iPhone 模拟器（检测不同的设备模拟器）

Question

With the upcoming release of the iPhone X, I want to be able to display a different UI layout for the iPhone X (due to round corners and bottom line, which kinda works as the home button replacement).

I am using the following nuget package to retrieve the model information: https://github.com/dannycabrera/Get-iOS-Model

It works perfectly fine, but all the different simulators (iPhone 7, 8, X) only come up as Simulator.

Is there a way to differentiate between the different iPhone Simulators in code within my Xamarin mobile app?

Many thanks, Nik

Answer 1

Since the simulator is a weird animal, the screen size is as good as any other test after the other tests for iOS version and the availability of FaceID on a physical device:

public bool iPhoneX()
{
    var version = new Version(ObjCRuntime.Constants.Version);
    if (version < new Version(11, 0))
        return false;
    if (ObjCRuntime.Runtime.Arch == ObjCRuntime.Arch.DEVICE)
    {
        using (var context = new LocalAuthentication.LAContext())
        {
            if (context.BiometryType == LABiometryType.TypeFaceId)
                return true;
        }
        return false;
    }
    if (UIScreen.MainScreen.PreferredMode.Size.Height == 2436)
        return true;
    return false;
}

Or an optimized property for repeated (binding) calls:

static bool? iPhoneX;
public bool isPhoneX
{
    get
    {
        if (iPhoneX == null)
        {
            if (new Version(ObjCRuntime.Constants.Version) < new Version(11, 0))
                iPhoneX = false;
            else
            {
                if (ObjCRuntime.Runtime.Arch == ObjCRuntime.Arch.DEVICE)
                {
                    using (var context = new LocalAuthentication.LAContext())
                    {
                        iPhoneX = context.BiometryType == LABiometryType.TypeFaceId;
                    }
                }
                else
                    iPhoneX = UIScreen.MainScreen.PreferredMode.Size.Height == 2436;
            }
        }
        return (bool)iPhoneX;
    }
}

Answer 2

您应该简单地使用安全区域布局指南，它会自动增加 iPhone X 上的顶部/底部边距。

Answer 3

As others have pointed out you should definitely be using the Safe Area Layout Guide .

If you really really have a need to detect the model then look for the SIMULATOR_MODEL_IDENTIFIER environment variable. iPhone X will return iPhone10,3 .

let model = ProcessInfo().environment["SIMULATOR_MODEL_IDENTIFIER"]