...} 343 | public class ItemAdapter extends VerticalAdapter {...} 344 | ``` 345 |
346 | 347 | 348 |
349 | 5. 将适配器 adapter 和 DragBoardView 绑定 350 | 351 | ```java 352 | public class MainActivity extends AppCompatActivity { 353 | 354 | DragBoardView dragBoardView; 355 | List mData = new ArrayList<>(); 356 | 357 | @Override 358 | protected void onCreate(Bundle savedInstanceState) { 359 | super.onCreate(savedInstanceState); 360 | setContentView(R.layout.activity_main); 361 | 362 | dragBoardView = findViewById(R.id.layout_main); 363 | mAdapter = new ColumnAdapter(this); 364 | mAdapter.setData(mData); 365 | dragBoardView.setHorizontalAdapter(mAdapter); 366 | } 367 | 368 | } 369 | ``` 370 | 371 |
372 | 373 | ## gif 374 | 375 | 376 | 377 | ## 截图 378 | 379 | | | | | 380 | |:---:|:---:|:---:| 381 | |![截图1](/art/device-2018-04-04-085942.png)|![截图2](/art/device-2018-04-04-090017.png)|![截图3](/art/device-2018-04-04-090030.png)| 382 | |![截图4](/art/device-2018-04-04-090047.png)|![截图5](/art/device-2018-04-04-090115.png)| 383 | 384 | ## 进阶 385 | 386 | Meanwhile, PagerRecyclerView is able to be customized by these 3 params: 387 | 388 | |name|format|description| 389 | |:---:|:---:|:---:| 390 | | singlePageFling | boolean | single Page Fling, default false | 391 | | triggerOffset | float | trigger offset, default 0.25f | 392 | | flingFactor | float | fling factor, default 0.15f | 393 | 394 | demo 给出了最小实现。 395 | 396 | ## demo apk 397 | [download](art/app-debug.apk) 398 | -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 28 5 | buildToolsVersion '28.0.3' 6 | defaultConfig { 7 | applicationId "com.time.cat.dragboardview" 8 | minSdkVersion 22 9 | targetSdkVersion 28 10 | versionCode 1 11 | versionName "1.0" 12 | testInstrumentationRunner 'androidx.test.runner.AndroidJUnitRunner' 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | dependencies { 22 | implementation fileTree(dir: 'libs', include: ['*.jar']) 23 | implementation 'androidx.appcompat:appcompat:1.0.0' 24 | implementation "androidx.cardview:cardview:1.0.0" 25 | // material dialog 26 | implementation 'com.afollestad.material-dialogs:commons:0.9.6.0' 27 | 28 | implementation project(path: ':DragBoardView') 29 | // implementation 'com.github.LinXueyuanStdio:DragBoardView:v1.0.0' 30 | } 31 | 32 | -------------------------------------------------------------------------------- /app/proguard-rules.pro: -------------------------------------------------------------------------------- 1 | # Add project specific ProGuard rules here. 2 | # You can control the set of applied configuration files using the 3 | # proguardFiles setting in build.gradle. 4 | # 5 | # For more details, see 6 | # http://developer.android.com/guide/developing/tools/proguard.html 7 | 8 | # If your project uses WebView with JS, uncomment the following 9 | # and specify the fully qualified class name to the JavaScript interface 10 | # class: 11 | #-keepclassmembers class fqcn.of.javascript.interface.for.webview { 12 | # public *; 13 | #} 14 | 15 | # Uncomment this to preserve the line number information for 16 | # debugging stack traces. 17 | #-keepattributes SourceFile,LineNumberTable 18 | 19 | # If you keep the line number information, uncomment this to 20 | # hide the original source file name. 21 | #-renamesourcefileattribute SourceFile 22 | -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 11 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | 23 | -------------------------------------------------------------------------------- /app/src/main/java/com/time/cat/demo/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.demo; 2 | 3 | import android.os.Bundle; 4 | import androidx.appcompat.app.AppCompatActivity; 5 | import androidx.appcompat.widget.Toolbar; 6 | 7 | import com.time.cat.demo.adapter.ColumnAdapter; 8 | import com.time.cat.demo.data.Entry; 9 | import com.time.cat.demo.data.Item; 10 | import com.time.cat.dragboardview.DragBoardView; 11 | import com.time.cat.dragboardview.model.DragColumn; 12 | import com.time.cat.dragboardview.model.DragItem; 13 | 14 | import java.util.ArrayList; 15 | import java.util.List; 16 | 17 | /** 18 | * @author dlink 19 | * @email linxy59@mail2.sysu.edu.cn 20 | * @date 2018/4/3 21 | * @discription 主界面 22 | * @usage null 23 | */ 24 | public class MainActivity extends AppCompatActivity { 25 | 26 | private ColumnAdapter mAdapter; 27 | DragBoardView dragBoardView; 28 | private List mData = new ArrayList<>(); 29 | 30 | @Override 31 | protected void onCreate(Bundle savedInstanceState) { 32 | super.onCreate(savedInstanceState); 33 | setContentView(R.layout.activity_main); 34 | 35 | Toolbar toolbar = (Toolbar) findViewById(R.id.toolbar); 36 | setSupportActionBar(toolbar); 37 | 38 | dragBoardView = findViewById(R.id.layout_main); 39 | mAdapter = new ColumnAdapter(this); 40 | mAdapter.setData(mData); 41 | dragBoardView.setHorizontalAdapter(mAdapter); 42 | 43 | getDataAndRefreshView(); 44 | } 45 | 46 | private void getDataAndRefreshView() { 47 | for (int i = 0; i < 3; i++) { 48 | List itemList = new ArrayList<>(); 49 | for (int j = 0; j < 5; j++) { 50 | itemList.add(new Item("entry " + i + " item id " + j, "item name " + j, "info " + j)); 51 | } 52 | mData.add(new Entry("entry id " + i, "name " + i, itemList)); 53 | } 54 | mAdapter.notifyDataSetChanged(); 55 | } 56 | } 57 | 58 | -------------------------------------------------------------------------------- /app/src/main/java/com/time/cat/demo/adapter/ColumnAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.demo.adapter; 2 | 3 | import android.content.Context; 4 | import androidx.annotation.NonNull; 5 | import androidx.recyclerview.widget.LinearLayoutManager; 6 | import androidx.recyclerview.widget.RecyclerView; 7 | import android.text.TextUtils; 8 | import android.view.View; 9 | import android.widget.Button; 10 | import android.widget.EditText; 11 | import android.widget.ImageView; 12 | import android.widget.RelativeLayout; 13 | import android.widget.TextView; 14 | 15 | import com.afollestad.materialdialogs.DialogAction; 16 | import com.afollestad.materialdialogs.MaterialDialog; 17 | import com.time.cat.demo.R; 18 | import com.time.cat.demo.data.Entry; 19 | import com.time.cat.demo.data.Item; 20 | import com.time.cat.dragboardview.adapter.HorizontalAdapter; 21 | import com.time.cat.dragboardview.model.DragColumn; 22 | import com.time.cat.dragboardview.model.DragItem; 23 | 24 | import java.util.ArrayList; 25 | import java.util.List; 26 | 27 | /** 28 | * @author dlink 29 | * @email linxy59@mail2.sysu.edu.cn 30 | * @date 2018/4/3 31 | * @discription 水平排列的列表 32 | * @usage null 33 | */ 34 | public class ColumnAdapter extends HorizontalAdapter { 35 | 36 | public ColumnAdapter(Context context) { 37 | super(context); 38 | } 39 | 40 | @Override 41 | public boolean needFooter() { 42 | return true; 43 | } 44 | 45 | @Override 46 | public int getContentLayoutRes() { 47 | return R.layout.recyclerview_item_entry; 48 | } 49 | 50 | @Override 51 | public int getFooterLayoutRes() { 52 | return R.layout.recyclerview_footer_addlist; 53 | } 54 | 55 | @Override 56 | public ViewHolder onCreateViewHolder(View parent, int viewType) { 57 | return new ViewHolder(parent, viewType); 58 | } 59 | 60 | @Override 61 | public void onBindContentViewHolder(final ViewHolder holder, DragColumn dragColumn, int position) { 62 | holder.itemView.setOnLongClickListener(new View.OnLongClickListener() { 63 | @Override 64 | public boolean onLongClick(View v) { 65 | dragCol(holder); 66 | return true; 67 | } 68 | }); 69 | 70 | final Entry entry = (Entry) dragColumn; 71 | holder.tv_title.setText(entry.getId()); 72 | final List itemList = entry.getItemList(); 73 | LinearLayoutManager layoutManager = new LinearLayoutManager(mContext); 74 | holder.rv_item.setLayoutManager(layoutManager); 75 | final ItemAdapter itemAdapter = new ItemAdapter(mContext, dragHelper); 76 | itemAdapter.setData(itemList); 77 | holder.rv_item.setAdapter(itemAdapter); 78 | holder.add_task.setOnClickListener(new View.OnClickListener() { 79 | @Override 80 | public void onClick(View v) { 81 | //do something 82 | // plz replace below with your action 83 | new MaterialDialog.Builder(mContext) 84 | .content("添加一个卡片") 85 | .positiveText("添加") 86 | .onPositive(new MaterialDialog.SingleButtonCallback() { 87 | @Override 88 | public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) { 89 | // add new Item instantly 90 | itemList.add(new Item( 91 | "entry " + " item id ", 92 | "item name : new Item", 93 | "info : new Item")); 94 | itemAdapter.notifyItemInserted(itemAdapter.getItemCount() - 1); 95 | // then add new Item to your database in io thread 96 | // then view will auto-refresh 97 | } 98 | }) 99 | .negativeText("取消") 100 | .onNegative(new MaterialDialog.SingleButtonCallback() { 101 | @Override 102 | public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) { 103 | dialog.dismiss(); 104 | } 105 | }) 106 | .show(); 107 | } 108 | }); 109 | } 110 | 111 | @Override 112 | public void onBindFooterViewHolder(final ViewHolder holder, int position) { 113 | holder.add_subPlan.setOnClickListener(new View.OnClickListener() { 114 | @Override 115 | public void onClick(View v) { 116 | holder.add_subPlan.setVisibility(View.GONE); 117 | holder.edit_sub_plan.setVisibility(View.VISIBLE); 118 | } 119 | }); 120 | holder.btn_cancel.setOnClickListener(new View.OnClickListener() { 121 | @Override 122 | public void onClick(View v) { 123 | holder.add_subPlan.setVisibility(View.VISIBLE); 124 | holder.edit_sub_plan.setVisibility(View.GONE); 125 | } 126 | }); 127 | holder.btn_ok.setOnClickListener(new View.OnClickListener() { 128 | @Override 129 | public void onClick(View v) { 130 | String name = holder.editText.getText().toString(); 131 | if (!TextUtils.isEmpty(name)) { 132 | appendNewColumn(new Entry( 133 | "entry id " + name, 134 | "name : new entry", 135 | new ArrayList())); 136 | } 137 | } 138 | }); 139 | } 140 | 141 | public class ViewHolder extends HorizontalAdapter.ViewHolder { 142 | 143 | RelativeLayout col_content_container; 144 | ImageView title_icon; 145 | TextView tv_title; 146 | RecyclerView rv_item; 147 | RelativeLayout add_task; 148 | 149 | RelativeLayout add_subPlan; 150 | RelativeLayout edit_sub_plan; 151 | Button btn_cancel; 152 | Button btn_ok; 153 | EditText editText; 154 | 155 | public ViewHolder(View convertView, int itemType) { 156 | super(convertView, itemType); 157 | } 158 | 159 | @Override 160 | public RecyclerView getRecyclerView() { 161 | return rv_item; 162 | } 163 | 164 | @Override 165 | public void findViewForContent(View convertView) { 166 | col_content_container = convertView.findViewById(R.id.col_content_container); 167 | title_icon = convertView.findViewById(R.id.title_icon); 168 | tv_title = convertView.findViewById(R.id.tv_title); 169 | rv_item = convertView.findViewById(R.id.rv); 170 | add_task = convertView.findViewById(R.id.add); 171 | } 172 | 173 | @Override 174 | public void findViewForFooter(View convertView) { 175 | add_subPlan = convertView.findViewById(R.id.add_sub_plan); 176 | edit_sub_plan = convertView.findViewById(R.id.edit_sub_plan); 177 | btn_cancel = convertView.findViewById(R.id.add_cancel); 178 | btn_ok = convertView.findViewById(R.id.add_ok); 179 | editText = convertView.findViewById(R.id.add_et); 180 | } 181 | } 182 | } 183 | 184 | 185 | -------------------------------------------------------------------------------- /app/src/main/java/com/time/cat/demo/adapter/ItemAdapter.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.demo.adapter; 2 | 3 | import android.content.Context; 4 | import androidx.annotation.NonNull; 5 | import androidx.recyclerview.widget.RecyclerView; 6 | import android.view.LayoutInflater; 7 | import android.view.View; 8 | import android.view.ViewGroup; 9 | import android.widget.TextView; 10 | 11 | import com.time.cat.demo.R; 12 | import com.time.cat.demo.data.Item; 13 | import com.time.cat.dragboardview.adapter.VerticalAdapter; 14 | import com.time.cat.dragboardview.helper.DragHelper; 15 | import com.time.cat.dragboardview.model.DragItem; 16 | 17 | /** 18 | * @author dlink 19 | * @email linxy59@mail2.sysu.edu.cn 20 | * @date 2018/4/3 21 | * @discription 垂直排列的子项卡片 22 | * @usage null 23 | */ 24 | public class ItemAdapter extends VerticalAdapter { 25 | 26 | public ItemAdapter(Context context, DragHelper dragHelper) { 27 | super(context, dragHelper); 28 | } 29 | 30 | @Override 31 | public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 32 | View convertView = LayoutInflater.from(mContext).inflate(R.layout.recyclerview_item_item, parent, false); 33 | return new ViewHolder(convertView); 34 | } 35 | 36 | @Override 37 | public void onBindViewHolder(Context context, final ViewHolder holder, @NonNull DragItem item, final int position) { 38 | holder.itemView.setOnLongClickListener(new View.OnLongClickListener() { 39 | @Override 40 | public boolean onLongClick(View v) { 41 | dragItem(holder); 42 | return true; 43 | } 44 | }); 45 | holder.item_title.setText(((Item) item).getItemName()); 46 | } 47 | 48 | static class ViewHolder extends RecyclerView.ViewHolder { 49 | TextView item_title; 50 | 51 | public ViewHolder(View itemView) { 52 | super(itemView); 53 | item_title = itemView.findViewById(R.id.item_title); 54 | } 55 | } 56 | } 57 | -------------------------------------------------------------------------------- /app/src/main/java/com/time/cat/demo/data/Entry.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.demo.data; 2 | 3 | import com.time.cat.dragboardview.model.DragColumn; 4 | import com.time.cat.dragboardview.model.DragItem; 5 | 6 | import java.util.List; 7 | 8 | /** 9 | * @author dlink 10 | * @email linxy59@mail2.sysu.edu.cn 11 | * @date 2018/4/3 12 | * @discription 列表项，每个列表项包含一个子项的List {@link List} 13 | * @usage null 14 | */ 15 | public class Entry implements DragColumn { 16 | private final String id; 17 | private final String name; 18 | private final List itemList; 19 | 20 | public Entry(String id, String name, List items) { 21 | this.id = id; 22 | this.name = name; 23 | this.itemList = items; 24 | } 25 | 26 | public String getId() { 27 | return id; 28 | } 29 | 30 | public String getName() { 31 | return name; 32 | } 33 | 34 | public List getItemList() { 35 | return itemList; 36 | } 37 | 38 | @Override 39 | public int getColumnIndex() { 40 | return 0; 41 | } 42 | 43 | @Override 44 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 45 | 46 | } 47 | } 48 | -------------------------------------------------------------------------------- /app/src/main/java/com/time/cat/demo/data/Item.java: -------------------------------------------------------------------------------- 1 | package com.time.cat.demo.data; 2 | 3 | import com.time.cat.dragboardview.model.DragItem; 4 | 5 | /** 6 | * @author dlink 7 | * @email linxy59@mail2.sysu.edu.cn 8 | * @date 2018/4/3 9 | * @discription 子项 10 | * @usage null 11 | */ 12 | public class Item implements DragItem { 13 | private final String itemId; 14 | private final String itemName; 15 | private final String info; 16 | 17 | public Item(String itemId, String itemName, String info) { 18 | this.itemId = itemId; 19 | this.itemName = itemName; 20 | this.info = info; 21 | } 22 | 23 | public String getItemId() { 24 | return itemId; 25 | } 26 | 27 | public String getItemName() { 28 | return itemName; 29 | } 30 | 31 | public String getInfo() { 32 | return info; 33 | } 34 | 35 | @Override 36 | public int getColumnIndex() { 37 | return 0; 38 | } 39 | 40 | @Override 41 | public int getItemIndex() { 42 | return 0; 43 | } 44 | 45 | @Override 46 | public void setColumnIndex(int columnIndexInHorizontalRecycleView) { 47 | 48 | } 49 | 50 | @Override 51 | public void setItemIndex(int itemIndexInVerticalRecycleView) { 52 | 53 | } 54 | } 55 | 56 | 57 | -------------------------------------------------------------------------------- /app/src/main/res/drawable-v24/ic_launcher_foreground.xml: -------------------------------------------------------------------------------- 1 | 7 | 12 | 13 | 19 | 22 | 25 | 26 | 27 | 28 | 34 | 35 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_action_add.xml: -------------------------------------------------------------------------------- 1 | 6 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_launcher_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 8 | 11 | 16 | 21 | 26 | 31 | 36 | 41 | 46 | 51 | 56 | 61 | 66 | 71 | 76 | 81 | 86 | 91 | 96 | 101 | 106 | 111 | 116 | 121 | 126 | 131 | 136 | 141 | 146 | 151 | 156 | 161 | 166 | 171 | 172 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/ic_more_grey_24dp.xml: -------------------------------------------------------------------------------- 1 | 6 | 9 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/shape_rectangle_with_radius.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 6 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 2 | 6 | 7 | 12 | 13 | 18 | 19 | 20 | -------------------------------------------------------------------------------- /app/src/main/res/layout/recyclerview_footer_addlist.xml: -------------------------------------------------------------------------------- 1 | 2 | 7 | 8 | 17 | 18 | 24 | 25 | 31 | 32 | 39 | 40 | 41 | 48 | 49 | 61 | 62 |