RotateTo & ScaleTo on Android seems to create a funny rotation/scale.

[FreakyAli]

Description

The default animation RotateTo method seems to be ignoring the AnchorX and AnchorY property when it's set to 0.5 by default and because of this, it performs a funny rotation on Android. (iOS works as expected).

I have only tested with Android and iOS not sure if this is the case in other platforms as well.

Check the Attached Gif to see how it is instead of how it should be.

Steps to Reproduce

• Create a Maui app
• On a VisualElement try using the RotateTo method
• It seems to ignore the default anchors.

Expected Behavior	Actual Behavior

Link to public reproduction project repository

https://github.com/FreakyAli/Maui.FreakyControls/blob/72e03aa3c59174efe6e1f0d061c6d2a5de6f7de8/MAUI.FreakyControls/MAUI.FreakyControls/Shared/FreakyCheckbox/FreakyCheckbox.cs#L91

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

Android 12

Did you find any workaround?

Yes, if you were to add the below code before calling RotateTo, it does work.

if (DevicePlatform.Android == DeviceInfo.Platform)
    skiaView.AnchorY = skiaView.AnchorX = 0.501;
await skiaView.RotateTo(90, 150);

Now here you are setting the Anchor to a value which is a slight bit higher than the default, but this will be invisible to the naked eye.

Let me know if anything else is needed, Thanks!

Relevant log output

No response

[FreakyAli]

It seems that even ScaleTo is affected by the AnchorX/Y

[ghost]

We've moved this issue to the Backlog milestone. This means that it is not going to be worked on for the coming release. We will reassess the backlog following the current release and consider this item at that time. To learn more about our issue management process and to have better expectation regarding different types of issues you can read our Triage Process.

[rmarinho]

@jsuarezruiz have you saw this somewhere?

[jsuarezruiz]

Need to do more test with a SKCanvasView, but cannot reproduce the issue with other Views.

[FreakyAli]

Need to do more test with a SKCanvasView, but cannot reproduce the issue with other Views.

If you could check it in the provided GitHub link and comment the workaround you will reproduce it, i have tried it multiple times and it is always reproducible

[FreakyAli]

@jsuarezruiz I have checked with the latest version of everything now and its still reproducible I am guessing this is an issue with SKCanvas, you might wanna look into that.

[Zhanglirong-Winnie]

Verified this issue with Visual Studio Enterprise 17.8.0 Preview 1.0(.NET8). Not repro on iOS platform with sample project. It can be debugged successfully on Android, but there is an error in selecting CheckboxsView. Maui.FreakyControls-master.zip iOS： Android:

[FreakyAli]

@Zhanglirong-Winnie I do not have access to .Net 8 pre as of right now unfortunately so I cannot confirm if this is fixed or not, but I can confirm that with .net 7 this is still an issue i just checked it earlier and not to mention the same issue occurred a couple days ago in another project of mine

[FreakyAli]

Just confirmed this is still an issue with .NET 8 GA @Zhanglirong-Winnie @jsuarezruiz

[Manish-Pradhan-FP]

Yes this is still an issue when doing VisualElement.RotateTo(-180), it will NOT use the center of the VisualElement for its rotation. Eg: xamButtonElement.RotateTo(-180, 200)

Are there any workarounds for this? Its a significant bug for us.

[FreakyAli]

@Manish-Pradhan-FP I have added a workaround in the bug itself