内存泄漏发生在Xamarin Forms Android使用位图时

Question

在Xamarin Forms Android中使用位图时，我在加载比通常大小更高的图像时出现内存不足错误。 （）;（）;}};}};}}};}};}}; tempView = imageView; } -------- } 公共静态位图getBitmapFromView（最终查看视图）{

 view.setLayoutParams(new LayoutParams(view.getWidth(), 
       view.getHeight())); 
     view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 
       MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 
     view.layout(0, 0, view.getMeasuredWidth(), view.getMeasuredHeight()); 
     final Bitmap bitmap_ = Bitmap 
       .createBitmap(view.getMeasuredWidth(), 
         view.getMeasuredHeight(), 
         Bitmap.Config.ARGB_8888); 
     Canvas c = new Canvas(bitmap_); 
     view.draw(c); 

     return bitmap_; 

    } 

    Bitmap getBitmapFromViewUpdated(final View view) { 
     if (view.getWidth() == 0 || view.getHeight() == 0) 
      view.setLayoutParams(new LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, 
        ViewGroup.LayoutParams.MATCH_PARENT)); 
     else 
      view.setLayoutParams(new LayoutParams(view.getWidth(), 
        view.getHeight())); 
     view.measure(MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED), 
       MeasureSpec.makeMeasureSpec(0, MeasureSpec.UNSPECIFIED)); 
     view.layout(0, 0, viewWidth, viewHeight); 
     final Bitmap bitmap_; 
     if(viewWidth>0 && viewHeight>0) { 
      bitmap_ = Bitmap 
        .createBitmap(viewWidth, 
          viewHeight, Bitmap.Config.ARGB_8888); 
     } 
     else 

     { 
      bitmap_= Bitmap 
        .createBitmap(view.getMeasuredWidth(), 
          view.getMeasuredHeight(), 
          Bitmap.Config.ARGB_8888); 
     } 
     Canvas c = new Canvas(bitmap_); 
     view.draw(c); 

     return bitmap_; 

    } 

} 

我曾尝试安卓largeHeap = TRUE，而使用可实现的结果，但我需要知道如何解决位图调整大小。

在此先感谢...

Answer 1

您可以检查有效的区域管理这两个环节中xamarin安卓

https://forums.xamarin.com/discussion/5716/disposing-of-bitmaps-properly

https://developer.xamarin.com/recipes/android/resources/general/load_large_bitmaps_efficiently/

好运！