c# android 全局捕获未处理异常

[Application]
    public class MyApp : Application
    {
        public MyApp(IntPtr javaReference, JniHandleOwnership transfer)
            : base(javaReference, transfer) { }

        public override void OnCreate()
        {
            base.OnCreate();
            AndroidEnvironment.UnhandledExceptionRaiser += MyApp_UnhandledExceptionHandler;
        }

        void MyApp_UnhandledExceptionHandler(object sender, RaiseThrowableEventArgs e)
        {

        }

        protected override void Dispose(bool disposing)
        {
            AndroidEnvironment.UnhandledExceptionRaiser -= MyApp_UnhandledExceptionHandler;
            base.Dispose(disposing);
        }
    }