android中网络图片的展示

 public static Bitmap returnBitMap(String url) {		URL myFileUrl = null;		Bitmap bitmap = null;		try {			myFileUrl = new URL(url);		} catch (MalformedURLException e) {			e.printStackTrace();		}		try {			HttpURLConnection conn = (HttpURLConnection) myFileUrl.openConnection();			conn.setDoInput(true);			conn.connect();			InputStream is = conn.getInputStream();			bitmap = BitmapFactory.decodeStream(is);			is.close();		} catch (IOException e) {			e.printStackTrace();		}		return bitmap;	}