RecyclerView的简单使用

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package com.example.liangshaoteng.myapplication;import android.support.v7.app.AppCompatActivity;import android.os.Bundle;import android.support.v7.widget.GridLayoutManager;import android.support.v7.widget.LinearLayoutManager;import android.support.v7.widget.RecyclerView;import android.support.v7.widget.StaggeredGridLayoutManager;public class MainActivity extends AppCompatActivity {    private String[] data={"a","b","c","d","e","f","g","h","i","j","k","l","m"};    public static final String LOG="look";    private RecyclerView recyclerView;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        //初始化控件        recyclerView = (RecyclerView) findViewById(R.id.recyclerview);        //LinearLayout        LinearLayoutManager  linearLayoutManager =new LinearLayoutManager(this);        //GridLayout        GridLayoutManager gridLayoutManager = new GridLayoutManager(this,3);        //瀑布流        StaggeredGridLayoutManager layoutManager=new StaggeredGridLayoutManager(2,StaggeredGridLayoutManager.VERTICAL);        //设置使用那个模式        recyclerView.setLayoutManager(layoutManager);        //adapter        FruitAdapter fruitAdapter=new FruitAdapter(data);        recyclerView.setAdapter(fruitAdapter);    }}

package com.example.liangshaoteng.myapplication;import android.support.v7.widget.RecyclerView;import android.view.LayoutInflater;import android.view.View;import android.view.ViewGroup;import android.widget.ImageView;import android.widget.TextView;import android.widget.Toast;/** * Created by liangshaoteng on 17-6-20. */public class FruitAdapter extends RecyclerView.Adapter<FruitAdapter.ViewHolder>{    String[] strings;    @Override    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {        View view=LayoutInflater.from(parent.getContext()).inflate(R.layout.activity_main2,parent,false);        final ViewHolder viewHolder=new ViewHolder(view);        //设置点击事件        viewHolder.textView.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                Toast.makeText(v.getContext(),"postion : "+viewHolder.getAdapterPosition(),Toast.LENGTH_LONG).show();            }        });        return viewHolder;    }    public FruitAdapter(String[] strings){        //获取外界传来的数据        this.strings=strings;    }    @Override    public void onBindViewHolder(ViewHolder holder, int position) {        //获取当前的数据        String string = strings[position];        //设置文本数据        holder.textView.setText(string);    }    @Override    public int getItemCount() {        //外界数据的总数        return strings.length;    }    public class ViewHolder extends RecyclerView.ViewHolder {        private final TextView textView;        public ViewHolder(View itemView) {            super(itemView);            //初始化控件            textView = (TextView) itemView.findViewById(R.id.tv);        }    }}

<?xml version="1.0" encoding="utf-8"?><LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    xmlns:tools="http://schemas.android.com/tools"    android:id="@+id/activity_main2"    android:orientation="horizontal"    android:layout_width="match_parent"    android:layout_height="50dp"    tools:context="com.example.liangshaoteng.myapplication.Main2Activity">        <ImageView        android:layout_gravity="center"        android:src="@android:drawable/alert_dark_frame"        android:id="@+id/iv"        android:layout_width="50dp"        android:layout_height="50dp"        />    <TextView        android:id="@+id/tv"        android:text="465"        android:layout_marginLeft="20dp"        android:gravity="center_vertical"        android:layout_gravity="center_vertical"        android:layout_width="match_parent"        android:layout_height="wrap_content" /></LinearLayout>