private static void StartAnimationLoop()
{
#if __ANDROID__
Action init = () =>
{
if (timeAnimator == null)
{
timeAnimator = new Android.Animation.TimeAnimator()
{
RepeatCount = Android.Animation.ValueAnimator.Infinite
};
timeAnimator.Time += (s, e) => OnFrameEvent(TimeSpan.FromMilliseconds(e.TotalTime));
}
timeAnimator.CurrentPlayTime = 0;
timeAnimator.Start();
};
if (Android.OS.Looper.MainLooper.IsCurrentThread)
{
init();
}
else
{
using (var h = new Android.OS.Handler(Android.OS.Looper.MainLooper))
{
h.Post(init);
}
}
#elif __IOS__
if (_displayLink == null)
{
_displayLink = CoreAnimation.CADisplayLink.Create(() => OnFrameEvent(TimeSpan.FromSeconds(_displayLink.Timestamp)));
_displayLink.AddToRunLoop(Foundation.NSRunLoop.Main, Foundation.NSRunLoop.NSDefaultRunLoopMode);
}
#elif NETFX_CORE
if (Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.HasThreadAccess)
{
CompositionTarget.Rendering += CompositionTargetRendering;
}
else
{
var _ = Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => CompositionTarget.Rendering += CompositionTargetRendering);
}
#else
if (System.Windows.Application.Current.Dispatcher.CheckAccess())
{
CompositionTarget.Rendering += CompositionTargetRendering;
}
else
{
System.Windows.Application.Current.Dispatcher.Invoke(() => CompositionTarget.Rendering += CompositionTargetRendering);
}
#endif
}
private static void StopAnimationLoop()
{
#if __ANDROID__
if (Android.OS.Looper.MainLooper.IsCurrentThread)
{
timeAnimator?.Cancel();
}
else
{
using (var h = new Android.OS.Handler(Android.OS.Looper.MainLooper))
{
h.Post(() => timeAnimator?.Cancel());
}
}
#elif __IOS__
_displayLink?.Invalidate();
_displayLink = null;
#elif NETFX_CORE
if (Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.HasThreadAccess)
{
CompositionTarget.Rendering -= CompositionTargetRendering;
}
else
{
var _ = Windows.ApplicationModel.Core.CoreApplication.MainView.CoreWindow.Dispatcher.RunAsync(Windows.UI.Core.CoreDispatcherPriority.Normal, () => CompositionTarget.Rendering -= CompositionTargetRendering);
}
#else
if (System.Windows.Application.Current.Dispatcher.CheckAccess())
{
CompositionTarget.Rendering -= CompositionTargetRendering;
}
else
{
System.Windows.Application.Current.Dispatcher.Invoke(() => CompositionTarget.Rendering -= CompositionTargetRendering);
}
#endif
}
