Include C# stack trace with ANRs

[mattjohnsonpint]

Problem Statement

The Android and iOS embedded SDKs will capture ANRs / App Hangs for MAUI apps. However, they details they capture don't include anything that will help a .NET developer identify the source of the hang. The stack trace only includes the native code.

For example, writing a button click handler like this:

private void OnHangClicked(object sender, EventArgs e)
{
    while (true)
    {
        // Hang
    }
}

on Android shows an ANR like this:

and on IOS shows like this:

... neither of which are useful to get back to the infinite loop in the C# code.

Solution Brainstorm

We might be able to capture a managed stack trace manually and include it (as an attachment?) with the native error.

[mattjohnsonpint]

Note that some breadcrumbs are still useful here. I can still see the button click, for example. But if the actual code hanging was far from that click handler, we'd have no way to see it.

[mattjohnsonpint]

After discussion, we don't think this is feasible. If anyone has ideas though, feel free to reply here and we can consider them. Thanks!