xamarin 输入框被手机设备软键盘遮挡问题解决

https://www.5axxw.com/questions/content/mdnro5

<Application xmlns="http://xamarin.com/schemas/2014/forms"
         xmlns:x="http://schemas.microsoft.com/winfx/2009/xaml" 
         x:Class="KeyboardSample.App"
         xmlns:android="clr-namespace:Xamarin.Forms.PlatformConfiguration.AndroidSpecific;assembly=Xamarin.Forms.Core"
         android:Application.WindowSoftInputModeAdjust="Resize">