Android组件之ListView(列表视图)
Android组件之ListView(列表视图)
ListView列表视图,为列表添加列表项有两种方法,下面用一个列子分别介绍:
在样式文件中:
- <?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" >
- <TextView
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:text="名单:"
- />
- <ListView
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:entries="@array/sports"
- android:divider="#00FF00"
- />
- <ListView
- android:layout_width="fill_parent"
- android:layout_height="wrap_content"
- android:id="@+id/nameList"
- android:divider="#00FF00"
- />
- </LinearLayout>
- <?xml version="1.0" encoding="utf-8"?>
- <resources>
- <string-array name="sports" >
- <item>足球</item>
- <item>篮球</item>
- <item>乒乓球</item>
- <item>网球</item>
- </string-array>
- </resources>
- package cn.class3g.activity;
- import android.app.Activity;
- import android.os.Bundle;
- import android.util.Log;
- import android.view.View;
- import android.widget.AdapterView;
- import android.widget.AdapterView.OnItemClickListener;
- import android.widget.ArrayAdapter;
- import android.widget.ListView;
- public class ListViewDemo extends Activity
- implements OnItemClickListener{
- ListView nameList = null;
- String[] names = {"张三","李四","王五","宋六","猪八"};
- protected void onCreate(Bundle savedInstanceState) {
- super.onCreate(savedInstanceState);
- this.setContentView(R.layout.list_layout);
- findViews();
- }
- private void findViews() {
- nameList = (ListView) this.findViewById(R.id.nameList);
- //定义一个适配器,同时将定义列表项的数组添加进去
- ArrayAdapter adapter = new ArrayAdapter(this,
- android.R.layout.simple_list_item_1,names);
- nameList.setAdapter(adapter);
- //为列表添加监听事件
- nameList.setOnItemClickListener(this);
- }
- //覆盖监听器接口OnItemClickListener的抽象方法 通过日志打印所点击的列表项信息
- public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) {
- Log.i("TAG", names[arg2]
- + " position=" + String.valueOf(arg2)
- +" row_id=" + String.valueOf(arg3) );
- }
- }
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