The memory of Bitmap decode

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I have some questions about Bitmap decode.

1. 
   

   When I try to decode Bitmap from a byte[] array, using BitmapFactory.decodeByteArray, what is the difference between the param byte[] and the mBuffer byte[] in result bitmap. when the function return will the bitmap still hold reference to the byte[] param?

   
   


2. 
   

   when I decode bitmap from a jpg file from sdcard using the following code:

   
   

   File file = new File(getExternalCacheDir(), "large.jpg"); bitmap = BitmapFactory.decodeFile(file.getAbsolutePath());

   
   

   if(mImageView != null){ mImageView.setImageBitmap(bitmap); }

   
   

   It works very well. This jpg file has 10800*5400 resolution and 13.82M size, the result bitmap is null, and there is no OOM error , but the bitmap not showing. How could that be ?

   
   

asked 2 mins ago

tinaJohnny

27

The memory of Bitmap decode