常用的数据适配器SimpleAdapter

来源：互联网发布：mac ssh客户端编辑：程序博客网时间：2024/05/03 11:00

activity_main.xml

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

list_item.xml

    <ImageView        android:id="@+id/iv"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />    <TextView        android:id="@+id/tv"        android:layout_width="wrap_content"        android:layout_height="wrap_content" />

MainActivity.java

package org.gentry.simpleadapter;import java.util.ArrayList;import java.util.HashMap;import java.util.List;import java.util.Map;import android.app.Activity;import android.os.Bundle;import android.widget.ListView;import android.widget.SimpleAdapter;public class MainActivity extends Activity {@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);ListView lv = (ListView) findViewById(R.id.lv);List<Map<String, Object>> data = new ArrayList<Map<String, Object>>();Map<String, Object> map1 = new HashMap<String, Object>();map1.put("nametext", "我是第一个功能");map1.put("iconid", R.drawable.ic_launcher);Map<String, Object> map2 = new HashMap<String, Object>();map2.put("nametext", "我是第二个功能");map2.put("iconid", R.drawable.ic_launcher);Map<String, Object> map3 = new HashMap<String, Object>();map3.put("nametext", "我是第三个功能");map3.put("iconid", R.drawable.ic_launcher);Map<String, Object> map4 = new HashMap<String, Object>();map4.put("nametext", "我是第四个功能");map4.put("iconid", R.drawable.ic_launcher);Map<String, Object> map5 = new HashMap<String, Object>();map5.put("nametext", "我是第五个功能");map5.put("iconid", R.drawable.ic_launcher);data.add(map1);data.add(map2);data.add(map3);data.add(map4);data.add(map5);// data：绑定的数据， list集合// R.layout.list_item：数据显示对应的布局// 要让数据跟view对象建立一个映射关系// from[]：map集合里面数据的key// to[]：布局文件里面的idlv.setAdapter(new SimpleAdapter(this, data, R.layout.list_item,new String[] { "nametext", "iconid" }, new int[] { R.id.tv,R.id.iv }));}}

0 0