ios - 图标图像未显示在iOS 7的标签栏中？

我将一页转到另一页，而另一页具有UITabbarcontroller。

具有:

主页2. CutPipe 3.管件4.法兰5.设置

现在显示了这五个名称，但是我没有显示这五个图标图像，并且屏幕显示黑色，如果我执行clearcolor，则屏幕显示灰色。

我还想要如何控制UITabbarcontroller的高度。

我的问题是图标图像未显示在选项卡上。

我还在UITabbar上添加背景图像，还添加了图标图像。但是它没有显示。

这是我的代码。

- (void)viewDidLoad
{
[super viewDidLoad];
// Do any additional setup after loading the view.

// Retrieve the last view name
NSInteger firstValue = [[NSUserDefaults standardUserDefaults] integerForKey:@"firstValue"];

if (firstValue == 10) {
    [self method_Tabs];
}
}


-(void)method_Tabs{


// Set the name of the view
[[NSUserDefaults standardUserDefaults] setInteger:11 forKey:@"firstValue"];




  my_Tabbar = [[UITabBarController alloc] init]; // how to control height of my_Tabbar?
 // my_Tabbar.view.frame=CGRectMake(0, 100, 320,30);   // is there any way to control this
// my_Tabbar.view.backgroundColor = [UIColor redColor];

  my_Tabbar.tabBar.barTintColor = [UIColor clearColor];

 self.tabBarController.tabBar.translucent = false;

 // this will give selected icons and text your apps tint color
 my_Tabbar.tabBar.tintColor = [UIColor blueColor];

 [[UITabBarItem appearance] setTitleTextAttributes:@{NSFontAttributeName : [UIFont fontWithName:@"HelveticaNeue-Bold" size:13.0f],
                                                    NSForegroundColorAttributeName :    [UIColor colorWithRed:.5 green:.5 blue:.5 alpha:1]
                                                    } forState:UIControlStateNormal];




 Homepage_AdvancePipeOffset  *VC_1 = [[Homepage_AdvancePipeOffset alloc]  initWithNibName:nil bundle:nil];
Apo_Cut_Pipe                *VC_2 = [[Apo_Cut_Pipe alloc] initWithNibName:nil bundle:nil];
Apo_Fitting                 *VC_3 = [[Apo_Fitting alloc] initWithNibName:nil bundle:nil];
Apo_Flange                  *VC_4 = [[Apo_Flange alloc] initWithNibName:nil bundle:nil];
Apo_Setting                 *VC_5 = [[Apo_Setting alloc] initWithNibName:nil bundle:nil];




UINavigationController *rvc_Home     = [[UINavigationController alloc] initWithRootViewController: VC_1];
UINavigationController *rvc_CutPipe  = [[UINavigationController alloc] initWithRootViewController: VC_2];
UINavigationController *rvc_Fitting  = [[UINavigationController alloc] initWithRootViewController: VC_3];
UINavigationController *rvc_Flange   = [[UINavigationController alloc] initWithRootViewController: VC_4];
UINavigationController *rvc_Setting  = [[UINavigationController alloc] initWithRootViewController: VC_5];


rvc_Home.tabBarItem.image    =[UIImage imageNamed:@"home.png"];
rvc_CutPipe.tabBarItem.image =[UIImage imageNamed:@"icon_cut_pipe.png"];
rvc_Fitting.tabBarItem.image =[UIImage imageNamed:@"icon_fittings.png"];
rvc_Flange.tabBarItem.image  =[UIImage imageNamed:@"icon_flanges.png"];
rvc_Setting.tabBarItem.image =[UIImage imageNamed:@"icon_settings.png"];


rvc_Home.tabBarItem.title=@"Home";
VC_1.tabBarController.tabBar.tag = 1;

rvc_CutPipe.tabBarItem.title=@"CutPipe";
VC_2.tabBarController.tabBar.tag = 2;

rvc_Fitting.tabBarItem.title=@"Fitting";
VC_3.tabBarController.tabBar.tag = 3;

rvc_Flange.tabBarItem.title=@"Flange";
 VC_4.tabBarController.tabBar.tag = 4;

 rvc_Setting.tabBarItem.title=@"Setting";
 VC_5.tabBarController.tabBar.tag = 5;


NSArray* controllers = [NSArray arrayWithObjects: rvc_Home,rvc_CutPipe,rvc_Fitting,rvc_Flange, rvc_Setting, nil];


[my_Tabbar setViewControllers: controllers animated:NO];
[self.view addSubview:my_Tabbar.view];
my_Tabbar.selectedIndex=4;
[self.navigationController pushViewController:my_Tabbar animated:YES];

}

最佳答案

我建议您将UITabBarController子类化，并在tabBarItem方法中的viewDidLoad中设置自定义图像。

检查此代码:

- (void)viewDidLoad
{
[super viewDidLoad];

UITabBar *tabBar = self.tabBar;

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 setFinishedSelectedImage:[UIImage imageNamed:@"search-icon"] withFinishedUnselectedImage:[UIImage imageNamed:@"search-icon"]];


[item0 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[item1 setFinishedSelectedImage:[UIImage imageNamed:@"tag-icon"] withFinishedUnselectedImage:[UIImage imageNamed:@"tag-icon"]];
[item1 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[item2 setFinishedSelectedImage:[UIImage imageNamed:@"add-icon"] withFinishedUnselectedImage:[UIImage imageNamed:@"add-icon"]];
[item2 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];
[item3 setFinishedSelectedImage:[UIImage imageNamed:@"profile-icon"] withFinishedUnselectedImage:[UIImage imageNamed:@"profile-icon"]];
[item3 setImageInsets:UIEdgeInsetsMake(0, 0, 0, 0)];

self.selectedIndex=2;
}

在我看来是这样的:

关于ios - 图标图像未显示在iOS 7的标签栏中？，我们在Stack Overflow上找到一个类似的问题：https://stackoverflow.com/questions/21986978/