Question

我是Swift Programming的新手。我正在尝试将Google地图置于UITableView。我能这样做吗？

用户界面应如下所示：

以下是使用Storyboard实现UITableView的代码：

    override func numberOfSections(in tableView: UITableView) -> Int {

        return 3
    }

    override func tableView(_ tableView: UITableView, numberOfRowsInSection section: Int) -> Int {

        var rowCount = 0

        if section == 0 {
            rowCount = 1
        }

        if section == 1 {
            rowCount = arrayOfStatic.count
        }
        if section == 2 {
            rowCount = arrayOfDynamic.count
        }

        return rowCount
    }

    override func tableView(_ tableView: UITableView, heightForRowAt indexPath: IndexPath) -> CGFloat {

        if indexPath.section == 0 {
            return 250
        } else {
            return 70
        }
    }

override func tableView(_ tableView: UITableView, cellForRowAt indexPath: IndexPath) -> UITableViewCell {
    if indexPath.section == 0 {
        let cell = tableView.dequeueReusableCell(withIdentifier: "mapsCellId", for: indexPath) as! GoogleMapsCell
        return cell
    } else if indexPath.section == 1 {
        let cell = tableView.dequeueReusableCell(withIdentifier: "staticCellId", for: indexPath) as! StaticCell
        return cell
    } else {
        let cell = tableView.dequeueReusableCell(withIdentifier: "placesCellId", for: indexPath) as! PlacesCell
        let ip = indexPath

        cell.imageFoursquarePlaces.image = arrayOfDynamic[indexPath.row].image
        cell.labelPlacesName.text = arrayOfDynamic[ip.row].name
        cell.labelPlacesCategory.text = arrayOfDynamic[ip.row].category
        return cell
    }
}

以下是我在UITableViewCell的第一部分中实施UITableView的代码：

class GoogleMapsCell: UITableViewCell, GMSMapViewDelegate, CLLocationManagerDelegate {
    @IBOutlet weak var googleMapsView: UIView!
    @IBOutlet weak var buttonCurrentLoc: UIButton!

    var googleMaps: GMSMapView!
    var locationManager = CLLocationManager()
    var camera = GMSCameraPosition()

    func locationManager(_ manager: CLLocationManager, didUpdateLocations locations: [CLLocation]) {
        self.showCurrentLocationOnMap()
        self.locationManager.stopUpdatingLocation()
    }

    func showCurrentLocationOnMap() {

        self.locationManager.delegate = self
        self.locationManager.desiredAccuracy = kCLLocationAccuracyNearestTenMeters
        self.locationManager.requestWhenInUseAuthorization()
        self.locationManager.startUpdatingLocation()

        let camera = GMSCameraPosition.camera(withLatitude: (self.locationManager.location?.coordinate.latitude)!, longitude: (self.locationManager.location?.coordinate.longitude)!, zoom: 15)
        self.googleMaps = GMSMapView.map(withFrame: CGRect(x: 0,y: 0, width: self.googleMapsView.frame.size.width, height: self.googleMapsView.frame.height), camera: camera)

        do {
            if let styleURL = Bundle.main.url(forResource: "style", withExtension: "json") {
                self.googleMaps.mapStyle = try GMSMapStyle(contentsOfFileURL: styleURL)
            } else {
                NSLog("Unable to find style.json")
            }
        } catch {
            NSLog("The style definition could not be loaded: \(error)")
        }
        self.googleMaps.isMyLocationEnabled = true
        self.googleMaps.accessibilityElementsHidden = false

        self.addSubview(self.googleMaps)
        self.googleMaps.camera = camera
        self.addSubview(self.buttonCurrentLoc)
    }

}

它给了我结果：

我有searchBar作为HeaderView。我试图通过在TableView的第一个单元格内创建UIView来放置Google Map View。但我无法显示谷歌地图视图，无法点击该按钮。我怎么能这样做？

任何帮助将不胜感激：）

Answer 1

您忘记在showCurrentLocationOnMap中使用GoogleMapsCell的实例调用cellForRowAtIndexPath方法。

let cell = tableView.dequeueReusableCell(withIdentifier: "mapsCellId", for: indexPath) as! GoogleMapsCell

//add this method call
cell.showCurrentLocationOnMap()

return cell

或者您可以覆盖awakeFromNib中的GoogleMapsCell，然后使用showCurrentLocationOnMap方法调用它。

override func awakeFromNib() {
    super.awakeFromNib()
    self.showCurrentLocationOnMap()
}

如何将Google地图放入TableView - Swift 3

1 个答案: