Delegate Method not being called by the parent view? - ios

Question

Im building an app that calls different subviews and lay them over in a main view controller (http://imgur.com/p6l9Oac)
when ever the user clicks a button on the bottom part of the screen (lets call it sliding menu!) the view behind it will disappear and new one will show up.
one of the subviews is Settings , which it have some switches to enable/disable some of the buttons.
in the SettingsViewController.
Ive set a protocol:
#protocol SettingsViewControllerDelegate <NSObject>
#required
-(void)hideCountdownView;
-(void)showCountdownView;
#end
and the interface contains:
#interface SettingsHubViewController : UIViewController
#property (weak, nonatomic) IBOutlet UISwitch *enableCountdown;
#property (nonatomic, assign) id <SettingsViewControllerDelegate> delegate;
#property (weak, nonatomic) IBOutlet UIView *mainView;
#end
and in the Implementation:
- (IBAction)switchAction:(id)sender {
if (!self.enableCountdown.on) {
NSLog(#"The view is Hidden");
[_delegate hideCountdownView];
} else if (self.enableCountdown.on) {
NSLog(#"The view is Shown");
[_delegate showCountdownView];
}
}
You can see i used _delegate to use the show and hide functions, I used NSLog to make sure that Im calling the functions correctly.
in the MainViewController
#import "SettingsHubViewController.h"
#interface MainViewController () <SettingsViewControllerDelegate>
#property (nonatomic, strong) SettingsHubViewController * settingsViewController;
and the Implementation
#implementation MainViewController
-(void)showCountdownView {
self.slidingMainMenuViewController.countdownView.hidden = NO;
NSLog(#"Showing Countdown");
}
-(void)hideCountdownView {
self.slidingMainMenuViewController.countdownView.hidden = YES;
NSLog(#"Hiding Countdown");
}
-(void)viewDidLoad {
[super viewDidLoad];
self.settingsViewController.delegate = self;
self.slidingMainMenuViewController.delegate = self;
}
the problem is that the NSLogs above is not being called at all, can any one help me ?
Thanks
UPDATE: Since i have more that 20 different views that needs to be called, i created this method
- (UIView *) getPresentedMenu:(NSString *) menuIdentifer withMenuTag:(int) menuTag withAViewController:(UIViewController*) menuViewController andMenuDelegate:(id) menuDelegate {
menuViewController = [[UIStoryboard storyboardWithName:#"Main" bundle:Nil] instantiateViewControllerWithIdentifier:menuIdentifer];
menuViewController.view.tag = menuTag;
if (self.viewBeingCalledBySwipe == NO) {
menuViewController.view.frame = CGRectMake(0, menuViewController.view.frame.size.height, menuViewController.view.frame.size.width, menuViewController.view.frame.size.height);
} else if (self.isItRightSwipe == YES) {
menuViewController.view.frame = CGRectMake(-menuViewController.view.frame.size.width, 0, menuViewController.view.frame.size.width, menuViewController.view.frame.size.height);
} else if (self.isItRightSwipe == NO) {
menuViewController.view.frame = CGRectMake(menuViewController.view.frame.size.width, 0, menuViewController.view.frame.size.width, menuViewController.view.frame.size.height);
}
[self.view addSubview:menuViewController.view];
[self addChildViewController:menuViewController];
[menuViewController didMoveToParentViewController:self];
UIView *view = menuViewController.view;
return view;
}
So when ever i need a certain view controller, i just call this function
self.childView = [self getPresentedMenu:#"Settings" withMenuTag:SETTINGS_TAG withAViewController:self.settingsViewController andMenuDelegate:self.settingsViewController.delegate];
but this method is not assigning the delegate

Answer 1

If settingsViewController is an IBOutlet, you have to add IBOutlet to it's declaration and connect it using the storyboard or xib.
#property (nonatomic, strong) IBOutlet SettingsHubViewController * settingsViewController;
But if it's not an Outlet, you have to allocate it before set it's delegate.
self.settingsViewController = [[SettingsHubViewController alloc] init];
self.settingsViewController.delegate = self;
You should also verify that your - (IBAction)switchAction:(id)sender IBAction is correctly connected in the storyboard or xib.

Answer 2

When you initialize your SettingsViewController, make sure that you do it using the storyboard method and not [[SettingsViewController alloc] init].
First set a Storyboard ID directly in your storyboard view:
Then use this to settingsViewController:
self.settingsViewController = [[UIStoryboard storyboardWithName:#"MainStoryboard_iPhone" bundle:NULL] instantiateViewControllerWithIdentifier:#"SettingsViewController"];
Replace MainStoryboard_iPhone with your Storyboard name.
Hope that helps!

Answer 3

// If u are using View controller
SettingsHubViewController *settingVC = [[UIStoryboard storyboardWithName:#"Main" bundle:nil] instantiateViewControllerWithIdentifier:#"yourStoryBoardIdentifier"];
settingVC.delegate = self;
// If u are using XIB load the NIB after that set the settingVC.delegate = self;
its working for me (I created OverLay view and loaded in main class)