I have a UIToolBar that is created in XCode. In it, there is a UISegmentControl. Based on when one action is pressed, a new view is added as a subView that has a UIToolBar, but without the UISegmentControl. On this view, I add a UIBarButtonItem to go back that looks like this:
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back" style:UIBarButtonItemStyleBordered target:self action:#selector(GoBack)];
NSArray *barItems = [NSArray arrayWithObject:backButton];
[self.MainToolbar setItems:barItems];
[backButton release];
How do I remove this UIBarButtonItem once my selector(GoBack) is called? I assume I put the code in that method to remove the UIBarButtonItem. I tried this, but it did not work.
[self.MainToolbar setItems:[NSArray arrayWithObject:nil]];
I wasn't sure how to remove it, and how or if this affects the UISegmentControl that is in the UIToolBar created in the .xib.
I have seen code about using the navigationItem, but I'm not sure how the UIToolBar relates to the navigationItem as well. Thanks!
Related
I want to create three buttons in right side of Navigation bar.I am using storyboard for creating the UIView Controller.
In DetailViewController am Embedded a Navigation bar using storyboard and then creating three UIBarButtonItem programetically and then adding these in an array then assigning it to navigationitem.This is working fine.
UIBarButtonItem *Button1 = [[UIBarButtonItem alloc]initWithTitle:#"Button1" style:UIBarButtonItemStylePlain
target:self action:#selector(Button1Clicked:)] ;
UIBarButtonItem *Button2 = [[UIBarButtonItem alloc] initWithTitle:#"Button2" style:UIBarButtonItemStylePlain
target:self action:#selector(Button2Clicked:)] ;
UIBarButtonItem *Button3 = [[UIBarButtonItem alloc] initWithTitle:#"Button3" style:UIBarButtonItemStylePlain
target:self action:#selector(Button3Clicked::)] ;
self.navigationItem.rightBarButtonItems =
[NSArray arrayWithObjects:Button1,Button2,Button3, nil];
I have another viewcontroller this is a modalviewcontreoller. I am creating the view controller using storyboard and adding a navigationbar not a navigationcontroller.Then using the same method for adding buttons to navigtion bar, but not shown any buttons.
Plese anyone know how to solve this issue.?
If your viewController is in UINavigationController you can simply use
self.navigationItem ...
which works fine as I see. But if your viewController (your modal in this case) is not in UINavController, you have to access UINavigationItem in this way:
someNavigationBar.topItem ...
So, if you set an IBOutlet to your navigationBar, your code should look like this one:
UIBarButtonItem *Button1 = ...
UIBarButtonItem *Button2 = ...
UIBarButtonItem *Button3 = ...
yourNavigationBar.topItem.rightBarButtonItems = [NSArray arrayWithObjects:Button1, Button2, Button3, nil];
Please add UINavigationBar instead of UINavigationItem
I am in great trouble....How can i set next and previous button/arrow at my segmented bar...if anyone need brief about my problem then please see this link...How can i add a next and previous button at the segmented Controller?
i have attached an image to understand the problem...so anybody help me please....
NOTE THAT: In my current project it has more than 5 buttons to add at the segmented bar so when i will press next/previous arrow then segmented bar should be move from his place.If my question is not clear to you then please see my another link....
Thanks in Advance
EDIT:
UIBarButtonItem *previousBarButtonItem = [[UIBarButtonItem alloc] //init];
initWithTitle:#"<"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(previousBarButtonAction:)];
self.navigationItem.leftBarButtonItem = previousBarButtonItem;
[previousBarButtonItem release];
UIBarButtonItem *nextBarButtonItem = [[UIBarButtonItem alloc] //init];
initWithTitle:#">"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(nextBarButtonAction:)];
self.navigationItem.rightBarButtonItem = nextBarButtonItem;
[nextBarButtonItem release];
//This Portion For UIToolbar
topToolBar = [UIToolbar new];
topToolBar.barStyle = UIBarStyleDefault;
[topToolBar sizeToFit];
topToolBar.frame = CGRectMake(50, 410, 280, 50);
//Add buttons
UIBarButtonItem *systemItem1 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAdd
target:self
action:#selector(pressButton1:)];
UIBarButtonItem *systemItem2 = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemAction
target:self
action:#selector(pressButton2:)];
UIBarButtonItem *systemItem3 = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemCamera
target:self action:#selector(pressButton3:)];
//Use this to put space in between your toolbox buttons
UIBarButtonItem *flexItem = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:nil
action:nil];
//Add buttons to the array
NSArray *items = [NSArray arrayWithObjects: systemItem1, flexItem, systemItem2, flexItem, systemItem3, nil];
//release buttons
[systemItem1 release];
[systemItem2 release];
[systemItem3 release];
[flexItem release];
//add array of buttons to toolbar
[topToolBar setItems:items animated:NO];
self.navigationItem.titleView = topToolBar;
this is my current coding position now i have 4 buttons in the uitoolbar but only 3 button can see so i want to move this toolbar when i will press next or previous button to see the others button whose are out of frame of uitoolbar??
EDIT:
I able to scroll the navigation bar item using uiview animation but now my problem is when i press the next/prev button then it is moving from the current place according to the changing of the coordinate of the uitoolbar and moving over the pre/next baritem frame whose are not in the uitoolbar items. but it should be wothin a uiview and should change the coordinate within the uiview not out of the view...now tell me what can i do for this problem.
Firstly in figure the NavigationBar you are seeing is actually UIToolBar. Unfortunately it is not possible to add anymore controls on the UINavigationBar. But you can achieve exactly same UI with UIToolBar where you can add any controls.
So to achieve this use UIToolBar and not UINavigationBar. Also use UIBarButtonItem with custom title to achieve Next and Previous functionality.
EDIT
Here are few links for example of UIToolBar
http://www.codeproject.com/Articles/43658/How-to-Make-a-Toolbar-with-UIToolbar
http://osmorphis.blogspot.com/2009/05/multiple-buttons-on-navigation-bar.html
http://atastypixel.com/blog/making-uitoolbar-and-uinavigationbars-background-totally-transparent/
But this all explains using codes. Instead using Interface Builder, it becomes too easy to use UIToolBar (if coding is not so important).
I think this is being slightly overcomplicated- can you not just set the text of the two UIBarButtonItems to "<" and ">"?
I'm looking at some other iPad apps that have the capability to add extra icons into the leftBarButtonItem and rightBarButtonItem for UINavigationController. Here is a picture of one taken from nngroup.com:
In order to do something like this, are they subclassing UINavigationController or adding a category for it? Or are they doing something different? I kind of just wanted the general approach of how to do something like this, but don't need all the code since I'm sure it's a lot of work. Thanks.
You can create a toolbar object and add the buttons to that toolbar and then set the custom view of the right bar button item or left bar button item as this toolbar.
A sample implementation is like this.
UIToolbar * toolbar = [[UIToolbar alloc]initWithFrame:CGRectMake(0,0,160, 44.5)];
UIBarButtonItem *spacer = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace
target:nil
action:nil];
[buttons addObject:spacer];
[spacer release];
UIBarButtonItem * deleteButton = [[UIBarButtonItem alloc]
initWithTitle:#"Delete"
style:UIBarButtonItemStyleBordered
target:self
action:#selector(deletePressed)];
// Button style is the default style
[buttons addObject:deleteButton];
[deleteButton release];
UIBarButtonItem * barItem = [[UIBarButtonItem alloc] initWithTitle:#"Logout" style:UIBarButtonItemStyleBordered
target:[Y3AppDelegate mainApplicationInstance] action:#selector(logout)];
[buttons addObject:barItem];
[barItem release];
// put the buttons in the toolbar and release them
[toolbar setItems:buttons animated:YES];
[buttons release];
// place the toolbar into the navigation bar as Right Button item
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc]
initWithCustomView:toolbar] autorelease];
[toolbar release];
One thing to note here is that you may have to change the tint color of the toolbar to match with that of the navigation bar. Hope this answer helps you.
You can hide Navigation bar and instead of that show an image of navigation bar and then place buttons on it :))
I need two buttons on the left side of a nav bar. The only way I've figured out how to do that is by first putting them into a UIToolbar and then setting the leftBarButtonItem to that.
If I do this it works as normal (you can see it highlight when tapped):
UIBarButtonItem* myBtn = [[UIBarButtonItem alloc] initWithTitle:#"Button" style:UIBarButtonItemStyleBordered target:self action:#selector(doSomething:)];
self.navigationItem.leftBarButtonItem = myBtn;
But if I do it like this, the button action still happens but there is no highlight (no visual feedback that you are tapping the button):
NSMutableArray* buttons = [[NSMutableArray alloc] initWithCapacity:2];
UIBarButtonItem* myBtn = [[UIBarButtonItem alloc] initWithTitle:#"Button" style:UIBarButtonItemStyleBordered target:self action:#selector(doSomething:)];
UIBarButtonItem* myBtn2 = [[UIBarButtonItem alloc] initWithTitle:#"Button2" style:UIBarButtonItemStyleBordered target:self action:#selector(doSomethingElse:)];
[buttons addObject:myBtn];
[buttons addObject:myBtn2];
UIToolbar* toolbar = [[UIToolbar alloc] initWithFrame:CGRectMake(0, 0, 133, 44)];
[toolbar setItems:buttons animated:NO];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:toolbar];
Any idea why this causes the buttons to not highlight when touched?
I dont think the UIBarButtonItem object will be highlighted when touched up. Even for default back button in the navigation bar dosent highlight when touched up. It works in that way only . Not sure but you can try using UISegmentedControl with the single segment . It might create the highlighted illusion and would look like barbutton only.
In your selector function (e.g. doSomething), set the tintColor property of the button to your desired highlighted color if pressed, and the default if unpressed. And make sure the highlight color of your button is different than the default color so that you know that it is highlighted.
As per the Apple Docs, the function of showsTouchWhenHighlighted is:
A Boolean value that determines whether tapping the button causes it to glow.
but this is only for UIButton. I don't believe UIBarButtonItem has a highlight option.
Note that UIBarButtonItem inherits from UIBarItem which inherits from NSObject, not UIButton, so you can expect different behavior.
I want to add Toolbar on the upperside of PickerView and want to add one BarButton on the Toolbar Dynamically and on the click event of that button i want to dismiss the Picker as well as toolbar so please help me in this task...Thanks in Advance..
You can create the UIToolBar and its buttons this way -
UIToolbar * toolBar = [[UIToolbar alloc] initWithFrame:CGRectMake(0.0f, 324.0f, 320.0f, 44.0f)];
[toolBar setBarStyle:UIBarStyleBlackTranslucent];
UIBarButtonItem *flexibleSpace = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil];
doneBtn = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemDone target:self action:#selector(dismissPicker:)];
[toolBar setItems:[NSArray arrayWithObjects:flexibleSpace, doneBtn, nil] animated:YES];
[flexibleSpace release];
[editButton release];
You can add the done button and call a method on tap of this button, in this method you can dismiss the UIPickerView.
Mr. Ankit - Try to build your objects using through Interface builder because there is no need to maintain all the objects which are being constructed interface builder ( according to me - yet not sure - please add comment, if I am wrong anywhere ).
See,the Attached Snapshots to place Buttons on Your toolbar. Just make connections to your class IBOutlet objects.
I know - you have mentioned "Dynamic" word in your question.
You just need to add subview in to your view.
For example
- (void)viewDidLoad {
[super viewDidLoad];
[self.view addSubview:toolBarView]; // add whenever required.
// alternate option
toolBarView.hidden=YES; // or NO whatever required.
}
alt text http://img694.imageshack.us/img694/7516/snap1i.png