title: Convert immutable Bitmap file to mutable Bitmap
body: <p>A:</p>
  
  <pre><code> Bitmap immutableBmp= BitmapFactory.decodeResource(getApplicationContext().getResources(),R.drawable.sample);
   mutableBitmap=immutableBmp.copy(Bitmap.Config.ARGB_8888, true);
  </code></pre>
  
  <p>B: </p>
  
  <pre><code>Bitmap immutableBmp= BitmapFactory.decodeFile(filePath);
  mutableBitmap=immutableBmp.copy(Bitmap.Config.ARGB_8888, true);
  </code></pre>
  
  <p>C:</p>
  
  <pre><code>BitmapFactory.Options options = new BitmapFactory.Options();
  options.inMutable=true;
  myBitmap=BitmapFactory.decodeFile(filePath,options);
  </code></pre>
  
  <p>A works but B and C don't. I am trying to convert an immutable bitmap to mutable. It works on resource images but not file images. What's the problem? </p>