弹窗

包括通知类弹窗和选择类弹窗，以下是安卓手机的显示效果

关键代码

DisplayAlert("Alert", "You have been alerted", "OK");

var answer = await DisplayAlert("Question?", "Would you like to play a game", "Yes", "No");

var action = await DisplayActionSheet("ActionSheet: Send to?", "Cancel", null, "Email", "Twitter", "Facebook");

示例代码

https://github.com/zLulus/NotePractice/blob/dev3/Xamarin.Forms/XamarinDemo/XamarinDemo/XamarinDemo/PopUps/PopUpsDemo.xaml.cs

参考资料

https://docs.microsoft.com/en-us/xamarin/xamarin-forms/app-fundamentals/navigation/pop-ups