我创建了一个Xamarin Forms应用程序,该应用程序使用Azure Active Directory对Azure移动服务进行身份验证。这适用于我的WinPhone应用程序,但它不适用于iOS设备。它适用于iOS模拟器,但不适用于实际设备。我已将其缩小到导致应用程序在设备上崩溃的确切行。它位于AppDelegate.cs文件中,它是" App.Init(this)"线。它不会抛出任何错误(至少不是我能看到的)。它在模拟器中运行良好,它可以在设备上进行部署和安装。但是,当您单击设备上的应用程序来运行它时,它会显示启动画面,然后只需退出。
我遵循了https://docs.microsoft.com/en-us/azure/app-service-mobile/app-service-mobile-xamarin-forms-get-started-users的文档,这篇文章非常复杂,其他一切都有效。
任何人都可以了解为什么" App.Init(this)"会在iOS AppDelegate.cs文件中失败吗?它正在实施IAuthenticate(完整代码如下)
[Register("AppDelegate")]
public partial class AppDelegate : global::Xamarin.Forms.Platform.iOS.FormsApplicationDelegate, IAuthenticate
{
//
// This method is invoked when the application has loaded and is ready to run. In this
// method you should instantiate the window, load the UI into it and then make the window
// visible.
//
// You have 17 seconds to return from this method, or iOS will terminate your application.
//
public override bool FinishedLaunching(UIApplication app, NSDictionary options)
{
global::Xamarin.Forms.Forms.Init();
Microsoft.WindowsAzure.MobileServices.CurrentPlatform.Init();
//App.Init(this); //If I uncomment this line, the app crashes. Leaving this line commented, the app doesn't every do the login/authentication.
LoadApplication(new App());
return base.FinishedLaunching(app, options);
}
// Define a authenticated user.
private MobileServiceUser user;
public async Task<bool> Authenticate()
{
var success = false;
var message = string.Empty;
try
{
// Sign in with Facebook login using a server-managed flow.
if (user == null)
{
user = await FormDataManager.DefaultManager.CurrentClient
.LoginAsync(UIApplication.SharedApplication.KeyWindow.RootViewController,
MobileServiceAuthenticationProvider.WindowsAzureActiveDirectory);
if (user != null)
{
message = string.Format("You are now signed-in as {0}.", user.UserId);
success = true;
}
}
}
catch (Exception ex)
{
message = ex.Message;
}
// Display the success or failure message.
UIAlertView avAlert = new UIAlertView("Sign-in result", message, null, "OK", null);
avAlert.Show();
return success;
}
}
答案 0 :(得分:0)
azure docs将接口分离为自己的依赖服务,但这看起来不太清楚。
很高兴你把它整理好了。要提供其他参考,请查看http://aka.ms/zumobook 上的书籍