Customizing UIBarButtonItem in Objective C - ios

I am trying to add image to UIBarButtonItem in IOS App. I am able to add it but the problem is image is taking the size of the button. But I want button to be of the size of the image with borders included in it.

UIButton *customButton = [UIButton buttonWithType:UIButtonTypeCustom];
[customButton setBackgroundImage:[UIImage imageNamed:#"customButtonBgImage.png"] forState:UIControlStateNormal];
[customButton setImage:[UIImage imageNamed:#"customButtonImage.png"] forState:UIControlStateNormal];
[customButton addTarget:self action:#selector(buttonPressed:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithCustomView:customButton];
And the you can add barButtonItem where-ever you need it.

Related

iOS navigation toolbar button with image and title

I need a toolbar button with small text under button icon.
I'm trying on viewDidLoad to do:
UIButton* customButton = [UIButton buttonWithType:UIButtonTypeCustom];
[customButton setImage:[UIImage imageNamed:#"menu-search-active.png"] forState:UIControlStateNormal];
[customButton setTitle:#"Button" forState:UIControlStateNormal];
[customButton sizeToFit];
UIBarButtonItem* sb = [[UIBarButtonItem alloc] initWithCustomView:customButton];
[self setToolbarItems:[NSArray arrayWithObject:sb]];
But my button have only icon, no title visible.

How to get this UIBarButtonItem in the picture?

I want to get a button with short lines on UINavigationBar.
Please, see that on this image:
What is it? How to get it?
You'll want to instantiate a UIBarButtonItem with a custom view.
UIButton *button = [UIButton buttonWithType:UIButtonTypeCustom];
button.frame = CGRectMake(0, 0, 24, 24);
[button setImage:[UIImage imageNamed:#"your_image_filename"] forState:UIControlStateNormal];
[button addTarget:self action:#selector(buttonTappedMethod) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithCustomView:button];
[self.navigationItem setLeftBarButtonItem:barButtonItem];
This creates a UIButton with a supplied image. That UIButton is then set as a custom view for a UIBarButtonItem. Then, just set the barButtonItem on your navigation item.

changing text of custom navigation bar item

I am creating a custom UINavigationBar BarButtonItem as follows:
// Set up bar button items
UIButton *backButton = [[UIButton alloc] initWithFrame:CGRectMake(0, 0, 35.0f, 35.0f)];
[backButton setImage:[UIImage imageNamed:#"myimg.png"] forState:UIControlStateNormal];
[backButton addTarget:self action:#selector(myselector) forControlEvents:UIControlEventTouchUpInside];
self.navigationItem.leftBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:backButton];
This is working perfectly, but when I go to set the title of the UIButton or BarButtonItem, it won't show up. Any suggestions?
Tried...
[backButton setTitle:#"Edit" forState:UIControlStateNormal];
[backButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];
And...
self.navigationItem.leftBarButtonItem.title = #"Edit";
without luck.
The problem is that image and title use same viewspace for display.
So when we use image with title first it show image and than title (right side of image).
If size of UIButton is same as image than we can't see Title.
A simple solution is set image in background. So try this:
[backButton setBackgroundImage:[UIImage imageNamed:#"myimg.png"] forState:UIControlStateNormal];
UIImage *image = [UIImage imageNamed:#"myimg.png"];
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
[backButton setBackgroundImage:image forState:UIControlStateNormal];
[backButton setTitle:#"Edit" forState:UIControlStateNormal];
[backButton setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal]
backButton.frame=CGRectMake(0, 0, 35.0f, 35.0f);
UIBarButtonItem *barButton= [[[UIBarButtonItem alloc] initWithCustomView:backButton] autorelease];
self.toolbar.items = [NSArray arrayWithObject:barButton];

Custom background for default system items

i want to use the default bar button items like
UIBarButtonItem *editFavoritesButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemEdit target:self action:#selector(startEndEditing:)];
The problem is that i want to change the background of these button but
[editFavoritesButton setBackgroundImage:[UIImage imageNamed:#"barbuttonPlain.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
does not to the trick in this case.
UPDATED:
The idea is not creating a custom button since you need to handle the translations for this case.On the other hand i want to user compose and other sort of default images.
Replace your code from...
[editFavoritesButton setBackgroundImage:[UIImage imageNamed:#"barbuttonPlain.png"] forState:UIControlStateNormal barMetrics:UIBarMetricsDefault];
as like this...
[editFavoritesButton setImage:[UIImage imageNamed:#"barbuttonPlain.png"]];
Use this code to create custom UIBarButtonItem:
UIButton *mybutton = [UIButton buttonWithType:UIButtonTypeCustom];
[mybutton setFrame:CGRectMake(0.0f, 0.0f, 25.0f, 25.0f)];
[mybutton addTarget:self action:#selector(mybuttonFunction) forControlEvents:UIControlEventTouchUpInside];
[mybutton setImage:[UIImage imageNamed:#"myImage.png"] forState:UIControlStateNormal];
UIBarButtonItem *random = [[UIBarButtonItem alloc] initWithCustomView:mybutton];
Hope this will help you.
You can try like this If you have any question you can ask..
UIButton *backButton = [UIButton buttonWithType:UIButtonTypeCustom];
backButton.frame = CGRectMake(0, 0, 83, 44);
backButton.adjustsImageWhenHighlighted=NO;
[backButton addTarget:self action:#selector(backMethod)
forControlEvents:UIControlEventTouchDown];
[backButton setImage:[UIImage imageNamed:#"img.png"]
forState:UIControlStateNormal];
UIBarButtonItem *barLeftInfoButton = [[UIBarButtonItem alloc] initWithCustomView:backButton];
self.navigationItem.leftBarButtonItem = barLeftInfoButton;
Add a custom button first and then add it to the UIBarButtonItem.
UIImage *buttonImage = [UIImage imageNamed:#"mainButton.png"];
//create the button and assign the image
self.yourButton = [UIButton buttonWithType:UIButtonTypeCustom];
[self.yourButton setFrame:CGRectMake(5,7,buttonImage.size.width,buttonImage.size.height)];
[self.yourButton setBackgroundImage:buttonImage forState:UIControlStateNormal];
self.yourButton.titleLabel.font = [UIFont boldSystemFontOfSize:12];
[self.yourButton setTitle:#"title" forState:UIControlStateNormal];
[self.yourButton addTarget:self action:#selector(startEndEditing:) forControlEvents:UIControlEventTouchUpInside];
// add image view
[self.navBar addSubview:self.yourButton];
//create a UIBarButtonItem with the button as a custom view
UIBarButtonItem *customBarItem = [[UIBarButtonItem alloc] initWithCustomView:self.yourButton];
self.navigationItem.leftBarButtonItem = customBarItem;
Please try to use this one ....
UIButton *editFavoritesButton = [[UIButton alloc] initWithFrame:CGRectMake(0.0f, 0.0f, 55.0f, 30.0f)];
[editFavoritesButton setBackgroundColor:[UIColor clearColor]];
[editFavoritesButton setBackgroundImage:[UIImage imageNamed:#"barbuttonPlain.png"] forState:UIControlStateNormal];
[editFavoritesButton addTarget:self action:#selector(startEndEditing:) forControlEvents:UIControlEventTouchUpInside];
UIBarButtonItem *leftBtn = [[UIBarButtonItem alloc] initWithCustomView:editFavoritesButton];
[self.navigationItem setLeftBarButtonItem:leftBtn];

How to Customize the title of the customized UIBarButtonItem

I have customized the UIBarButtonItem like this:
UIButton *loginBtn = [UIButton buttonWithType:UIButtonTypeCustom];
loginBtn.frame = CGRectMake(0, 0, 46.0, 34.0);
[loginBtn setImage:[UIImage imageNamed:#"loginBtn.png"] forState:UIControlStateNormal];
[loginBtn addTarget:self action:#selector(loginPressed:) forControlEvents:UIControlEventTouchUpInside];
[loginBtn setTitle:#"Login" forState:UIControlStateNormal];
UIBarButtonItem *finishedButton = [[UIBarButtonItem alloc] initWithCustomView:loginBtn];
[finishedButton setStyle:UIBarButtonItemStylePlain];
self.navigationItem.rightBarButtonItem = finishedButton;
But now i can not see the title with "Login", it's blank on the button, it seems that the "setTitle:" did not work.
Could anybody tell me why? Thx!
setTitle: did work, you just haven't read the documentation carefully enough. Use setBackgroundImage: instead of setImage: as the latter overrides setTitle:, but the former doesn't (and that's what you want). So instead of
[loginBtn setImage:[UIImage imageNamed:#"loginBtn.png"] forState:UIControlStateNormal];
write
[loginBtn setBackgroundImage:[UIImage imageNamed:#"loginBtn.png"] forState:UIControlStateNormal];
^
+- background!
and you should be fine to go.

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