根据图片的网络URL获取Bitmap

/**
* 根据一个网络连接(String)获取bitmap图像
*
* @param imageUri
* @return
* @throws MalformedURLException
*/
public static Bitmap getbitmap(String imageUri) {
Log.v(TAG, "getbitmap:" + imageUri);
// 显示网络上的图片
Bitmap bitmap = null;
try {
URL myFileUrl = new URL(imageUri);
HttpURLConnection conn = (HttpURLConnection) myFileUrl
.openConnection();
conn.setDoInput(true);
conn.connect();
InputStream is = conn.getInputStream();
bitmap = BitmapFactory.decodeStream(is);
is.close();

Log.v(TAG, "image download finished." + imageUri);
} catch (OutOfMemoryError e) {
e.printStackTrace();
bitmap = null;
} catch (IOException e) {
e.printStackTrace();
Log.v(TAG, "getbitmap bmp fail---");
bitmap = null;
}
return bitmap;
}