I'm trying to change the title of UIBarButtonItem when button is clicked. Here's the code that I have... but it doesn't work.
UIBarButtonItem * btnleft1 = [[UIBarButtonItem alloc] initWithTitle:#"Test2"
style:UIBarButtonItemStyleDone
target:self
action:#selector(TestingThis:)];
self.navigationItem.rightBarButtonItems = [NSArray arrayWithObjects:btn, btnleft, btnleft1, nil];
- (void)TestingThis:(id)sender {
if (self.navigationItem.rightBarButtonItem.title == #"Test2") {
self.navigationItem.rightBarButtonItem.title = #"Done";
}
else
{
self.navigationItem.rightBarButtonItem.title = #"Test2";
}
}
So that's the code that I'm using. Please keep in mind that button "btnleft1" is in rightBarButtonItem"S" and not in rightBarButtonItem. If i change it to rightbarbuttonitems.title... it gives me an error.
Late answer but for future reference, you can use custom button to do this :
CGRect frame = CGRectMake(10, 6, 60, 30);
UIButton *customButton = [[UIButton alloc] initWithFrame:frame];
[customButton setTitle:#"Done" forState:UIControlStateNormal];
[customButton setTitle:#"Undone" forState:UIControlStateSelected];
[customButton addTarget:self action:#selector(selectDoneClicked:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *leftButton = [[UIBarButtonItem alloc] initWithCustomView:customButton ];
[self.navigationItem setLeftBarButtonItem:leftButton];
Try setting the title explicitly.
You can do this with code:[(UIBarButtonItem *)item setTitle:#"someText"];
Here's a helpful link: Change the text of a UILabel (UIBarButtonItem) on a toolbar programmatically
Hope this helped!
Related
I added the following to customize my back button in my navigation bar but the image just overlaps/duplicated:
http://i.stack.imgur.com/eyzJC.png
- (void)viewWillAppear:(BOOL)animated
{
//take out the label following the button
UIBarButtonItem *backButton = [[UIBarButtonItem alloc]initWithTitle:#"" style:UIBarButtonItemStylePlain target:nil action:nil];
//set image for back button
[[UINavigationBar appearance] setBackIndicatorImage:[UIImage imageNamed:#"backButtonImage.png"]];
[[UINavigationBar appearance] setBackIndicatorTransitionMaskImage:[UIImage imageNamed:#"backButtonImage.png"]];
self.navigationItem.backBarButtonItem = backButton;
}
It's supposed to be an image of one black arrow facing to the left.
Before it worked fine but now it does this when I simulate it. Any insight and help would be appreciated.
Thank you
This should work for you.
UIButton *back = [UIButton buttonWithType:UIButtonTypeCustom];
back.frame = CGRectMake(0, 0, 50, 44);
back.contentHorizontalAlignment = UIControlContentHorizontalAlignmentLeft;
[back addTarget:self action:#selector(back) forControlEvents:UIControlEventTouchUpInside];
[back setImage:[UIImage imageNamed:#"backButtonImage.png"] forState:UIControlStateNormal];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView: back];
add a function:
-(void) back
{
[self.navigationController popViewControllerAnimated:YES];
}
Add this code
[UINavigationBar appearance].barTintColor = [UIColor colorWithWhite:1.00 alpha:1];
It should solve your problem.
I made a category of UINavigationBar as follow:
UINavigationBar (UINavBar_Category)
I want to create custom back button using this.
I can able to set image by following code:
[[UIBarButtonItem appearance] setBackButtonBackgroundImage:[UIImage imageNamed:#"btn_back.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
Problem can not able to change title of back button.
My try
- (void)didMoveToSuperview
{
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:lang(#"btnBack") style:UIBarButtonItemStylePlain target:nil action:nil];
self.topItem.backBarButtonItem=backButton;
}
Help me to solve this!
Thanks in advance
Try this code instead.. Here a button is first created , its title and image is set and then it is set as left bar button item of navigation controller.
UIButton *backBarButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 100, 29)];
[backBarButton setTitle:#" Log Out" forState:UIControlStateNormal];
[backBarButton setImage:[UIImage
imageNamed:#"leftarrow_ipad.png"] forState:UIControlStateNormal];
[backBarButton addTarget:self action:#selector(backAction:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backBarButton];
self.navigationItem.leftBarButtonItem = backBarButtonItem;
Try this
-(void)viewWillAppear:(BOOL)animated
{
[super viewWillAppear:animated];
if([self.navigationController.viewControllers objectAtIndex:0] != self)
{
UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 30, 26)];
[backButton setImage:[UIImage imageNamed:#"back.png"] forState:UIControlStateNormal]; // some image
[backButton setShowsTouchWhenHighlighted:TRUE];
[backButton addTarget:self action:#selector(popViewControllerWithAnimation) forControlEvents:UIControlEventTouchDown];
UIBarButtonItem *barBackItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.hidesBackButton = TRUE;
self.navigationItem.leftBarButtonItem = barBackItem;
}
}
-(void)popViewControllerWithAnimation
{
[self.navigationController popViewControllerAnimated:YES];
}
I want to add a custom image as left menu item. Thats why I'm using customView else I get my image but in blue.
This is how I achieve it:
UIImageView *menuItemImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"MenuButton"]];
UIBarButtonItem *leftMenuItemButton = [[UIBarButtonItem alloc] initWithCustomView:menuItemImageView];
[leftMenuItemButton setAction:#selector(menuClicked:)];
[leftMenuItemButton setTarget:self];
self.navigationItem.leftBarButtonItem = leftMenuItemButton;
Everything works except when I click my button nothing happens. It never comes in this:
- (void)menuClicked:(id)menuClicked {
NSLog(#"%s menuClicked", __PRETTY_FUNCTION__);
}
Someone could help me?
The problem here seems to be using ImageView , UIBarButtonItem target and action only works if the custom view is UIButton.
Try something like this
UIButton* someBtn = [UIButton buttonWithType: UIButtonTypeInfoLight];
UIBarButtonItem *leftMenuItemButton = [[UIBarButtonItem alloc] initWithCustomView:someBtn];
[leftMenuItemButton setAction:#selector(menuClicked:)];
[leftMenuItemButton setTarget:self];
self.navigationItem.leftBarButtonItem = leftMenuItemButton;
Hope this helps
First, you need to create a custom UIButton and UIBarButtonItem
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button addTarget:self action:#selector(menuClicked:) forControlEvents:UIControlEventTouchUpInside];
[button setImage:[UIImage imageNamed:#"image.png"] forState:UIControlStateNormal];
[button setImage:[UIImage imageNamed:#"image.png"] forState:UIControlStateHighlighted];
UIBarButtonItem *barButton = [[UIBarButtonItem alloc] initWithCustomView:button];
Add the button to navigationBar
[self.navigationItem setLeftBarButtonItems:[NSArray arrayWithObjects:barButton, nil]];
Thanks to n00bprogrammer:
UIBarButtonItem * menuItem = [[UIBarButtonItem alloc] initWithImage:[[UIImage imageNamed:#"MenuButton"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] style:UIBarButtonItemStylePlain target:self action:#selector(menuClicked:)] ;
self.navigationItem.leftBarButtonItem = menuItem;
Both answers point to the right direction.
This is how I got it working:
UIButton *showCalendar = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 30, 30)];
showCalendar.frame = CGRectMake( 0, 0, 40, 30 );
[showCalendar setImage:[UIImage imageNamed:#"calendar"] forState:UIControlStateNormal];
[showCalendar addTarget:self action:#selector(toggleCalendar) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:showCalendar];
Here is the code, add a tap gesture to your imageview:
UIImageView *menuItemImageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:#"MenuButton"]];
UIBarButtonItem *leftMenuItemButton = [[UIBarButtonItem alloc] initWithCustomView:menuItemImageView];
UITapGestureRecognizer *tapGesture =
[[UITapGestureRecognizer alloc] initWithTarget:self
action:#selector(menuClicked:)];
[menuItemImageView addGestureRecognizer:tapGesture];
I have a navigation controller application, and I need to set the custom action for the navigation back bar button. Tried some workarounds and not yet to find a solution.
Tried
UIBarButtonItem *backBarItem = self.navigationItem.leftBarButtonItem;
backBarItem.target = self;
backBarItem.action = #selector(popToHomeViewController);
Result : No effect. Back button pops to just previous viewController in navigation stack
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithTitle:backBarItem.title style:backBarItem.style target:self action:#selector(popViewController)];
self.navigationItem.leftBarButtonItem = customBarItem;
Result : No effect. Back button pops to just previous viewController in navigation stack
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithTitle:#"back" style:backBarItem.style target:self action:#selector(popViewController)];
self.navigationItem.leftBarButtonItem = customBarItem;
Result:Now my selector got invoked perfectly and navigated to desired viewController. Here the issue is that the back button not as like as the native back button. It is not having the bold "<" character as I have not mentioned it. If added < character it needs to be changed for ios 6 compatibility.
Any better solution to ensure ios 6 and ios 7 compatible navigation back button with custom selector?
Try this simple example will help you..
- (void)viewDidLoad {
[super viewDidLoad];
UIImage *buttonImage = [UIImage imageNamed:#"back.png"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:buttonImage forState:UIControlStateNormal];
button.frame = CGRectMake(0, 0, buttonImage.size.width, buttonImage.size.height);
[button addTarget:self action:#selector(back) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithCustomView:button];
self.navigationItem.leftBarButtonItem = customBarItem;
[customBarItem release];
}
-(void)back {
[self.navigationController popViewControllerAnimated:YES];
}
Make sure you have an button image with the size of a navigation bar back button in your resource folder with name back.png
Feel free if any other assistance is required.
Happy Coding!!!!!
Try this
viewController.navigationItem.hidesBackButton = YES;
//set custom image to button if needed
UIImage *backButtonImage = [UIImage imageNamed:#"back"];
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
[button setImage:backButtonImage forState:UIControlStateNormal];
button.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
[button addTarget:viewController action:#selector(back) forControlEvents:UIControlEventTouchUpInside];
UIView *backButtonView = [[UIView alloc] initWithFrame:CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height)];
[backButtonView addSubview:button];
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithCustomView:backButtonView];
viewController.navigationItem.leftBarButtonItem = customBarItem;
and in back method you can customise
- (void)back {
//Your code
}
I created button in navigation bar with this code:
UIBarButtonItem *myButtonEn = [[UIBarButtonItem alloc] initWithTitle:#"EN" style:UIBarButtonItemStyleDone target:self action:#selector(buttonEN:)];
My action for this button:
- (void) buttonEN:(id)sender {
NSLog(#"English language");
}
This works fine but I have to change background and button's style (code below).
UIImage *imageEN = [UIImage imageNamed:#"cys_lang_en.png"];
UIButton *buttonImgEN = [UIButton buttonWithType:UIButtonTypeCustom];
buttonImgEN.bounds = CGRectMake( 0, 0, imageEN.size.width, imageEN.size.height );
[buttonImgEN setImage:imageEN forState:UIControlStateNormal];
UIBarButtonItem *myButtonEn = [[UIBarButtonItem alloc] initWithCustomView:buttonImgEN];
This is axactly what I need, but I need to set action
[myButtonEn setTarget:self];
[myButtonEn setAction:#selector(buttonEN:)];
This code is compiled with no errors but button does not respond.
Does anyone know what is wrong?
try this..
- (void)viewDidLoad
{
[super viewDidLoad];
UIButton *btn = [UIButton buttonWithType:UIButtonTypeCustom];
[btn setFrame:CGRectMake(0.0f, 0.0f, 25.0f, 40.0f)];
[btn addTarget:self action:#selector(buttonEN:) forControlEvents:UIControlEventTouchUpInside];
[btn setImage:[UIImage imageNamed:#"cys_lang_en.png"] forState:UIControlStateNormal];
UIBarButtonItem *eng_btn = [[UIBarButtonItem alloc] initWithCustomView:btn];
self.navigationItem.rightBarButtonItem = eng_btn;
}
-(void)buttonEN:(id)sender
{
NSLog(#"English language");
}
You are Missing action and target for button
You can set using,
[myButtonEn setTarget:self];
[myButtonEn setAction:#selector(buttonEN:)];
You might want to change apperance of this button.
[[UIBarButtonItem appearance] setBackgroundImage:<doneBackgroundImage>
forState:UIControlStateNormal
style:UIBarButtonItemStyleDone
barMetrics:UIBarMetricsDefault];
You don't need to use custom view for image,
Try to use:
UIBarButtonItem *btn = [[UIBarButtonItem alloc] initWithImage:yourImage style:UIBarButtonItemStylePlain target:target action:#selector(selector)];