ios - Xcode 7.3 更新后出现语法错误

Question

昨天我安装了新的 Xcode 7.3，我的问题开始了。

我必须对 swift 3 进行许多更改。我通过 Xcode 的“自动更正”解决了许多更改。

但是有两件事无法自动解决:

问题 1

问题2

 for ( var x = 1; x < self.ACData.count; x ++ ) {

但我应该这样做:

如果我应用更正，我会得到以下结果:

for ( x in 2 ..< self.ACData.count ) {

这使我出现语法错误。有人可以帮我吗？ :)

更新

let app:UIApplication = UIApplication.sharedApplication()
  for oneEvent in app.scheduledLocalNotifications! {
    let notification: AnyObject = oneEvent
    let userInfoCurrent = notification.userInfo as! [NSObject: AnyObject]
    if userInfoCurrent["UUID"] == nil {
      app.cancelLocalNotification(notification as! UILocalNotification)
    }
}

Answer 1

问题 1:

不要沮丧，没有必要。您可以为 NSObject 输入一个字符串，因此只需编写以下内容:

let userInfoCurrent = notification.userInfo!

问题2:

去掉括号。这确实是修复它所要做的全部事情，不要写:

for ( x in 2 ..< self.ACData.count )

这不是正确的快速方式，它应该是:

for x in 2 ..< self.ACData.count {

更新:

根据上面显示的代码，我认为最好的方法是:

let app:UIApplication = UIApplication.sharedApplication()
for oneEvent in app.scheduledLocalNotifications! {
    let notification: AnyObject = oneEvent
    guard let userInfoCurrent = notification.userInfo,
          let uuid = userInfoCurrent["UUID"] else {
          app.cancelLocalNotification(notification as! UILocalNotification)        
          return //or continue, don't know if you want to keep looping after this
    }
    // Do something with UUID if it's not necessary you can update the code as follows:
    // guard let userInfoCurrent = notification.userInfo where userInfoCurrent["UUID"] != nil else {
}

我希望这能起作用