Passing Bool Value from one viewcontroller to another in ios [duplicate] - ios

Question

This question already has answers here:
Passing data between view controllers
(45 answers)
Closed 6 years ago.
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;

Answer 1

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.

Answer 2

Try to define BOOL property and set value either true or false.
For Ex: Appdelegate declare property and then use
#property (nonatomic) BOOL fromSkip;