[Android] TimePicker focus & unfocus events

[kubaflo]

Issues Fixed

Fixes #26908

[dotnet-policy-service]

Hey there @kubaflo! Thank you so much for your PR! Someone from the team will get assigned to your PR shortly and we'll get it reviewed.

[mattleibow]

@tj-devel709 @PureWeen this PR looks all nice, but since it touches focus and we have all sorts of bits of code, maybe there is a better person to review the focus changes?

[mattleibow]

Why is this needed here? The maui time p;icker is a text box, so that should work with normal focus commands?

Entry does this:

maui/src/Core/src/Handlers/Entry/EntryHandler.Android.cs

Lines 152 to 156 in 46096ff

	static void MapFocus(IEntryHandler handler, IEntry entry, object? args)
	{
	if (args is FocusRequest request)
	handler.PlatformView.Focus(request);
	}

I also see we double-override it in Controls:

maui/src/Controls/src/Core/Entry/Entry.Mapper.cs

Lines 23 to 29 in 46096ff

	#if IOS || ANDROID
	EntryHandler.Mapper.AppendToMapping(nameof(VisualElement.IsFocused), InputView.MapIsFocused);
	#endif
	#if ANDROID
	EntryHandler.CommandMapper.PrependToMapping(nameof(IEntry.Focus), InputView.MapFocus);
	#endif

So basically, Focus support is all strage...

[kubaflo]

I've added it so that focus is activated when the dialog is opened. Without it the control never recognises its focus status

[mattleibow]

/azp run

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Azure Pipelines successfully started running 3 pipeline(s).

[PureWeen]

/azp run

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Azure Pipelines successfully started running 3 pipeline(s).