学步园

参考《疯狂android讲义》第2.5节P94

1、创建一个或者多个ListView

<LinearLayout 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"
    android:paddingBottom="@dimen/activity_vertical_margin"
    android:paddingLeft="@dimen/activity_horizontal_margin"
    android:paddingRight="@dimen/activity_horizontal_margin"
    android:paddingTop="@dimen/activity_vertical_margin"
    android:orientation="vertical"
    tools:context=".MainActivity" >
    
    <ListView 
        android:id="@+id/list1"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:divider="#f00"
        android:dividerHeight="2dp"
        android:headerDividersEnabled="false" />
    
        <ListView 
        android:id="@+id/list2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:divider="#0f0"
        android:dividerHeight="2dp"
        android:headerDividersEnabled="true" />
</LinearLayout>

2、创建TextViewResource，为每个元素定义其显示属性

array_item1.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tv_item1"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:textSize="20sp"
    android:padding="10dp"
    android:shadowColor="#0f0"
    android:shadowDx="4"
    android:shadowDy="4"
    android:shadowRadius="2">
</TextView>

array_item2.xml

<?xml version="1.0" encoding="utf-8"?>
<TextView xmlns:android="http://schemas.android.com/apk/res/android"
    android:id="@+id/tv_item2"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:textSize="20sp"
    android:padding="10dp"
    android:shadowColor="#ff0"
    android:shadowDx="4"
    android:shadowDy="4"
    android:shadowRadius="2">
</TextView>

3、创建Activity，并完成以下三个步骤

package com.ljh.listviewdemo;

import android.os.Bundle;
import android.app.Activity;
import android.widget.ArrayAdapter;
import android.widget.ListView;

public class MainActivity extends Activity {

	@Override
	protected void onCreate(Bundle savedInstanceState) {
		super.onCreate(savedInstanceState);
		setContentView(R.layout.activity_main);
		
		//3、定义每个元素的内容
		String[] arr1 = new String[]{"孙悟空","猪八戒","沙僧","唐僧"};
		
		//4、将元素属性及元素内容包装为ArrayAdapter
		ArrayAdapter<String> adapter1 = new ArrayAdapter<String>(this, R.layout.array_item1, arr1);
		
		//5、为ListView设置Adapter
		ListView list1 = (ListView) findViewById(R.id.list1);
		list1.setAdapter(adapter1);
		
		//3、定义每个元素的内容
		String[] arr2 = new String[]{"Java","C++","Python","PHP"};
		
		//4、将元素属性及元素内容包装为ArrayAdapter
		ArrayAdapter<String> adapter2 = new ArrayAdapter<String>(this, R.layout.array_item2, arr2);
		
		//5、为ListView设置Adapter
		ListView list2= (ListView) findViewById(R.id.list2);
		list2.setAdapter(adapter2);
	}
	
}