Why UITextField becomeFirstResponder returns NO?
becomefirstresponder, ios, objective-c, uitextfield
Solution
Is your identificationField in UIView hierarchy? If it hasn't added into window and shown it cannot became first responder.
Problem
This is my code: ``` while (true) { if ([identificationField becomeFirstResponder]) { NSLog(@"finally!"); break; } else{ if ([identificationField canBecomeFirstResponder]) { NSLog(@"can"); } else{ NSLog(@"cannot"); } NSLog(@"%@", identificationField); NSLog(@"dadgum!!"); } } ``` This is what it logs: ``` 2014-02-05 11:33:54.253 Store Test[22488:70b] can 2014-02-05 11:33:54.254 Store Test[22488:70b] <UITextField: 0xb5c89a0; frame = (10 1; 300 43); text = ''; clipsToBounds = YES; opaque = NO; autoresize = TM+BM; gestureRecognizers = <NSArray: 0xb5cc7b0>; layer = <CALayer: 0xb5c8b40>> 2014-02-05 11:33:54.254 Store Test[22488:70b] dadgum!! ``` Does anyone know why it might do that? As you can see, the text field can become the first responder, it just won't.