Android RecyclerView使用详解（一）

一、前言 RecyclerView是谷歌V7包下新增的控件,用来替代ListView的使用,在RecyclerView标准化了ViewHolder类似于ListView中convertView用来做视图缓.

先来说说RecyclerView的有点就是,他可以通过设置LayoutManager来快速实现listview、gridview、瀑布流的效果，而且还可以设置横向和纵向显示，添加动画效果也非常简单(自带了ItemAnimation，可以设置加载和移除时的动画，方便做出各种动态浏览的效果),也是官方推荐使用的.以下是官方的说明:

RecyclerView is a more advanced and flexible version of ListView. This widget is a container for large sets of views that can be recycled and scrolled very efficiently. Use the RecyclerView widget when you have lists with elements that change dynamically. 简单说就是当你需要动态展示一组数据的时候就会需要用到它。

讲了这么多虚的，接下来我们看看在代码中怎么来实现.

##二、实现

首先要用这个控件，你需要在gradle文件中添加包的引用（配合官方CardView使用）

[代码]xml代码：

?

1 2	compile 'com.android.support:cardview-v7:21.0.3' compile 'com.android.support:recyclerview-v7:21.0.3'

 

然后是在XML文件用使用它

[代码]xml代码：

?

1

<android.support.v7.widget.recyclerview xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="match_parent" android:id="@+id/recycler_view" android:layout_centervertical="true" android:layout_centerhorizontal="true"></android.support.v7.widget.recyclerview>

 

接着在Activity中设置它

[代码]java代码：

?

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33

public class MainActivity extends ActionBarActivity {     @InjectView(R.id.recycler_view)     RecyclerView mRecyclerView;       @Override     protected void onCreate(Bundle savedInstanceState) {         super.onCreate(savedInstanceState);         setContentView(R.layout.activity_main);         ButterKnife.inject(this);           mRecyclerView.setLayoutManager(new LinearLayoutManager(this));//这里用线性显示 类似于listview //        mRecyclerView.setLayoutManager(new GridLayoutManager(this, 2));//这里用线性宫格显示 类似于grid view //        mRecyclerView.setLayoutManager(new StaggeredGridLayoutManager(2, OrientationHelper.VERTICAL));//这里用线性宫格显示 类似于瀑布流         mRecyclerView.setAdapter(new NormalRecyclerViewAdapter(this));     }       @Override     public boolean onCreateOptionsMenu(Menu menu) {         getMenuInflater().inflate(R.menu.menu_main, menu);         return true;     }       @Override     public boolean onOptionsItemSelected(MenuItem item) {         int id = item.getItemId();           if (id == R.id.action_settings) {             return true;         }           return super.onOptionsItemSelected(item);     } }

 

然后是适配器代码

[代码]java代码：

?

01 02 03 04 05 06 07 08 09 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

public class NormalRecyclerViewAdapter extends RecyclerView.Adapter<normalrecyclerviewadapter.normaltextviewholder> {     private final LayoutInflater mLayoutInflater;     private final Context mContext;     private String[] mTitles;       public NormalRecyclerViewAdapter(Context context) {         mTitles = context.getResources().getStringArray(R.array.titles);         mContext = context;         mLayoutInflater = LayoutInflater.from(context);     }       @Override     public NormalTextViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {         return new NormalTextViewHolder(mLayoutInflater.inflate(R.layout.item_text, parent, false));     }       @Override     public void onBindViewHolder(NormalTextViewHolder holder, int position) {         holder.mTextView.setText(mTitles[position]);     }       @Override     public int getItemCount() {         return mTitles == null ? 0 : mTitles.length;     }       public static class NormalTextViewHolder extends RecyclerView.ViewHolder {         @InjectView(R.id.text_view)         TextView mTextView;           NormalTextViewHolder(View view) {             super(view);             ButterKnife.inject(this, view);             view.setOnClickListener(new View.OnClickListener() {                 @Override                 public void onClick(View v) {                     Log.d("NormalTextViewHolder", "onClick--> position = " + getPosition());                 }             });         }     } }</normalrecyclerviewadapter.normaltextviewholder>

 

##三、效果图

LinearLayoutManager样式

GridLayoutManager样式

最后给出代码下载地址–>Demo Code