[Enhancement] Allow setting true/false accessibility text

[IeuanWalker]

Android is possible, but atm cant see a way of doing it on iOS

Android

Add the following method into the platform view to prevent the default announcement -

public override void SendAccessibilityEventUnchecked(AccessibilityEvent? e)
{
	//! important - used to override the default On/Off announcement when it is toggled. Now handled manually in the `SetIsToggled` method
	if (e?.EventType.Equals(EventTypes.ViewClicked) ?? false)
	{
		return;
	}

	base.SendAccessibilityEventUnchecked(e);
}

Then perform manual announcement on IsToggledChanged -

public void SetIsToggled()
{
	AnnounceForAccessibility(_switchView.IsToggled ? _textOn : _textOff);
}

iOS

Cant see a simple way of doing it. By the looks of it the only possible way is by overriding everything, including the 'Double tap to toggle setting'. And rather not handle that text my self as using the built in text will auto use the systems language.

https://stackoverflow.com/questions/52230673/how-can-i-make-an-arbitrary-uiaccessibilityelement-behave-like-a-uiswitch-for-vo