Essentially i want to display a notification just beneath the UINavigationController, covering the area that would be occupied by the top most UIViewController's view. However i want the background image to extend upwards and partly cover the UINavigationBar
The finished product should hopefully look like the below
The trick comes in that i only want this to apply to certain views with the view Hierarchy, so attacking the problem by using [UIApplication keyWindow] might not be the best idea. Also i assume that by using views outside of the private UINavigationTransitionView won't be part of the view transition animation, leaving my view on top of the controller beneath when this one is popped.
The view of the topmost view controller doesn't help either, as it's frame is terminates at the base of UINavigationBar, meaning arrow won't overlap the UINavigationBar
Suggestions?
Thanks
Since it seems that you are facing the problem with Navigation Bar only as that will not allow to overlap the View.
This is tricky part....
Just use the Custom back button set the image over it in left of the Navigation bar Button
UINavigationBar *bar = [self.navigationController navigationBar];
UIButton *btn;
btn = [[UIButton alloc] initWithFrame:CGRectMake(5, 2, 100, 48)];
[btn setImage:[UIImage imageNamed:#"left.png"] forState:UIControlStateNormal];
btn.backgroundColor = [UIColor clearColor];
[bar addSubview:btn];
[btn release];
This is surely going to help you & solve all your Queries for the same ....
Related
I have created a utility app that links by button to another xib called scene - I am trying to create a navigation control for that link. When the button is clicked to then have a 'back' button on my scene xib. I don't wish to have a navigation bar visible on the Main View Controller or the Flipside View Controller. I'm quite new to iOS and I have no idea how to do this?
Would it maybe just be better to have a button going back to menu on a custom HUD? I don't know if that can be done?
Thank you for any help in advance, and thank you for your time
you could create a custom UINavigationBar on your scene xib, and add the custom back button to it if you don't want to create NavigationController , alternate would be that you could just make your first view as NavigationController and push the Scene view over it and it will brings the back button on the child view which is scene, keep your navigationBar hidden when you are on MainViewController and show only on scene view.
For hide UINavigationBar:
[[self navigationController] setNavigationBarHidden:YES animated:YES];
And Your can crate Custom UIButton and put anywhere (As Your requirement).
and in its method, Write code for go back to UIViewController (previous UIVieController).
Such like,
UIButton *btnBack = [UIButton buttonWithType:UIButtonTypeCustom];
[btnBack addTarget:self action:#selector(goBack:) forControlEvents:UIControlEventTouchUpInside];
btnBack.frame = CGRectMake(10, 10.5, 36, 39); // change it , As your wish
[btnBack setBackgroundImage:[UIImage imageNamed:#"MMBack.png"] forState:UIControlStateNormal];
[self.view addSubview:btnBack];
// call method of UIButton
-(void)goBack:(UIButton *) Sender
{
[self.navigationController popViewControllerAnimated:YES];
}
I've been following this example in everything to create a UIWindow on top of the statusBar.
My UIWindow gets displayed on top of the statusBar and all is fine, but the actual view of the app (the one with the button) doesn't respond to my actions:
I'm using Storyboards and iOS6.
Here's my code for creating a statusBar overlay:
- (void)viewDidAppear:(BOOL)animated {
UIWindow *overlayWindow = [[ACStatusBarOverlayWindow alloc] initWithFrame:CGRectZero];
AppDelegate *app = [[UIApplication sharedApplication] delegate];
overlayWindow.rootViewController = app.window.rootViewController;
app.window = overlayWindow;
[overlayWindow makeKeyAndVisible];
}
The view under the statusBar does not respond and I can't tap on the UIButton. Is it possible to somehow make the UIWindow with the interface of my app accept the touches ignoring the ACStatusBarOverlayWindow? How can that be done?
Usually if a button does not respond to a touch it's because the button is outside of the bounds of it's parent's UIView.
Your code does not seem to be the appropriate approach to the problem you're trying to solve. If you just need your window to have a status bar, or you just need to add a button to you current view, the way you're doing it is probably incorrect.
Personally I've never seen anyone instantiate a UIWindow in a viewDidAppear, since the app comes with it's own UIWindow. You should be using a UIView and adding your overlay to it.
As a side note if you were to do it the way you're attempting to, then your window would at least need a frame. So initWithFrame:CGRectZero would be initWithFrame:CGRectMake(0,0,320,480) or something along those lines.
A better way to approach the problem is to instantiate a UIViewController and set it as your rootViewController. Or simply add your button to the current viewController's view.
- (void)viewDidLoad {
UIButton *button = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[button addTarget:self
action:#selector(myMethod:)
forControlEvents:UIControlEventTouchUpInside];
[button setTitle:#"Tap Me" forState:UIControlStateNormal];
[button sizeToFit];
[self.view addSubview:button];
}
I'm using UINavigationController and I have a UIView added to self.window
UIView *myView = [[UIView alloc] init];
myView.frame=CGRectMake(0,20,320,100);//20 is to position view under status bar
[[[self.window subviews] objectAtIndex:0] addSubview:myView];
This is done in AppDelegate.m file.
And this way myView covers up the navigation bar completely.
However, when the screen orientation changes, somehow the navigation bar is brought to the very front (just like what bringSubViewToFront does) and is on top of myView (a portion of view is covered up by navigation bar).
Does anyone know why this happened? Is there a way I can keep myView on top of everything?
If you don't want to show the navigation bar, just hide it:
self.navigationController.navigationBarHidden = YES;
or:
[self.navigationController setNavigationBarHidden:YES animated:YES];
if you want to animate the change from not hidden to hidden.
You can also adjust the "z" coordinate for stuff on the screen
[aview sendSubviewToBack:asubview];
and
[aview sendSubviewToFront:asubview];
I am trying to put a label in a UIBarButtonItem. Here is my viewDidLoad method:
characterCountLabel = [[UILabel alloc] init];
characterCountLabel.text = #"HELLO";
charCountButton = [[UIBarButtonItem alloc]initWithCustomView:characterCountLabel];
Everything is hooked up properly in IB. Why is the label not appearing inside of my UIBarButtonItem?
A couple things come to mind. First, your label has no frame. Try using
characterCountLabel = [[UILabel alloc] initWithFrame:
CGRectMake(0.0f, 0.0, 200.0f, 25.0f)];
Next, can you show us the code where you actually add the bar button item? What are you adding it to--a navigation bar or a toolbar?
When you say everything is hooked up in IB, what are you referring to? The toolbar? Navigation bar? Are you using a navigation controller? If not, then you should be able to just add an item to a navigation bar in IB.
A little more information would help us help you.
In the iPhone maps app there's a toolbar at the bottom of the map view (it contains the Search/Directions segment control and others). When moving from the map view by clicking on a callout, the toolbar slides out with the map view, leaving the next view (a table controller) with no toolbar.
I've tried to do the same thing with [self.navigationController setToolbarHidden:YES animated:YES] in the second view controller, but this gives a strange toolbar sliding down animation, while the map view is sliding to the left.
Using [self.navigationController setToolbarHidden:YES] in viewDidLoad also causes a bad effect (it makes the toolbar disappear the moment the push animation starts, leaving an ugly white space).
I'm assuming the answer to this is to use a nib file, but I'd prefer to do it programatically (if possible).
How can I get the toolbar to "stick" to the map view and slide out with it when I push a new view controller? Thanks.
Gourmet Haus Staudt http://img.skitch.com/20100518-xfubyriig48d3ckaemjg2ay8q.jpg
It turns out the answer is to create the toolbar directly and add it to the view yourself. This is in the code for a UIViewController with a UINavigationController. The frame coordinates can change according to what is on screen.
- (void)viewDidLoad
{
// Add a toolbar to the view
CGRect toolbarFrame = CGRectMake(0, 372, 320, 44);
UIToolbar *myToolbar = [[UIToolbar alloc] initWithFrame:toolbarFrame];
UIBarButtonItem *compassButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"compass.png"]
style:UIBarButtonItemStyleBordered
target:self
action:#selector(zoomToCurrentLocation)];
compassButton.width = 30.0f; // make the button a square shape
[myToolbar setItems:[NSArray arrayWithObject:compassButton] animated:NO];
[compassButton release];
[self.view addSubview:myToolbar];
[super viewDidLoad];
}
I was around this for a day once. Really dont get the programatically answer, but the best way to views to behave correctly, is to do the interface in the interface builder. If you set items for a toolbar in your code like:
[self.navigationController setToolbarItems: control1, control2,..., nil] animated: NO];
with my little experience, I can say that you are saying to the entire application to have a toolbar present when you push new views unless you hide it (or you are using a tabBar), but hiding it you get those unwanted effects.
You can try this:
[self.navigationController setToolbarHidden:YES animated:YES];
in your first controller - (void)viewWillDisappear:(BOOL)animated method,
and setting hidden to NO in - (void)viewWillAppear:(BOOL)animated method in the first controller too.
Hope this helps.
PS: And if you get the programatically answer, let me know! =P
Override the second view controller's -viewWillAppear: method to hide the toolbar.