练习使用ListView,BaseAdapter，先展示文字的，再练习图片的
MainActivity.java
package com.android.test;import android.app.Activity;import android.os.Bundle;import android.view.View;import android.view.ViewGroup;import android.widget.BaseAdapter;import android.widget.ListAdapter;import android.widget.ListView;import android.widget.TextView;public class MainActivity extends Activity { private ListView lv_images; @Override protected void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); lv_images = (ListView) findViewById(R.id.lv_images); ListAdapter adapter = new ImageAdapter(); lv_images.setAdapter(adapter); } /** * 适配器 * @author taoshihan * */ class ImageAdapter extends BaseAdapter { @Override public View getView(int position, View convertView, ViewGroup parent) { String url=(String) getItem(position); View view; if(convertView!=null){ view=convertView; }else{ view=View.inflate(getApplicationContext(), R.layout.image_item, null); } TextView tv_image=(TextView) view.findViewById(R.id.tv_image); tv_image.setText(url); return view; } @Override public int getCount() { // TODO Auto-generated method stub return Images.IMAGE_URLS.length; } @Override public Object getItem(int position) { return Images.IMAGE_URLS[position]; } @Override public long getItemId(int position) { // TODO Auto-generated method stub return position; } } static class Images{ public final static String[] IMAGE_URLS = new String[]{ "http://img.my.csdn.net/uploads/201508/05/1438760758_3497.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760758_6667.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760757_3588.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760756_3304.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760755_6715.jpeg", "http://img.my.csdn.net/uploads/201508/05/1438760726_5120.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760726_8364.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760725_4031.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760724_9463.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760724_2371.jpg", "http://img.my.csdn.net/uploads/201508/05/1438760707_4653.jpg" }; }}activity_main.
<??><LinearLayout ="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> <ListView android:layout_width="match_parent" android:layout_height="wrap_content" android:id="@+id/lv_images"></ListView></LinearLayout>
image_item.
<??><LinearLayout ="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical" > <TextView android:id="@+id/tv_image" android:layout_width="match_parent" android:layout_height="wrap_content"/></LinearLayout>
原标题：[android] 练习使用ListView（一）
关键词：Android
我知道了 