ios - Xcode: Changing my UIBarButton item title if pressed? -

i trying set uibarbutton items title dependant on whether buttons been clicked or not, think close not sure why isn't working. using storyboard , barbuttons name/method "share1" , have is connected on storyboard, , heres code far:

in .h:

- (ibaction)share1:(id)sender; 

and in .m:

#import "viewcontroller2.h"  @interface viewcontroller2 ()   @property (assign, nonatomic) bool sharepressed;   @end  @implementation viewcontroller2  - (ibaction)share1:(id)sender {      //i trying open menu in shouldn't affect button.      if (self.sidemenu.isopen) {         self.sharepressed = yes;         [self.sidemenu close];     }      else {         [self.sidemenu open];      }      self.navigationitem.rightbarbuttonitem = [[uibarbuttonitem alloc] initwithtitle:@"share" style:uibarbuttonitemstylebordered target:self action:@selector(share1:)];  }  - (void)viewdidload {     [super viewdidload];      if (_sharepressed) {         self.navigationcontroller.navigationitem.rightbarbuttonitem  = [[uibarbuttonitem    alloc] initwithtitle:@"hide" style:uibarbuttonitemstylebordered target:self action:@selector(share1:)];     _sharepressed |= _sharepressed;     } } 

any appreciated.

first of all. may want use self.sharepressed instead of _sharepressed. use second way inside initializer, setter, , getter methods. , suggest use capital letters denote when new word in variable name begins. example, instead of sharepressed use sharepressed, makes easier read specially when name long.

now code. don't want allocate self.navigationitem.rightbarbuttonitem again when action occurs. may want change title. better use this:

• if using navigation controller

  self.title = @"share"; 

• if using navigation bar

  self.navigationbar.title = @"share"; // navigationbar name gave object