NSArray中的一个对象被释放

Question

I am writing an app using the TWTSideMenuViewController installed using cocoapods. For this I have a ViewController titled MenuViewController which has an array of all the individual content view controllers:

- (id)initWithNibName:(NSString *)nibNameOrNil bundle:(NSBundle *)nibBundleOrNil {
    self = [super initWithNibName:nibNameOrNil bundle:nibBundleOrNil];
    if (self) {
        // Custom initialization
        _controllerArray = [NSArray arrayWithObjects:
                            [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil],
                            [[AboutMeViewController alloc] initWithNibName:@"AboutMeViewController" bundle:nil],
                            [[ScheduleViewController alloc] initWithNibName:@"ScheduleViewController" bundle:nil],
                            [[FoodViewController alloc] initWithNibName:@"FoodViewController" bundle:nil],
                            [[CalendarViewController alloc] initWithNibName:@"CalendarViewController" bundle:nil],
                            [[AthleticsViewController alloc] initWithNibName:@"AthleticsViewController" bundle:nil],
                            [[DirectoryViewController alloc] initWithNibName:@"DirectoryViewController" bundle:nil], nil];
    }
    return self;
}

I then set up the TWTSideMenuViewController with this code:

MenuViewController *menuViewController = [[MenuViewController alloc] initWithNibName:@"MenuViewController" bundle:nil];
TWTSideMenuViewController *twtSideMenuViewController = [[TWTSideMenuViewController alloc] initWithMenuViewController:menuViewController mainViewController:[[menuViewController controllerArray] objectAtIndex:0]];
twtSideMenuViewController.zoomScale = .5;
twtSideMenuViewController.edgeOffset = UIOffsetMake(-80, 0);
self.window.rootViewController = twtSideMenuViewController;

All of this works perfectly, however when I switch to a different content view (other than the default, home, and I try to go back to home I get an EXC_BAD_ACCESS error. I can switch back and forth between any other content view controllers, as it appears the HomeViewController is the only one deallocated.

I have a feeling that this has to do with the fact that it is accessed in the setup code, but is there any way to fix this issue?

Answer 1

You have to declare each view controller's object as strong and pass it to the array like

@property(strong,nonatomic) HomeViewController *home;



home = [[HomeViewController alloc] initWithNibName:@"HomeViewController" bundle:nil]
_controllerArray = [NSArray arrayWithObjects:home,aboutme....];

In your old code, class objects are not declared with strong reference . A strong referenced object would make retain loop . That means you will become the owner of this object.

But when you declare object as local, you dont have the strong reference on it. That means it will deallocated automatically after current execution loop complete. That's why your HomeViewController local object in the array getting deallocated and shows the error

Answer 2

The podspec has been updated on GitHub specifying ARC.

For more info: https://github.com/twotoasters/TWTSideMenuViewController/pull/9