CODEWITHSUNDEEP
iphoneobjective-cuinavigationcontrollernsinteger
SwingerDinger
SwingerDinger

Reputation: 276

Passing int back in NavigationController

I'm sitting with a issue which I can't solve in a while. I must be doing something very wrong. I have 2 views, a UIView and UITableView. They're embedded with a NavigationController.

In the second view; TableView, I want to pass a NSInteger back to the UIView, the first view.

I've used the solution of https://stackoverflow.com/a/19343715/3355194 but didn't work for me. It gives me a 0 value back in the UIView. In the TableView it does give me right value of numberOnSectionInTableView. Also tried some other solution but same result.

What I did so far.

In the TableView.h:

@protocol senddataProtocol <NSObject>

-(void)sendBadgeIntBack:(int*)section;

@property (nonatomic, assign) id delegate;

TableView.m:

@synthesize delegate;

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    self.section = [self.tableView numberOfSections];
    section = [[[UIApplication sharedApplication] scheduledLocalNotifications] count];

    NSLog(@"Number of sections: %i", section-1);

    return (int)[[[UIApplication sharedApplication] scheduledLocalNotifications] count]/2;
}

-(void)viewWillDisappear:(BOOL)animated
{
    [delegate sendBadgeIntBack:&(section)];
}

UIView.h:

 @property (nonatomic) int section;

UIView.m: It gives me a 0 value here.

-(void)sendBadgeIntBack:(int*)section
{
    NSLog(@"The numbers of sections in tableView are: %i", self.section);
}

Hope you could help me find the solution. Thank you in advance.

Upvotes: 0

Views: 69

Answers (2)

Pradip Vanparia
Pradip Vanparia

Reputation: 1742

In the TableView.h:

@protocol senddataProtocol <NSObject>

-(void)sendBadgeIntBack:(int)section_selected;

@property (nonatomic, assign) id delegate;
 @property (nonatomic) int section;

TableView.m:

@synthesize delegate;

- (NSInteger)numberOfSectionsInTableView:(UITableView *)tableView
{
    self.section = [self.tableView numberOfSections];
    section = [[[UIApplication sharedApplication] scheduledLocalNotifications] count];

    NSLog(@"Number of sections: %i", section-1);

    return (int)[[[UIApplication sharedApplication] scheduledLocalNotifications] count]/2;
}

-(void)viewWillDisappear:(BOOL)animated
{
    [delegate sendBadgeIntBack:section];
}

UIView.h:

 @property (nonatomic) int section;

UIView.m: It gives me a 0 value here.

-(void)sendBadgeIntBack:(int*)section_selected;
{
self.section = section_selected;
    NSLog(@"The numbers of sections in tableView are: %i", self.section);
}

Upvotes: 2

Adis
Adis

Reputation: 4552

You're using pass by reference (int *) instead of pass by value (int) which you should use for primitive values. To simplify, objects get a star, integers, floats, structs etc. don't.

Additionally, if the problem still persists, you probably didn't set your delegate properly, put a breakpoint in the method and check if it gets called properly.

Upvotes: 1

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