Android4.0加載網絡圖片

　　4.0系統加載網絡圖片不能發在主線程中運行,否則會報異常,用新開線程方法可以解決:
 

package com.smalt.thread; 

import java.io.InputStream; 

import android.graphics.Bitmap; 
import android.graphics.BitmapFactory; 
import android.os.AsyncTask; 
import android.util.Log; 
import android.widget.ImageView; 

/** 
* 在4.0系統中顯示網絡圖片 
* 
* @author Administrator 
* 
*/ 
public class DownLoadImage extends AsyncTask { 
ImageView imageView; 

public DownLoadImage(ImageView imageView) { 
// TODO Auto-generated constructor stub 
this.imageView = imageView; 
} 

@Override 
protected Bitmap doInBackground(String... urls) { 
// TODO Auto-generated method stub 
String url = urls[0]; 
Bitmap tmpBitmap = null; 
try { 
InputStream is = new java.net.URL(url).openStream(); 
tmpBitmap = BitmapFactory.decodeStream(is); 
} catch (Exception e) { 
e.printStackTrace(); 
Log.i("test", e.getMessage()); 
} 
return tmpBitmap; 
} 

@Override 
protected void onPostExecute(Bitmap result) { 
// TODO Auto-generated method stub 
imageView.setImageBitmap(result); 
} 
}
加載圖片方法:
String uriBaidu = "https://www.baidu.com/img/baidu_logo.gif";
new DownLoadImage((ImageView) findViewById(R.id.iv3)).execute(uriBaidu);