UITabBar not showing selected item images in ios 7

问题:

The icons show fine in ios 6 but not in ios 7. I'm setting the selected state in the viewController viewDidLoad method. When the user selects a tab bar item the image disappears. Here is my code:

UITabBar *tabBar = self.tabBarController.tabBar;
if ([UITabBar instancesRespondToSelector:@selector(setSelectedImageTintColor:)]) {
    [self.tabBarController.tabBar setSelectedImageTintColor:[UIColor whiteColor]];
}
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];
UITabBarItem *item1 = [tabBar.items objectAtIndex:1];
UITabBarItem *item2 = [tabBar.items objectAtIndex:2];
UITabBarItem *item3 = [tabBar.items objectAtIndex:3];
[item0 setTitle:@"Home"];
[item1 setTitle:@"Calendar"];
[item2 setTitle:@"News"];
[item3 setTitle:@"My Events"];
[item0 setFinishedSelectedImage:[UIImage imageNamed:@"homeIconSelected.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"home2.png"]];
[item1 setFinishedSelectedImage:[UIImage imageNamed:@"Calendar"] withFinishedUnselectedImage:[UIImage imageNamed:@"CalendarIconSelected"]];
[item2 setFinishedSelectedImage:[UIImage imageNamed:@"NewsIconSelected"] withFinishedUnselectedImage:[UIImage imageNamed:@"News"]];
[item3 setFinishedSelectedImage:[UIImage imageNamed:@"EventsIconSelected"] withFinishedUnselectedImage:[UIImage imageNamed:@"Events"]];
[item1 imageInsets];
[item2 imageInsets];
[item3 imageInsets];

回答1:

You need to use tabBarItem initWithTitle:image:selectedImage

[[UITabBarItem alloc] initWithTitle:@"title" image:image selectedImage:imageSel];

in conjunction with changing the UIImage rendering mode:

imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal

or (to apply parent views template tint mask, this option is default for Tab bar Items unless you opt out with the above rendering mode)

imageWithRenderingMode:UIImageRenderingModeAlwaysTemplate

here is a code sample for one tab bar item :-

UIImage *musicImage = [UIImage imageNamed:@"music.png"];
UIImage *musicImageSel = [UIImage imageNamed:@"musicSel.png"];

musicImage = [musicImage imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
musicImageSel = [musicImageSel imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.musicViewController.tabBarItem = [[UITabBarItem alloc] initWithTitle:@"Music" image:musicImage selectedImage:musicImageSel];

Hope this helps

回答2:

Set bar item image's render mode to original can solve this problem. This can be done by using images in the .xcassets, so you don't have to write lots of codes.

First step, drap&drop your bar item images to Assets.xcassets.

Second step, choose the bar item image, and change [Render As] to [Original Image]

ps: I usually set the TabBarController's tab bar items all by story board to avoid writing lots of code.

回答3:

Add these lines of codes in

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
UITabBarController *tabBarController = (UITabBarController *)self.window.rootViewController;
UITabBar *tabBar = tabBarController.tabBar;
UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];
UITabBarItem *tabBarItem4 = [tabBar.items objectAtIndex:3];

tabBarItem1.selectedImage = [[UIImage imageNamed:@"selectimg"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem1.image = [[UIImage imageNamed:@"deselectimg"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem1.title = @"xxxx";

tabBarItem2.selectedImage = [[UIImage imageNamed:@"selectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem2.image = [[UIImage imageNamed:@"deselectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem2.title = @"xxxx";

tabBarItem3.selectedImage = [[UIImage imageNamed:@"selectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem3.image = [[UIImage imageNamed:@"deselectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem3.title = @"xxxx";

tabBarItem4.selectedImage = [[UIImage imageNamed:@"selectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem4.image = [[UIImage imageNamed:@"deselectimg"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
tabBarItem4.title = @"xxxx";

return YES;
}

this works for me... and hope for the best...

回答4:

No answers helped fixing this issue. The main reason is that my TabBarController wasn't my RootViewController.

The solution I used for Storyboards, and I just clicked my UITabButton and I added a runtime attribute for selectedImage:

For each of the different views associated with the UITabController.

回答5:

After spending a couple of hours trying to make my custom tabbar to work for both iOS 6 & 7, that's what worked for me...

UITabBarController *tabBarController = (UITabBarController *)[[self window] rootViewController];

UITabBar *tabBar = tabBarController.tabBar;
UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];
UITabBarItem *tabBarItem4 = [tabBar.items objectAtIndex:3];

tabBarItem1.title = @"Home";
tabBarItem2.title = @"Map";
tabBarItem3.title = @"Weather";
tabBarItem4.title = @"Info";

if ([[[UIDevice currentDevice] systemVersion] floatValue] < 7) {
    [tabBarItem1 setFinishedSelectedImage:[UIImage imageNamed:@"cyexplore_home_white.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"cyexplore_home_black.png"]];
    [tabBarItem2 setFinishedSelectedImage:[UIImage imageNamed:@"cyexplore_cloud_white.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"cyexplore_cloud_black.png"]];
    [tabBarItem3 setFinishedSelectedImage:[UIImage imageNamed:@"cyexplore_map_white.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"cyexplore_map_black.png"]];
    [tabBarItem4 setFinishedSelectedImage:[UIImage imageNamed:@"cyexplore_info_white.png"] withFinishedUnselectedImage:[UIImage imageNamed:@"cyexplore_info_black.png"]];
} else {
    tabBarItem1.selectedImage = [[UIImage imageNamed:@"cyexplore_home_white"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
    tabBarItem1.image = [[UIImage imageNamed:@"cyexplore_home_black"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

    tabBarItem2.selectedImage = [[UIImage imageNamed:@"cyexplore_cloud_white"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
    tabBarItem2.image = [[UIImage imageNamed:@"cyexplore_cloud_black"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

    tabBarItem3.selectedImage = [[UIImage imageNamed:@"cyexplore_map_white"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
    tabBarItem3.image = [[UIImage imageNamed:@"cyexplore_map_black"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

    tabBarItem4.selectedImage = [[UIImage imageNamed:@"cyexplore_info_white"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
    tabBarItem4.image = [[UIImage imageNamed:@"cyexplore_info_black"]imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
}

UIImage* tabBarBackground = [UIImage imageNamed:@"tabbar.png"];
[[UITabBar appearance] setBackgroundImage:tabBarBackground];
[[UITabBar appearance] setSelectionIndicatorImage:[UIImage imageNamed:@"tabbar_selected.png"]];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor blackColor], UITextAttributeTextColor, nil] forState:UIControlStateNormal];
[[UITabBarItem appearance] setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIColor whiteColor], UITextAttributeTextColor, nil] forState:UIControlStateSelected];

回答6:

if you are working with storyboards you have to put the identifier : "custom" in Navigation Controller.

then :

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Assign tab bar item with titles
    UITabBarController *tabBarController = (UITabBarController *)self.window.rootViewController;
    UITabBar *tabBar = tabBarController.tabBar;
    UITabBarItem *tabBarItem1 = [tabBar.items objectAtIndex:0];
    UITabBarItem *tabBarItem2 = [tabBar.items objectAtIndex:1];
    UITabBarItem *tabBarItem3 = [tabBar.items objectAtIndex:2];

    (void)[tabBarItem1 initWithTitle:nil image:[UIImage imageNamed:@"home.png"] selectedImage:[UIImage imageNamed:@"home_selected.png"]];
    (void)[tabBarItem2 initWithTitle:nil image:[UIImage imageNamed:@"home.png"] selectedImage:[UIImage imageNamed:@"home_selected.png"]];
    (void)[tabBarItem3 initWithTitle:nil image:[UIImage imageNamed:@"home.png"] selectedImage:[UIImage imageNamed:@"home_selected.png"]];

    // Change the tab bar background
    UIImage* tabBarBackground = [UIImage imageNamed:@"tabbar.png"];
    [[UITabBar appearance] setBackgroundImage:tabBarBackground];



    return YES;
}

This works for me.

回答7:

None of the answers worked for me - I am using MonoTouch but if you set the TintColor property of the UITabBar itself that will highlight the selected image with that color. In obj c it may be setTintColor function.

回答8:

You should write to the function:

UIImage* tab_image = [UIImage imageNamed:@"tab_image.png"];
UIImage* tab_image_selected = [UIImage imageNamed:@"tab_image_selected.png"];

tab_image = [tab_image imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
tab_image_selected = [tab_image_selected imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

self.tabBarItem.image = tab_image;
self.tabBarItem.selectedImage = tab_image_selected;

I hope this helps

回答9:

I had the same problem with Xcode 6.0.1 (6A317), seems to be a bug with Interface builder. However, i've managed to solve it by leaving selected image empty in interface builder then at each viewDidLoad in my view controllers i did insert:

[self.navigationController.tabBarItem setSelectedImage:[UIImage imageNamed:@"imagename-selected"]];

it works well now, showing my selectedImage and with global tint mask.

回答10:

Based on the answer from 132206, I made this method for AppDelegate, called from application:didFinishLaunchingWithOptions: with:

[self configureSelectedImages];

It obviously requires a strict naming convention for your tab images, but can also be re-used without editing. To state the obvious - name your selected tab bar images TabbarXXXSelected, where XXX equals the title of the tab bar item.

- (void)configureSelectedImages
{
    UITabBarController *tabBarController = (UITabBarController *)self.window.rootViewController;
    UITabBar *tabBar = tabBarController.tabBar;

    for (UITabBarItem *tabBarItem in [tabBar items]) {
        NSString *selectedImage = [NSString stringWithFormat:@"Tabbar%@Selected", [tabBarItem title]];
        (void)[tabBarItem initWithTitle:[tabBarItem title] image:[tabBarItem image] selectedImage:[UIImage imageNamed:selectedImage]];
    }
}

回答11:

In your first view controller's .h file, I added the following: @property (weak, nonatomic) IBOutlet UITabBarItem *mapViewTabBarItem; @property (weak, nonatomic) IBOutlet UITabBarItem *profileViewTabBarItem; @property (weak, nonatomic) IBOutlet UITabBarItem *notificationViewTabBarItem;

(note that the mapViewTabBarItem was linked by ctrl dragging the actual tab bar item into the list of property declarations at the top of the .h file)

Next, in the same view controller's .m file in the viewDidLoad, add the following:

self.tabBarItem = [self.tabBarController.tabBar.items objectAtIndex:0];
_mapViewTabBarItem.selectedImage = [[UIImage imageNamed:@"@2x-map-icon-selected.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
self.tabBarItem.image = [[UIImage imageNamed:@"@2x-map-icon.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

_profileViewTabBarItem = [self.tabBarController.tabBar.items objectAtIndex:1];
_profileViewTabBarItem.selectedImage = [[UIImage imageNamed:@"@2x-profile-icon-selected.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
_profileViewTabBarItem.image = [[UIImage imageNamed:@"@2x-profile-icon.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

_notificationViewTabBarItem = [self.tabBarController.tabBar.items objectAtIndex:2];
_notificationViewTabBarItem.selectedImage = [[UIImage imageNamed:@"@2x-notifications-icon-selected.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];
_notificationViewTabBarItem.image = [[UIImage imageNamed:@"@2x-notifications-icon.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal ];

回答12:

I had a similar problem. I created the tab bar in storyboard and added all the images through the interface builder menus, none in code.

My fix was actually simple: under the attributes inspector window in IB, the Tab Bar Item field for "Selected Image" should be blank, and the Bar Item field for "Image" should be filled with the image you want.

I am running Xcode 6.0.1 and testing with iOS 8.0.2 devices.

回答13:

Try this:

UITabBarItem *item1 = [[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"Icon-Small-50.png"] tag:100];
UITabBarItem *item2 = [[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"image-50.png"] tag:200];
UITabBarItem *item3 = [[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"Icon-clip-50.png"] tag:300];
UITabBarItem *item4 = [[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"Icon-color-50.png"] tag:400];
UITabBarItem *item5 = [[UITabBarItem alloc] initWithTitle:@"" image:[UIImage imageNamed:@"Icon-lock-50.png"] tag:500];

[item1 setSelectedImage:[[UIImage imageNamed:@"Icon-Small-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[item1 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

[item2 setSelectedImage:[[UIImage imageNamed:@"image-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[item2 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

[item3 setSelectedImage:[[UIImage imageNamed:@"Icon-clip-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[item3 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

[item4 setSelectedImage:[[UIImage imageNamed:@"Icon-color-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[item4 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

[item5 setSelectedImage:[[UIImage imageNamed:@"Icon-lock-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
[item5 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

item1.image = [[UIImage imageNamed:@"Icon-Small-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

item2.image = [[UIImage imageNamed:@"image-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

item3.image = [[UIImage imageNamed:@"Icon-clip-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
item4.image = [[UIImage imageNamed:@"Icon-color-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];
item5.image = [[UIImage imageNamed:@"Icon-lock-50.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal];

回答14:

Use the code below to fix the image issue in iOS7:

[[UITabBarItem alloc] initWithTitle:@"title" image:[[UIImage imageNamed:@"YOUR_IMAGE.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal] selectedImage:[[UIImage imageNamed:@"YOUR_SEL_IMAGE.png"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];

回答15:

I had the same issue. But working with StoryBoards prevented me from changing anything in the code. Leaving the image empty in the storyboard removed this obstacle for me. However putting the initWithTitle in the viewWillAppear method of the tab's viewcontroller gave me odd behaviour. First getting the selected image required an additional click and images did not show up for the non-initial tabs.

For me fixing this was adding the following code to the AppDelegate in the DidFinishLoadingWithOptions (similar to 132206 and Amitabha):

NSArray * vcs = [(UITabBarController*)self.window.rootViewController viewControllers];
UIViewController *tab0 = [[(UINavigationController*)[vcs objectAtIndex:0] viewControllers] objectAtIndex:0];
tab0.title = NSLocalizedString(@"Time", nil);
tab0.tabBarItem =  [[UITabBarItem alloc] initWithTitle:tab0.title image:[UIImage imageNamed:@"Recents.png"] selectedImage:[UIImage imageNamed:@"RecentsSolid.png"]];
UIViewController *tab1 = [[(UINavigationController*)[vcs objectAtIndex:1] viewControllers] objectAtIndex:0];
tab1.title = NSLocalizedString(@"Expense", nil);
tab1.tabBarItem = [[UITabBarItem alloc] initWithTitle:tab1.title image:[UIImage imageNamed:@"Euro.png"] selectedImage:[UIImage imageNamed:@"EuroSolid.png"]];

回答16:

It is easy and clean solution of category for UITabBar Items.

Just create category and use the Runtime Attribute and refer it from category like below.

#import "UITabBarItem+CustomTabBar.h"

@implementation UITabBarItem (CustomTabBar)

-(void)setValue:(id)value forKey:(NSString *)key {
    if([key isEqualToString:@"tabtitle"]){
        if([value isEqualToString:@"contacts"]) {
            [self setSelectedImage:[[UIImage imageNamed:@"contacts-selected"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        } else if([value isEqualToString:@"chat"]) {
            [self setSelectedImage:[[UIImage imageNamed:@"chat-selected"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        } else if([value isEqualToString:@"groupchat"]) {
            [self setSelectedImage:[[UIImage imageNamed:@"groupchat-selected"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        } else if([value isEqualToString:@"settings"]) {
            [self setSelectedImage:[[UIImage imageNamed:@"settings-selected"] imageWithRenderingMode:UIImageRenderingModeAlwaysOriginal]];
        }
    }
    [self setTitleTextAttributes:[NSDictionary dictionaryWithObjectsAndKeys:[UIFont fontWithName:@"Roboto-Regular" size:12.0f], NSFontAttributeName, [UIColor grayColor], NSForegroundColorAttributeName, nil] forState:UIControlStateNormal];
}

@end

回答17:

Old questions, but going to add my solution here as well for Xamarin.iOS/C# and those who want to set the images via Interface builder. I set the Selected Image and Image attributes via Interface Builder. Then in code I defined an InitTabs() method like this:

public void InitTabs(){
        HomeTab.SelectedImage = HomeTab.SelectedImage.ImageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal);
        HomeTab.Image = HomeTab.Image.ImageWithRenderingMode(UIImageRenderingMode.AlwaysOriginal);
}

Call InitTabs() in ViewDidLoad and now the proper image will appear for both the selected and unselected state.

回答18:

Here is a Swift solution for Swift-Guys :)

class CustomTabBar: UITabBar {

    required init?(coder aDecoder: NSCoder) {
        super.init(coder: aDecoder)

        let btnNames = ["Title1", "Title2", "Title3", "Title4"]

        for (item, name) in zip(items!, btnNames) {
            item.image = UIImage(named: "bar\(name)Btn")?.imageWithRenderingMode(.AlwaysOriginal)
            item.selectedImage = UIImage(named: "bar\(name)SelectedBtn")?.imageWithRenderingMode(.AlwaysOriginal)
            item.title = name
            item.setTitleTextAttributes([NSForegroundColorAttributeName: UIColor.blackColor()], forState: .Normal)
            item.setTitleTextAttributes([NSForegroundColorAttributeName: UIColor.redColor()], forState: .Selected)
        }
    }

}

What is exactly going on here:

• Make array of btn titles and consider image file names to match them
• Make For loop over tab bar items and just created btn titles array
• Set barButtonItem's image and its selectedImage from the array
• Set title text from the array
• Set title text color for states .Normal and .Selected

Setting text colors part is important if you don't want to keep the item's title color gray for .Normal and blue for .Selected, as it is by default. This is often actual when you consider custom images for tab bar items.

回答19:

Swift version of showing selected and unselected images and title with UIAppearance API In your Appdelegate.m copy following code if you have tab base app.following code assume you have 4 tab bar.

let tabBarController: UITabBarController = (self.window!.rootViewController as! UITabBarController)

    let tabBar:UITabBar = tabBarController.tabBar

    let tabBarItem1:UITabBarItem = tabBar.items![0]
    let tabBarItem2:UITabBarItem = tabBar.items![1]
    let tabBarItem3:UITabBarItem = tabBar.items![2]
    let tabBarItem4:UITabBarItem = tabBar.items![3]

    tabBarItem1.title = "Home";
    tabBarItem2.title = "Maps";
    tabBarItem3.title = "My Plan";
    tabBarItem4.title = "Settings";

    tabBarItem1.selectedImage = UIImage(named: "home_selected.png")!
    tabBarItem2.selectedImage = UIImage(named: "maps_selected.png")!
    tabBarItem3.selectedImage = UIImage(named: "myplan_selected.png")!
    tabBarItem4.selectedImage = UIImage(named: "settings_selected.png")!

     tabBarItem1.image =  UIImage(named: "home.png")!
     tabBarItem2.image =  UIImage(named: "maps.png")!
     tabBarItem3.image =  UIImage(named: "myplan.png")!
     tabBarItem4.image =  UIImage(named: "settings.png")!


    let tabBarBackground: UIImage = UIImage(named: "tabbar.png")!
    UITabBar.appearance().backgroundImage = tabBarBackground
    UITabBar.appearance().selectionIndicatorImage = UIImage(named: "tabbar_selected.png")!


    UITabBarItem.appearance().setTitleTextAttributes([
        NSForegroundColorAttributeName : UIColor.whiteColor()
        ]
        , forState: .Normal)
    let titleHighlightedColor: UIColor = UIColor(red: 153 / 255.0, green: 192 / 255.0, blue: 48 / 255.0, alpha: 1.0)
    UITabBarItem.appearance().setTitleTextAttributes([
        NSForegroundColorAttributeName : titleHighlightedColor
        ]
        , forState: .Highlighted)

回答20:

After trying all of the other answers and struggling as they failed, I found the answer. The other answers, , don't seem to work in current swift version. In Swift 2.3, this works for me. For those who are still having trouble, try this:

tabBarItem.image = UIImage(named: "image_name")
searchVC.tabBarItem.selectedImage = UIImage(named:
     "image_name_when_selected")?.imageWithRenderingMode(.AlwaysOriginal)