网络获取bitmap

刷新adaptergridAdapter.notifyDataSetChanged();
通过地址获取bigmap

URL url=new URL("路径");            HttpURLConnection urlConnection = (HttpURLConnection) url.openConnection();            urlConnection.setDoInput(true);            urlConnection.setConnectTimeout(6*1000);            urlConnection.connect();            InputStream inputStream = urlConnection.getInputStream();            //用bitmap名字获取bitmap            Bitmap bitmap = BitmapFactory.decodeStream(inputStream);            inputStream.close();            return bitmap;