setDrawingCacheEnabled doesn't work on LinearLayout

Question

So, basically i have next piece of code:

  llPhotoTest.setDrawingCacheEnabled(false);
  llPhotoTest.setDrawingCacheEnabled(true);
  ... 
  llPhotoTest.getDrawingCache();

First time everything is ok, but second time cached picture stay the same. I've seen a lot of solutions for this problem but nothing works for me. I would appreciate any help or suggestion. Thank you in advance

I've tried:

llPhotoTest.setDrawingCacheEnabled(true);
llPhotoTest.getDrawingCache();
llPhotoTest.setDrawingCacheEnabled(false);

Also I've tried

llPhotoTest.buildDrawingCache();
llPhotoTest.getDrawingCache();
llPhotoTest.destroyDrawingCache();

Still same picture :(

There is a layout bounds

Answer 1

Thanks to everybody! I found solution, that's was an Issue. llPhotoTest.setLayerType(View.LAYER_TYPE_SOFTWARE, null);

From documentation http://developer.android.com/reference/android/view/View.html#LAYER_TYPE_SOFTWARE:

Indicates that the view has a software layer. A software layer is backed by a bitmap and causes the view to be rendered using Android's software rendering pipeline, even if hardware acceleration is enabled.

Answer 2

That's not a good way to display a bitmap.

Use an ImageView, not a LinearLayout and call ImageView.setImageBitmap(Bitmap bm)