static partial void SetOrientationPartial(DisplayOrientations orientations)
{
var currentOrientationMask = UIApplication.SharedApplication
.StatusBarOrientation
.ToUIInterfaceOrientationMask();
var toOrientationMask = orientations.ToUIInterfaceOrientationMask();
//If we are not already in one of the requested orientations, we need to force the application to rotate.
if (!toOrientationMask.HasFlag(currentOrientationMask))
{
//Rotate to the most preferred orientation that is requested
//e.g. if our mask is Portrait | PortraitUpsideDown, we prefer to intially rotate to Portrait rather than PortraitUpsideDown
var toOrientation = PreferredOrientations.FirstOrDefault(ori => toOrientationMask.HasFlag(ori)).ToUIInterfaceOrientation();
UIDevice.CurrentDevice
.SetValueForKey(
new NSNumber((int)toOrientation),
new NSString("orientation")
);
UIApplication.SharedApplication.SetStatusBarOrientation(toOrientation, false);
}
//Forces the rotation if the physical device is being held in an orientation that has now become supported
UIViewController.AttemptRotationToDeviceOrientation();
}
public void SubscribePrismEvent()
{
IContainerProvider containerProvider = App.Current.Container;
IEventAggregator eventAggregator = containerProvider.Resolve <IEventAggregator>();
eventAggregator.GetEvent <CustomScreenOrientationEvent>().Subscribe(x =>
{
ScreenOrientation = x.CustomScreenOrientation;
NSNumber n;
NSString key = new NSString("orientation");
if (x.CustomScreenOrientation == CustomScreenOrientation.Unspecified)
{
n = new NSNumber((int)UIInterfaceOrientation.Unknown);
}
else if (x.CustomScreenOrientation == CustomScreenOrientation.UserPortrait)
{
n = new NSNumber((int)UIInterfaceOrientation.Portrait);
}
else
{
n = new NSNumber((int)UIInterfaceOrientation.LandscapeLeft);
}
UIDevice.CurrentDevice.SetValueForKey(
new NSNumber((int)n),
new NSString("orientation"));
UIViewController.AttemptRotationToDeviceOrientation();
DispatchQueue.MainQueue.DispatchAsync(() =>
{
});
});
}
private void SetDeviceOrientation(DeviceOrientations orientation)
{
DispatchQueue.MainQueue.DispatchAsync(() =>
{
UIDevice.CurrentDevice.SetValueForKey(
NSObject.FromObject(Convert(orientation)),
new NSString("orientation"));
UIViewController.AttemptRotationToDeviceOrientation();
});
}
internal static void ResetDeviceOrientation(DeviceOrientation supportedOrientation)
{
switch (supportedOrientation)
{
case DeviceOrientation.AllLandscapes:
case DeviceOrientation.LandscapeLeft:
SetDeviceOrientation(UIInterfaceOrientation.LandscapeLeft);
break;
case DeviceOrientation.LandscapeRight:
SetDeviceOrientation(UIInterfaceOrientation.LandscapeRight);
break;
case DeviceOrientation.AllPortraits:
case DeviceOrientation.Portrait:
SetDeviceOrientation(UIInterfaceOrientation.Portrait);
break;
case DeviceOrientation.PortraitUpsideDown:
SetDeviceOrientation(UIInterfaceOrientation.PortraitUpsideDown);
break;
}
UIViewController.AttemptRotationToDeviceOrientation();
}
