第二章实例:SimpleAdapter结合listview实现列表视图

package test.simpleAdapter;
 
import java.util.ArrayList;
import java.util.HashMap;
import java.util.List;
import java.util.Map;
 
import com.example.simpleadapters.R;
 
import android.app.Activity;
import android.os.Bundle;
import android.widget.ListView;
import android.widget.SimpleAdapter;
 
public class ListContent extends Activity {
 
    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        this.setContentView(R.layout.list_content);
        //-----------------------------------------
        //为simpleAdapter构造数据
        String []title = {"排山倒海","葵花点穴手","如来神掌"};
        String []tips  = {"威力巨大给对手造成巨大内伤，即使对手逃逸也会无疾而终","短暂制瘫对方,瞬间废除对手活动能力,即可为所欲为","有效杀伤力达几百米寸草不生，但灰尘太大不环保"};
        int []icon = {R.drawable.psdh,R.drawable.khdxs,R.drawable.rlsz};
        String []time ={"14:30","14:20","14:10"};
        //---------------------------------------
        //构造玩上述数据后，开始构造它们xml布局
        //---------------------------------------
        //将数据打包成MAP对象
        List<Map<String,Object>> map_content = new ArrayList<Map<String,Object>>();
        for(int i = 0; i < title.length;i++){
            Map map = new HashMap<String, Object>();
            //打包方式 key value键值对形式
            map.put("title", title[i]);
            map.put("tips", tips[i]);
            map.put("icon", icon[i]);
            map.put("time", time[i]);
            //------------------------------------
            map_content.add(map);
        }
        //----------------------------------------
        //生成xml布局资源ID引用
 
        int []xmlres = {R.id.avatar,R.id.list_title,R.id.list_tips,R.id.list_time};
        //生成键素组
        String []mapkey = {"icon","title","tips","time"};//与上面的xmlres数组的资源ID对应
        //map对象构造完毕，接下来生成simpleAdapter对象
        //构造simpleAdapter所需参数说明:context窗口对象，盛装map的list，列表栏目布局资源ID的引用,list中的map中对应的键名称,键名称对应的控件资源ID;
        SimpleAdapter sAdapter = new SimpleAdapter(ListContent.this, map_content, R.layout.simple_adapter_list, mapkey, xmlres);
        ListView list = (ListView)findViewById(R.id.main_list);
        list.setAdapter(sAdapter);//设置资源
 
    }
 
}

xml:

//list_content
<?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/main_list"
        android:layout_width="match_parent"
        android:layout_height="match_parent">
 
    </ListView>
 
</LinearLayout>

//simple_adapter
<?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" >
    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal" >
        <ImageView
            android:id="@+id/avatar"
            android:layout_width="match_parent"
            android:layout_height="70dp"
            android:layout_weight="0.7"/>
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_weight="0.3"
            android:orientation="vertical" >
            <LinearLayout
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:orientation="horizontal" >
                <TextView
                    android:id="@+id/list_title"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.2"/>
                <TextView
                    android:id="@+id/list_time"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"
                    android:layout_weight="0.8"/>
            </LinearLayout>
            <TextView
                    android:id="@+id/list_tips"
                    android:layout_width="match_parent"
                    android:layout_height="wrap_content"/>
        </LinearLayout>
    </LinearLayout>
 
</LinearLayout>