Hello.
I'm creating a custom polygon drawing on a panel.
And this area in the drawing and you want to save as a transparent PNG file.
Rectangle, circle and so on. I found examples.
But I was not successful.
Can you help?
1. Build a Path while the user moves his finger.
2. Create a new canvas with a mutable bitmap.
3. Clip the second canvas using the path you built.
4. Draw the first bitmap to the second canvas.