ListView-ArrayAdaptor

Java
setContentView(R.layout.activity_main);

ListView listView = (ListView)this.findViewById(R.id.listView);//listView
String[] strs = new String[]{"1","2","3","4"};//listView要显示的数据
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this,android.R.layout.simple_expandable_list_item_1,strs);//listView相关数据和视图的适配器
listView.setAdapter(adapter);//进行适配

xml

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:id="@+id/activity_main"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    tools:context="com.example.cz.myapplication.MainActivity">


    <ListView
        android:id="@+id/listView_main_content"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:layout_alignParentTop="true" />
</RelativeLayout>