Delegate shouldn't keep the specific ViewController type

ios/AppDelegate.h

@@ -2,13 +2,13 @@
 
 #import <UIKit/UIKit.h>
 
-@class PPSSPPViewControllerGL;
+@protocol PPSSPPViewController;
 
 @interface AppDelegate : UIResponder <UIApplicationDelegate>
 
 @property (strong, nonatomic) UIWindow *window;
 @property (strong, nonatomic) UIScreen *screen;
 
-@property (strong, nonatomic) PPSSPPViewControllerGL *viewController;
+@property (strong, nonatomic) id<PPSSPPViewController> viewController;
 
 @end

ios/AppDelegate.mm

@@ -91,14 +91,15 @@
 
 	self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
 
+	PPSSPPViewControllerGL *vc = [[PPSSPPViewControllerGL alloc] init];
 	// Here we can switch viewcontroller depending on backend.
-	self.viewController = [[PPSSPPViewControllerGL alloc] init];
+	self.viewController = vc;
 
 	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleAudioSessionInterruption:) name:AVAudioSessionInterruptionNotification object:[AVAudioSession sharedInstance]];
 
 	[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(handleMediaServicesWereReset:) name:AVAudioSessionMediaServicesWereResetNotification object:nil];
 
-	self.window.rootViewController = self.viewController;
+	self.window.rootViewController = vc;
 	[self.window makeKeyAndVisible];
 
 	return YES;

ios/DisplayManager.mm

@@ -166,7 +166,7 @@
 	g_display.pixel_in_dps_x = (float)g_display.pixel_xres / (float)g_display.dp_xres;
 	g_display.pixel_in_dps_y = (float)g_display.pixel_yres / (float)g_display.dp_yres;
 	
-	[[sharedViewController view] setContentScaleFactor:scale];
+	[[sharedViewController getView] setContentScaleFactor:scale];
 	
 	// PSP native resize
 	PSP_CoreParameter().pixelWidth = g_display.pixel_xres;

ios/ViewController.h

@@ -16,6 +16,7 @@
 - (void)shareText:(NSString *)text;
 - (void)shutdown;
 - (void)bindDefaultFBO;
+- (UIView *)getView;
 @end
 
 @interface PPSSPPViewControllerGL : GLKViewController <

ios/ViewController.mm

@@ -599,6 +599,10 @@ int ToTouchID(UITouch *uiTouch, bool allowAllocate) {
 	return UIRectEdgeAll;
 }
 
+- (UIView *)getView {
+	return [self view];
+}
+
 - (void)setupController:(GCController *)controller
 {
 	self.gameController = controller;