Passing Bool Value from one viewcontroller to another in ios

Question

I am trying to send a BOOL value from ViewController A to ViewController B. On ViewController A, dashboard.skip shows YES, but on ViewController B, self.skip shows NO.

- (IBAction)skipToDashboard:(UIButton *)sender {
    ViewController B *vc=[[ViewController B alloc]init];
    vc.presentButtonTag=sender.tag;
    self.fromSkip=YES;
    vc.skip=self.fromSkip;
}

In ViewController B:

@property (nonatomic,assign) BOOL skip;

you can create a BOOL Property to ViewController B and Pass the Value from ViewController A and ByDefault BOOL Property value is FALSE so handle your code accordingly. if there is still issue so please let me know. — Ravi Panchal, Jan 05 '17 at 05:53
I have already made a property in ViewController B i.i.@property (nonatomic) BOOL skip; but its not working — TestShroff, Jan 05 '17 at 05:58
you have to create one bool variable in appdelegate and use it your viewcontroller — Birendra, Jan 05 '17 at 06:13
What did you do with `vc` in your code example? Did you present this controller? — Artem Novichkov, Jan 05 '17 at 06:15
@TestShroff show how you are getting `fromSkip` value this will definitely results 1 to next vc. — vaibhav, Jan 05 '17 at 06:28
How you are pushing your view to next by Storyboard segue or by coding ? — CodeChanger, Jan 05 '17 at 06:49
Suggestion : Its a wrong way to keep BOOL value in AppDelegate as we need that in single VC so we can take it in same VC not globally. — CodeChanger, Jan 05 '17 at 07:42

Himanshu Patel · Answer 1 · 2017-01-05T06:41:23.433

0

Try to define BOOL property and set value either true or false.

For Ex: Appdelegate declare property and then use

@property (nonatomic) BOOL fromSkip;

edited Jan 05 '17 at 06:41

answered Jan 05 '17 at 06:00

Himanshu Patel

1,015
8
26

This is not working ...it still gives NO on ViewController B.Please help – TestShroff Jan 05 '17 at 06:05
@TestShroff Then you need to synthesize property – Himanshu Patel Jan 05 '17 at 06:16
Done that also,but no results... – TestShroff Jan 05 '17 at 06:26
@TestShroff please follow [link](http://stackoverflow.com/questions/5210535/passing-data-between-view-controllers?rq=1) – Himanshu Patel Jan 05 '17 at 06:40

score 0 · Accepted Answer · answered Jan 05 '17 at 07:26

There are 2 ways to pass your data from First screen to 2nd screen.

1st Way:

You can pass your data by creating VC object and assign value in it and push to next screen like below example.

Code :

//Initilize view controller from storyboard id.
ViewController *objViewController = [self.storyboard instantiateViewControllerWithIdentifier:@"ViewController"];

//Assign value
objViewController.presentButtonTag=sender.tag;
self.fromSkip=YES;
objViewController.skip=self.fromSkip;

//Push view
[self.navigationController pushViewController:objViewController animated:YES];

2nd Way:

By Storyboard you can set segue action on button and in prepare segue method you need to pass your data like this.

Code:

#pragma mark - Navigation

// In a storyboard-based application, you will often want to do a little preparation before navigation
- (void)prepareForSegue:(UIStoryboardSegue *)segue sender:(id)sender {
    // Get the new view controller using [segue destinationViewController].
    // Pass the selected object to the new view controller.
    if ([segue.identifier isEqualToString:@"ViewController"]) {
        ViewController *objViewController = (ViewController*)segue.destinationViewController;
        objViewController.selectedTag = ((UIButton*) sender).tag;
       //Assign value
      objViewController.presentButtonTag=sender.tag;
      self.fromSkip=YES;
      objViewController.skip=self.fromSkip;
    }
}

Now you can check your scenario in both condition I think you are pushing to next screen by storyboard so use 2nd Way.

Let me know if you need more help.

Passing Bool Value from one viewcontroller to another in ios

2 Answers2