Canvas Bug - Image Reload hides arrangements

Kevinkun · January 4, 2024, 4:27am

Today I got a small issue with CanvasToBase64 extension, let me explain:

I add a horizontal Arrange (a button in it) at top, a canvas (fill parent) at middle, and another horizontal Arrangement at bottom:

And all codes here:

When I draw something on the canvas (the second time), the canvas will move upward, and make the first horizontalArrangement dispear.

I don't know it's the extension's problem or any others.

here is the aia:
CanvasBase64Test.aia (57.1 KB)

ps,
If I put the canvas in an arrangement (width/height fill parent), this will not happen.

TIMAI2 · January 4, 2024, 9:14am

Taking a look at this....

TIMAI2 · January 4, 2024, 9:22am

I tried it like this, and it still does it:

???

Removed all extensions, still does it

Setup new project, still does it

Looks like a canvas bug of some kind

cnvTest.aia (1.8 KB)

Kevinkun · January 4, 2024, 9:53am

same here:
Canvas will move to top, and hide the first component, and other labels/textbox.
this only happen when canvas under Screen directly, and width/height set to auto or fill parent.

Anke · January 4, 2024, 12:37pm

Try this one: CanvasBase64Test_2.aia (45.8 KB)
@Kevinkun

Kevinkun · January 4, 2024, 12:39pm

yes, but why?

Anke · January 4, 2024, 12:42pm

I think the question is for you.
Because it's obviously due to the extension.

TIMAI2 · January 4, 2024, 12:43pm

It is not. remove the extension and save the image to file and reload it. The problem is the same.

I already mentioned this above!

Anke · January 4, 2024, 12:48pm

Works too (without changing anything).

TIMAI2 · January 4, 2024, 12:50pm

Yes, there are workarounds, but the developer should not have to do this.

Anke · January 4, 2024, 12:53pm

Ah ok, I didn't notice that.