Android ImageView如何加载网络图片资源
Java代码http://bluerose.iteye.com/images/icon_star.png[*]package com.android.antking.imageview;
[*]
[*]import java.io.InputStream;
[*]import java.net.HttpURLConnection;
[*]import java.net.MalformedURLException;
[*]import java.net.URL;
[*]
[*]import android.app.Activity;
[*]import android.graphics.Bitmap;
[*]import android.graphics.BitmapFactory;
[*]import android.os.Bundle;
[*]import android.util.Log;
[*]import android.view.View;
[*]import android.widget.ImageView;
[*]
[*]public class MainActivity extends Activity {
[*] //定义一个图片显示控件
[*] private ImageView imageView;
[*] /** Called when the activity is first created. */
[*] @Override
[*] public void onCreate(Bundle savedInstanceState) {
[*] super.onCreate(savedInstanceState);
[*] setContentView(R.layout.main);
[*] //图片资源
[*] String url = "http://s16.sinaimg.cn/orignal/89429f6dhb99b4903ebcf&690";
[*] //得到可用的图片
[*] Bitmap bitmap = getHttpBitmap(url);
[*] imageView = (ImageView)this.findViewById(R.id.imageViewId);
[*] //显示
[*] imageView.setImageBitmap(bitmap);
[*]
[*] }
[*] /**
[*] * 获取网落图片资源
[*] * @param url
[*] * @return
[*] */
[*] public static Bitmap getHttpBitmap(String url){
[*] URL myFileURL;
[*] Bitmap bitmap=null;
[*] try{
[*] myFileURL = new URL(url);
[*] //获得连接
[*] HttpURLConnection conn=(HttpURLConnection)myFileURL.openConnection();
[*] //设置超时时间为6000毫秒，conn.setConnectionTiem(0);表示没有时间限制
[*] conn.setConnectTimeout(6000);
[*] //连接设置获得数据流
[*] conn.setDoInput(true);
[*] //不使用缓存
[*] conn.setUseCaches(false);
[*] //这句可有可无，没有影响
[*] //conn.connect();
[*] //得到数据流
[*] InputStream is = conn.getInputStream();
[*] //解析得到图片
[*] bitmap = BitmapFactory.decodeStream(is);
[*] //关闭数据流
[*] is.close();
[*] }catch(Exception e){
[*] e.printStackTrace();
[*] }
[*]
[*] return bitmap;
[*]
[*] }
[*]}
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