[iOS] Hotfix banner ad lost top position after interstitial ad.

Author: Str4tos

Plugins/iOS/CASUView.m

@@ -24,7 +24,7 @@ @implementation CASUView {
     int _activeSizeId;
     BOOL _requiredRefreshSize;
     BOOL _adHidden;
-    
+
     /// Bug in Apple's SKProductViewController which always tries to present in portrait mode.
     /// In landscape apps, it tries to force the orientation to be portrait, causing the safe areas insets to switch to portrait mode insets even though the SKProductViewController looks like it's presenting in landscape.
     /// As woraround we ignore Top safearea offset if Portrait Orientation is not Supported.
@@ -76,8 +76,7 @@ - (void)enable {
         return;
     }
 
-    UIWindow *unityWindow = [CASUPluginUtil unityWindow];
-    UIViewController *unityController = unityWindow.rootViewController;
+    UIViewController *unityController = [CASUPluginUtil unityWindow].rootViewController;
 
     self.bannerView = [[CASBannerView alloc] initWithCasID:_casID
                                                       size:[self getSizeByCode:_activeSizeId]
@@ -114,7 +113,7 @@ - (void)enable {
                                       attribute:NSLayoutAttributeTop
                                       relatedBy:NSLayoutRelationGreaterThanOrEqual
                                          toItem:_isPortraitOrientationSupported ?
-          safeArea : unityWindow
+          safeArea : unityView
                                       attribute:NSLayoutAttributeTop
                                      multiplier:1.0
                                        constant:0.0],
@@ -141,7 +140,7 @@ - (void)enable {
                                        constant:0.0]
     ]];
 
-    [self refreshPositionInSafeArea:safeArea];
+    [self refreshPosition];
 }
 
 - (void)destroy {
@@ -192,8 +191,7 @@ - (void)setPositionCode:(int)code withX:(int)x withY:(int)y {
     _verticalOffset = y;
 
     if (self.bannerView) {
-        UILayoutGuide *safeArea = self.bannerView.superview.safeAreaLayoutGuide;
-        [self refreshPositionInSafeArea:safeArea];
+        [self refreshPosition];
     }
 }
 
@@ -341,7 +339,14 @@ - (CGSize)getSafeAreaSize {
 }
 
 /// Attention. NSLayoutConstraint with `[self getWindow].safeAreaLayoutGuide` can be lost (removed) after Window refreshed (Interstitial ad), use `superview.safeAreaLayoutGuide` instead.
-- (void)refreshPositionInSafeArea:(UILayoutGuide *)safeArea {
+- (void)refreshPosition {
+    if (!self.bannerView) {
+        return;
+    }
+
+    UIView *superView = self.bannerView.superview;
+    UILayoutGuide *safeArea = superView.safeAreaLayoutGuide;
+
     if (!safeArea) {
         return;
     }
@@ -354,7 +359,7 @@ - (void)refreshPositionInSafeArea:(UILayoutGuide *)safeArea {
         case kCASUPosition_TOP_CENTER:
         case kCASUPosition_TOP_LEFT:
         case kCASUPosition_TOP_RIGHT:{
-            self.constraintY = [NSLayoutConstraint constraintWithItem:self.bannerView attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem: _isPortraitOrientationSupported ? safeArea : [CASUPluginUtil unityWindow] attribute:NSLayoutAttributeTop multiplier:1.0 constant:_verticalOffset];
+            self.constraintY = [NSLayoutConstraint constraintWithItem:self.bannerView attribute:NSLayoutAttributeTop relatedBy:NSLayoutRelationEqual toItem:_isPortraitOrientationSupported ? safeArea : superView attribute:NSLayoutAttributeTop multiplier:1.0 constant:_verticalOffset];
             break;
         }