I have a barbuttonitem that made programmatically above a navigation controller. I want to display it's title and background also a highlighted effect when i press that bar button.
Here's the code I use :
NSArray *segmentText = [segmentTextMutable copy];
UIImage *image = [[[UIImage alloc] init] autorelease];
image = [UIImage imageNamed:#"bunga.jpg"];
_docSegmentedControl = [[UISegmentedControl alloc] initWithItems:segmentText];
_docSegmentedControl.selectedSegmentIndex = 0;
_docSegmentedControl.autoresizingMask = UIViewAutoresizingFlexibleHeight;
_docSegmentedControl.segmentedControlStyle = UISegmentedControlStyleBezeled;
[_docSegmentedControl addTarget:self action:#selector(docSegmentAction:) forControlEvents:UIControlEventValueChanged];
[_docSegmentedControl setBackgroundColor:[UIColor colorWithPatternImage:image]];
UIView *barBackground = [[UIView alloc] initWithFrame:CGRectMake(0, 0, 40, 40)];
UIButton *barButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *buttonImage = [UIImage imageNamed:#"button.png"];
UIImage *buttonPressedImage = [UIImage imageNamed:#"buttonPressed.png"];
[[barButton titleLabel] setFont:[UIFont boldSystemFontOfSize:12.0]];
[barButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[barButton setTitleColor:[UIColor whiteColor] forState:UIControlStateHighlighted];
[barButton setTitleShadowColor:[UIColor colorWithWhite:1.0 alpha:0.7] forState:UIControlStateNormal];
[barButton setTitleShadowColor:[UIColor clearColor] forState:UIControlStateHighlighted];
[[barButton titleLabel] setShadowOffset:CGSizeMake(0.0, 1.0)];
CGRect buttonFrame = CGRectMake(0, 0, 110.0, 40);
//buttonFrame.size.width = 110.0;
//buttonFrame.size.height = buttonFrame.size.height;
[barButton setFrame:buttonFrame];
[barButton setBackgroundImage:buttonImage forState:UIControlStateNormal];
[barButton setBackgroundImage:buttonPressedImage forState:UIControlStateHighlighted];
[barButton setTitle:docSegmentFileName forState:UIControlStateNormal];
[barButton addTarget:self action:#selector(docSegmentAction:) forControlEvents:UIControlEventTouchUpInside];
[barBackground addSubview:barButton];
UIBarButtonItem *segmentItem = [[UIBarButtonItem alloc] initWithCustomView:_docSegmentedControl];
self.navItem.leftBarButtonItem = segmentItem;
self.navItem.leftBarButtonItem.title = #"";
[self.navItem.leftBarButtonItem setCustomView:barBackground];
Unfortunately, this doesn't work. Instead of showing the UIBarButtonItem, it simply vanishes (it becomes 100% transparant). When I leave out the setCustomView method, the UIBarButtonItem appears, but is not customized. How can i solve this problem?
thank's...
You are removing the UISegmentedControl from the UIBarButtonItem when you call [self.navItem.leftBarButtonItem setCustomView:barBackground];. You need to modify the UISegmentedControl not the UIBarButtonItem.
Related
I have added custom UIbarButtonItems on toolbar. Everything is created through NIB file. I see the images are stretched. My images are 20x20 and 40x40 for retina. They are png files and I ensured they dont contain any drop shadow and use anti-aliasing. Currently the toolbar looks like this.
If you see, the same images appear sharp when not added as a barbuttonItem but just as imageview. How can I fix this.
Could you try to create your UIBarButtonItems in your viewDidLoad method?
Here is how I do with a UINavigationBar and all images looks fine:
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *rightButtonImage = [UIImage imageNamed:#"img1.png"];
[rightButton setImage:rightButtonImage forState:UIControlStateNormal];
rightButton.frame = CGRectMake(0.0, 7.0, rightButtonImage.size.width, rightButtonImage.size.height);
[rightButton addTarget:self action:#selector(method1) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.rightBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:rightButton] autorelease];
UIButton *leftButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *leftButtonImage = [UIImage imageNamed:"img2.png"];
[leftButton setImage:leftButtonImage forState:UIControlStateNormal];
leftButton.frame = CGRectMake(10.0, 7.0, leftButtonImage.size.width, leftButtonImage.size.height);
[leftButton addTarget:self action:#selector(method2) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:leftButton] autorelease];
method1 and method2 are void methods: -(void)method
and to add 2 buttons on the right side, I do something like this:
UIButton *rightButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *rightButtonImage = [UIImage imageNamed:#"img3"];
[rightButton setImage:rightButtonImage forState:UIControlStateNormal];
rightButton.frame = CGRectMake(0.0, 7.0, rightButtonImage.size.width, rightButtonImage.size.height);
[rightButton addTarget:self action:#selector(method3) forControlEvents:UIControlEventTouchUpInside];
UIButton *middleRightButton = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *middleRightButtonImage = [UIImage imageNamed:#"img4"];
[middleRightButton setImage:middleRightButtonImage forState:UIControlStateNormal];
middleRightButton.frame = CGRectMake(0.0, 7.0, middleRightButtonImage.size.width, middleRightButtonImage.size.height);
[middleRightButton addTarget:self action:#selector(method4) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.rightBarButtonItems = [NSArray arrayWithObjects:[[[UIBarButtonItem alloc] initWithCustomView:rightButton] autorelease], [[[UIBarButtonItem alloc] initWithCustomView:middleRightButton] autorelease], nil];
For UIToolbar you have to add items like this:
[toolbar setItems:[NSArray arrayWithObject:item1, item2, item3, item4, nil]];
I want to change the backbutton appearance for my backbutton in my navigation bar. For that I have this piece of code.
UIImage *backButtonImage = [UIImage imageNamed:#"backbutton.png"];
UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom];
backbutton.backgroundColor = [UIColor colorWithPatternImage:backButtonImage];
backbutton.titleLabel.text = #"back";
backbutton.titleLabel.textColor= [UIColor colorWithRed:50/255.0
green:158/255.0
blue:218/255.0
alpha:1.0];
backbutton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
UIBarButtonItem * back = [[UIBarButtonItem alloc] initWithCustomView:backbutton];
[backbutton addTarget:self action:#selector(back_Clicked) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = back;
But still I get the standard back button. Any help ?
Put your code to customize back button before pushing that viewController to the stack. And set BackBarButtonItem , not leftBarButtonItem.
UIImage *image = [UIImage imageNamed:#"backbutton.png"];
UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom];
backbutton.bounds = CGRectMake( 0, 0, image.size.width, image.size.height );
[backbutton setImage:image forState:UIControlStateNormal];
backbutton.titleLabel.textColor = [UIColor blueColor];
UIBarButtonItem *back = [[UIBarButtonItem alloc] initWithCustomView:backbutton];
[[self navigationItem] setBackBarButtonItem: back];
[self.navigationController pushViewController:yourViewControllerObject animated:YES];
using bellow code for your requirement..
- (void)viewDidLoad
{
///write your code
UIImage *backButtonImage = [UIImage imageNamed:#"backbutton.png"];
UIButton *backbutton = [UIButton buttonWithType:UIButtonTypeCustom];
//[backbutton setImage:backButtonImage forState:UIControlStateNormal];//this line for set only image on button
[backbutton setBackgroundImage:backButtonImage forState:UIControlStateNormal];
[backbutton setTitle:#"Back" forState:UIControlStateNormal];
backbutton.frame = CGRectMake(0, 0, backButtonImage.size.width, backButtonImage.size.height);
UIBarButtonItem * back = [[UIBarButtonItem alloc] initWithCustomView:backbutton];
[backbutton addTarget:self action:#selector(back_Clicked) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = back;
}
when back button clicked bellow method call and you will go to previous viewcontroller
-(void)back_Clicked{
[self.navigationController popViewControllerAnimated:YES];
}
Use
self.navigationItem.leftBarButtonItem = back;
Instead of
self.navigationController.navigationItem.leftBarButtonItem = back;
[self.navigationItem setLeftBarButtonItem:[[UIBarButtonItem alloc] initWithCustomView:[self buttonWithImage:#"backButton" heighlightImageName:#"backButton" buttonFrame:CGRectMake(2, 1, 30, 30) selectorName:#selector(buttonBackClicked:) target:self]]];
- (UIButton*)buttonWithImage:(NSString*)normalImageName heighlightImageName:(NSString*)heighlightImageName buttonFrame:(CGRect)buttonFrame selectorName:(SEL)selectorName target:(id)target
{
UIButton *tempButton = [UIButton buttonWithType:UIButtonTypeRoundedRect];
[tempButton setFrame:buttonFrame];
[tempButton addTarget:target action:selectorName forControlEvents:UIControlEventTouchUpInside];
[tempButton setImage:[self getImageFromResource:normalImageName] forState:UIControlStateNormal];
[tempButton setImage:[self getImageFromResource:heighlightImageName] forState:UIControlStateHighlighted];
return tempButton;
}
- (UIImage*)getImageFromResource:(NSString*)imageName
{
return [UIImage imageWithContentsOfFile:[[NSBundle mainBundle] pathForResource:imageName ofType:#"png"]];
}
IButton *favButton = [[UIButton alloc] init];
[favButton setImage:[UIImage imageNamed:#"unselected.png"] forState:UIControlStateNormal];
[favButton addTarget:self action:#selector(favouriteButtonClicked:)
forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *button = [[UIBarButtonItem alloc]
initWithCustomView:favButton];
self.navigationItem.rightBarButtonItem = button;
[button release];
[favButton release];
Below code is working fine in my application. But that leftbarbuttonitem is invisible. And I can't set background image to leftBarButtonItem. I did some thing wrong, but I don't know what is the mistake? Is it possible to make visible and set background image?
UIImageView *NavigationBarImage =[[UIImageView alloc]initWithFrame:CGRectMake(0, 0, 320, 44)];
NavigationBarImage.image=[UIImage imageNamed:#"mapbutton.png"];
[self.navigationController.navigationBar addSubview:NavigationBarImage];
self.navigationItem.hidesBackButton = YES;
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonItemStyleBordered target:self action:#selector(goBack)];
self.navigationItem.leftBarButtonItem = backButton;
-(void)goBack
{
[self.navigationController popViewControllerAnimated:YES];
}
If you want to add a backgroundImage to your navigation item you have to add a custom button, like bellow:
UIButton *tempButton = [UIButton buttonWithType:UIButtonTypeCustom];
tempButton.frame = CGRectMake(0, 0, 50, 30);
tempButton.showsTouchWhenHighlighted = YES;
tempButton.backgroundColor = [UIColor clearColor];
[tempButton setBackgroundImage:[UIImage imageNamed:#"back.png"] forState:UIControlStateNormal];
[tempButton setTitle:#"Back" forState:UIControlStateNormal];
[tempButton addTarget:self action:#selector(goBack) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *backBtn = [[UIBarButtonItem alloc]initWithCustomView:tempButton];
self.navigationItem.leftBarButtonItem = backBtn;
And to add a background Image to navigation bar you can use the following code
[self.navigationController.navigationBar setBackgroundImage:[UIImage imageNamed:#"header.png"] forBarMetrics:UIBarMetricsDefault];
UIButton *home = [UIButton buttonWithType:UIButtonTypeCustom];
UIImage *homeImage = [UIImage imageNamed:#"YOUR_IMAGE.png"];
[home setBackgroundImage:homeImage forState:UIControlStateNormal];
[home addTarget:self action:#selector(your_Action)
forControlEvents:UIControlEventTouchUpInside];
home.frame = CGRectMake(0, 0, 69, 26);
UIBarButtonItem *button2 = [[UIBarButtonItem alloc] initWithCustomView:home];
[[self navigationItem] setLeftBarButtonItem:button2];
[button2 release];
button2 = nil;
I can't seem to add an image to this UIBarButtonItem without it crashing when touched:
UIBarButtonItem *backButton = [[UIBarButtonItem alloc] initWithTitle:#"Back"
style:UIBarButtonItemStylePlain target:nil action:nil];
self.navigationItem.backBarButtonItem = backButton;
[backButton release];
this code adds an image, but it crashes when touched because of an incompatible pointer types assigning to UIBarButtonItem * from UIButton:
//Setup Custom Button
UIButton *button = [[UIButton alloc] init];
button.frame = CGRectMake(0,0,44,44);
// [button addTarget:self action:#selector(showInfo) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.backBarButtonItem = button;
[button setBackgroundImage:imgIcon forState:UIControlStateNormal];
self.navigationItem.leftBarButtonItem = [[[UIBarButtonItem alloc] initWithCustomView:button] autorelease];
[button release];
thanks for any help
To call
self.navigationItem.leftBarButtonItem = [CustomBarButton createNavBackBarButtonItemWithTitle:NSLocalizedString(#"Back", #"") target:self action:#selector(actionBack:)];
CustomBarButton has createNavBackBarButtonItemWithTitle class function
+(UIBarButtonItem *)createNavBackBarButtonItemWithTitle:(NSString *)t target:(id)tgt action:(SEL)a
{
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
// Since the buttons can be any width we use a thin image with a stretchable center point
UIImage *buttonImage = [[UIImage imageNamed:#"back_button_up.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];
UIImage *buttonPressedImage = [[UIImage imageNamed:#"back_button_over.png"] stretchableImageWithLeftCapWidth:5 topCapHeight:0];
[[button titleLabel] setFont:[UIFont boldSystemFontOfSize:12.0]];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
[button setTitleColor:[UIColor blackColor] forState:UIControlStateHighlighted];
//[[button titleLabel] setShadowOffset:CGSizeMake(0.0, 1.0)];
CGRect buttonFrame = [button frame];
buttonFrame.size.width = [t sizeWithFont:[UIFont boldSystemFontOfSize:12.0]].width + 24.0;
buttonFrame.size.height = buttonImage.size.height;
[button setFrame:buttonFrame];
[button setBackgroundImage:buttonImage forState:UIControlStateNormal];
[button setBackgroundImage:buttonPressedImage forState:UIControlStateHighlighted];
[button setTitle:[NSString stringWithFormat:#" %#",t] forState:UIControlStateNormal];
[button addTarget:tgt action:a forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *buttonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
return [buttonItem autorelease];
}
You have to set the buttonStyle to custom not a UIBarButtonItemStylePlain
and then [barbuttonitem setCustomView:anImageView];
I have a UIToolbar.
If I create a UIBarButton like this, it works:
UIBarButtonItem *button = [[UIBarButtonItem alloc] initWithImage:iOB style:UIBarButtonItemStylePlain target:self action:#selector(myStuff)];
[button setTitle:#"Hi"];
If I create the UIBarButton like this, cause I want it to be colored:
UIImageView *vUP = [[UIImageView alloc] initWithImage:iUP];
UIBarButtonItem *UPButton = [[UIBarButtonItem alloc] initWithCustomView:vUP];
[UPButton setAction:#selector(anotherStuff)];
[UPButton setTitle:#"Hi";
[UPButton setTarget:self];
[vUP release];
The button shows, WITHOUT title and will doesn't respond to any touch...
am I missing something?
UIImage* image3 = [UIImage imageNamed:#"plain_btn-75-30.png"];
CGRect frameimg = CGRectMake(0, 0, image3.size.width, image3.size.height);
UIButton *someButton = [[UIButton alloc] initWithFrame:frameimg];
[someButton setBackgroundImage:image3 forState:UIControlStateNormal];
[someButton addTarget:self action:#selector(backButtonPress:)forControlEvents:UIControlEventTouchUpInside];
[someButton setShowsTouchWhenHighlighted:YES];
[someButton setTitle:#"Back" forState:UIControlStateNormal];
someButton.titleLabel.font = [UIFont fontWithName:#"Helvetica" size:13];
[someButton setTitleColor:[UIColor blackColor] forState:UIControlStateNormal];
UPButton =[[UIBarButtonItem alloc] initWithCustomView:someButton];
If you want image and title both then image must be set as a background image with title.
Use a UIButton instead of the UIImageView as a UIImageView does not respond to touch events.
You will, under no circumstance get a title as you provided a custom view.