ios - 将 ray wenderlich mapkit 教程升级到 xcode 7 错误 mkplacemark

Question

我刚刚将 ray wenderlich mapkit 教程升级到 MKPlacemark 的 xcode 7 错误。我仍然只是编码方面的新手，我不是 100% 确定从哪里开始解决这个错误。我搜索了但不知道有用。

感谢您的帮助。非常感谢。

http://www.raywenderlich.com/90971/introduction-mapkit-swift-tutorial

这是我遇到错误的代码:

// annotation callout opens this mapItem in Maps app
func mapItem() -> MKMapItem {
    let addressDict = [String(kABPersonAddressStreetKey): self.subtitle]
    let placemark = MKPlacemark(coordinate: self.coordinate, addressDictionary: addressDict)

    let mapItem = MKMapItem(placemark: placemark)
    mapItem.name = self.title

    return mapItem

错误是:

无法使用列表类型“coordinate:CLLocationCoordinate2D, addressDictionary:[String : String?])”的参数调用类型“mkplacemark”的初始值设定项

再次感谢，

特拉维斯。

Answer 1

您需要将字幕转换为 AnyObject，如下所示:

let addressDict = [String(kABPersonAddressStreetKey): self.subtitle as!任何对象]

“func mapItem() -> MKMapItem { }”的完整代码将是:

func mapItem() -> MKMapItem {
    let addressDict = [String(kABPersonAddressStreetKey): self.subtitle as! AnyObject]
    let placemark = MKPlacemark(coordinate: self.coordinate, addressDictionary: addressDict)

    let mapItem = MKMapItem(placemark: placemark)
    mapItem.name = self.title

    return mapItem
  }