private FrameworkElement GetNativeSplashScreen(SplashScreen splashScreen)
{
try
{
var infoPlistPath = NSBundle.MainBundle.PathForResource("Info", "plist");
var infoPlistDictionary = new NSDictionary(infoPlistPath);
var storyboardName = infoPlistDictionary["UILaunchStoryboardName"].ToString();
var storyboard = UIKit.UIStoryboard.FromName(storyboardName, null);
var launchScreenViewController = storyboard.InstantiateInitialViewController();
var launchScreenView = launchScreenViewController.View;
// We use a Border to ensure proper layout
var element = new Border
{
Child = VisualTreeHelper.AdaptNative(launchScreenView),
// We set a background to prevent touches from going through
Background = SolidColorBrushHelper.Transparent
};
return(element);
}
catch (Exception e)
{
typeof(ExtendedSplashScreen).Log().LogError(0, e, "Error while getting native splash screen.");
return(null);
}
}
/// <summary>
/// Add a native view to a <see cref="UIElementCollection"/>. It will be wrapped in a <see cref="FrameworkElement"/>-derived container to satisfy the type constraints of <see cref="UIElementCollection"/>.
/// </summary>
/// <remarks>This method is present to support collection initializer syntax for native views.</remarks>
public static void Add(this UIElementCollection uiElementCollection, _View view)
{
if (uiElementCollection is null)
{
throw new ArgumentNullException(nameof(uiElementCollection));
}
if (view is UIElement uiElement)
{
uiElementCollection.Add(uiElement);
}
var wrapper = VisualTreeHelper.AdaptNative(view);
uiElementCollection.Add(wrapper);
}
private FrameworkElement GetNativeSplashScreen(SplashScreen splashScreen)
{
try
{
var activity = ContextHelper.Current as Activity;
// Get the theme's windowBackground (which we use as splash screen)
var attribute = new Android.Util.TypedValue();
activity?.Theme.ResolveAttribute(Android.Resource.Attribute.WindowBackground, attribute, true);
var windowBackgroundResourceId = attribute.ResourceId;
// Get the splash screen size
var splashScreenSize = GetSplashScreenSize(activity);
// Create the splash screen surface
var splashView = new Android.Views.View(activity);
splashView.SetBackgroundResource(attribute.ResourceId);
// We use a Canvas to ensure it's clipped but not resized (important when device has soft-keys)
var element = new Canvas
{
// We set a background to prevent touches from going through
Background = SolidColorBrushHelper.Transparent,
// We use a Border to ensure proper layout
Children =
{
new Border()
{
Width = splashScreenSize.Width,
Height = splashScreenSize.Height,
Child = VisualTreeHelper.AdaptNative(splashView),
}
},
};
return(element);
}
catch (Exception e)
{
typeof(ExtendedSplashScreen).Log().LogError(0, e, "Error while getting native splash screen.");
return(null);
}
}
private void SetVideoSurface(IVideoSurface videoSurface)
{
this.Child = VisualTreeHelper.AdaptNative(videoSurface as SurfaceView);
}