如何禁用 UISegmentedControl？

Question

I have the following UISegmentedControl, which I want to be disabled:

-(void)displayCheckMark
{
    titleSegmentedControl = [[UISegmentedControl alloc] initWithItems:nil];
    [titleSegmentedControl insertSegmentWithImage:[UIImage imageNamed:@"symbolbg.png"] atIndex:0 animated:YES];
    [titleSegmentedControl insertSegmentWithImage:[UIImage imageNamed:@"inwatchlist.png"] atIndex:1 animated:YES];
    [titleSegmentedControl addTarget:self action:@selector(titleBarButtonChanged:)forControlEvents:UIControlEventValueChanged];
    titleSegmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
    titleSegmentedControl.frame = CGRectMake(100,0,100,30);
    titleSegmentedControl.momentary = YES;
    titleSegmentedControl.tintColor = [UIColor blackColor];
    self.navigationItem.titleView = titleSegmentedControl;

    [titleSegmentedControl setWidth:60 forSegmentAtIndex:0];
    [titleSegmentedControl setTitle:symbol forSegmentAtIndex:0];
    [titleSegmentedControl setWidth:30 forSegmentAtIndex:1];
    [titleSegmentedControl setEnabled:NO];
}

I don't have it enabled anywhere in the code. Yet I can still click on it, and it will perform the action in titleBarButtonChanged:

How can I make sure it can't be clicked?

Answer 1

Try using:

- (void)setEnabled:(BOOL)enabled forSegmentAtIndex:(NSUInteger)segment;

or

titleSegmentedControl.userInteractionEnabled = NO;

Answer 2

在titleBarButtonChanged:(id)sender添加：

if(!sender.enabled) return;

Answer 3

I have the following UISegmentedControl, which I want to be disabled:

-(void)displayCheckMark
{
    titleSegmentedControl = [[UISegmentedControl alloc] initWithItems:nil];
    [titleSegmentedControl insertSegmentWithImage:[UIImage imageNamed:@"symbolbg.png"] atIndex:0 animated:YES];
    [titleSegmentedControl insertSegmentWithImage:[UIImage imageNamed:@"inwatchlist.png"] atIndex:1 animated:YES];
    [titleSegmentedControl addTarget:self action:@selector(titleBarButtonChanged:)forControlEvents:UIControlEventValueChanged];
    titleSegmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
    titleSegmentedControl.frame = CGRectMake(100,0,100,30);
    titleSegmentedControl.momentary = YES;
    titleSegmentedControl.tintColor = [UIColor blackColor];
    self.navigationItem.titleView = titleSegmentedControl;

    [titleSegmentedControl setWidth:60 forSegmentAtIndex:0];
    [titleSegmentedControl setTitle:symbol forSegmentAtIndex:0];
    [titleSegmentedControl setWidth:30 forSegmentAtIndex:1];
    [titleSegmentedControl setEnabled:NO];
}

I don't have it enabled anywhere in the code. Yet I can still click on it, and it will perform the action in titleBarButtonChanged:

How can I make sure it can't be clicked?