Question

I have this problem.I am using decodeByteArray to decode and decrypted data as an image and after that I am trying to get the actual size (in bytes , not width & height) of that image and show it in textview.

Bitmap bitmap = BitmapFactory.decodeByteArray(decryptedData , 0, decryptedData .length);    //decoding bytearrayoutputstream to bitmap
int i = bitmap.getRowBytes() * bitmap.getHeight() ;

TextView txt = (TextView) findViewById(R.id.text);
txt.setText(i);

The code is running without any errors,but the size is not showing up in the TextView.Any suggestions?

Answer 1

Please try this instead and tell me the result

Bitmap bitmap = BitmapFactory.decodeByteArray(decryptedData , 0, decryptedData .length); 
ByteArrayOutputStream stream = new ByteArrayOutputStream();
bitmap.compress(Bitmap.CompressFormat.PNG, 100, stream);
byte[] byteArray = stream.toByteArray();
TextView txt = (TextView) findViewById(R.id.text);
txt.setText(String.valueOf(stream.size()));