Now I'm using canvas.drawPath(Path path, Paint paint) to draw a path
which is created by user with a specified paint.
And before closing this app ( like PhotoShop app), I want to save this
Path and Paint. For the next time. So, user can start at their
Some said that they should be converted to bytearray  and use
FileOutputStream to write it to file.
But I don't know how to do that.
Please, help me. I really really need your advice.
Thanks so much.