iphone - how to Disable a uibutton in another class without navigating to that -


my problem different here have big view(classa) , small view on it(classb), beside small view there 4 buttons belongs class ,i want disable buttons. here code.

in classb.m

-(void)hidebuttons{       mainview = [[mainviewcontroller alloc]initwithnibname:@"mainviewcontroller"    bundle:null];     [mainview hidesidebarbuttons];  }

in class b

-(void)hidesidebarbuttons{      self.pebtn.enabled = no;       byviewbtn.enabled = no;     favouritebtn.enabled = no;     settingbtn.enabled = no;     itembutton.enabled = no;     addvehbtn.enabled = no;     uploadallbtn.enabled = no;     deletevideosbtn.enabled = no;     }

these buttons not getting disabled.i'm not navigating view(cassa) i'm staying in same class;

if right understand problem, need use delegate.

in classb.h

@protocol classbdelegate <nsobject>  -(void) hidesidebarbuttons;  @interface classb: uiviewcontroller {  __unsafe_unretained id<classbdelegate> delegate_;  }  @property (nonatomic, assign) id delegate;  -(void)hidebuttons;  @end   ----------  in classb.m   ----------   @implementation classb  @synthesyze delegate = delegate_;  -(void)hidebuttons {  [self.delegate hidesidebarbuttons];  }   ----------  in class mainviewcontroller need sign classbdelegate event. use code in mainviewcontroller.h   ----------  @interface mainviewcontroller : uiviewcontroller <classbdelegate> in classb.h  @protocol classbdelegate  -(void) hidesidebarbuttons;  @interface classb: uiviewcontroller {  __unsafe_unretained id delegate_;  }  @property (nonatomic, assign) id delegate;  -(void)hidebuttons;  @end  in classb.m  @implementation classb  @synthesyze delegate = delegate_;  -(void)hidebuttons {  [self.delegate hidesidebarbuttons];  }

in class mainviewcontroller need sign classbdelegate event. use code in mainviewcontroller.h

@interface mainviewcontroller : uiviewcontroller

when init classb in mainviewcontroller.m need write:

[classb setdelegate:self];

than need write classbdelegate method -(void) hidesidebarbuttons in mainviewcontroller.m file , disable buttons in method. example ( in mainviewcontroller.m)

-(void) hidesidebarbuttons {  self.pebtn.enabled = no;  }

hope helps))


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