internal void OnPageAppearing(Page page) => PageAppearing?.Invoke(this, page);
void OnPageAppearing(object sender, EventArgs e) { PageAppearing?.Invoke(sender, e); }
internal void OnPageAppearing(Page page) => PageAppearing?.Invoke(this, page);
void OnPageAppearing(object sender, EventArgs e) { PageAppearing?.Invoke(sender, e); }