1.添加.jar包

File -> Project-Structure -> 左下角 “app” -> Dependencies -> 右上角“+” -> File dependency -> 选择“com.android.support:recyclerview-v7:23.1.0”

然后在“build-gradle”里面看到“compile ’com.android.support:recyclerview-v7:23.1.0‘”，如果不行，直接复制这句话到这里

MainActivity.java

  1. public class MainActivity extends AppCompatActivity {
  2.     private RecyclerView mRecyclerView;
  3.     private List<String> mData;
  4.     private MyAdapter mAdapter;
  5.  
  6.     @Override
  7.     protected void onCreate(Bundle savedInstanceState) {
  8.         super.onCreate(savedInstanceState);
  9.         setContentView(R.layout.activity_main);
  10.  
  11.         initData();
  12.         initView();
  13.  
  14.         mAdapter = new MyAdapter(this,mData);
  15.         mRecyclerView.setAdapter(mAdapter);
  16.  
  17.         //AS自带的动画效果
  18.         mRecyclerView.setItemAnimator(new DefaultItemAnimator());
  19.  
  20.         //设置RecyclerView的布局管理
  21.         LinearLayoutManager manager = new LinearLayoutManager(this,LinearLayoutManager.VERTICAL,false);
  22.         mRecyclerView.setLayoutManager(manager);
  23.  
  24.         //设置RecyclerView的Item间分割线
  25.         //直接在item.xml文件中设置android:layout_margin="6dp"取代这句话
  26.         mRecyclerView.addItemDecoration(new DividerItemDecoration(this,DividerItemDecoration.VERTICAL_LIST));
  27.  
  28.         mAdapter.onViewItemClickListener(new MyAdapter.onViewItemClick() {
  29.             @Override
  30.             public void onItemClick(View view, int position) {
  31.                 Toast.makeText(MainActivity.this,"Click : "+position,Toast.LENGTH_SHORT).show();
  32.             }
  33.  
  34.             @Override
  35.             public void onItemLongClick(View view, int position) {
  36.                 Toast.makeText(MainActivity.this,"Long Click : "+position,Toast.LENGTH_SHORT).show();
  37.                 mAdapter.itemRemove(position);
  38.             }
  39.         });
  40.     }
  41.  
  42.     private void initData(){
  43.  
  44.         mData = new ArrayList<String>();
  45.         for (int i = 'A';i <= 'z';i++) {
  46.             mData.add(" "+(char)i);
  47.         }
  48.     }
  49.  
  50.     private void initView() {
  51.         mRecyclerView = (RecyclerView) findViewById(R.id.rv_recycler);
  52.     }
  53.  
  54.     @Override
  55.     public boolean onCreateOptionsMenu(Menu menu) {
  56.         getMenuInflater().inflate(R.menu.menu, menu);
  57.         return super.onCreateOptionsMenu(menu);
  58.     }
  59.  
  60.     @Override
  61.     public boolean onOptionsItemSelected(MenuItem item) {
  62.         switch (item.getItemId()) {
  63.             case R.id.action_add:
  64.                 mAdapter.itemAdd(1);
  65.                 break;
  66.             case R.id.action_delete:
  67.                 mAdapter.itemRemove(1);
  68.                 break;
  69.  
  70.             case R.id.action_diary:
  71.                 mRecyclerView.setLayoutManager(new GridLayoutManager(this,3));
  72.                 break;
  73.             case R.id.action_catalog:
  74.                 mRecyclerView.setLayoutManager(new LinearLayoutManager(this));
  75.                 break;
  76.             case R.id.action_more:
  77.                 mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(4,StaggeredGridLayoutManager.VERTICAL));
  78.                 break;
  79.             case R.id.action_demo:
  80.                 Intent intent = new Intent(MainActivity.this,StraggedGridViewActivity.class);
  81.                 startActivity(intent);
  82.         }
  83.         return super.onOptionsItemSelected(item);
  84.     }
  85. }

MyAdapter.java

  1. public class MyAdapter extends RecyclerView.Adapter<MyViewHolder> {
  2.     private List<String> mData;
  3.     private LayoutInflater mInflater;
  4.     private Context mContext;
  5.  
  6.     private onViewItemClick onViewItemClickListener;
  7.  
  8.     public void onViewItemClickListener(onViewItemClick listener){
  9.         this.onViewItemClickListener = listener;
  10.     }
  11.  
  12.     public MyAdapter(Context context,List<String> data) {
  13.         this.mContext = context;
  14.         this.mData = data;
  15.         this.mInflater = LayoutInflater.from(context);
  16.     }
  17.  
  18.     //创建ViewHolder
  19.     @Override
  20.     public MyViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
  21.         View view = mInflater.inflate(R.layout.item,parent,false);
  22.         MyViewHolder viewHolder = new MyViewHolder(view);
  23.  
  24.         return viewHolder;
  25.     }
  26.  
  27.     //绑定ViewHolder
  28.     //final是自动添加上去的
  29.     @Override
  30.     public void onBindViewHolder(final MyViewHolder holder, final int position) {
  31.         holder.tv.setText(mData.get(position));
  32.  
  33.         /*if (onViewItemClickListener != null) {
  34.             holder.itemView.setOnClickListener(new View.OnClickListener() {
  35.                 @Override
  36.                 public void onClick(View v) {
  37.                     onViewItemClickListener.onItemClick(holder.itemView,position);
  38.                 }
  39.             });
  40.         }*/
  41.  
  42.         holder.itemView.setOnClickListener(new View.OnClickListener() {
  43.             @Override
  44.             public void onClick(View v) {
  45.                 //直接position不会刷新位置信息
  46.                 int layoutPosition = holder.getLayoutPosition();
  47.                 //onViewItemClickListener.onItemClick(holder.itemView,position);
  48.                 onViewItemClickListener.onItemClick(holder.itemView,layoutPosition);
  49.             }
  50.         });
  51.  
  52.         holder.itemView.setOnLongClickListener(new View.OnLongClickListener() {
  53.             @Override
  54.             public boolean onLongClick(View v) {
  55.                 int layoutPosition = holder.getLayoutPosition();
  56.                 onViewItemClickListener.onItemLongClick(holder.itemView,layoutPosition);
  57.                 return false;
  58.             }
  59.         });
  60.     }
  61.  
  62.     @Override
  63.     public int getItemCount() {
  64.         //return 0;
  65.         return mData.size();
  66.     }
  67.  
  68.     //自定义添加item方法
  69.     public void itemAdd(int position) {
  70.         //不是notifyItemChanged(),这是把position位置的给取代了
  71.         mData.add(position, "SSS");
  72.         notifyItemInserted(position);
  73.         //notifyItemChanged(position);
  74.     }
  75.  
  76.     //自定义删除item方法
  77.     public void itemRemove(int position) {
  78.         mData.remove(position);
  79.         notifyItemRemoved(position);
  80.     }
  81.  
  82.     //监听点击事件的接口
  83.     public interface onViewItemClick {
  84.         void onItemClick(View view, int position);
  85.         void onItemLongClick(View view, int position);
  86.     }
  87.  
  88. }
  89.  
  90. //MyViewHolder拥有所有item.xml的控件
  91. class MyViewHolder extends RecyclerView.ViewHolder {
  92.     //tv不能是private，因为MyAdapter类中的onBindViewHolder()要调用
  93.     TextView tv;
  94.  
  95.     public MyViewHolder(View itemView) {
  96.         super(itemView);
  97.         tv = (TextView) itemView.findViewById(R.id.tv_text);
  98.     }
  99. }

StraggedGridViewActivity.java

  1. public class StraggedGridViewActivity extends AppCompatActivity {
  2.     private RecyclerView mRecyclerView;
  3.     private List<String> mData;
  4.     private StraggedGridViewAdapter mAdapter;
  5.  
  6.     @Override
  7.     protected void onCreate(Bundle savedInstanceState) {
  8.         super.onCreate(savedInstanceState);
  9.         setContentView(R.layout.activity_stragged_grid_view);
  10.  
  11.         initData();
  12.         initView();
  13.  
  14.         mAdapter = new StraggedGridViewAdapter(this,mData);
  15.         mRecyclerView.setAdapter(mAdapter);
  16.  
  17.         mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(3,StaggeredGridLayoutManager.VERTICAL));
  18.     }
  19.  
  20.     private void initData(){
  21.         mData = new ArrayList<String>();
  22.         for (int i = 'A';i <= 'z';i++) {
  23.             mData.add(" "+(char)i);
  24.         }
  25.     }
  26.  
  27.     private void initView() {
  28.         mRecyclerView = (RecyclerView) findViewById(R.id.rv_recycler);
  29.     }
  30. }

StraggedGridViewAdapter.java

  1. public class StraggedGridViewAdapter extends RecyclerView.Adapter<MyViewHolder2> {
  2.     private List<String> mData;
  3.     private LayoutInflater mInflater;
  4.     private Context mContext;
  5.  
  6.     private List<Integer> mHeight;
  7.  
  8.     public StraggedGridViewAdapter(Context context,List<String> data) {
  9.         this.mContext = context;
  10.         this.mData = data;
  11.         this.mInflater = LayoutInflater.from(context);
  12.  
  13.         mHeight = new ArrayList<Integer>();
  14.         for (int i = 0;i <mData.size();i++) {
  15.             mHeight.add((int) (100+Math.random()*300));
  16.         }
  17.     }
  18.  
  19.     //创建ViewHolder
  20.     @Override
  21.     public MyViewHolder2 onCreateViewHolder(ViewGroup parent, int viewType) {
  22.         View view = mInflater.inflate(R.layout.item,parent,false);
  23.         MyViewHolder2 viewHolder = new MyViewHolder2(view);
  24.  
  25.         return viewHolder;
  26.     }
  27.  
  28.     //绑定ViewHolder
  29.     @Override
  30.     public void onBindViewHolder(MyViewHolder2 holder, int position) {
  31.         //动态高度的设置
  32.         ViewGroup.LayoutParams lp = holder.itemView.getLayoutParams();
  33.         lp.height = mHeight.get(position);
  34.         holder.itemView.setLayoutParams(lp);
  35.         holder.tv.setText(mData.get(position));
  36.     }
  37.  
  38.     @Override
  39.     public int getItemCount() {
  40.         //return 0;
  41.         return mData.size();
  42.     }
  43. }
  44.  
  45. //MyViewHolder拥有所有item.xml的控件
  46. class MyViewHolder2 extends RecyclerView.ViewHolder {
  47.     //tv不能是private，因为MyAdapter类中的onBindViewHolder()要调用
  48.     TextView tv;
  49.  
  50.     public MyViewHolder2(View itemView) {
  51.         super(itemView);
  52.         tv = (TextView) itemView.findViewById(R.id.tv_text);
  53.     }
  54. }

DividerItemDecoration.java    //这是分割线，可以不要，在divider.xml和styles.xml里面可以取代

  1. public class DividerItemDecoration extends RecyclerView.ItemDecoration
  2. {
  3.  
  4.     private static final int[] ATTRS = new int[] { android.R.attr.listDivider };
  5.  
  6.     public static final int HORIZONTAL_LIST = LinearLayoutManager.HORIZONTAL;
  7.  
  8.     public static final int VERTICAL_LIST = LinearLayoutManager.VERTICAL;
  9.  
  10.     private Drawable mDivider; //item间间隔图片资源
  11.  
  12.     private int mOrientation;  //方向:水平，垂直
  13.  
  14.     public DividerItemDecoration(Context context, int orientation)
  15.     {
  16.         final TypedArray a = context.obtainStyledAttributes(ATTRS);
  17.         mDivider = a.getDrawable(0);
  18.         a.recycle();
  19.         setOrientation(orientation);
  20.     }
  21.  
  22.     public void setOrientation(int orientation)
  23.     {
  24.         if (orientation != HORIZONTAL_LIST && orientation != VERTICAL_LIST)
  25.         {
  26.             throw new IllegalArgumentException("invalid orientation");
  27.         }
  28.         mOrientation = orientation;
  29.     }
  30.  
  31.     @Override
  32.     public void onDraw(Canvas c, RecyclerView parent)
  33.     {
  34.         //Log.v("recyclerview - itemdecoration", "onDraw()");
  35.          if (mOrientation == VERTICAL_LIST) {
  36.                 drawVertical(c, parent);
  37.             } else {
  38.                 drawHorizontal(c, parent);
  39.             }
  40.     }
  41.  
  42.     public void drawVertical(Canvas c, RecyclerView parent)
  43.     {
  44.         final int left = parent.getPaddingLeft();
  45.         final int right = parent.getWidth() - parent.getPaddingRight();
  46.  
  47.         final int childCount = parent.getChildCount();
  48.  
  49.         for (int i = 0; i < childCount; i++)
  50.         {
  51.             final View child = parent.getChildAt(i);
  52.             RecyclerView v = new RecyclerView(
  53.                     parent.getContext());
  54.             final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
  55.                     .getLayoutParams();
  56.             final int top = child.getBottom() + params.bottomMargin;
  57.             final int bottom = top + mDivider.getIntrinsicHeight();
  58.             mDivider.setBounds(left, top, right, bottom);
  59.             mDivider.draw(c);
  60.         }
  61.     }
  62.  
  63.     public void drawHorizontal(Canvas c, RecyclerView parent)
  64.     {
  65.         final int top = parent.getPaddingTop();
  66.         final int bottom = parent.getHeight() - parent.getPaddingBottom();
  67.  
  68.         final int childCount = parent.getChildCount();
  69.         for (int i = 0; i < childCount; i++)
  70.         {
  71.             final View child = parent.getChildAt(i);
  72.             final RecyclerView.LayoutParams params = (RecyclerView.LayoutParams) child
  73.                     .getLayoutParams();
  74.             final int left = child.getRight() + params.rightMargin;
  75.             final int right = left + mDivider.getIntrinsicHeight();
  76.             mDivider.setBounds(left, top, right, bottom);
  77.             mDivider.draw(c);
  78.         }
  79.     }
  80.  
  81.     //提供绘制分割线的间隙
  82.     @Override
  83.     public void getItemOffsets(Rect outRect, int itemPosition,
  84.             RecyclerView parent)
  85.     {
  86.         if (mOrientation == VERTICAL_LIST)
  87.         {
  88.             outRect.set(0, 0, 0, mDivider.getIntrinsicHeight());
  89.         } else
  90.         {
  91.             outRect.set(0, 0, mDivider.getIntrinsicWidth(), 0);
  92.         }
  93.     }
  94. }

main_activity.xml

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2.     xmlns:tools="http://schemas.android.com/tools"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="match_parent"
  5.     tools:context=".MainActivity">
  6.  
  7.     <android.support.v7.widget.RecyclerView
  8.         android:id="@+id/rv_recycler"
  9.         android:layout_height="match_parent"
  10.         android:layout_width="match_parent"/>
  11. </RelativeLayout>

activity_stragged_grid_view.xml

  1. <RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2.     xmlns:tools="http://schemas.android.com/tools"
  3.     android:layout_width="match_parent"
  4.     android:layout_height="match_parent"
  5.     android:paddingLeft="@dimen/activity_horizontal_margin"
  6.     android:paddingRight="@dimen/activity_horizontal_margin"
  7.     android:paddingTop="@dimen/activity_vertical_margin"
  8.     android:paddingBottom="@dimen/activity_vertical_margin"
  9.     tools:context="my.com.example.x550v.recyclerviewdemo.StraggedGridViewActivity">
  10.  
  11.     <android.support.v7.widget.RecyclerView
  12.         android:id="@+id/rv_recycler"
  13.         android:layout_height="match_parent"
  14.         android:layout_width="match_parent"/>
  15.  
  16. </RelativeLayout>

item.xml

  1. <LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
  2.     android:layout_width="match_parent"
  3.     android:layout_height="match_parent"
  4.     android:background="@drawable/button"
  5.     android:layout_marginTop="8dp"
  6.     android:layout_marginBottom="8dp"
  7.     android:layout_marginRight="5dp"
  8.     android:layout_marginLeft="5dp"
  9.     android:orientation="vertical">
  10.     <TextView
  11.         android:id="@+id/tv_text"
  12.         android:gravity="center"
  13.         android:textColor="#fff"
  14.         android:textSize="20sp"
  15.         android:layout_gravity="center"
  16.         android:layout_width="wrap_content"
  17.         android:layout_height="wrap_content" />
  18.  
  19. </LinearLayout>

divider.xml

  1. <!--写完后要在styles里面声明-->
  2. <shape xmlns:android="http://schemas.android.com/apk/res/android"
  3.     android:shape="rectangle">
  4.     <size android:height="4dp"/>
  5.     <gradient
  6.         android:startColor="#000"
  7.         android:centerColor="#fff"
  8.         android:endColor="#fff"
  9.         android:type="linear"/>
  10. </shape>

buttom.xml

  1. <selector
  2.     xmlns:android="http://schemas.android.com/apk/res/android">
  3.     <item
  4.         android:state_pressed="false">
  5.         <shape
  6.             android:shape="rectangle">
  7.             <gradient
  8.                 android:angle="45"
  9.                 android:centerX="35%"
  10.                 android:centerColor="#43D2E8"
  11.                 android:startColor="#43D2E8"
  12.                 android:endColor="#000000"
  13.                 android:type="linear"
  14.                 />
  15.         </shape>
  16.     </item>
  17.  
  18.     <item
  19.         android:state_pressed="true"
  20.         >
  21.         <shape
  22.             android:shape="rectangle">
  23.             <gradient
  24.                 android:angle="45"
  25.                 android:centerX="35%"
  26.                 android:centerColor="#B3DDE8"
  27.                 android:startColor="#43D2E8"
  28.                 android:endColor="#000000"
  29.                 android:type="linear"
  30.                 />
  31.         </shape>
  32.     </item>
  33.  
  34. </selector>

menu.xml

  1. <menu
  2.     xmlns:android="http://schemas.android.com/apk/res/android"
  3.     xmlns:app="http://schemas.android.com/apk/res-auto"
  4.     xmlns:tools="http://schemas.android.com/tools"
  5.     tools:context="my.com.example.x550v.recyclerviewdemo.MainActivity">
  6.  
  7.     <item
  8.         android:id="@+id/action_add"
  9.         android:title="Add"
  10.         android:icon="@android:drawable/ic_media_play"
  11.         app:showAsAction="ifRoom"/>
  12.  
  13.     <item
  14.         android:id="@+id/action_delete"
  15.         android:title="Add"
  16.         android:icon="@android:drawable/ic_media_pause"
  17.         app:showAsAction="ifRoom"/>
  18.  
  19.     <item
  20.         android:id="@+id/action_both"
  21.         android:title="action"
  22.         android:icon="@android:drawable/ic_input_add"
  23.         app:showAsAction="ifRoom|collapseActionView">
  24.  
  25.         <menu>
  26.             <item
  27.                 android:id="@+id/action_diary"
  28.                 android:title="GirdView"
  29.                 android:icon="@android:drawable/ic_menu_save"
  30.                 app:showAsAction="ifRoom"/>
  31.             <item
  32.                 android:id="@+id/action_catalog"
  33.                 android:title="LinearView"
  34.                 android:icon="@android:drawable/ic_menu_sort_by_size"
  35.                 app:showAsAction="ifRoom"/>
  36.             <item
  37.                 android:id="@+id/action_more"
  38.                 android:title="StaggeredGridView"
  39.                 android:icon="@android:drawable/ic_menu_myplaces"
  40.                 app:showAsAction="ifRoom"/>
  41.             <item
  42.                 android:id="@+id/action_demo"
  43.                 android:title="StaggeredGridDemoView"
  44.                 android:icon="@android:drawable/ic_menu_mapmode"
  45.                 app:showAsAction="ifRoom"/>
  46.         </menu>
  47.     </item>
  48.  
  49. </menu>

styles.xml

  1. <style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar">
  2.         <!-- Customize your theme here. -->
  3.         <item name="colorPrimary">@color/colorPrimary</item>
  4.         <item name="colorPrimaryDark">@color/colorPrimaryDark</item>
  5.         <item name="colorAccent">@color/colorAccent</item>
  6.  
  7.         <!--设置分割线-->
  8.         <item name="android:listDivider">@drawable/diver</item>
  9.  
  10.     </style>

运行效果：

          

      

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