Android Question Unwanted Pixel appearance at the corners

[Scantech]

Why does the corners have different color dots?

I can't figure this out yet.

Click "not used" button to display the large gauge

 

[klaus]

What corner dots are you speaking of?

 

[Scantech]

I have circled with red color to point out the dots.

 

[klaus]

It depends also on the device screen resolution.
This is the corner on my Samsung Galaxy S8.

I suppose that the problem is due to the anti aliasing.
From what I know, it cannot be disabled.
BitmapCreator has a ReplaceSemiTransparentPixels(NewColor As Int, Rect As B4XRect) method.
Not sure if it will solve your problem.

 

[Scantech]

that did not work(replacesemiTransparentPixels)

 

[Erel]

I see it too after I take a screenshot and enlarge it. It is not noticeable on the device directly.

If you can reproduce it in a small project then I can further investigate it.

 

[Scantech]

Here you go. Emulator will be a great way to see it or 480x800 screen resolution

 

[Erel]

You are calling DrawRectRounded with corner radius set to 0. This case is easy to fix. DrawRectRounded should call DrawRect.
Does it happen in other cases where the radius > 1 ?

 

[Scantech]

Does it happen in other cases where the radius > 1 ?

No it is fine greater then 0. I changed it to DrawRect2 and its ok. Thanks

 

[Erel]

I will update BitmapCreator to draw with DrawRect when the radius < 1.