IOS: Only change idle timer from main thread.

This prevents various runtime warnings i.e.
"Main Thread Checker: UI API called on a background thread:
-[UIApplication setIdleTimerDisabled:] ..."

1 files changed, 6 insertions, 2 deletions

diff --git a/backends/platform/ios7/ios7_osys_video.mm b/backends/platform/ios7/ios7_osys_video.mm
index 730715d2a1..3196f88822 100644
--- a/backends/platform/ios7/ios7_osys_video.mm
+++ b/backends/platform/ios7/ios7_osys_video.mm
@@ -64,13 +64,17 @@ void OSystem_iOS7::fatalError() {
 void OSystem_iOS7::engineInit() {
 	EventsBaseBackend::engineInit();
 	// Prevent the device going to sleep during game play (and in particular cut scenes)
-	[[UIApplication sharedApplication] setIdleTimerDisabled:YES];
+	dispatch_async(dispatch_get_main_queue(), ^{
+		[[UIApplication sharedApplication] setIdleTimerDisabled:YES];
+	});
 }
 
 void OSystem_iOS7::engineDone() {
 	EventsBaseBackend::engineDone();
 	// Allow the device going to sleep if idle while in the Launcher
-	[[UIApplication sharedApplication] setIdleTimerDisabled:NO];
+	dispatch_async(dispatch_get_main_queue(), ^{
+		[[UIApplication sharedApplication] setIdleTimerDisabled:NO];
+	});
 }
 
 void OSystem_iOS7::initVideoContext() {