TapGestureRecognizer doesn't fire Tapped event on child controls

Description

I added a TapGestureRecognizer to a custom ContentView which contains several other controls. I wondered why the Tapped event is not getting fired on Android when I tap on the ContentView. The same code is working on Windows.

I figured out, that when I add the TapGestureRecognizer to a child control which occupies alot of sapce the Tapped event gets fired. From my observation it looks like that the Tapped Event / TapGestureRecognizer will not be forwarded to its child controls.

This bug may be related to #6644 , #7466, #8004

Steps to Reproduce

1. Create dotnet maui default project
2. Add ContentView
3. Add to the ContentView serveral controls
4. register/add TapGestureRecognizer to ContentView.
5. Tap on it and check if breakpoint gets hit on Tapped event
6. Event is not fired

In the attached project TapGestureRecognizer_doesnt_fire_Tapped_event_on_child_controls.zip the ContentView contains the following control hierarchy:

• ContentView
  • Grid
    • Frame (occupies quite a lot of sapce)
      • …

Adding the tapGestureRecognizer directly to the content (which is of type ContentView) will not fire the Tapped event. If you comment line control = ((content as ContentView).Children[0] as Grid).Children[0] as View in the tapGestureRecognizer gets added directly on the Frame. Tapping now on the ContentView will fire the Tapped event.

    private void MainPage_Loaded(object sender, EventArgs e)
    {
        View control = content; //content = ContentView
        //control = ((content as ContentView).Children[0] as Grid).Children[0] as View;  //Frame
        var tapGestureRecognizer = new TapGestureRecognizer();
        tapGestureRecognizer.Parent = control;
        tapGestureRecognizer.Tapped += TapGestureRecognizer_Tapped;
        control.GestureRecognizers.Add(tapGestureRecognizer);
    }

Version with bug

6.0.312

Last version that worked well

Unknown/Other

Affected platforms

Android

Affected platform versions

android

Did you find any workaround?

Register the TapGestureRecognizer on all sub controls of the ContentView.

Relevant log output

No response

[mfe-]

@jfversluis The TapGestureRecognizer sample works on windows. The event TapGestureRecognizer_Tapped will be hit if you touch the provided area:

I noticed that I forgot to remove some StaticResources. I removed them from the sample, and updated the example.

MauiApp1.zip

In addition I added for android an screenshot. Hope it helps

For the android platform you would need to comment in: control = ((content as ContentView).Children[0] as Grid).Children[0] as View; //Frame

Edit: As I dont own an Iphone I don’t know the status of the issue on ios

[XamlTest]

Verified this on Visual Studio Enterprise 17.6.0 Preview 7.0. Repro on Android 13.0 with below Project: 8121.zip

Event TapGestureRecognizer_Tapped will be hit on Windows, but not on Android.