Android_listView_exc

listView布局:

<RelativeLayout 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"
tools:context="com.example.homework04.MainActivity" > <ListView
android:id="@+id/listview"
android:layout_width="match_parent"
android:layout_height="match_parent" /> </RelativeLayout>

item布局

<?xml version="1.0" encoding="utf-8"?>
<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:layout_width="match_parent"
android:layout_height="match_parent" >
<!-- 图像 -->
<ImageView
android:id="@+id/image"
android:layout_width="100dp"
android:layout_height="100dp"
android:src="@drawable/image1"
/>
<!-- 姓名 -->
<TextView
android:id="@+id/text_name"
android:layout_width="100dp"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/image"
android:textSize="20sp"
android:layout_marginTop="10dp"
android:text="名侦探柯南"/>
<!-- 年龄 -->
<TextView
android:id="@+id/text_age"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_toRightOf="@id/image"
android:layout_alignBottom="@id/image"
android:textSize="20sp"
android:layout_marginBottom="10dp"
android:text="17"/>
<!-- 按钮 -->
<Button
android:id="@+id/button"
android:layout_width="wrap_content"
android:layout_height="50dp"
android:layout_toRightOf="@id/text_name"
android:layout_marginTop="25dp"
android:text="更多"
/>
</RelativeLayout>

源代码:

package com.example.homework04;

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.view.Menu;
import android.view.MenuItem;
import android.widget.ListView;
import android.widget.SimpleAdapter; public class MainActivity extends Activity {
private ListView listview;
private SimpleAdapter adapter; @Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
// 初始化adapter
adapter = new SimpleAdapter(
MainActivity.this, // 第一个参数:上下文
getData(),// 第二个参数:listview中显示的数据
R.layout.item,// 第三个参数:每行的布局
new String[]{"image", "name", "age", "button"},// 第四个参数:字符串数组 Map中的key的值
new int[]{R.id.image, R.id.text_name, R.id.text_age, R.id.button}); // 第五个参数:item.xml中每个控件的id
listview = (ListView) findViewById(R.id.listview);
listview.setAdapter(adapter);
} // 生成listview显示的数据

    private List<Map<String, ?>> getData() {
    // TODO Auto-generated method stub
      List<Map<String,?>> list = new ArrayList<Map<String,?>>();
      int[] image = {R.drawable.image1,R.drawable.image2,R.drawable.image3};
      String[] name={"野比大雄","野比先生","野比太太"};
      String[] age={"12","40","38"};
      for (int i = 0; i < age.length; i++) {
      Map<String,Object> map = new HashMap<String, Object>();
      map.put("image", image[i]);
      map.put("text_name", name[i] );
      map.put("text_age", age[i] );
      map.put("button", "更多");
      list.add(map);

      }
    return list;

    }
}

Android_listView_exc

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