如何使用 IOS Swift 中的 CollectionView 项过滤 GoogleMapView 上的标记 4

Question

我在我的 iOS 应用程序中使用了 googleMapView，我通过这样做在随机位置放置标记：

struct location {
    let icon: UIImage
    let latitude : CLLocationDegrees
    let longitude : CLLocationDegrees
}

class MapViewController: UIViewController,GMSMapViewDelegate,CLLocationManagerDelegate {
  let locations = [
        location(icon: UIImage(named :"beautycare.png")!, latitude: 36.771873, longitude: -119.750724),
        location(icon: UIImage(named :"childcare.png")!, latitude: 36.771930, longitude: -119.761352),
        location(icon: UIImage(named :"carpentry.png")!, latitude: 36.772243, longitude: -119.774393),
        location(icon: UIImage(named :"education.png")!, latitude: 36.772499, longitude: -119.739129),
        location(icon: UIImage(named :"plumbing.png")!, latitude: 36.781273, longitude: -119.793848),
        location(icon: UIImage(named :"massage.png")!, latitude: 36.781433, longitude: -119.723345),
        location(icon: UIImage(named :"childcare.png")!, latitude: 36.781569, longitude: -119.830231),
        location(icon: UIImage(named :"security.png")!, latitude: 36.782312, longitude: -119.767465),
        location(icon: UIImage(named :"cleaning.png")!, latitude: 36.782933, longitude: -119.814373),
        location(icon: UIImage(named :"beautycare.png")!, latitude: 36.783156, longitude: -119.794719),
        location(icon: UIImage(named :"carpentry.png")!, latitude: 36.783873, longitude: -119.363839),
        location(icon: UIImage(named :"massage.png")!, latitude: 36.784289, longitude: -119.738238),
        location(icon: UIImage(named :"education.png")!, latitude: 36.793321, longitude: -119.738920),
        location(icon: UIImage(named :"childcare.png")!, latitude: 36.796312, longitude: -119.749201),
        location(icon: UIImage(named :"beautycare.png")!, latitude: 36.799893, longitude: -119.798301),
        location(icon: UIImage(named :"plumbing.png")!, latitude: 36.803455, longitude: -119.821022),
        location(icon: UIImage(named :"massage.png")!, latitude: 36.803953, longitude: -119.873910),
        location(icon: UIImage(named :"carpentry.png")!, latitude: 36.804273, longitude: -119.801032),
        location(icon: UIImage(named :"plumbing.png")!, latitude: 36.807721, longitude: -119.834747),
        location(icon: UIImage(named :"beautycare.png")!, latitude: 36.809213, longitude: -119.749321)]

   override func viewWillAppear(_ animated: Bool) {

        for location in locations {

            let marker = GMSMarker()
            marker.position = CLLocationCoordinate2DMake(location.latitude,location.longitude)
            marker.icon = location.icon
            marker.appearAnimation = GMSMarkerAnimation.pop
            marker.map = googleMapView
        }
 }

现在我的 ViewController 中有一个水平 collectionView，其中有具有相应图像和服务名称的服务。

现在，当我单击 collectionView 中的任何项目时，它应该根据我在 collectionView 中选择的服务过滤位置处的图标。

Answer 1

filter your array with location ,

let newArray = locations.filter{[=10=].latitude == "your lattitude"}

如何使用 IOS Swift 中的 CollectionView 项过滤 GoogleMapView 上的标记 4

How to filter markers on GoogleMapView using CollectionView items in IOS Swift 4

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