Add Back press event to avoid double back to exit

[pazunino]

Hi,
because my app is used in the field press twice back to exit is not an option.
Based on this [https://stackoverflow.com/a/52366043], I added these piece of code to ExtendedEntry and ExtendedEntryRenderer.

In ExtendedEntry
public static readonly BindableProperty BackPressProperty=BindableProperty.Create("BackPress", typeof(EventHandler), typeof(ExtendedEntry), null); public event EventHandler BackPress; public bool OnBack() { EventHandler eventHandler = this.BackPress; eventHandler?.Invoke((object)this, EventArgs.Empty); return eventHandler != null; }

In ExtendedEntryRenderer
public override bool DispatchKeyEventPreIme(KeyEvent e) { if(!_softKeboardService.IsKeyboardVisible() && e.KeyCode == Keycode.Back) { if(Element != null && Element is ExtendedEntry) { if (((ExtendedEntry)Element).OnBack()); return true; } } return base.DispatchKeyEventPreIme(e); }
Then in the event handler you can put a Navigation action or a message.
If you consider this addition useful you can add it.
Regards,
Pedro.