42.Android之ListView中ArrayAdapter简单学习

今天学习下Android中ListView关于ArrayAdapter数据绑定, 废话少说直接上代码。

改下布局文件：

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

    <ListView
        android:id="@+id/lv1"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:layout_weight="1">
    </ListView>
    
     <ListView
        android:id="@+id/lv2"
        android:layout_width="match_parent"
        android:layout_height="wrap_content" 
        android:layout_weight="1">
    </ListView>
    
      <ListView
        android:id="@+id/lv3"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
    </ListView>
     
        <ListView
        android:id="@+id/lv4"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_weight="1" >
    </ListView>
</LinearLayout>

代码修改：

package com.example.listviewarraydemo;

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


public class MainActivity extends Activity {

    private ListView listView = null;
    private ListView listView_two = null;
    private ListView listView_three = null;
    private ListView listView_four = null;
    ArrayAdapter<String> adapter1;
    ArrayAdapter<String> adapter2;
    ArrayAdapter<String> adapter3;
    ArrayAdapter<String> adapter4;
    private static final String[] strs = {"one item","two item","three item","four item"};
    private static final String[] strs_two = {"1111","2222","3333","4444"};
    private static final String[] strs_three = {"AAAA","BBBB","CCCC","DDDD"};
    private static final String[] strs_four = {"yuwen","shuxue","yingyu","tiyu"};
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);
        
        listView = (ListView)findViewById(R.id.lv1);
        listView_two = (ListView)findViewById(R.id.lv2);
        listView_three = (ListView)findViewById(R.id.lv3);
        listView_four = (ListView)findViewById(R.id.lv4);
        
        adapter1 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_1,strs);
        adapter2 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_checked,strs_two);
        adapter3 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_multiple_choice,strs_three);
        adapter4 = new ArrayAdapter<String>(this,android.R.layout.simple_list_item_single_choice,strs_four);
        
        listView.setAdapter(adapter1);
        listView_two.setAdapter(adapter2);
        listView_two.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        listView_three.setAdapter(adapter3);
        listView_three.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
        listView_four.setAdapter(adapter4);
        listView_four.setChoiceMode(ListView.CHOICE_MODE_SINGLE);
    }
     
}

一些代码说明：

ListView自身带了单选、多选模式，可通过listview.setChoiceMode来设置：
listview.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);//开启多选模式
listview.setChoiceMode(ListView.CHOICE_MODE_SINGLE);//开启单选模式

运行效果：

至于ListView与SimpleAdapter使用可以参考这里：http://www.cnblogs.com/benchao/p/5213005.html