View.draw(canvas) leaves gray border around circular png set in ImageView

Question

I have an ImageView whose src is being set to a transparent square png with rounded corners.

I am calling View.draw(canvas) on the ImageView to take a screenshot. It leaves a gray border around the rounded corners like the image in the link

What can I do to remove the gray border?

Here is what I have tried..

        Bitmap viewBmp = Bitmap.createBitmap(wid, hgt, Bitmap.Config.ARGB_8888);
        Canvas canvas = new Canvas(viewBmp);
        if(isToMakeTransperant) canvas.drawColor(Color.TRANSPARENT);
        myView.draw(canvas);

I have already tried setting PorterDuff.Mode.CLEAR in drawColor() method. It didn't work.

edit : yes, the isToMakeTransperant boolean is always true. I have hard coded it to true for testing.

igarasi · Answer 1 · 2020-02-14T13:16:25.230

0

you can create transition bitmap

Bipmap bimap = Bitmap.createBitmap(BitmaoFactory.decodeResource(context.getResources(), R.color.transtion), 0, 0, width, height);

edited Feb 14 '20 at 13:16

answered Feb 14 '20 at 12:57

igarasi

137
7

just tried it. didn't work. image is same as in attached link. – Chandan Pednekar Feb 14 '20 at 13:07
it made the entire image transparent. nothing was shown. – Chandan Pednekar Feb 14 '20 at 13:24
https://stackoverflow.com/questions/4310489/how-do-i-remove-the-light-grey-border-around-my-canvas-widget – Amit pandey Feb 14 '20 at 13:34

View.draw(canvas) leaves gray border around circular png set in ImageView

1 Answers1