Android Question Custom Draw and Crop Image-PNG and Transparent

[Ydm]

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?

 

[Erel]

But I was not successful.

What is the problem?

 

[Ydm]

I'm doing a free drawing.
I draw the area you want to save as a transparent file.
In the example I tried to explain that I sent it.

 

[Ydm]

I'm trying to do is very clear. I want to save the selected area!

 

[Erel]

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.

 

[DonManfred]

I want to save the selected area!

Seems you are loving my Cat Charly

 

[Ydm]

I took a sample of your project. (Draw Line)
He was very helpful.

 

[Matteo Granatiero]

I took a sample of your project. (Draw Line)
He was very helpful.

how did you solve the crop button then?

 

[klaus]

Have a look HERE!