setting properties in the detail view from prepareForSegue

Tag: ios,objective-c

I created a Master/Detail application with xCode and changed very little about it. In prepareForSegue in the MasterViewController, I added this to try to put some text in a label in the detail view controller

MMDetailViewController *detailVC = [segue destinationViewController];
detailVC.testdetail.text = @"test";

I also added a label to the detailViewController on the storyboard and then did control/drag to the detailViewController to connect them.

@property (strong, nonatomic) IBOutlet UILabel *testdetail;

Therefore, when I set the text in prepareForSegue, I expected it to show in the label once I ran the code on the simulator. However, it didn't show. Can you explain why?

Best How To :

Its because you can't update the UILabel before it load... So what you need to do is this:

Make Nsstring and update it value, then in viewDidLoad update your Label.

In your detailViewController.h add

@property (strong, nonatomic)NSString *testString;

Then in the detailViewController.m in viewDidLoad:

- (void)viewDidLoad
{
[super viewDidLoad];
self.testdetail.text = testString;
}

in your masterViewController:

MMDetailViewController *detailVC = [segue destinationViewController];
detailVC.testString = @"test";

That's it, it should work now :) Happy coding

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