小编mor*_*t3m的帖子

使用Beta 3一切正常,现在我得到一个奇怪的错误,我不知道如何解决它.尝试了解类似问题的所有解决方案.

这是我的代码:

if !name.isEmpty {
        var splitted: [String] = name.componentsSeparatedByString(" ")

        for curPart in splitted {
            if !curPart.isEmpty {
                acronym += curPart.substringToIndex(1) //Error
            }
        }
        if (acronym as NSString).length > 2 {
            acronym = acronym.substringToIndex(2) //Error
        }
    }

两条标记的线都给了我同样的错误:

类型'String.Index'不符合协议'IntegerLiteralConvertible'

有人能帮我吗？或者Beta 4被窃听？谢谢!

嘿Stackoverflow成员,也许你可以帮我解决我的问题.

问题是我想将所有UIViewControllers的方向锁定为"Portrait",但如果MoviePlayer出现,它应该切换到横向模式,如果电影播放器​​消失则返回.

直到Swift 1.2我用过:

func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow) -> UIInterfaceOrientationMask {
//If the video is being presented, let the user change orientation, otherwise don't.
if let presentedViewController = window.rootViewController?.presentedViewController? {
    if (presentedViewController.isKindOfClass(MPMoviePlayerViewController) && !presentedViewController.isBeingDismissed()) {
        return .AllButUpsideDown
    }
}
return .Portrait
}

使用Swift 1.2,有些东西发生了变化,所以我最终得到了以下代码:

func application(application: UIApplication, supportedInterfaceOrientationsForWindow window: UIWindow?) -> Int {
    //If the video is being presented, let the user change orientation, otherwise don't.
    if let presentedViewController = window?.rootViewController?.presentedViewController {
        if (presentedViewController.isKindOfClass(MPMoviePlayerViewController) && !presentedViewController.isBeingDismissed()) {
            return …