在黑色上更改selectedSegment背景顏色UISegmentedControl

我正在開發使用最新SDK和Xcode 4.2的iOS 4應用程序。在黑色上更改selectedSegment背景顏色UISegmentedControl

我已經在AppDelegate上以編程方式添加了UINavigationController，並將其設置爲黑色。

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions 
{ 
    self.window = [[[UIWindow alloc] initWithFrame:[[UIScreen mainScreen] bounds]] autorelease]; 
    // Override point for customization after application launch. 
    viewController = [[ViewController alloc] initWithNibName:@"ViewController" bundle:nil]; 
    viewController.title = @"Menu"; 
    navController = [[UINavigationController alloc] initWithRootViewController:viewController]; 
    navController.navigationBar.tintColor = [UIColor blackColor]; 

    self.window.rootViewController = navController; 

    [self.window makeKeyAndVisible]; 
    return YES; 
}

在一個視圖控制器，我添加了一個UISegmentedControl：

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


    // Do any additional setup after loading the view from its nib. 
    segmentedControl = [[UISegmentedControl alloc] initWithItems: 
              [NSArray arrayWithObjects: 
              [NSString stringWithString:@"Past"], 
              [NSString stringWithString:@"Present"], 
              [NSString stringWithString:@"Future"], 
              nil]]; 

    [segmentedControl addTarget:self action:@selector(segmentedChanged:) forControlEvents:UIControlEventValueChanged]; 
    segmentedControl.frame = CGRectMake(0, 0, 260, 30); 
    segmentedControl.segmentedControlStyle = UISegmentedControlStyleBar; 
    segmentedControl.selectedSegmentIndex = 0; 

    self.navigationItem.titleView = segmentedControl; 
}

但是，當我設置一個項目選擇，我可以看到它，因爲是黑色的。

是否有反正當選擇一個項目時設置爲另一種顏色？

來源

2011-12-30 VansFannel

您可能會收到來自[這]幫助[1] [1]：http://stackoverflow.com/questions/2270526/uisegmentedcontrol-selected-segment-color – mashios 2011-12-30 12:46:50

嘗試使用segmentedControlIndexChanged，然後檢測使用self.segmentedControl.selectedSegmentIndex選擇哪一個並更改該段顏色。

來源

2011-12-30 14:20:03

在黑色上更改selectedSegment背景顏色UISegmentedControl

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