ios - 制作调用搜索位置的电话号码的调用按钮

Question

我正在搜索位置的注释标注上创建一个 UI 按钮。我想要按钮调用位置/公司的电话号码。

这是我的代码:

func doCall()
{
    if let selectedPin = selectedPin
    {
        let mapItem = MKMapItem(placemark: selectedPin)
            if mapItem.phoneNumber != nil
                {
                    let url: NSURL! = NSURL(string: "telprompt://" + (mapItem.phoneNumber!))
                    UIApplication.sharedApplication().openURL(url!)
                }
                else
                {
                    print("Cant Call")
                    print(mapItem.phoneNumber)

                }

    }
}

总是返回“Cant Call”

我可以访问通过此代码搜索到的位置的电话号码:

extension LocationSearchTable : UISearchResultsUpdating {

func updateSearchResultsForSearchController(searchController: UISearchController) {
    guard let mapView = mapView,
    let searchBarText = searchController.searchBar.text else { return }
    let request = MKLocalSearchRequest()
    request.naturalLanguageQuery = searchBarText
    // Change line above to find nearby places
    request.region = mapView.region
    let search = MKLocalSearch(request: request)
    search.startWithCompletionHandler { response, _ in
        if let items = response?.mapItems
        {
            for item in items
            {
                if let coordinates = item.placemark.location?.coordinate
                {
                    let annotation = MKPointAnnotation()
                    annotation.coordinate = coordinates
                    annotation.title = item.name
                    annotation.subtitle = item.phoneNumber
                    self.mapView!.addAnnotation(annotation)
                }
            }
        }
        guard let response = response else {
            return
        }


        self.matchingItems = response.mapItems

        self.tableView.reloadData()
    }
}

如何将上面的代码直接嵌入到我的 doCall 方法中以使 UI 按钮继续调用？

如有任何帮助，我们将不胜感激...谢谢!

Answer 1

您看到的问题是 open(url:options:) (3.x) 或 openURL (2.2 ) 无法处理包含空格、( )、- 以及您将在 mapItem 中找到的其他字符的电话号码。

Swift 3.x 的更新答案:

func doCall() {
    if let selectedPin = selectedPin {
        let mapItem = MKMapItem(placemark: selectedPin)
        if let phoneNumber = mapItem.phoneNumber?.components(separatedBy: CharacterSet.decimalDigits.inverted).joined(separator: ""),
            let url = URL(string: "telprompt://" + phoneNumber) {
            UIApplication.shared.open(url, options: [:], completionHandler: nil)
        } else {
            print("Unable to call because number is nil")
        }
    }
}

Swift 2.2 的原始答案:

func doCall() {
    if let selectedPin = selectedPin {
        let mapItem = MKMapItem(placemark: selectedPin)
        if let phoneNumber = (mapItem?.phoneNumber?.componentsSeparatedByCharactersInSet(NSCharacterSet.decimalDigitCharacterSet().invertedSet))?.joinWithSeparator("") {
            UIApplication.sharedApplication().openURL(NSURL(string: "telprompt://" + phoneNumber)!)
        } else {
            print("Unable to call because number is nil")
        }
    }
}