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I have multiple string value in one .m file and i want to access these file to another .m file to use value in file.

harsh rajput
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  • You should refer this answer http://stackoverflow.com/a/22934200/3883040. – Sushil Sharma Oct 15 '15 at 09:55
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    Possible duplicate of [Passing Data between View Controllers](http://stackoverflow.com/questions/5210535/passing-data-between-view-controllers) – pkc456 Oct 15 '15 at 10:58

2 Answers2

1

if you wants to pass data from ViewControlerOne to ViewControllerTwo try these..

do these in ViewControlerOne.h

 @property (nonatomic, strong) NSString *str1;

do these in ViewControllerTwo.h

 @property (nonatomic, strong) NSString *str2;

Synthesize str2 in ViewControllerTwo.m

@interface ViewControllerTwo ()
@end
@implementation ViewControllerTwo
@synthesize str2;

do these in ViewControlerOne.m

 - (void)viewDidLoad
 {
   [super viewDidLoad];

  // Data or string you wants to pass in ViewControllerTwo..
  self.str1 = @"hello world";

 }

on the buttons click event do this..

-(IBAction)ButtonClicked
{ 
  //Navigation on buttons click event from ViewControlerOne to ViewControlerTwo with transferring data or string..
  ViewControllerTwo *objViewTwo=[self.storyboard instantiateViewControllerWithIdentifier:@"ViewControllerTwo"];
  objViewTwo.str2=str1;
  [self.navigationController pushViewController: objViewTwo animated:YES];
}

do these in ViewControllerTwo.m

- (void)viewDidLoad
{
 [super viewDidLoad];
  NSLog(@"%@",str2);
}
krushnsinh
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  • in button clicked event could you tell me please what is "obj"?obj.str2=str1; – harsh rajput Oct 15 '15 at 09:57
  • i updated that line..it is object of ViewControllerTwo.. – krushnsinh Oct 15 '15 at 10:03
  • I got exception when i hit on button ---Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: 'Storyboard () doesn't contain a view controller with identifier 'CustomerDetailViewController'' – harsh rajput Oct 15 '15 at 10:13
  • @harshrajput show your code. – Sushil Sharma Oct 15 '15 at 10:38
  • refer these links for giving storyboard Id..http://stackoverflow.com/questions/15478411/how-do-i-give-an-identifier-to-a-view-controller-within-my-storyboard and http://stackoverflow.com/questions/8295471/storyboard-doesnt-contain-a-view-controller-with-identifier – krushnsinh Oct 15 '15 at 10:40
  • - (IBAction)CheckAvailablity:(id)sender { CustomerDetailViewController *objViewTwo=[self.storyboard instantiateViewControllerWithIdentifier:@"CustomerDetailViewController"]; objViewTwo.getData=_goData; [self.navigationController pushViewController: objViewTwo animated:YES]; } – harsh rajput Oct 15 '15 at 10:48
  • @Sushil on the click event of button i write this code and no segue link on storyboard.Than is shows this error.And also i have no storyboard id set. – harsh rajput Oct 15 '15 at 10:56
  • If you are using storyboard, you need to set storyboardID for your `CustomerDetailViewController`. Follow the link in @krushnsinh's comment. – Sushil Sharma Oct 15 '15 at 11:01
  • you gave Navigation Controller to your first view controller??and set storyboard id..In my code second view controllers name is ViewControllerTwo and its storyboard id is also ViewControllerTwo.. – krushnsinh Oct 15 '15 at 11:01
  • Thanks this code works but in my case . – harsh rajput Oct 15 '15 at 11:33
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With the following two ways you can achieve this,
1) You can create public property in .h file.
2) Can also use delegate or notification to pass data between controllers.

Mrs. Agrawal
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