Android canvas to jpg

Question

I draw 2d images on the canvas using the following tutorial.

http://www.designerandroid.com/?cat=3

I want to save what ever dispalying in a canvas as a jpg image, how can i do it ??

Thanks in advance.

Answer 1

1. create an empty bitmap
2. create a new Canvas object and pass this bitmap to it
3. call view.draw(Canvas) passing it the canvas object you just created. Refer Documentation of method for details.
4. Use Bitmap.compress() to write the contents of the bitmap to an OutputStream, file maybe.

Pseudo code:

Bitmap  bitmap = Bitmap.createBitmap( view.getWidth(), view.getHeight(), Bitmap.Config.ARGB_8888);
Canvas canvas = new Canvas(bitmap);
view.draw(canvas); 
bitmap.compress(Bitmap.CompressFormat.JPEG, 100, fos);