CODEWITHSUNDEEP
iphone
Nicholas Li
Nicholas Li

Reputation: 13

Access of label text in the other class

I got two viewcontrollers. --> AViewController,BViewController



AViewController need to create an object of BViewController. And presentmodalcontroller: to go to the BViewController.

And BViewController

 need to create an object of the AViewController

 as well, so that is can update the label text inside BViewController

's method.

Has try import in AViewController

 in BViewController

. error come out. unknown type name'ViewController', did you mean 'UIViewController'?

If i want access the AViewController

 too, how do i solve this.

Anyone out there can help me, thank you in advance.

Upvotes: 1

Views: 164

Answers (2)

Neo
Neo

Reputation: 2807

In your BViewController.h

#import AViewcontroller.h

@property(nonatomic,retain) AViewcontroller* aViewcontroller;

In your BViewController.m

@synthesis aViewcontroller;

Then in your AViewcontroller.m where you create your BViewcontroller object lets say bViewcontroller

bViewcontroller.aViewcontroller=self;
//then navigate to bViewcontroller

Then you can update the previous AViewController's label text inside BViewController

's method.

self.aViewcontroller.label_you_want_to_update.text=@"your_text_here";

Hope this helps

Upvotes: 0

Owen Hartnett
Owen Hartnett

Reputation: 5935

In your header of BViewController, before the @interface, put:

@class AViewController;

This will let you declare an instance of AViewController type in BViewController. In the .m file of BViewController, #import AViewcontroller.h

Upvotes: 1

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