Xamarin Forms 应用程序在 iOS 设备上出现闪屏后崩溃

Question

My Xamarin Forms App works fine in Android devices, but when trying do deploy on a real iOS device it crashes after the splash screen, I said real because I can run without any problem on the simulator.

I try to debug the App on a real iOS device, and I found that the crash happen when the App try to load the XAML file on:

private void InitializeComponent() {
        global::Xamarin.Forms.Xaml.Extensions.LoadFromXaml(this, typeof(LoginPage));

Please take a look at the debug steps:

Regards, Pedro

Answer 1

I found the problem. The [XamlCompilation(XamlCompilationOptions.Compile)] was missing on the code behind C# file, and because of that some methods used by click events of controls on the XAML were not available. But still can't find explanation for this not happening on the simulator!

Answer 2

In case it is a help to anyone, I had the same symptom for a different reason. I am using single page simple navigation in the app in question setting MainPage to the current page in the app. After few days of troubleshooting, happened to notice the checkbox in Application section of info.plist, "Supports Multiple Windows" was checked. Unchecking this restored my app to working condition. There were no diagnostic messages that seemed related, just a crash after splash in release mode, and a black screen in debug mode.