├── .gitignore ├── LICENSE ├── README.md ├── app ├── build.gradle ├── proguard-rules.pro └── src │ └── main │ ├── AndroidManifest.xml │ ├── java │ └── com │ │ └── sqisland │ │ └── android │ │ └── recyclerview │ │ ├── AddRemoveNumberedAdapter.java │ │ ├── AutofitRecyclerView.java │ │ ├── GridLayoutActivity.java │ │ ├── GridLayoutAddRemoveActivity.java │ │ ├── GridLayoutAutoFitActivity.java │ │ ├── GridLayoutAutoFitHeaderActivity.java │ │ ├── GridLayoutHeaderActivity.java │ │ ├── GridLayoutVariableSpanSizeActivity.java │ │ ├── HeaderNumberedAdapter.java │ │ ├── LinearLayoutActivity.java │ │ ├── MainActivity.java │ │ ├── MarginDecoration.java │ │ ├── NumberedAdapter.java │ │ └── TextViewHolder.java │ └── res │ ├── drawable-hdpi │ └── ic_launcher.png │ ├── drawable-mdpi │ └── ic_launcher.png │ ├── drawable-xhdpi │ └── ic_launcher.png │ ├── drawable │ ├── green_background.xml │ └── light_blue_background.xml │ ├── layout │ ├── activity_auto_fit_recycler_view.xml │ ├── activity_recycler_view.xml │ ├── auto_fit_header.xml │ ├── header.xml │ ├── item.xml │ └── item_add.xml │ ├── values-v11 │ └── styles.xml │ ├── values-v14 │ └── styles.xml │ ├── values-v21 │ └── styles.xml │ ├── values-w820dp │ └── dimens.xml │ └── values │ ├── colors.xml │ ├── dimens.xml │ ├── strings.xml │ └── styles.xml ├── build.gradle ├── gradle.properties ├── gradle └── wrapper │ ├── gradle-wrapper.jar │ └── gradle-wrapper.properties ├── gradlew ├── gradlew.bat └── settings.gradle /.gitignore: -------------------------------------------------------------------------------- 1 | # General 2 | .DS_Store 3 | *~ 4 | 5 | # Android Studio 6 | .idea/ 7 | .gradle 8 | local.properties 9 | /*/out 10 | build 11 | *.iml 12 | *.iws 13 | *.ipr 14 | *.swp 15 | 16 | # built application files 17 | *.apk 18 | *.ap_ 19 | 20 | # files for the dex VM 21 | *.dex 22 | 23 | # Java class files 24 | *.class 25 | 26 | # generated files 27 | bin/ 28 | gen/ 29 | 30 | # Eclipse project files 31 | .classpath 32 | .project 33 | 34 | # Proguard folder generated by Eclipse 35 | proguard/ 36 | -------------------------------------------------------------------------------- /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 2014 Chiu-Ki Chan 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 | Android RecyclerView 2 | -------------------- 3 | 4 | Sample code for [RecyclerView][1]. 5 | 6 | Blog post: 7 | * [Grid with header][2] 8 | * [Autofit grid][3] 9 | 10 | [1]: https://developer.android.com/reference/android/support/v7/widget/RecyclerView.html 11 | [2]: http://blog.sqisland.com/2014/12/recyclerview-grid-with-header.html 12 | [3]: http://blog.sqisland.com/2014/12/recyclerview-autofit-grid.html 13 | -------------------------------------------------------------------------------- /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 "com.sqisland.android.recyclerview" 9 | minSdkVersion 7 10 | targetSdkVersion 22 11 | versionCode 1 12 | versionName "1.0.0" 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:recyclerview-v7:21.0.3' 25 | } -------------------------------------------------------------------------------- /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 /home/chiuki/dev/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/main/AndroidManifest.xml: -------------------------------------------------------------------------------- 1 | 3 | 4 | 9 | 12 | 13 | 14 | 15 | 16 | 17 | 21 | 25 | 29 | 33 | 37 | 41 | 45 | 46 | 47 | 48 | -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/AddRemoveNumberedAdapter.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.support.v7.widget.RecyclerView; 4 | import android.view.LayoutInflater; 5 | import android.view.View; 6 | import android.view.ViewGroup; 7 | 8 | import java.util.ArrayList; 9 | import java.util.List; 10 | 11 | public class AddRemoveNumberedAdapter extends RecyclerView.Adapter { 12 | private static final int ITEM_VIEW_TYPE_ITEM = 0; 13 | private static final int ITEM_VIEW_TYPE_ADD = 1; 14 | 15 | private List labels; 16 | 17 | public AddRemoveNumberedAdapter(int count) { 18 | labels = new ArrayList(count); 19 | for (int i = 0; i < count; ++i) { 20 | labels.add(String.valueOf(i)); 21 | } 22 | } 23 | 24 | @Override 25 | public TextViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 26 | View view = LayoutInflater.from(parent.getContext()).inflate( 27 | viewType == ITEM_VIEW_TYPE_ADD ? R.layout.item_add : R.layout.item, parent, false); 28 | return new TextViewHolder(view); 29 | } 30 | 31 | @Override 32 | public void onBindViewHolder(final TextViewHolder holder, final int position) { 33 | if (position == labels.size()) { 34 | holder.textView.setOnClickListener(new View.OnClickListener() { 35 | @Override 36 | public void onClick(View v) { 37 | addItem(); 38 | } 39 | }); 40 | return; 41 | } 42 | 43 | final String label = labels.get(position); 44 | holder.textView.setText(label); 45 | holder.textView.setOnClickListener(new View.OnClickListener() { 46 | @Override 47 | public void onClick(View v) { 48 | removeItem(holder.getPosition()); 49 | } 50 | }); 51 | } 52 | 53 | private void addItem() { 54 | if (labels.size() >=1){ 55 | int lastItem = Integer.parseInt(labels.get(labels.size() - 1)); 56 | labels.add(String.valueOf(lastItem + 1)); 57 | notifyItemInserted(labels.size() - 1); 58 | } else { 59 | labels.add(new String("0")); 60 | notifyItemInserted(0); 61 | } 62 | 63 | } 64 | 65 | private void removeItem(int position) { 66 | labels.remove(position); 67 | notifyItemRemoved(position); 68 | } 69 | 70 | @Override 71 | public int getItemViewType(int position) { 72 | return position == labels.size() ? ITEM_VIEW_TYPE_ADD : ITEM_VIEW_TYPE_ITEM; 73 | } 74 | 75 | @Override 76 | public int getItemCount() { 77 | return labels.size() + 1; 78 | } 79 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/AutofitRecyclerView.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.content.Context; 4 | import android.content.res.TypedArray; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | import android.util.AttributeSet; 8 | 9 | public class AutofitRecyclerView extends RecyclerView { 10 | private GridLayoutManager manager; 11 | private int columnWidth = -1; 12 | 13 | public AutofitRecyclerView(Context context) { 14 | super(context); 15 | init(context, null); 16 | } 17 | 18 | public AutofitRecyclerView(Context context, AttributeSet attrs) { 19 | super(context, attrs); 20 | init(context, attrs); 21 | } 22 | 23 | public AutofitRecyclerView(Context context, AttributeSet attrs, int defStyle) { 24 | super(context, attrs, defStyle); 25 | init(context, attrs); 26 | } 27 | 28 | private void init(Context context, AttributeSet attrs) { 29 | if (attrs != null) { 30 | int[] attrsArray = { 31 | android.R.attr.columnWidth 32 | }; 33 | TypedArray array = context.obtainStyledAttributes(attrs, attrsArray); 34 | columnWidth = array.getDimensionPixelSize(0, -1); 35 | array.recycle(); 36 | } 37 | 38 | manager = new GridLayoutManager(getContext(), 1); 39 | setLayoutManager(manager); 40 | } 41 | 42 | @Override 43 | protected void onMeasure(int widthSpec, int heightSpec) { 44 | super.onMeasure(widthSpec, heightSpec); 45 | if (columnWidth > 0) { 46 | int spanCount = Math.max(1, getMeasuredWidth() / columnWidth); 47 | manager.setSpanCount(spanCount); 48 | } 49 | } 50 | } 51 | -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | 8 | public class GridLayoutActivity extends Activity { 9 | @Override 10 | protected void onCreate(Bundle savedInstanceState) { 11 | super.onCreate(savedInstanceState); 12 | setContentView(R.layout.activity_recycler_view); 13 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 14 | recyclerView.addItemDecoration(new MarginDecoration(this)); 15 | recyclerView.setHasFixedSize(true); 16 | recyclerView.setLayoutManager(new GridLayoutManager(this, 2)); 17 | recyclerView.setAdapter(new NumberedAdapter(30)); 18 | } 19 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutAddRemoveActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | 8 | public class GridLayoutAddRemoveActivity extends Activity { 9 | @Override 10 | protected void onCreate(Bundle savedInstanceState) { 11 | super.onCreate(savedInstanceState); 12 | setContentView(R.layout.activity_recycler_view); 13 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 14 | recyclerView.addItemDecoration(new MarginDecoration(this)); 15 | recyclerView.setHasFixedSize(true); 16 | recyclerView.setLayoutManager(new GridLayoutManager(this, 2)); 17 | recyclerView.setAdapter(new AddRemoveNumberedAdapter(4)); 18 | } 19 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutAutoFitActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.RecyclerView; 6 | 7 | public class GridLayoutAutoFitActivity extends Activity { 8 | @Override 9 | protected void onCreate(Bundle savedInstanceState) { 10 | super.onCreate(savedInstanceState); 11 | setContentView(R.layout.activity_auto_fit_recycler_view); 12 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 13 | recyclerView.addItemDecoration(new MarginDecoration(this)); 14 | recyclerView.setHasFixedSize(true); 15 | recyclerView.setAdapter(new NumberedAdapter(30)); 16 | } 17 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutAutoFitHeaderActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | import android.view.LayoutInflater; 8 | import android.view.View; 9 | import android.widget.Toast; 10 | 11 | public class GridLayoutAutoFitHeaderActivity extends Activity { 12 | @Override 13 | protected void onCreate(Bundle savedInstanceState) { 14 | super.onCreate(savedInstanceState); 15 | setContentView(R.layout.activity_auto_fit_recycler_view); 16 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 17 | recyclerView.addItemDecoration(new MarginDecoration(this)); 18 | recyclerView.setHasFixedSize(true); 19 | 20 | View header = LayoutInflater.from(this).inflate(R.layout.auto_fit_header, recyclerView, false); 21 | header.setOnClickListener(new View.OnClickListener() { 22 | @Override 23 | public void onClick(View v) { 24 | Toast.makeText(v.getContext(), R.string.grid_layout_auto_fit_header, Toast.LENGTH_SHORT) 25 | .show(); 26 | } 27 | }); 28 | final HeaderNumberedAdapter adapter = new HeaderNumberedAdapter(header, 30); 29 | 30 | final GridLayoutManager manager = (GridLayoutManager) recyclerView.getLayoutManager(); 31 | manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { 32 | @Override 33 | public int getSpanSize(int position) { 34 | return adapter.isHeader(position) ? manager.getSpanCount() : 1; 35 | } 36 | }); 37 | 38 | recyclerView.setAdapter(adapter); 39 | } 40 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutHeaderActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | import android.view.LayoutInflater; 8 | import android.view.View; 9 | import android.widget.Toast; 10 | 11 | public class GridLayoutHeaderActivity extends Activity { 12 | @Override 13 | protected void onCreate(Bundle savedInstanceState) { 14 | super.onCreate(savedInstanceState); 15 | setContentView(R.layout.activity_recycler_view); 16 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 17 | recyclerView.addItemDecoration(new MarginDecoration(this)); 18 | recyclerView.setHasFixedSize(true); 19 | 20 | final GridLayoutManager manager = new GridLayoutManager(this, 2); 21 | recyclerView.setLayoutManager(manager); 22 | 23 | View header = LayoutInflater.from(this).inflate(R.layout.header, recyclerView, false); 24 | header.setOnClickListener(new View.OnClickListener() { 25 | @Override 26 | public void onClick(View v) { 27 | Toast.makeText(v.getContext(), R.string.grid_layout_header, Toast.LENGTH_SHORT).show(); 28 | } 29 | }); 30 | final HeaderNumberedAdapter adapter = new HeaderNumberedAdapter(header, 30); 31 | recyclerView.setAdapter(adapter); 32 | 33 | manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { 34 | @Override 35 | public int getSpanSize(int position) { 36 | return adapter.isHeader(position) ? manager.getSpanCount() : 1; 37 | } 38 | }); 39 | } 40 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/GridLayoutVariableSpanSizeActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.GridLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | 8 | public class GridLayoutVariableSpanSizeActivity extends Activity { 9 | @Override 10 | protected void onCreate(Bundle savedInstanceState) { 11 | super.onCreate(savedInstanceState); 12 | setContentView(R.layout.activity_recycler_view); 13 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 14 | recyclerView.addItemDecoration(new MarginDecoration(this)); 15 | recyclerView.setHasFixedSize(true); 16 | 17 | GridLayoutManager manager = new GridLayoutManager(this, 3); 18 | manager.setSpanSizeLookup(new GridLayoutManager.SpanSizeLookup() { 19 | @Override 20 | public int getSpanSize(int position) { 21 | return (3 - position % 3); 22 | } 23 | }); 24 | recyclerView.setLayoutManager(manager); 25 | 26 | recyclerView.setAdapter(new NumberedAdapter(30)); 27 | } 28 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/HeaderNumberedAdapter.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.support.v7.widget.RecyclerView; 4 | import android.view.LayoutInflater; 5 | import android.view.View; 6 | import android.view.ViewGroup; 7 | import android.widget.Toast; 8 | 9 | import java.util.ArrayList; 10 | import java.util.List; 11 | 12 | public class HeaderNumberedAdapter extends RecyclerView.Adapter { 13 | private static final int ITEM_VIEW_TYPE_HEADER = 0; 14 | private static final int ITEM_VIEW_TYPE_ITEM = 1; 15 | 16 | private final View header; 17 | private final List labels; 18 | 19 | public HeaderNumberedAdapter(View header, int count) { 20 | if (header == null) { 21 | throw new IllegalArgumentException("header may not be null"); 22 | } 23 | this.header = header; 24 | this.labels = new ArrayList(count); 25 | for (int i = 0; i < count; ++i) { 26 | labels.add(String.valueOf(i)); 27 | } 28 | } 29 | 30 | public boolean isHeader(int position) { 31 | return position == 0; 32 | } 33 | 34 | @Override 35 | public TextViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 36 | if (viewType == ITEM_VIEW_TYPE_HEADER) { 37 | return new TextViewHolder(header); 38 | } 39 | View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false); 40 | return new TextViewHolder(view); 41 | } 42 | 43 | @Override 44 | public void onBindViewHolder(final TextViewHolder holder, final int position) { 45 | if (isHeader(position)) { 46 | return; 47 | } 48 | final String label = labels.get(position - 1); // Subtract 1 for header 49 | holder.textView.setText(label); 50 | holder.textView.setOnClickListener(new View.OnClickListener() { 51 | @Override 52 | public void onClick(View v) { 53 | Toast.makeText( 54 | holder.textView.getContext(), label, Toast.LENGTH_SHORT).show(); 55 | } 56 | }); 57 | } 58 | 59 | @Override 60 | public int getItemViewType(int position) { 61 | return isHeader(position) ? ITEM_VIEW_TYPE_HEADER : ITEM_VIEW_TYPE_ITEM; 62 | } 63 | 64 | @Override 65 | public int getItemCount() { 66 | return labels.size() + 1; 67 | } 68 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/LinearLayoutActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.os.Bundle; 5 | import android.support.v7.widget.LinearLayoutManager; 6 | import android.support.v7.widget.RecyclerView; 7 | 8 | public class LinearLayoutActivity extends Activity { 9 | @Override 10 | protected void onCreate(Bundle savedInstanceState) { 11 | super.onCreate(savedInstanceState); 12 | setContentView(R.layout.activity_recycler_view); 13 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 14 | recyclerView.addItemDecoration(new MarginDecoration(this)); 15 | recyclerView.setHasFixedSize(true); 16 | recyclerView.setLayoutManager(new LinearLayoutManager(this)); 17 | recyclerView.setAdapter(new NumberedAdapter(30)); 18 | } 19 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/MainActivity.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.app.Activity; 4 | import android.content.Context; 5 | import android.content.Intent; 6 | import android.os.Bundle; 7 | import android.support.v7.widget.LinearLayoutManager; 8 | import android.support.v7.widget.RecyclerView; 9 | import android.view.LayoutInflater; 10 | import android.view.View; 11 | import android.view.ViewGroup; 12 | 13 | public class MainActivity extends Activity { 14 | @Override 15 | protected void onCreate(Bundle savedInstanceState) { 16 | super.onCreate(savedInstanceState); 17 | setContentView(R.layout.activity_recycler_view); 18 | 19 | Demo[] demos = { 20 | new Demo(this, LinearLayoutActivity.class, R.string.linear_layout), 21 | new Demo(this, GridLayoutActivity.class, R.string.grid_layout), 22 | new Demo(this, 23 | GridLayoutVariableSpanSizeActivity.class, R.string.grid_layout_variable_span_size), 24 | new Demo(this, GridLayoutHeaderActivity.class, R.string.grid_layout_header), 25 | new Demo(this, GridLayoutAutoFitActivity.class, R.string.grid_layout_auto_fit), 26 | new Demo(this, GridLayoutAutoFitHeaderActivity.class, R.string.grid_layout_auto_fit_header), 27 | new Demo(this, GridLayoutAddRemoveActivity.class, R.string.grid_layout_add_remove) 28 | }; 29 | 30 | RecyclerView recyclerView = (RecyclerView) findViewById(R.id.recycler_view); 31 | recyclerView.addItemDecoration(new MarginDecoration(this)); 32 | recyclerView.setHasFixedSize(true); 33 | recyclerView.setAdapter(new DemoAdapter(demos)); 34 | recyclerView.setLayoutManager(new LinearLayoutManager(this)); 35 | } 36 | 37 | private static class DemoAdapter extends RecyclerView.Adapter { 38 | private final Demo[] demos; 39 | 40 | public DemoAdapter(Demo[] demos) { 41 | this.demos = demos; 42 | } 43 | 44 | @Override 45 | public TextViewHolder onCreateViewHolder(ViewGroup parent, int position) { 46 | View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false); 47 | return new TextViewHolder(view); 48 | } 49 | 50 | @Override 51 | public void onBindViewHolder(final TextViewHolder holder, final int position) { 52 | final Demo demo = demos[position]; 53 | holder.textView.setText(demo.title); 54 | holder.textView.setOnClickListener(new View.OnClickListener() { 55 | @Override 56 | public void onClick(View v) { 57 | Context context = holder.textView.getContext(); 58 | context.startActivity(new Intent(context, demo.activityClass)); 59 | } 60 | }); 61 | } 62 | 63 | @Override 64 | public int getItemCount() { 65 | return demos.length; 66 | } 67 | } 68 | 69 | public static class Demo { 70 | public final Class activityClass; 71 | public final String title; 72 | 73 | public Demo(Context context, Class activityClass, int titleId) { 74 | this.activityClass = activityClass; 75 | this.title = context.getString(titleId); 76 | } 77 | } 78 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/MarginDecoration.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.content.Context; 4 | import android.graphics.Rect; 5 | import android.support.v7.widget.RecyclerView; 6 | import android.view.View; 7 | 8 | public class MarginDecoration extends RecyclerView.ItemDecoration { 9 | private int margin; 10 | 11 | public MarginDecoration(Context context) { 12 | margin = context.getResources().getDimensionPixelSize(R.dimen.item_margin); 13 | } 14 | 15 | @Override 16 | public void getItemOffsets( 17 | Rect outRect, View view, RecyclerView parent, RecyclerView.State state) { 18 | outRect.set(margin, margin, margin, margin); 19 | } 20 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/NumberedAdapter.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.support.v7.widget.RecyclerView; 4 | import android.view.LayoutInflater; 5 | import android.view.View; 6 | import android.view.ViewGroup; 7 | import android.widget.Toast; 8 | 9 | import java.util.ArrayList; 10 | import java.util.List; 11 | 12 | public class NumberedAdapter extends RecyclerView.Adapter { 13 | private List labels; 14 | 15 | public NumberedAdapter(int count) { 16 | labels = new ArrayList(count); 17 | for (int i = 0; i < count; ++i) { 18 | labels.add(String.valueOf(i)); 19 | } 20 | } 21 | 22 | @Override 23 | public TextViewHolder onCreateViewHolder(ViewGroup parent, int viewType) { 24 | View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.item, parent, false); 25 | return new TextViewHolder(view); 26 | } 27 | 28 | @Override 29 | public void onBindViewHolder(final TextViewHolder holder, final int position) { 30 | final String label = labels.get(position); 31 | holder.textView.setText(label); 32 | holder.textView.setOnClickListener(new View.OnClickListener() { 33 | @Override 34 | public void onClick(View v) { 35 | Toast.makeText( 36 | holder.textView.getContext(), label, Toast.LENGTH_SHORT).show(); 37 | } 38 | }); 39 | } 40 | 41 | @Override 42 | public int getItemCount() { 43 | return labels.size(); 44 | } 45 | } -------------------------------------------------------------------------------- /app/src/main/java/com/sqisland/android/recyclerview/TextViewHolder.java: -------------------------------------------------------------------------------- 1 | package com.sqisland.android.recyclerview; 2 | 3 | import android.support.v7.widget.RecyclerView; 4 | import android.view.View; 5 | import android.widget.TextView; 6 | 7 | public class TextViewHolder extends RecyclerView.ViewHolder { 8 | public TextView textView; 9 | public TextViewHolder(View itemView) { 10 | super(itemView); 11 | textView = (TextView) itemView.findViewById(R.id.text); 12 | } 13 | } -------------------------------------------------------------------------------- /app/src/main/res/drawable-hdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chiuki/android-recyclerview/f272c042ddfa60537245822b45542974358df4ac/app/src/main/res/drawable-hdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/drawable-mdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chiuki/android-recyclerview/f272c042ddfa60537245822b45542974358df4ac/app/src/main/res/drawable-mdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/drawable-xhdpi/ic_launcher.png: -------------------------------------------------------------------------------- https://raw.githubusercontent.com/chiuki/android-recyclerview/f272c042ddfa60537245822b45542974358df4ac/app/src/main/res/drawable-xhdpi/ic_launcher.png -------------------------------------------------------------------------------- /app/src/main/res/drawable/green_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /app/src/main/res/drawable/light_blue_background.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 | 13 | 14 | 15 | 16 | 17 | 18 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_auto_fit_recycler_view.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/layout/activity_recycler_view.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/layout/auto_fit_header.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/layout/header.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/layout/item.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/layout/item_add.xml: -------------------------------------------------------------------------------- 1 | -------------------------------------------------------------------------------- /app/src/main/res/values-v11/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | -------------------------------------------------------------------------------- /app/src/main/res/values-v14/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | -------------------------------------------------------------------------------- /app/src/main/res/values-v21/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 10 | -------------------------------------------------------------------------------- /app/src/main/res/values-w820dp/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 5 | 64dp 6 | 7 | -------------------------------------------------------------------------------- /app/src/main/res/values/colors.xml: -------------------------------------------------------------------------------- 1 | 2 | #B3E5FC 3 | #4FC3F7 4 | #03A9F4 5 | #01579B 6 | 7 | #C8E6C9 8 | #81C784 9 | #4CAF50 10 | #1B5E20 11 | -------------------------------------------------------------------------------- /app/src/main/res/values/dimens.xml: -------------------------------------------------------------------------------- 1 | 2 | 3 | 16dp 4 | 16dp 5 | 6 | 8dp 7 | 8dp 8 | 9 | 80dp 10 | 11 | -------------------------------------------------------------------------------- /app/src/main/res/values/strings.xml: -------------------------------------------------------------------------------- 1 | 2 | Recycler View 3 | 4 | Linear layout 5 | 6 | Grid layout 7 | 8 | Grid layout with variable span size 9 | 10 | Grid layout with header 11 | 12 | Grid layout with header, spanning 2 columns 13 | 14 | 15 | Grid layout, auto fit 16 | 17 | Grid layout, auto fit, with header 18 | 19 | Grid layout with header, spanning all the columns 20 | 21 | 22 | Grid layout, add and remove 23 | Add item 24 | -------------------------------------------------------------------------------- /app/src/main/res/values/styles.xml: -------------------------------------------------------------------------------- 1 | 2 | 4 | 6 | -------------------------------------------------------------------------------- /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:1.1.0' 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 | -------------------------------------------------------------------------------- /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/chiuki/android-recyclerview/f272c042ddfa60537245822b45542974358df4ac/gradle/wrapper/gradle-wrapper.jar -------------------------------------------------------------------------------- /gradle/wrapper/gradle-wrapper.properties: -------------------------------------------------------------------------------- 1 | #Thu Dec 04 16:11:12 MST 2014 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-2.2.1-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 | -------------------------------------------------------------------------------- /settings.gradle: -------------------------------------------------------------------------------- 1 | include ':app' 2 | --------------------------------------------------------------------------------