Border margin issue

[tranb3r]

Description

I'm trying to use Border in replacement on Frame.
Border and Frame should look the same in this example, but it's not the case.

Here is what it looks like on Android: margin of Border seems wrong.

Here is what it looks like on iOS: thickness of Border seems wrong.

This issue is similar to #7764, however the proposed workaround does not work properly.

Steps to Reproduce

1. Create a maui app
2. Add a Border with a Margin
3. Compare results both on Android and iOS
4. Compare to a similar design using a Frame

Link to public reproduction project repository

https://github.com/tranb3r/Issues/tree/main/MauiAppBorderMargin

Version with bug

7.0 (current)

Last version that worked well

Unknown/Other

Affected platforms

iOS, Android

Affected platform versions

iOS and Android

Did you find any workaround?

A workaround could consist in adjusting Margin with negative values (on Android).
However, the magical number to set seems to depend on display resolution, so it's not a viable workaround.

Relevant log output

No response

[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.

[tranb3r]

Is this going to be fixed? Or is there any workaround?

[homeyf]

Verified this issue with Visual Studio Enterprise 17.7.0 Preview 1.0. Can repro on android platform with above project.
https://github.com/tranb3r/Issues/tree/main/MauiAppBorderMargin

[tranb3r]

I've tested my repro with net8-pre5, this issue is still here.
Is it going to be fixed in net8?
Thanks

[dotMorten]

I'm curious if this is related to #15339 that was just fixed?
If anything it had quite a few border issues on android PRs associated with it.

[tranb3r]

This is what I get on Android with the latest preview (8.0.0-preview.7.8842).

Border Margin seems to have been fixed, but Thickness is still wrong, and RoundRectangle CornerRadius does not seem to work anymore :(

[daltzctr]

Preview 7 seems to have broken thickness on Windows as well. There is clipping on the bottom and right of a border. This is especially noticable on larger thickness values.

[tranb3r]

Any update with RC1 ?

[tranb3r]

With net8-rc.1, most Border issues I was observing previously have been fixed.
However, on Android, there remains a small margin around Border (1px?).
I've updated my repro to demonstrate the issue: the small margin is the red line around Border.