Question

I created a UISegmentedControl through the following snippet.

NSArray *itemArray = [NSArray arrayWithObjects: @"One", @"Two", nil];
segmentedControl = [[UISegmentedControl alloc] initWithItems:itemArray];
segmentedControl.frame = CGRectMake(105, 270, 140, 30);
segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
segmentedControl.selectedSegmentIndex = 0;

[segmentedControl addTarget:self action:@selector(selectWeek:) forControlEvents:UIControlEventValueChanged];
[self.navigationController.view addSubview:segmentedControl];

When I press the button to turn UISegmentedCotrol, it doesn’t work. What could be wrong?
I’m doing segmentedControl.hidden = YES;.

Answer 1

[self.navigationController.view addSubview:segmentedControl];

change it to

[self.view addSubview:segmentedControl];

and make sure segmentedControl.hidden=NO; when you add it to subview;