ListView列表项

时间:2022-03-31 15:34:37

方法,在xml文件中添加一个ListView,然后在MainActivity中

private ListView listView;
private ArrayAdapter<String> arr_adapter;

listView = (ListView) findViewById(R.id.listView1);
String[] arr_data = {"明明","丽媛", "彭辉", "倩倩", "迪迪","李琰", "赛磊"};
/*
* 新建一个适配器
* ArrayAdapter(上下文,当前ListView加载的每一个列表项所对应的布局文件,数据源);
* 适配器加载数据源
*/
arr_adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arr_data);
//视图加载适配器
listView.setAdapter(arr_adapter);

activity_main.xml

<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=".MainActivity" > <ListView
android:id="@+id/listView1"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_alignParentLeft="true"
android:layout_alignParentTop="true" >
</ListView> </RelativeLayout>

MainActivity

package com.thinker.arrayadapter;

import android.app.Activity;
import android.os.Bundle;
import android.widget.ArrayAdapter;
import android.widget.ListView;
import android.widget.SimpleAdapter; public class MainActivity extends Activity {
private ListView listView;
private ArrayAdapter<String> arr_adapter;
private SimpleAdapter simpleAdapter;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
listView = (ListView) findViewById(R.id.listView1);
String[] arr_data = {"明明","丽媛", "彭辉", "倩倩", "迪迪","李琰", "赛磊"};
/*
* 新建一个适配器
* ArrayAdapter(上下文,当前ListView加载的每一个列表项所对应的布局文件,数据源);
* 适配器加载数据源
*/
arr_adapter = new ArrayAdapter<String>(this, android.R.layout.simple_list_item_1, arr_data);
//视图加载适配器
listView.setAdapter(arr_adapter); }
}