This is now very common but I cannot find a way to add a badge to a custom, or non-system, UIBarButton Item.
The following will add a badge to a systemUIBarButtonItem. But it does not work for one created from an image, i.e. a custom one. I would like to avoid creating a dependency on a separate class and would really like to find something similar to this that works for a custom button. Thanks in advance for any suggestions.
This creates badge for systemButton such as a search button:
UIBarButtonItem *searchButton = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemSearch target:self action:#selector(searchButtonPressed)];
int badgeint = 4;
NSString *badgestring = [NSString stringWithFormat:#"%d",badgeint];
self.navigationItem.rightBarButtonItems = #[searchButton];
self.navigationItem.rightBarButtonItem.badgeValue = badgestring;
The same code for a custom button--there is no system button for notification so I need to use a custom image--does not produce the badge.
UIBarButtonItem *notificationButton = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"notification-32.png"] style:UIBarButtonItemStyleBordered target:self action:#selector(notificationButtonPressed)];
int badgeint = 4;
NSString *badgestring = [NSString stringWithFormat:#"%d",badgeint];
self.navigationItem.rightBarButtonItems = #[notificationButton];
self.navigationItem.rightBarButtonItem.badgeValue = badgestring;
Note: the reason I have barbuttonitems is that sometimes I use more than one)
Thanks for any suggestions
EDIT:
I found out that I made a stupid error--I set the value two different times. I thought the second would override the first, but apparently it confused it. There is no difference between system and custom buttons. I did discover, however, that if you have multiple buttons, the badge will always appear at the right of the group. Using this method, you can't seem to put the badge on a bar button item second in from right for example.
is there a way to move MKUserTrackingBarButtonItem when it is attached to the navigationItem.rightBarButtonItem?
Right now it looks like this:
and I want it to look more like in the maps by Apple (edit: be closer to the edge):
Is there a way to do this? I've tried ImageInsets with no luck.
Edit: Here is the code in viewDidLoad
MKUserTrackingBarButtonItem *trackingButton = [[MKUserTrackingBarButtonItem alloc] initWithMapView:self.mapView.mapView];
trackingButton.imageInsets = UIEdgeInsetsMake( 0, -10, 0, 0 );
self.navigationItem.rightBarButtonItem = trackingButton;
button1.imageEdgeInsets = UIEdgeInsetsMake(-4, 0, 0, 0);
The answer here: Can I change the position of navigationbar item?
Beware, you change insets of the button that to be assigned to the rightBarButtonItem, not the rightBarButtonItem itself.
All right, I found a working solution based on accepted answer to this question: How to Edit Empty Spaces of Left, Right UIBarButtonItem in UINavigationBar [iOS 7]
So in my code it looks like this
UIBarButtonItem *negativeSpacer = [[UIBarButtonItem alloc]
initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
target:nil action:nil];
negativeSpacer.width = -7.5;
MKUserTrackingBarButtonItem *trackingButton = [[MKUserTrackingBarButtonItem alloc] initWithMapView:self.mapView.mapView];
[self.navigationItem setRightBarButtonItems:[NSArray arrayWithObjects:negativeSpacer, trackingButton, nil] animated:NO];
Although it doesn't work as expected for iPhone 6 Plus, it's best solution for now. Thanks everyone for their help.
I use the following line to create a UIBarButtonItem with a custom icon named import2x.png:
UIBarButtonItem *btnImport = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"import2x.png"] style:UIBarButtonItemStylePlain target:self action:#selector(btnImport)];
The icon is a png that looks like this:
But here's how it looks when it is run on the simulator - a solid red square:
The icon is created using a transparent (alpha=0) background.
Any suggestions? TIA.
The image in the link provided has an opaque background. If that is the same image you're using that's why it look's like a solid block.
It should be created with a transparent background, like this:
i.e. in Photoshop you should be able to see the background pattern like this:
Try this one. Its working fine. I also share my output screenshot. u have to use small size of icon . but icon should be visible, no problem.
UIBarButtonItem *doneBtn = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"Login-pin.png"] landscapeImagePhone:[UIImage imageNamed:#"Login-pin.png"] style:UIBarButtonItemStylePlain target:self action:#selector(PickerCancelClick:)];
The search image is my output.
self.navigationItem.rightBarButtonItem = [[UIBarButtonItem alloc] initWithImage:[UIImage imageNamed:#"g122.png"] style:UIBarButtonItemStylePlain target:self action:#selector(menuClieckd:)];
This worked for me
In order to get the trash image displayed in a standard toolbar on iOS. I am using the following code:
UIBarButtonItem *tempTBButn=[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemTrash target:nil action:nil];
UIImage *trashImg=tempTBButn.image;
But it does not work. The result I get in trashImg is just nil.
What should I do to obtain the result I want? That is to have the trash icon in trashImg.
The image property is only set when you create a UIBarButtonItem with one of the custom image init methods like:
UIBarButtonItem *customImageBarButtonItem = [[UIBarButtonItem alloc]initWithImage:[UIImage imageNamed:#"yourImage"] style:UIBarButtonItemStylePlain target:self action:#selector(barButtonItemPressed:)];
The image property defaults to nil when you use the initWithBarButtonSystemItem: method. Your best bet is to just use a trash icon of your own, or work with just having the standard icon on the nav.
Currently, I am trying to set the next/previous buttons on my keyboard toolbar to the new, sleek iOS 7 back button/forward buttons that get put in navigation controllers to go back. Here is what I am trying. How can I use the system bar button item instead of the boring static text?
[self setToolbar:[[UIToolbar alloc] initWithFrame:self.frame]];
[self.toolbar setBarStyle:UIBarStyleDefault];
[self.toolbar setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth)];
[self addSubview:self.toolbar];
[self setSegmentedControl:[[UISegmentedControl alloc] initWithItems:#[ NSLocalizedStringFromTable(#"Previous", #"BSKeyboardControls", #"Previous button title."),
NSLocalizedStringFromTable(#"Next", #"BSKeyboardControls", #"Next button title.") ]]];
Here is what it looks like now:
Here is what I want it to look like:
Any ideas on how to access those system items without actually using images? I know its the exact iOS 7 back bar button item, I just don't know how to access it in a tool bar. I've searched everywhere. If it helps, i'm using BSKeyboardControls.
EDIT: To make it look exactly like the second image, use the images provided by Joshua, and save them as back#2x.png, and forward#2x.png into your xcode proj. Use Chun's code, but make sure to call the method for getting the images like this: imageNamed:#"back", and not #"back#2x". You now have iOS 7 back and forward buttons :)
EDIT2: To get it to look exactly like the next/previous arrow buttons use the following customizations in the correct implementation methods:
[self.segmentedControl setWidth:50 forSegmentAtIndex:0];
[self.segmentedControl setWidth:38 forSegmentAtIndex:1];
negativeSeparator.width = -19;
EDIT3: The toolbar with the < > arrows comes by default with all UIWebViews, and it appears when you tap a textfield.
If anyone is interested in a sample project, let me know, and i'll upload a link!
EDIT4: As of May 24, 2014, BSKeyboardControls now has this functionality by default.
These are the images used in toolbar, e.g. the back and forward button images:
Use the icons shared by Joshua and then try with below piece of code and you will be good to go. I have not added the done button here.
UIImage *backImage = [[UIImage imageNamed:#"backImage"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
UIImage *forwardImage = [[UIImage imageNamed:#"forward"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
self.segmentedControl = [[UISegmentedControl alloc] initWithItems:#[backImage, forwardImage]];
[self.segmentedControl addTarget:self action:#selector(segmentedControlChangedState:) forControlEvents:UIControlEventValueChanged];
self.segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar;
self.segmentedControl.tintColor = [UIColor clearColor];
UIBarButtonItem *aSegmentedControlBarButtonItem = [[UIBarButtonItem alloc] initWithCustomView:self.segmentedControl];
[self setItems:#[aSegmentedControlBarButtonItem, self.flexibleSpace]];
1) Download latest files from: https://github.com/simonbs/BSKeyboardControls
2) Import the images for back/next buttons. These can be whatever you want and you can set the appropriate sizes so that they look good. Joshua has a good set. I have mine saved as "keyboardBack.png" and "keyboardForward.png"
3) In BSKeyboardControls.m, update initWithFields:fields. Here you can do some customization like setting the width of your back/next buttons. I removed the Done button here too to follow your screenshot but you can add it back.
- (id)initWithFields:(NSArray *)fields
{
if (self = [super initWithFrame:CGRectMake(0.0f, 0.0f, 320.0f, 44.0f)])
{
// Creates toolbar
[self setToolbar:[[UIToolbar alloc] initWithFrame:self.frame]];
[self.toolbar setBarStyle:UIBarStyleDefault];
[self.toolbar setAutoresizingMask:(UIViewAutoresizingFlexibleLeftMargin | UIViewAutoresizingFlexibleRightMargin | UIViewAutoresizingFlexibleWidth)];
[self addSubview:self.toolbar];
// Import images
UIImage *backImage = [[UIImage imageNamed:#"keyboardBack"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
UIImage *forwardImage = [[UIImage imageNamed:#"keyboardForward"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
// Create segmentedcontrol
self.segmentedControl = [[UISegmentedControl alloc] initWithItems:#[backImage, forwardImage]];
self.segmentedControl.tintColor = [UIColor clearColor];
// Set button widths
[self.segmentedControl setWidth:50 forSegmentAtIndex:0];
[self.segmentedControl setWidth:50 forSegmentAtIndex:1];
// Other BSKeyboardControls stuff
[self.segmentedControl addTarget:self action:#selector(segmentedControlValueChanged:) forControlEvents:UIControlEventValueChanged];
[self.segmentedControl setMomentary:YES];
[self.segmentedControl setEnabled:NO forSegmentAtIndex:BSKeyboardControlsDirectionPrevious];
[self.segmentedControl setEnabled:NO forSegmentAtIndex:BSKeyboardControlsDirectionNext];
[self setSegmentedControlItem:[[UIBarButtonItem alloc] initWithCustomView:self.segmentedControl]];
[self setVisibleControls:(BSKeyboardControlPreviousNext)];
[self setFields:fields];
}
return self;
}
4) The left padding on the toolbar is a bit too much, so you can fix it by adding a negative separator in toolbarItems: in BSKeyboardControls.m:
- (NSArray *)toolbarItems
{
NSMutableArray *items = [NSMutableArray arrayWithCapacity:3];
if (self.visibleControls & BSKeyboardControlPreviousNext)
{
UIBarButtonItem *negativeSeperator = [[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFixedSpace
target:nil
action:nil];
negativeSeperator.width = -12;
[items addObject:negativeSeperator];
[items addObject:self.segmentedControlItem];
}
if (self.visibleControls & BSKeyboardControlDone)
{
[items addObject:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:UIBarButtonSystemItemFlexibleSpace target:nil action:nil]];
[items addObject:self.doneButton];
}
return items;
}
Note: I probably don't have the button widths and paddings to the exact specs, but you can tweak it to your liking!
If you don't mind living on the edge you could use Apple's undocumented system items to achieve the iOS 7 look. Here are left and right bar button items.
[self setDoneButton:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:105 target:nil action:nil]];
[self setDoneButton:[[UIBarButtonItem alloc] initWithBarButtonSystemItem:106 target:nil action:nil]];
Source: http://iphonedevwiki.net/index.php/UIBarButtonItem
You can use this great tool by #iftekhar and customise IQSegmentedNextPrevious according to your need for giving images instead of next previous button.
Using Xcode 7.3, you can also just enter a symbol as the title for the Bar Item. This works both in code and in Interface Builder:
Place your cursor where you want the symbol to appear (eg, title box in IB or within quotes in code).
In Xcode's menu, click Edit, then Emoji & Symbols. (Alternatively, press control-command-space to bring up the list of characters.)
In the search box, type less or greater.
Then, select the symbol you want.
The less-than and greater-than symbols are colored blue in the toolbar by default.
In code:
backButton.title = "＜"
In IB:
Use this: https://github.com/simonbs/BSKeyboardControls
But it uses the segmented control which got flattened in iOS 7.
Edit:
Just change the text of the segments:
[self setSegmentedControl:[[UISegmentedControl alloc] initWithItems:#[#"<",#">") ]]];
This may not be the most elegant. (Not even sure this exact code compiles, but you see the point)