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[英]Xamarin.Forms how to add app rating on Android and iOS?
[英]How can I add a lock screen to my Xamarin.Forms iOS app?
我正在嘗試將鎖定屏幕添加到我的iOS應用中,以便“ DidEnterBackground”將啟用鎖定“ OnActivated”。 我見過其他應用使用PIN碼執行此操作,只是想知道如何將該功能添加到我的應用中。
我正在使用Xamarin.Forms Xamarin Studio
我懷疑有很多方法可以做到這一點,這是一個建議。
實現一個帶有事件的服務IDidDeactivate,在解析器中注冊它,並在初始化窗體(App.cs)時掛接到該事件,並根據需要操縱導航,例如Navigation.PushModalAsync(new PinPad())
下面的代碼顯然是精簡的,希望您能理解
// this goes in the Forms project
public interface IDidDeactivate{
event EventHandler Deactivated;
event EventHandler Activated;
}
//this goes in the iOS project
public class WhoDeactivated: IDidDeactivate{
public event EventHandler Deactivated;
public event EventHandler Activated;
public void SendEvent (bool isActivated){
if (isActivated)
Activated(this, new EventArgs());
else
Dectivated(this, new EventArgs());
}
}
// back to the Forms project:
public class SensitivePage: ContentPage{
public SensitivePage(){
var deactivateService = Resolver.Resolve<IDidDeactivate>();
deactivateService.Deactivated += (s,e)=>
Navigation.PushModalAsync(new PinPadPage());
}
}
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