Android重要控件———ListView

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools" android:layout_width="match_parent"
    android:layout_height="match_parent" >

    <ListView
        android:id="@+id/list_view"
        android:layout_width="match_parent"
        android:layout_height="match_parent">

    </ListView>
</RelativeLayout>

---

package com.example.listviewtest;

import android.support.v7.app.AppCompatActivity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.TextView;


public class ListviewtestActivity extends AppCompatActivity {

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.listviewtest);

        ListView lv =(ListView)findViewById(R.id.list_view);
        String[] data ={"apple","banana","watermelon","pear","peach","grape","mango","strawberry","tomato","pineapple","cherry","tea","coin","hha"};
        ArrayAdapter<String> adapter = new ArrayAdapter<String>(ListviewtestActivity.this,android.R.layout.simple_list_item_1,data);
        lv.setAdapter(adapter);

    }
}