Question

我刚刚开始使用iOS开发，我只是在玩atm。

我正在尝试将默认的标签栏按钮转换为更自定义的内容。

经过一番环顾，我发现你可以为每个按钮创建自定义状态，所以我做了：

UIImage *selectedImage0 = [UIImage imageNamed:@"first.png"];
UIImage *unselectedImage0 = [UIImage imageNamed:@"second.png"];

UITabBar *tabBar = self.tabBarController.tabBar;
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];

[item0 setFinishedSelectedImage:selectedImage0 withFinishedUnselectedImage:unselectedImage0];

然而，我无法摆脱默认按钮，它会改变图像，但它不会改变我的整个按钮。

我还需要做些什么吗？

UIViewController *viewController1 = [[FirstViewController alloc]     initWithNibName:@"FirstViewController" bundle:nil];
UIViewController *viewController2 = [[SecondViewController alloc] initWithNibName:@"SecondViewController" bundle:nil];

self.tabBarController = [[UITabBarController alloc] init];    
self.tabBarController.viewControllers = [NSArray arrayWithObjects:viewController1, viewController2, nil];
self.window.rootViewController = self.tabBarController;
[self.window makeKeyAndVisible];

UIImage *selectedImage0 = [UIImage imageNamed:@"first.png"];
UIImage *unselectedImage0 = [UIImage imageNamed:@"second.png"];

UITabBar *tabBar = self.tabBarController.tabBar;
UITabBarItem *item0 = [tabBar.items objectAtIndex:0];

[item0 setFinishedSelectedImage:selectedImage0 withFinishedUnselectedImage:unselectedImage0];

Answer 1

检查以下链接（大部分标签栏控制器的自定义）

Answer 2

这里我创建了一个自定义标签栏，我拍摄的图像都是一个常量文件。在这里，您可以根据自己的方便用“foo.png”替换图像。这里的serivceImg，contactImg等是在.h文件中声明的UIImageView。另外，不要忘记在.h文件中添加UITabBarControllerDelegate作为委托。

-(void)setUpTabBar {

tabBar = [[UITabBarController alloc] init];

Services *firstViewController = [[Services alloc]init];
firstViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:1];
UINavigationController *firstNavController = [[UINavigationController alloc]initWithRootViewController:firstViewController];

ContactUs *secondViewController = [[ContactUs alloc]init];
secondViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:2];
UINavigationController *secondNavController = [[UINavigationController alloc]initWithRootViewController:secondViewController];

Bookings *thirdViewController = [[Bookings alloc]init];
thirdViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemFavorites tag:3];
UINavigationController *thirdNavController = [[UINavigationController alloc]initWithRootViewController:thirdViewController];

Reward *fourthViewController = [[Reward alloc]init];
fourthViewController.tabBarItem = [[UITabBarItem alloc]initWithTabBarSystemItem:UITabBarSystemItemRecents tag:4];
UINavigationController *fourthNavController = [[UINavigationController alloc]initWithRootViewController:fourthViewController];

tabBar.viewControllers = [[NSArray alloc] initWithObjects:firstNavController, secondNavController, thirdNavController, fourthNavController, nil];
tabBar.delegate=self;
tabBar.selectedIndex=0;

[firstNavController release];
[firstViewController release];

[secondNavController release];
[secondViewController release];

[thirdNavController release];
[thirdViewController release];

[fourthNavController release];
[fourthViewController release];

serivceImg=[[UIImageView alloc]initWithFrame:CGRectMake(0, 432, 80, 49)];
serivceImg.image=[UIImage imageNamed:serviceHover];

contactImg=[[UIImageView alloc]initWithFrame:CGRectMake(81, 432,80, 49)];
contactImg.image=[UIImage imageNamed:tabContact];

bookingImg=[[UIImageView alloc]initWithFrame:CGRectMake(162, 432,80, 49)];
bookingImg.image=[UIImage imageNamed:tabBooking];

rewardImg=[[UIImageView alloc]initWithFrame:CGRectMake(243, 432, 80, 49)];
rewardImg.image=[UIImage imageNamed:tabReward];

[tabBar.view addSubview:serivceImg];
[tabBar.view addSubview:contactImg];
[tabBar.view addSubview:bookingImg];
[tabBar.view addSubview:rewardImg];

[[[UIApplication sharedApplication]keyWindow]addSubview:tabBar.view];

[serivceImg release];
[contactImg release];
[bookingImg release];
[rewardImg release];

}

- (void)tabBarController:(UITabBarController *)tabBarController didSelectViewController:(UIViewController *)viewController1{

     if (viewController1 == [tabBar.viewControllers objectAtIndex:0])

 {

     serivceImg.image = [UIImage imageNamed:kserviceHover];
     contactImg.image=[UIImage imageNamed:ktabContact];
     bookingImg.image=[UIImage imageNamed:ktabBooking];
     rewardImg.image=[UIImage imageNamed:ktabReward];


 }

else if (viewController1 == [tabBar.viewControllers objectAtIndex:1])

{

    serivceImg.image = [UIImage imageNamed:ktabService];
    contactImg.image=[UIImage imageNamed:kcontactHover];
    bookingImg.image=[UIImage imageNamed:ktabBooking];
    rewardImg.image=[UIImage imageNamed:ktabReward];

}

else if (viewController1 == [tabBar.viewControllers objectAtIndex:2])

{

    serivceImg.image = [UIImage imageNamed:ktabService];
    contactImg.image=[UIImage imageNamed:ktabContact];
    bookingImg.image=[UIImage imageNamed:kbookingHover];
    rewardImg.image=[UIImage imageNamed:ktabReward];

}

else if (viewController1 == [tabBar.viewControllers objectAtIndex:3])

{

    serivceImg.image = [UIImage imageNamed:ktabService];
    contactImg.image=[UIImage imageNamed:ktabContact];
    bookingImg.image=[UIImage imageNamed:ktabBooking];
    rewardImg.image=[UIImage imageNamed:krewardHover];

}

}

试试这个。这可能对你有帮助。

iOS自定义标签栏

2 个答案: