iOS UITextFlied secureTextEntry not working on iOS 6.1

Question

I have set a password field and under that a UIButton to toggle secureTextEntry to YES/NO.

The following is the code that I have used.

- (void)viewDidLoad
{
    self.navigationController.navigationBarHidden=YES;
    [_ShowPasswordButtonOutlet setImage:[UIImage imageNamed:@"box.png"] forState:UIControlStateNormal];
    _password.secureTextEntry=YES;
    [super viewDidLoad];
}

- (IBAction)ShowPassword:(id)sender
{
    if ([_ShowPasswordButtonOutlet.imageView.image isEqual:[UIImage imageNamed:@"box.png"]])
    {
        [_ShowPasswordButtonOutlet setImage:[UIImage imageNamed:@"box_tick.png"] forState:UIControlStateNormal];
        _password.secureTextEntry=NO;
    } else if ([_ShowPasswordButtonOutlet.imageView.image isEqual:[UIImage imageNamed:@"box_tick.png"]])
    {
        [_ShowPasswordButtonOutlet setImage:[UIImage imageNamed:@"box.png"] forState:UIControlStateNormal];
        _password.secureTextEntry=YES;
    }
}

The Above code seems to be working in iOS7 and iOS7.1.

But in iOS6.1, The button image seems to be changing when clicked but the secureTextEntry works only once from YES to NO. Later if clicked only the UIButton, the image changes and secureTextEntry is not working.

It is not showing any warning or errors!

Answer 1

You should disable UITextField before set secureTextEntry value to YES in iOS6.

- (IBAction)ShowPassword:(id)sender
{
    if (_password.secureTextEntry)
    {
         [_ShowPasswordButtonOutlet setImage:[UIImage imageNamed:@"box_tick.png"] forState:UIControlStateNormal];
         _password.secureTextEntry = NO;
    }
    else 
    {
        [_ShowPasswordButtonOutlet setImage:[UIImage imageNamed:@"box.png"] forState:UIControlStateNormal];
        _password.enabled = NO;
        _password.secureTextEntry = YES;
        _password.enabled = YES;
    }
}