fix(DispatcherHelpers): Ensure correct dispatcher check (microsoft#1372)

rozele · web-flow · commit ef09c85e73c6 · 2017-09-13T15:33:19.000-04:00
Previously, the `IsOnDispatcher` check was for any dispatcher. Now, the dispatcher check is associated with the main window. Fixes microsoft#1371
diff --git a/ReactWindows/ReactNative/Bridge/DispatcherHelpers.cs b/ReactWindows/ReactNative/Bridge/DispatcherHelpers.cs
@@ -30,7 +30,7 @@ public static void AssertOnDispatcher()
         /// </returns>
         public static bool IsOnDispatcher()
         {
-            return CoreWindow.GetForCurrentThread()?.Dispatcher != null;
+            return CoreWindow.GetForCurrentThread()?.Dispatcher == CoreApplication.MainView.CoreWindow.Dispatcher;
         }
 
         /// <summary>

Original file line number	Diff line number	Diff line change
`@@ -30,7 +30,7 @@ public static void AssertOnDispatcher()`
`30`	`30`	`/// </returns>`
`31`	`31`	`public static bool IsOnDispatcher()`
`32`	`32`	`{`
`33`		`- return CoreWindow.GetForCurrentThread()?.Dispatcher != null;`
	`33`	`+ return CoreWindow.GetForCurrentThread()?.Dispatcher == CoreApplication.MainView.CoreWindow.Dispatcher;`
`34`	`34`	`}`
`35`	`35`
`36`	`36`	`/// <summary>`