Android：使用Asynctask從Web加載圖像如何用Asynctask替換以下代碼行？你如何從Asynctask“取回”位圖？謝謝。ImageView mChart = (ImageView) findViewById(R.id.Chart);String URL = "http://www...anything ...";mChart.setImageBitmap(download_Image(URL));public static Bitmap download_Image(String url) {         //---------------------------------------------------         Bitmap bm = null;         try {             URL aURL = new URL(url);             URLConnection conn = aURL.openConnection();             conn.connect();             InputStream is = conn.getInputStream();             BufferedInputStream bis = new BufferedInputStream(is);             bm = BitmapFactory.decodeStream(bis);             bis.close();             is.close();         } catch (IOException e) {             Log.e("Hub","Error getting the image from server : " + e.getMessage().toString());         }          return bm;         //---------------------------------------------------     }我想過這樣的事情：替換：mChart.setImageBitmap(download_Image(graph_URL));通過類似的東西：mChart.setImageBitmap(new DownloadImagesTask().execute(graph_URL));有一個(gè)簡單的解決方案嗎？我在這里弄錯(cuò)了嗎？