android - 如何处理内存不足错误？

Question

我正在使用以下代码在我的 ImageView 中显示位图。当我尝试加载尺寸大于 1.5MB 的图像时，它给我错误。有人建议我解决方案吗？

  try {  

                         URL aURL = new URL(myRemoteImages[val]);  
                         URLConnection conn = aURL.openConnection(); 

                         conn.connect();  
                         InputStream is = null;
                         try
                         {
                             is= conn.getInputStream();  
                         }catch(IOException e)
                         {


                             return 0;

                         }
                         int a=  conn.getConnectTimeout();
                         BufferedInputStream bis = new BufferedInputStream(is);  

                         Bitmap bm;
                         try
                         {
                             bm = BitmapFactory.decodeStream(bis);
                         }catch(Exception ex)
                         {
                             bis.close(); 
                             is.close();  
                             return 0; 
                         }
                         bis.close();  
                         is.close();  
                         img.setImageBitmap(bm);

                    } catch (IOException e) {  
                        return 0;
                    }  

                    return 1;

日志猫:

06-14 12:03:11.701: ERROR/AndroidRuntime(443): Uncaught handler: thread main exiting due to uncaught exception
06-14 12:03:11.861: ERROR/AndroidRuntime(443): java.lang.OutOfMemoryError: bitmap size exceeds VM budget
06-14 12:03:11.861: ERROR/AndroidRuntime(443):     at android.graphics.BitmapFactory.nativeDecodeStream(Native Method)

Answer 1

您应该使用 inSampleSize 选项进行解码以减少内存消耗。 Strange out of memory issue while loading an image to a Bitmap object

JustDecodeBounds 中的另一个选项可以帮助您找到正确的 inSampleSize 值 http://groups.google.com/group/android-developers/browse_thread/thread/bd858a63563a6d4a