安卓RecyclerView的简单使用

先来两个布局文件

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="match_parent"
    android:layout_height="match_parent">



    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="RecycleListView"
        android:layout_margin="10dp"
        android:textSize="25sp"
        android:textColor="#000000"
        android:layout_gravity="center"/>



    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
    </android.support.v7.widget.RecyclerView>



</LinearLayout>

下面是另一个：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical" android:layout_width="match_parent"
    android:layout_height="wrap_content">

    <TextView
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:gravity="center"
        android:textSize="25sp"
        android:textColor="#000000"
        android:id="@+id/number"
        android:layout_margin="5dp"
        android:text="1"/>

</LinearLayout>

布局很简单，接下来直接放Activity的代码：

recyclerView = (RecyclerView) findViewById(R.id.recyclerView);
List<String>strings = new ArrayList<>();
for (int i = 0; i < 15; i++) {
    strings.add(""+i);
}

LinearLayoutManager manager = new LinearLayoutManager(this);//很重要
manager.setOrientation(LinearLayoutManager.HORIZONTAL);//控制横竖滑动
recyclerView.setLayoutManager(manager);//加载进Layout

recyclerView.setAdapter(new MyAdapter(context,strings));

最后是自定义Adapter：

public class MyAdapter extends RecyclerView.Adapter<MyAdapter.ViewHolder> {
    Context context;
    List<String> strings;

    public MyAdapter(Context context, List<String> strings) {
        this.context = context;
        this.strings = strings;
    }




    static class ViewHolder extends RecyclerView.ViewHolder{
        private TextView number;

        public ViewHolder (View view){
            super(view);
            number = (TextView) view.findViewById(R.id.number);
        }


    }




    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, final int viewType) {
        View view = LayoutInflater.from(parent.getContext()).inflate(R.layout.recycler,parent,false);
        final ViewHolder vie = new ViewHolder(view);
        vie.number.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                int position = vie.getAdapterPosition();
                Toast.makeText(context, ""+strings.get(position), Toast.LENGTH_SHORT).show();
            }
        });
        return vie;
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        holder.number.setText(strings.get(position)+"");
    }

    @Override
    public int getItemCount() {
        return strings.size();
    }




}

就这样。