ios - App Delegate - 页面 Controller 错误

Question

我不确定我在下面的声明中做错了什么。我已经在我的项目中添加了一个页面 View Controller ，但是当我构建并运行该项目时，出现了“bool”错误。这是代码:

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
    // Override point for customization after application launch.

    UIApplication.sharedApplication().setStatusBarStyle(UIStatusBarStyle.LightContent, animated: true)

    let pageControl = UIPageControl.appearance()
    pageControl.pageIndicatorTintColor = UIColor.lightGrayColor()
    pageControl.currentPageIndicatorTintColor = UIColor.whiteColor()
}

Answer 1

func application(application: UIApplication, didFinishLaunchingWithOptions launchOptions: [NSObject: AnyObject]?) -> Bool {
// Override point for customization after application launch.

    UIApplication.sharedApplication().setStatusBarStyle(UIStatusBarStyle.LightContent, animated: true)

    let pageControl = UIPageControl.appearance()
    pageControl.pageIndicatorTintColor = UIColor.lightGrayColor()
    pageControl.currentPageIndicatorTintColor = UIColor.whiteColor()
    return true
}