ios - Access text from UITextField in modal View Controller from Home View Controller -

i have viewcontroller1 uilabel can present viewcontroller2 modal segue. have uitextfield in viewcontroller2 need access viewcontroller1 can set uilabel collected text.

i've tried working prepareforsegue without success. should do?

edit:

i'm using delegate, i'm doing wrong. here's code i'm using in viewcontroller2.h:

@class viewcontroller2;  @protocol vcprotocol  -(void)setname:(nsstring *)name;  @end  @interface viewcontroller2 : uiviewcontroller  @property (nonatomic, weak) id<vcprotocol> delegate; @property (strong, nonatomic) iboutlet uitextfield *namefield;  - (ibaction)setbutton:(id)sender  @end 

viewcontroller2.m

-(ibaction)setbutton:(id)sender {     [self.delegate setname:namefield.text]; } 

i conform vcprotocol in viewcontroller1.h. then, in viewcontroller1.m, have code:

- (void)setname:(nsstring *)name {     self.firstsignaturenamelabel.text = name; }  - (void)prepareforsegue:(uistoryboardsegue *)segue sender:(id)sender {     if ([segue.identifier isequal:@"sign"])     {         viewcontroller2 *vc = [segue destinationviewcontroller];         vc.delegate = self;     } } 

you can create protocol , set vc1 delegate of vc2, , using prepareforsegue set vc1 vc2's delegate should work. know said didn't work, can't see why. have try :

give identifier segue (on storyboard), , implement prepareforsegue shown below :

vc2delegate.h :

@protocol vc2delegate     - (void)updatelabel:(nsstring *)text; @end 

vc1.h :

#import "vc2delegate.h" @interface vc1 : uiviewcontroller <vc2delegate>     // stuff @end 

vc1.m :

- (void)updatelabel:(nsstring *)text {     [_label settext:text]; }  - (void)prepareforsegue:(uistoryboardsegue *)segue sender:(id)sender {     if ([[segue identifier] isequaltostring:@"yoursegueidentifier"]) {         vc2 * vc = [segue destinationviewcontroller];         [vc2 setdelegate:self];     } } 

vc2.h :

#import "vc2delegate.h" @interface vc2 : uiviewcontroller     @property (weak, nonatomic) id<vc2delegate>delegate; @end 

vc2.m

- (void)textwasupdated { // or whatever method detect text has been changed     if (_delegate)         [_delegate updatelabel:[_textview text]]; } 

tell me if works. else, prepareforsegue been called ?

edit : updated answer (wasn't needed). doesn't work :

• is prepareforsegue called ?
• if so, delegate method called ?
• if delegate method isn't called, check delegate not nil.

you might want remove segue, , present modally yourself, using presentviewcontroller:animated:completion:, :

- (ibaction)buttonwastapped {     static nsstring * const idmodalview = @"modalview";     static nsstring * const storyboardname = @"mainstoryboard"     uistoryboard * storyboard = [uistoryboard storyboardwithname:storyboardname bundle:nil];     vc2 * vc = [storyboard instantiateviewcontrollerwithidentifier:idmodalview];     [vc setdelegate:self];     [self.navigationcontroller presentviewcontroller:vc2 animated:yes completion:nil]; }