Remove gesture recognizer from PhoneMainView when dealloc InCallViewController

Classes/ContactDetailsViewController.m

@@ -208,10 +208,6 @@ static void sync_address_book (ABAddressBookRef addressBook, CFDictionaryRef inf
                 forState:(UIControlStateDisabled | UIControlStateSelected)];
 }
 
-- (void)viewDidUnload {
-    [super viewDidUnload];
-}
-
 - (void)viewWillDisappear:(BOOL)animated {
     [super viewWillDisappear:animated];
     if ([[UIDevice currentDevice].systemVersion doubleValue] < 5.0) {

Classes/InCallViewController.h

@@ -40,6 +40,7 @@
     UIView* testVideoView;
 #endif
     UICamSwitch* videoCameraSwitch;
+    UITapGestureRecognizer* singleFingerTap;
     
     UIActivityIndicatorView* videoWaitingForFirstImage;
     

Classes/InCallViewController.m

@@ -53,7 +53,12 @@ const NSInteger SECURE_BUTTON_TAG=5;
 #pragma mark - Lifecycle Functions
 
 - (id)init {
-    return [super initWithNibName:@"InCallViewController" bundle:[NSBundle mainBundle]];
+    self = [super initWithNibName:@"InCallViewController" bundle:[NSBundle mainBundle]];
+    if(self != nil) {
+        self->singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showControls:)];
+        self->videoZoomHandler = [[VideoZoomHandler alloc] init];
+    }
+    return self;
 }
 
 - (void)dealloc {
@@ -72,6 +77,9 @@ const NSInteger SECURE_BUTTON_TAG=5;
     
     [videoZoomHandler release];
     
+    [[PhoneMainView instance].view removeGestureRecognizer:singleFingerTap];
+    [singleFingerTap release];
+    
     // Remove all observer
     [[NSNotificationCenter defaultCenter] removeObserver:self];
     
@@ -171,13 +179,10 @@ static UICompositeViewDescription *compositeDescription = nil;
     linphone_core_set_native_video_window_id([LinphoneManager getLc],(unsigned long)videoView);	
     linphone_core_set_native_preview_window_id([LinphoneManager getLc],(unsigned long)videoPreview);
     
-    UITapGestureRecognizer* singleFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(showControls:)];
     [singleFingerTap setNumberOfTapsRequired:1];
     [singleFingerTap setCancelsTouchesInView: FALSE];
     [[PhoneMainView instance].view addGestureRecognizer:singleFingerTap];
-    [singleFingerTap release];
     
-    videoZoomHandler = [[VideoZoomHandler alloc] init];
     [videoZoomHandler setup:videoGroup];
     videoGroup.alpha = 0;
     
@@ -186,6 +191,10 @@ static UICompositeViewDescription *compositeDescription = nil;
     removeTableBackground([callTableController view]);
 }
 
+- (void)viewDidUnload {
+    [super viewDidUnload];
+    [[PhoneMainView instance].view removeGestureRecognizer:singleFingerTap];
+}
 
 - (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
     [super willRotateToInterfaceOrientation:toInterfaceOrientation duration:duration];

Classes/LinphoneUI/UICompositeViewController.m

@@ -244,6 +244,10 @@
     return NO;
 }
 
+- (void)didReceiveMemoryWarning {
+    [self clearCache];
+}
+
 
 #pragma mark - Event Functions
 
@@ -259,7 +263,18 @@
 #pragma mark -
 
 - (void)clearCache {
-    [viewControllerCache removeAllObjects];
+    for(NSString *key in [viewControllerCache allKeys]) {
+        UIViewController *vc = [viewControllerCache objectForKey:key];
+        if(vc != self.stateBarViewController &&
+           vc != self.tabBarViewController &&
+           vc != self.contentViewController) {
+            if ([[UIDevice currentDevice].systemVersion doubleValue] >= 5.0) {
+                [vc viewWillUnload];
+            }
+            [vc viewDidUnload];
+        }
+        [viewControllerCache removeObjectForKey:key];
+    }
 }
 
 - (UIInterfaceOrientation)currentOrientation {