I’ve set up a UITextField in Interface Builder and connected it with the property self.nameField. My problem is that, as is, tapping it does nothing–the user can’t enter any text; there isn’t even a cursor. If I add becomeFirstResponder then the keyboard automatically displays. What I want is for the keyboard to display if and only if the user taps the field to enter text.
The method involved is as follows:
-(void)displayOptOutScreen
{
if (!self.nameField)
{
self.nameField=[[UITextField alloc] init];
}
self.nameField.hidden=NO;
self.nameField.delegate = self;
self.nameField.returnKeyType = UIReturnKeyDone;
[self textFieldShouldReturn:self.nameField];
[self.textView resignFirstResponder]; //This is a UITextView, created programmatically
//[self.nameField becomeFirstResponder]; //Keyboard automatically displays.
}
For what it’s worth, there’s a UIButton that also isn’t accepting touches. The UITextView is accepting text with no problem.
This is a tabbed application. After reading over other Stack Overflow questions, I’ve tried adding various combinations of the following lines to the app delegate:
self.window = [[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
self.viewController = [[GHHaikuViewController alloc] initWithNibName:@"GHHaikuViewController" bundle:nil];
self.window.rootViewController = self.viewController;
[self.window makeKeyAndVisible];
but I get various errors depending on which lines I include or not, and nothing ends up working. (The view controller the UITextField is on is not GHHaikuViewController but GHComposeViewController, but I get an error when I try to use that instead.)
Any thoughts about what I’m doing wrong?
EDIT: Here are screen shots of the Interface Builder settings. Sorry they’re broken up–I’m working on a MacBook Air 11″.
FURTHER EDIT: Here’s the output when I entered po [[[[UIApplication sharedApplication] delegate] window] recursiveDescription] at the debug prompt.
(id) $1 = 0x0ad4bb80 <UIWindow: 0xad48ac0; frame = (0 0; 320 480); autoresize = W+H; layer = <UIWindowLayer: 0xad44010>>
| <UILayoutContainerView: 0x9e74450; frame = (0 0; 320 480); autoresize = W+H; layer = <CALayer: 0x9e74510>>
| | <UITransitionView: 0xaa46f80; frame = (0 0; 320 431); clipsToBounds = YES; autoresize = W+H; layer = <CALayer: 0xaa47050>>
| | | <UIViewControllerWrapperView: 0x9e90760; frame = (0 20; 320 411); autoresize = W+H; layer = <CALayer: 0x9e907c0>>
| | | | <UIView: 0x9e8c870; frame = (0 0; 320 411); autoresize = W+H; gestureRecognizers = <NSArray: 0x9e8bbd0>; layer = <CALayer: 0x9e8c8d0>>
| | | | | <UIImageView: 0x9e8c790; frame = (0 0; 320 411); clipsToBounds = YES; opaque = NO; autoresize = TM+BM; layer = <CALayer: 0x9e8c7f0>>
| | | | | <UITextField: 0x9e82610; frame = (40 189; 240 30); text = ''; clipsToBounds = YES; opaque = NO; autoresize = TM+BM; gestureRecognizers = <NSArray: 0x9e6ea90>; layer = <CALayer: 0x9e83720>>
| | | | | | <UITextFieldRoundedRectBackgroundView: 0x9e73ac0; frame = (0 0; 240 30); userInteractionEnabled = NO; layer = <CALayer: 0x9e73b80>>
| | | | | | | <UIImageView: 0x9e73cd0; frame = (0 0; 8 30); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e73d30>>
| | | | | | | <UIImageView: 0x9e73d80; frame = (8 0; 224 30); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e73de0>>
| | | | | | | <UIImageView: 0x9e73e10; frame = (232 0; 8 30); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e73e70>>
| | | | | | <UITextFieldLabel: 0x9e8afa0; frame = (7 7; 226 15); text = 'Name (optional)'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e8af20>>
| | | | | <UIButton: 0xad6fb00; frame = (236 221; 44 44); clipsToBounds = YES; opaque = NO; autoresize = TM+BM; layer = <CALayer: 0xad6fbf0>>
| | | | | | <UIImageView: 0x9e921c0; frame = (14 14; 16 16); clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e922d0>>
| | | | | | <UIButtonLabel: 0x9e8a6f0; frame = (0 0; 0 0); clipsToBounds = YES; hidden = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0x9e8a790>>
| | | | | <UITextView: 0xa3de800; frame = (20 90; 300 480); text = '
I hope to update the May...'; clipsToBounds = YES; gestureRecognizers = <NSArray: 0x9e72ef0>; animations = { transition=<CATransition: 0x9e8eea0>; }; layer = <CALayer: 0x9e5d770>; contentOffset: {0, 0}>
| | | | | | <UIWebDocumentView: 0xa3dec00; frame = (0 0; 300 188); text = '
I hope to update the May...'; opaque = NO; userInteractionEnabled = NO; gestureRecognizers = <NSArray: 0x9e8d5a0>; layer = <UIWebLayer: 0x9e8d220>>
| | | | | | | <TileHostLayer: 0x9e8d2b0> (layer)
| | | | | | | | <TileLayer: 0x9e90fb0> (layer)
| | <UITabBar: 0xad41b80; frame = (0 431; 320 49); autoresize = W+TM; layer = <CALayer: 0xad41c70>>
| | | <_UITabBarBackgroundView: 0xad47950; frame = (0 0; 320 49); opaque = NO; autoresize = W; userInteractionEnabled = NO; layer = <CALayer: 0xad47a00>>
| | | <UITabBarButton: 0xad42ff0; frame = (2 1; 76 48); opaque = NO; layer = <CALayer: 0xad453e0>>
| | | | <UITabBarSwappableImageView: 0xad45670; frame = (14 2; 48 32); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad45740>>
| | | | <UITabBarButtonLabel: 0xad42410; frame = (24 34; 28 13); text = 'Home'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad42500>>
| | | <UITabBarButton: 0xad46b10; frame = (82 1; 76 48); opaque = NO; layer = <CALayer: 0xad46460>>
| | | | <UITabBarSelectionIndicatorView: 0xad5cf90; frame = (0 2; 76 44); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad5d2f0>>
| | | | <UITabBarSwappableImageView: 0xad46490; frame = (14 2; 48 32); opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad46510>>
| | | | <UITabBarButtonLabel: 0xad46790; frame = (15 34; 46 13); text = 'Compose'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad40650>>
| | | <UITabBarButton: 0xad46630; frame = (162 1; 76 48); opaque = NO; layer = <CALayer: 0xad47080>>
| | | | <UITabBarButtonLabel: 0xad46df0; frame = (29 34; 19 13); text = 'Buy'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad466f0>>
| | | <UITabBarButton: 0xad47270; frame = (242 1; 76 48); opaque = NO; layer = <CALayer: 0xad47770>>
| | | | <UITabBarButtonLabel: 0xad47330; frame = (15 34; 47 13); text = 'Feedback'; clipsToBounds = YES; opaque = NO; userInteractionEnabled = NO; layer = <CALayer: 0xad473d0>>
| | | <UIImageView: 0xad48130; frame = (0 -3; 320 3); opaque = NO; autoresize = W+BM; userInteractionEnabled = NO; layer = <CALayer: 0xad48190>>
(lldb)
Assuming you’re handling your UIControls correctly (having set all userInteractionEnabled properties to YES, for instance), this sounds as if you have set an invisible UIView on top of your UIControls.
Once your app is running in the simulator, you can check this manually by pausing the application (using the little pause button under your code) and typing this command in the debug prompt:
This will print out the description of the UIWindow and all of its subviews. You can check if there is a UIView on top of your UIControls somehow.