diff --git a/src/Android/Avalonia.Android/AndroidThreadingInterface.cs b/src/Android/Avalonia.Android/AndroidThreadingInterface.cs index e72f0aed90..42f75a27e1 100644 --- a/src/Android/Avalonia.Android/AndroidThreadingInterface.cs +++ b/src/Android/Avalonia.Android/AndroidThreadingInterface.cs @@ -14,6 +14,7 @@ namespace Avalonia.Android internal sealed class AndroidThreadingInterface : IPlatformThreadingInterface { private Handler _handler; + private static Thread s_uiThread; public AndroidThreadingInterface() { @@ -76,7 +77,25 @@ namespace Avalonia.Android EnsureInvokeOnMainThread(() => Signaled?.Invoke(null)); } - public bool CurrentThreadIsLoopThread => Looper.MainLooper.Thread.Equals(Java.Lang.Thread.CurrentThread()); + public bool CurrentThreadIsLoopThread + { + get + { + if (s_uiThread != null) + return s_uiThread == Thread.CurrentThread; + + var isOnMainThread = OperatingSystem.IsAndroidVersionAtLeast(23) + ? Looper.MainLooper.IsCurrentThread + : Looper.MainLooper.Thread.Equals(Java.Lang.Thread.CurrentThread()); + if (isOnMainThread) + { + s_uiThread = Thread.CurrentThread; + return true; + } + + return false; + } + } public event Action Signaled; } }