├── .gitignore ├── .idea ├── .name ├── compiler.xml ├── copyright │ └── profiles_settings.xml ├── gradle.xml ├── misc.xml ├── modules.xml ├── runConfigurations.xml └── vcs.xml ├── DNDGridViewTest.iml ├── README.md ├── app ├── .gitignore ├── app.iml ├── build.gradle ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── sun │ │ └── bob │ │ └── dndgridviewtest │ │ └── ApplicationTest.java │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── sun │ │ └── bob │ │ └── dndgridviewtest │ │ └── MainActivity.java │ └── res │ ├── drawable │ └── img0.png │ ├── layout │ ├── activity_main.xml │ └── dnd_item.xml │ ├── menu │ └── menu_main.xml │ ├── mipmap-hdpi │ └── ic_launcher.png │ ├── mipmap-mdpi │ └── ic_launcher.png │ ├── mipmap-xhdpi │ └── ic_launcher.png │ ├── mipmap-xxhdpi │ └── ic_launcher.png │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── dndgridview ├── .gitignore ├── build.gradle ├── dndgridview.iml ├── proguard-rules.pro └── src │ ├── androidTest │ └── java │ │ └── sun │ │ └── bob │ │ └── dndgridview │ │ └── ApplicationTest.java │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── sun │ │ └── bob │ │ └── dndgridview │ │ ├── DNDAdapter.java │ │ ├── DNDGridView.java │ │ └── DNDViewHolder.java │ └── res │ └── values │ └── strings.xml ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat ├── screenshot └── shot.gif └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | .gradle 2 | /local.properties 3 | /.idea/workspace.xml 4 | /.idea/libraries 5 | .DS_Store 6 | /build 7 | /captures 8 | -------------------------------------------------------------------------------- /.idea/.name: -------------------------------------------------------------------------------- 1 | DNDGridViewTest -------------------------------------------------------------------------------- /.idea/compiler.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 22 | -------------------------------------------------------------------------------- /.idea/copyright/profiles_settings.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | -------------------------------------------------------------------------------- /.idea/gradle.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 19 | 20 | -------------------------------------------------------------------------------- /.idea/misc.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 19 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | Android 39 | 40 | 41 | Android Lint 42 | 43 | 44 | Java language level migration aids 45 | 46 | 47 | 48 | 49 | Abstraction issues 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 71 | -------------------------------------------------------------------------------- /.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 | -------------------------------------------------------------------------------- /DNDGridViewTest.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | -------------------------------------------------------------------------------- /README.md: -------------------------------------------------------------------------------- 1 | # DNDGridView 2 | 3 | [![Android Arsenal](https://img.shields.io/badge/Android%20Arsenal-DNDGridView-green.svg?style=flat)](https://android-arsenal.com/details/1/2385) 4 | 5 | Drag & Drop GridView on Android. 6 | 7 | ## Poject Components 8 | 9 | DNDGridView provide below components. 10 | 11 | * DNDGridView, which is a customized GridView. 12 | * DNDAdapter, most of the drag & drop part is done in this file. 13 | * DNDViewHolder, provide ViewHolder which can save current view's position. 14 | 15 | ## Project Structure 16 | After checkout this repo, you will get a sample project and the DNDGridView module is located in `dndgridview` folder. 17 | ## Usage 18 | 19 | To use DNDGridView, you need to add it in layout xml file or Java code. 20 | 21 | 26 | 27 | DNDGridView has some restrictions which currently I didn't find a better way to bypass. 28 | 29 | First, DNDGridView widget only accept DNDAdapter as it's adapter. It will check adapter's type while calling setAdapter. If it's not an instance of DNDAdapter, it will throw a big IllegalArgumentException. 30 | 31 | So, to use drag & drop feature, you need to extend DNDAdapter using your own adapter. You can using sample project as reference. 32 | 33 | In short word, you must extends DNDAdapter, you MUST implement `getView` function, you MUST call `setUpDragNDrop` after you are done with your item view. 34 | 35 | ((DNDGridView) findViewById(R.id.id_dndgridview)).setAdapter(new DNDAdapter(this, R.layout.dnd_item) { 36 | ArrayList data; 37 | { 38 | data = new ArrayList(); 39 | for (int i = 0; i < 100; i++) { 40 | data.add("" + i); 41 | } 42 | this.setCustomArray(data); 43 | 44 | } 45 | @Override 46 | public View getView(int posistion, View convertView, ViewGroup parent) { 47 | View ret = convertView; 48 | ViewHolder tag; 49 | if (convertView == null) { 50 | ret = View.inflate(getContext(), R.layout.dnd_item, null); 51 | tag = new ViewHolder(posistion); 52 | tag.imageView = (ImageView) ret.findViewById(R.id.id_imageview); 53 | tag.textView = (TextView) ret.findViewById(R.id.id_textview); 54 | ret.setTag(tag); 55 | } else { 56 | tag = (ViewHolder) ret.getTag(); 57 | } 58 | tag.imageView.setImageResource(R.drawable.img0); 59 | tag.textView.setText((String) data.get(posistion)); 60 | setUpDragNDrop(posistion,ret); 61 | return ret; 62 | } 63 | }); 64 | 65 | Second, DNDGridView require a DNDViewHolder as view holder. So, if you are using your own viewholder, please extend DNDViewHolder to get this module working. If you didn't specified a view holder, DNDAdapter will automaticlly add one for you. 66 | 67 | In short word, your view holder MUST extends `DNDViewHolder` 68 | 69 | class ViewHolder extends DNDViewHolder { 70 | public ViewHolder(int posistion){ 71 | super(posistion); 72 | } 73 | Object data; 74 | ImageView imageView; 75 | TextView textView; 76 | } 77 | 78 | ## Screenshot 79 | Picture file size is 1.6MB so you may want to get yourself a cup of coffee while it's loading. 80 | ![Alt ](./screenshot/shot.gif) -------------------------------------------------------------------------------- /app/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /app/app.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 27 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | 97 | 98 | -------------------------------------------------------------------------------- /app/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.application' 2 | 3 | android { 4 | compileSdkVersion 22 5 | buildToolsVersion "22.0.1" 6 | 7 | defaultConfig { 8 | applicationId "sun.bob.dndgridviewtest" 9 | minSdkVersion 11 10 | targetSdkVersion 22 11 | versionCode 1 12 | versionName "1.0" 13 | } 14 | buildTypes { 15 | release { 16 | minifyEnabled false 17 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 18 | } 19 | } 20 | } 21 | 22 | dependencies { 23 | compile fileTree(dir: 'libs', include: ['*.jar']) 24 | compile 'com.android.support:appcompat-v7:22.2.1' 25 | compile project(':dndgridview') 26 | } 27 | -------------------------------------------------------------------------------- /app/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 /Developer/Android/sdk/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 | -------------------------------------------------------------------------------- /app/src/androidTest/java/sun/bob/dndgridviewtest/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridviewtest; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /app/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 5 | 10 | 13 | 14 | 15 | 16 | 17 | 18 | 19 | 20 | 21 | 22 | -------------------------------------------------------------------------------- /app/src/main/java/sun/bob/dndgridviewtest/MainActivity.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridviewtest; 2 | 3 | import android.support.v7.app.AppCompatActivity; 4 | import android.os.Bundle; 5 | import android.view.Menu; 6 | import android.view.MenuItem; 7 | import android.view.View; 8 | import android.view.ViewGroup; 9 | import android.widget.ImageView; 10 | import android.widget.TextView; 11 | 12 | import java.util.ArrayList; 13 | 14 | import sun.bob.dndgridview.DNDAdapter; 15 | import sun.bob.dndgridview.DNDGridView; 16 | import sun.bob.dndgridview.DNDViewHolder; 17 | 18 | public class MainActivity extends AppCompatActivity { 19 | 20 | @Override 21 | protected void onCreate(Bundle savedInstanceState) { 22 | super.onCreate(savedInstanceState); 23 | setContentView(R.layout.activity_main); 24 | ((DNDGridView) findViewById(R.id.id_dndgridview)).setAdapter(new DNDAdapter(this, R.layout.dnd_item) { 25 | ArrayList data; 26 | { 27 | data = new ArrayList(); 28 | for (int i = 0; i < 100; i++) { 29 | data.add("" + i); 30 | } 31 | this.setCustomArray(data); 32 | 33 | } 34 | @Override 35 | public View getView(int posistion, View convertView, ViewGroup parent) { 36 | View ret = convertView; 37 | ViewHolder tag; 38 | if (convertView == null) { 39 | ret = View.inflate(getContext(), R.layout.dnd_item, null); 40 | tag = new ViewHolder(posistion); 41 | tag.imageView = (ImageView) ret.findViewById(R.id.id_imageview); 42 | tag.textView = (TextView) ret.findViewById(R.id.id_textview); 43 | ret.setTag(tag); 44 | } else { 45 | tag = (ViewHolder) ret.getTag(); 46 | } 47 | tag.imageView.setImageResource(R.drawable.img0); 48 | tag.textView.setText((String) data.get(posistion)); 49 | setUpDragNDrop(posistion,ret); 50 | return ret; 51 | } 52 | }); 53 | } 54 | 55 | @Override 56 | public boolean onCreateOptionsMenu(Menu menu) { 57 | // Inflate the menu; this adds items to the action bar if it is present. 58 | getMenuInflater().inflate(R.menu.menu_main, menu); 59 | return true; 60 | } 61 | 62 | @Override 63 | public boolean onOptionsItemSelected(MenuItem item) { 64 | // Handle action bar item clicks here. The action bar will 65 | // automatically handle clicks on the Home/Up button, so long 66 | // as you specify a parent activity in AndroidManifest.xml. 67 | int id = item.getItemId(); 68 | 69 | //noinspection SimplifiableIfStatement 70 | if (id == R.id.action_settings) { 71 | return true; 72 | } 73 | 74 | return super.onOptionsItemSelected(item); 75 | } 76 | } 77 | 78 | class ViewHolder extends DNDViewHolder { 79 | public ViewHolder(int posistion){ 80 | super(posistion); 81 | } 82 | Object data; 83 | ImageView imageView; 84 | TextView textView; 85 | } 86 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/img0.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/app/src/main/res/drawable/img0.png -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_main.xml: -------------------------------------------------------------------------------- 1 | 7 | 8 | 10 | 15 | 16 | 17 | -------------------------------------------------------------------------------- /app/src/main/res/layout/dnd_item.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 9 | 15 | -------------------------------------------------------------------------------- /app/src/main/res/menu/menu_main.xml: -------------------------------------------------------------------------------- 1 | 4 | 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/mipmap-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/app/src/main/res/mipmap-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/app/src/main/res/mipmap-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/app/src/main/res/mipmap-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/mipmap-xxhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/app/src/main/res/mipmap-xxhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | DNDGridViewTest 3 | 4 | Hello world! 5 | Settings 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 7 | 8 | 9 | -------------------------------------------------------------------------------- /build.gradle: -------------------------------------------------------------------------------- 1 | // Top-level build file where you can add configuration options common to all sub-projects/modules. 2 | 3 | buildscript { 4 | repositories { 5 | jcenter() 6 | } 7 | dependencies { 8 | classpath 'com.android.tools.build:gradle:1.3.0' 9 | 10 | // NOTE: Do not place your application dependencies here; they belong 11 | // in the individual module build.gradle files 12 | } 13 | } 14 | 15 | allprojects { 16 | repositories { 17 | jcenter() 18 | } 19 | } 20 | -------------------------------------------------------------------------------- /dndgridview/.gitignore: -------------------------------------------------------------------------------- 1 | /build 2 | -------------------------------------------------------------------------------- /dndgridview/build.gradle: -------------------------------------------------------------------------------- 1 | apply plugin: 'com.android.library' 2 | 3 | android { 4 | compileSdkVersion 22 5 | buildToolsVersion "22.0.1" 6 | 7 | defaultConfig { 8 | minSdkVersion 11 9 | targetSdkVersion 22 10 | versionCode 1 11 | versionName "1.0" 12 | } 13 | buildTypes { 14 | release { 15 | minifyEnabled false 16 | proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro' 17 | } 18 | } 19 | } 20 | 21 | dependencies { 22 | compile fileTree(dir: 'libs', include: ['*.jar']) 23 | compile 'com.android.support:appcompat-v7:22.2.1' 24 | } 25 | -------------------------------------------------------------------------------- /dndgridview/dndgridview.iml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 8 | 9 | 10 | 11 | 28 | 29 | 30 | 31 | 32 | 33 | 34 | 35 | 36 | 37 | 38 | 39 | 40 | 41 | 42 | 43 | 44 | 45 | 46 | 47 | 48 | 49 | 50 | 51 | 52 | 53 | 54 | 55 | 56 | 57 | 58 | 59 | 60 | 61 | 62 | 63 | 64 | 65 | 66 | 67 | 68 | 69 | 70 | 71 | 72 | 73 | 74 | 75 | 76 | 77 | 78 | 79 | 80 | 81 | 82 | 83 | 84 | 85 | 86 | 87 | 88 | 89 | 90 | 91 | 92 | 93 | 94 | 95 | 96 | -------------------------------------------------------------------------------- /dndgridview/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 /Developer/Android/sdk/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 | -------------------------------------------------------------------------------- /dndgridview/src/androidTest/java/sun/bob/dndgridview/ApplicationTest.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridview; 2 | 3 | import android.app.Application; 4 | import android.test.ApplicationTestCase; 5 | 6 | /** 7 | * Testing Fundamentals 8 | */ 9 | public class ApplicationTest extends ApplicationTestCase { 10 | public ApplicationTest() { 11 | super(Application.class); 12 | } 13 | } -------------------------------------------------------------------------------- /dndgridview/src/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | -------------------------------------------------------------------------------- /dndgridview/src/main/java/sun/bob/dndgridview/DNDAdapter.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridview; 2 | 3 | import android.content.ClipData; 4 | import android.content.Context; 5 | import android.content.Intent; 6 | import android.util.Log; 7 | import android.view.DragEvent; 8 | import android.view.View; 9 | import android.view.ViewGroup; 10 | import android.widget.ArrayAdapter; 11 | import android.widget.GridView; 12 | 13 | import java.util.ArrayList; 14 | import java.util.List; 15 | 16 | /** 17 | * Created by bob.sun on 15/8/19. 18 | */ 19 | public abstract class DNDAdapter extends ArrayAdapter { 20 | 21 | public DNDAdapter(Context context, int resource, int textViewResourceId) { 22 | super(context, resource, textViewResourceId); 23 | } 24 | 25 | public DNDAdapter(Context context, int resource, Object[] objects) { 26 | super(context, resource, objects); 27 | } 28 | 29 | public DNDAdapter(Context context, int resource, int textViewResourceId, Object[] objects) { 30 | super(context, resource, textViewResourceId, objects); 31 | } 32 | 33 | public DNDAdapter(Context context, int resource, List objects) { 34 | super(context, resource, objects); 35 | } 36 | 37 | public DNDAdapter(Context context, int resource, int textViewResourceId, List objects) { 38 | super(context, resource, textViewResourceId, objects); 39 | } 40 | 41 | private ArrayList data; 42 | private boolean isCustomArray = false; 43 | 44 | public DNDAdapter(Context context, int resource) { 45 | super(context, resource); 46 | } 47 | 48 | 49 | @Override 50 | public abstract View getView(int posistion, View convertView, ViewGroup parent); 51 | 52 | @Override 53 | public int getCount(){ 54 | return isCustomArray ? data.size() : super.getCount(); 55 | } 56 | 57 | public void setCustomArray(ArrayList array){ 58 | this.isCustomArray = true; 59 | this.data = array; 60 | } 61 | 62 | public void setUpDragNDrop(final int posistion, final View view){ 63 | 64 | if (view.getTag() == null){ 65 | view.setTag(new DNDViewHolder(posistion)); 66 | } else { 67 | ((DNDViewHolder) view.getTag()).posistion = posistion; 68 | } 69 | 70 | view.setOnLongClickListener(new View.OnLongClickListener() { 71 | @Override 72 | public boolean onLongClick(View v) { 73 | Intent data = new Intent(); 74 | data.putExtra("position", ((DNDViewHolder) view.getTag()).posistion); 75 | view.startDrag(ClipData.newIntent("data", data), new View.DragShadowBuilder(v), v, 0); 76 | return true; 77 | } 78 | }); 79 | 80 | view.setOnDragListener(new View.OnDragListener() { 81 | @Override 82 | public boolean onDrag(View v, DragEvent event) { 83 | switch (event.getAction()) { 84 | case DragEvent.ACTION_DRAG_STARTED: 85 | break; 86 | case DragEvent.ACTION_DRAG_ENDED: 87 | break; 88 | case DragEvent.ACTION_DRAG_LOCATION: 89 | break; 90 | case DragEvent.ACTION_DROP: 91 | //Delete dragged item 92 | int dragPosition = event.getClipData().getItemAt(0).getIntent().getIntExtra("position", -1); 93 | if (dragPosition < 0) { 94 | return false; 95 | } 96 | Object dragItem = isCustomArray ? data.get(dragPosition) : DNDAdapter.this.getItem(dragPosition); 97 | if (isCustomArray){ 98 | data.remove(dragPosition); 99 | data.add(((DNDViewHolder) v.getTag()).posistion, dragItem); 100 | } else { 101 | DNDAdapter.this.remove(dragPosition); 102 | //Insert dropped item 103 | DNDAdapter.this.insert(dragItem, ((DNDViewHolder) v.getTag()).posistion); 104 | } 105 | 106 | DNDAdapter.this.notifyDataSetChanged(); 107 | break; 108 | case DragEvent.ACTION_DRAG_ENTERED: 109 | GridView parent = (GridView) v.getParent(); 110 | int pos = ((DNDViewHolder) v.getTag()).posistion; 111 | if (pos > parent.getLastVisiblePosition() - parent.getNumColumns()){ 112 | parent.smoothScrollByOffset(1); 113 | } 114 | if (pos < parent.getFirstVisiblePosition() + parent.getNumColumns()){ 115 | parent.smoothScrollByOffset(-1); 116 | } 117 | break; 118 | default: 119 | return false; 120 | } 121 | return true; 122 | } 123 | }); 124 | 125 | } 126 | } -------------------------------------------------------------------------------- /dndgridview/src/main/java/sun/bob/dndgridview/DNDGridView.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridview; 2 | 3 | import android.content.Context; 4 | import android.util.AttributeSet; 5 | import android.widget.ArrayAdapter; 6 | import android.widget.GridView; 7 | import android.widget.ListAdapter; 8 | 9 | /** 10 | * Created by bob.sun on 15/8/19. 11 | */ 12 | public class DNDGridView extends GridView { 13 | public DNDGridView(Context context) { 14 | super(context); 15 | this.setNumColumns(3); 16 | } 17 | 18 | public DNDGridView(Context context, AttributeSet attrs) { 19 | super(context, attrs); 20 | this.setNumColumns(3); 21 | } 22 | 23 | /** 24 | * Set adapter of DNDGridView. 25 | * @param adapter Must be an instance of DNDAdapter or will throw. 26 | */ 27 | @Override 28 | public void setAdapter(ListAdapter adapter){ 29 | if ( !(adapter instanceof DNDAdapter) ){ 30 | throw new IllegalArgumentException("adapter must be an instance of DNDAdapter!"); 31 | } 32 | super.setAdapter(adapter); 33 | } 34 | } 35 | -------------------------------------------------------------------------------- /dndgridview/src/main/java/sun/bob/dndgridview/DNDViewHolder.java: -------------------------------------------------------------------------------- 1 | package sun.bob.dndgridview; 2 | 3 | import android.widget.ImageView; 4 | import android.widget.TextView; 5 | 6 | /** 7 | * Created by bob.sun on 15/8/22. 8 | */ 9 | public class DNDViewHolder { 10 | int posistion; 11 | public DNDViewHolder(int posistion){ 12 | this.posistion = posistion; 13 | } 14 | // Object data; 15 | // ImageView imageView; 16 | // TextView textView; 17 | } 18 | -------------------------------------------------------------------------------- /dndgridview/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | DNDGridView 3 | 4 | -------------------------------------------------------------------------------- /gradle.properties: -------------------------------------------------------------------------------- 1 | # Project-wide Gradle settings. 2 | 3 | # IDE (e.g. Android Studio) users: 4 | # Gradle settings configured through the IDE *will override* 5 | # any settings specified in this file. 6 | 7 | # For more details on how to configure your build environment visit 8 | # http://www.gradle.org/docs/current/userguide/build_environment.html 9 | 10 | # Specifies the JVM arguments used for the daemon process. 11 | # The setting is particularly useful for tweaking memory settings. 12 | # Default value: -Xmx10248m -XX:MaxPermSize=256m 13 | # org.gradle.jvmargs=-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError -Dfile.encoding=UTF-8 14 | 15 | # When configured, Gradle will run in incubating parallel mode. 16 | # This option should only be used with decoupled projects. More details, visit 17 | # http://www.gradle.org/docs/current/userguide/multi_project_builds.html#sec:decoupled_projects 18 | # org.gradle.parallel=true -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.jar: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Wed Aug 19 21:13:52 CST 2015 2 | distributionBase=GRADLE_USER_HOME 3 | distributionPath=wrapper/dists 4 | zipStoreBase=GRADLE_USER_HOME 5 | zipStorePath=wrapper/dists 6 | distributionUrl=https\://services.gradle.org/distributions/gradle-2.4-all.zip 7 | -------------------------------------------------------------------------------- /gradlew: -------------------------------------------------------------------------------- 1 | #!/usr/bin/env bash 2 | 3 | ############################################################################## 4 | ## 5 | ## Gradle start up script for UN*X 6 | ## 7 | ############################################################################## 8 | 9 | # Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 10 | DEFAULT_JVM_OPTS="" 11 | 12 | APP_NAME="Gradle" 13 | APP_BASE_NAME=`basename "$0"` 14 | 15 | # Use the maximum available, or set MAX_FD != -1 to use that value. 16 | MAX_FD="maximum" 17 | 18 | warn ( ) { 19 | echo "$*" 20 | } 21 | 22 | die ( ) { 23 | echo 24 | echo "$*" 25 | echo 26 | exit 1 27 | } 28 | 29 | # OS specific support (must be 'true' or 'false'). 30 | cygwin=false 31 | msys=false 32 | darwin=false 33 | case "`uname`" in 34 | CYGWIN* ) 35 | cygwin=true 36 | ;; 37 | Darwin* ) 38 | darwin=true 39 | ;; 40 | MINGW* ) 41 | msys=true 42 | ;; 43 | esac 44 | 45 | # For Cygwin, ensure paths are in UNIX format before anything is touched. 46 | if $cygwin ; then 47 | [ -n "$JAVA_HOME" ] && JAVA_HOME=`cygpath --unix "$JAVA_HOME"` 48 | fi 49 | 50 | # Attempt to set APP_HOME 51 | # Resolve links: $0 may be a link 52 | PRG="$0" 53 | # Need this for relative symlinks. 54 | while [ -h "$PRG" ] ; do 55 | ls=`ls -ld "$PRG"` 56 | link=`expr "$ls" : '.*-> \(.*\)$'` 57 | if expr "$link" : '/.*' > /dev/null; then 58 | PRG="$link" 59 | else 60 | PRG=`dirname "$PRG"`"/$link" 61 | fi 62 | done 63 | SAVED="`pwd`" 64 | cd "`dirname \"$PRG\"`/" >&- 65 | APP_HOME="`pwd -P`" 66 | cd "$SAVED" >&- 67 | 68 | CLASSPATH=$APP_HOME/gradle/wrapper/gradle-wrapper.jar 69 | 70 | # Determine the Java command to use to start the JVM. 71 | if [ -n "$JAVA_HOME" ] ; then 72 | if [ -x "$JAVA_HOME/jre/sh/java" ] ; then 73 | # IBM's JDK on AIX uses strange locations for the executables 74 | JAVACMD="$JAVA_HOME/jre/sh/java" 75 | else 76 | JAVACMD="$JAVA_HOME/bin/java" 77 | fi 78 | if [ ! -x "$JAVACMD" ] ; then 79 | die "ERROR: JAVA_HOME is set to an invalid directory: $JAVA_HOME 80 | 81 | Please set the JAVA_HOME variable in your environment to match the 82 | location of your Java installation." 83 | fi 84 | else 85 | JAVACMD="java" 86 | which java >/dev/null 2>&1 || die "ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 87 | 88 | Please set the JAVA_HOME variable in your environment to match the 89 | location of your Java installation." 90 | fi 91 | 92 | # Increase the maximum file descriptors if we can. 93 | if [ "$cygwin" = "false" -a "$darwin" = "false" ] ; then 94 | MAX_FD_LIMIT=`ulimit -H -n` 95 | if [ $? -eq 0 ] ; then 96 | if [ "$MAX_FD" = "maximum" -o "$MAX_FD" = "max" ] ; then 97 | MAX_FD="$MAX_FD_LIMIT" 98 | fi 99 | ulimit -n $MAX_FD 100 | if [ $? -ne 0 ] ; then 101 | warn "Could not set maximum file descriptor limit: $MAX_FD" 102 | fi 103 | else 104 | warn "Could not query maximum file descriptor limit: $MAX_FD_LIMIT" 105 | fi 106 | fi 107 | 108 | # For Darwin, add options to specify how the application appears in the dock 109 | if $darwin; then 110 | GRADLE_OPTS="$GRADLE_OPTS \"-Xdock:name=$APP_NAME\" \"-Xdock:icon=$APP_HOME/media/gradle.icns\"" 111 | fi 112 | 113 | # For Cygwin, switch paths to Windows format before running java 114 | if $cygwin ; then 115 | APP_HOME=`cygpath --path --mixed "$APP_HOME"` 116 | CLASSPATH=`cygpath --path --mixed "$CLASSPATH"` 117 | 118 | # We build the pattern for arguments to be converted via cygpath 119 | ROOTDIRSRAW=`find -L / -maxdepth 1 -mindepth 1 -type d 2>/dev/null` 120 | SEP="" 121 | for dir in $ROOTDIRSRAW ; do 122 | ROOTDIRS="$ROOTDIRS$SEP$dir" 123 | SEP="|" 124 | done 125 | OURCYGPATTERN="(^($ROOTDIRS))" 126 | # Add a user-defined pattern to the cygpath arguments 127 | if [ "$GRADLE_CYGPATTERN" != "" ] ; then 128 | OURCYGPATTERN="$OURCYGPATTERN|($GRADLE_CYGPATTERN)" 129 | fi 130 | # Now convert the arguments - kludge to limit ourselves to /bin/sh 131 | i=0 132 | for arg in "$@" ; do 133 | CHECK=`echo "$arg"|egrep -c "$OURCYGPATTERN" -` 134 | CHECK2=`echo "$arg"|egrep -c "^-"` ### Determine if an option 135 | 136 | if [ $CHECK -ne 0 ] && [ $CHECK2 -eq 0 ] ; then ### Added a condition 137 | eval `echo args$i`=`cygpath --path --ignore --mixed "$arg"` 138 | else 139 | eval `echo args$i`="\"$arg\"" 140 | fi 141 | i=$((i+1)) 142 | done 143 | case $i in 144 | (0) set -- ;; 145 | (1) set -- "$args0" ;; 146 | (2) set -- "$args0" "$args1" ;; 147 | (3) set -- "$args0" "$args1" "$args2" ;; 148 | (4) set -- "$args0" "$args1" "$args2" "$args3" ;; 149 | (5) set -- "$args0" "$args1" "$args2" "$args3" "$args4" ;; 150 | (6) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" ;; 151 | (7) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" ;; 152 | (8) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" ;; 153 | (9) set -- "$args0" "$args1" "$args2" "$args3" "$args4" "$args5" "$args6" "$args7" "$args8" ;; 154 | esac 155 | fi 156 | 157 | # Split up the JVM_OPTS And GRADLE_OPTS values into an array, following the shell quoting and substitution rules 158 | function splitJvmOpts() { 159 | JVM_OPTS=("$@") 160 | } 161 | eval splitJvmOpts $DEFAULT_JVM_OPTS $JAVA_OPTS $GRADLE_OPTS 162 | JVM_OPTS[${#JVM_OPTS[*]}]="-Dorg.gradle.appname=$APP_BASE_NAME" 163 | 164 | exec "$JAVACMD" "${JVM_OPTS[@]}" -classpath "$CLASSPATH" org.gradle.wrapper.GradleWrapperMain "$@" 165 | -------------------------------------------------------------------------------- /gradlew.bat: -------------------------------------------------------------------------------- 1 | @if "%DEBUG%" == "" @echo off 2 | @rem ########################################################################## 3 | @rem 4 | @rem Gradle startup script for Windows 5 | @rem 6 | @rem ########################################################################## 7 | 8 | @rem Set local scope for the variables with windows NT shell 9 | if "%OS%"=="Windows_NT" setlocal 10 | 11 | @rem Add default JVM options here. You can also use JAVA_OPTS and GRADLE_OPTS to pass JVM options to this script. 12 | set DEFAULT_JVM_OPTS= 13 | 14 | set DIRNAME=%~dp0 15 | if "%DIRNAME%" == "" set DIRNAME=. 16 | set APP_BASE_NAME=%~n0 17 | set APP_HOME=%DIRNAME% 18 | 19 | @rem Find java.exe 20 | if defined JAVA_HOME goto findJavaFromJavaHome 21 | 22 | set JAVA_EXE=java.exe 23 | %JAVA_EXE% -version >NUL 2>&1 24 | if "%ERRORLEVEL%" == "0" goto init 25 | 26 | echo. 27 | echo ERROR: JAVA_HOME is not set and no 'java' command could be found in your PATH. 28 | echo. 29 | echo Please set the JAVA_HOME variable in your environment to match the 30 | echo location of your Java installation. 31 | 32 | goto fail 33 | 34 | :findJavaFromJavaHome 35 | set JAVA_HOME=%JAVA_HOME:"=% 36 | set JAVA_EXE=%JAVA_HOME%/bin/java.exe 37 | 38 | if exist "%JAVA_EXE%" goto init 39 | 40 | echo. 41 | echo ERROR: JAVA_HOME is set to an invalid directory: %JAVA_HOME% 42 | echo. 43 | echo Please set the JAVA_HOME variable in your environment to match the 44 | echo location of your Java installation. 45 | 46 | goto fail 47 | 48 | :init 49 | @rem Get command-line arguments, handling Windowz variants 50 | 51 | if not "%OS%" == "Windows_NT" goto win9xME_args 52 | if "%@eval[2+2]" == "4" goto 4NT_args 53 | 54 | :win9xME_args 55 | @rem Slurp the command line arguments. 56 | set CMD_LINE_ARGS= 57 | set _SKIP=2 58 | 59 | :win9xME_args_slurp 60 | if "x%~1" == "x" goto execute 61 | 62 | set CMD_LINE_ARGS=%* 63 | goto execute 64 | 65 | :4NT_args 66 | @rem Get arguments from the 4NT Shell from JP Software 67 | set CMD_LINE_ARGS=%$ 68 | 69 | :execute 70 | @rem Setup the command line 71 | 72 | set CLASSPATH=%APP_HOME%\gradle\wrapper\gradle-wrapper.jar 73 | 74 | @rem Execute Gradle 75 | "%JAVA_EXE%" %DEFAULT_JVM_OPTS% %JAVA_OPTS% %GRADLE_OPTS% "-Dorg.gradle.appname=%APP_BASE_NAME%" -classpath "%CLASSPATH%" org.gradle.wrapper.GradleWrapperMain %CMD_LINE_ARGS% 76 | 77 | :end 78 | @rem End local scope for the variables with windows NT shell 79 | if "%ERRORLEVEL%"=="0" goto mainEnd 80 | 81 | :fail 82 | rem Set variable GRADLE_EXIT_CONSOLE if you need the _script_ return code instead of 83 | rem the _cmd.exe /c_ return code! 84 | if not "" == "%GRADLE_EXIT_CONSOLE%" exit 1 85 | exit /b 1 86 | 87 | :mainEnd 88 | if "%OS%"=="Windows_NT" endlocal 89 | 90 | :omega 91 | -------------------------------------------------------------------------------- /screenshot/shot.gif: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/SpongeBobSun/DNDGridView/bb5fac76b79488061aeb51a6479d3d6ce6e377f7/screenshot/shot.gif -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app', ':dndgridview' 2 | --------------------------------------------------------------------------------