我正在评估从 MapKit 到 Mapbox 的转换。
除了 MKUserTrackingBarButtonItem
之外,我已经找到了所有功能的等效项。
let trackingButton = MKUserTrackingBarButtonItem(mapView: map)
有没有办法为 Mapbox iOS SDK 创建这个按钮?
我在 Mapbox 文档中没有找到任何类似的东西,我不能继续使用这个函数,因为它需要一个 MKMapView
。
提前致谢。
最佳答案
以防万一其他人有兴趣,这是this answer在一个简单的 ViewController
中转换为 Swift。我只是遗漏了 .FollowWithCourse
以复制 MKUserTrackingBarButtonItem
的行为。
class ViewController: UIViewController, MGLMapViewDelegate {
@IBOutlet weak var map: MGLMapView!
@IBOutlet weak var toolbar: UIToolbar!
override func viewDidLoad() {
super.viewDidLoad()
map.delegate = self
map.setCenterCoordinate(CLLocationCoordinate2D(latitude: 40.7326808, longitude: -73.9843407), zoomLevel: 12, animated: false)
let trackingButton = UIBarButtonItem(image: UIImage(named: "TrackingLocationOffMask"), style: UIBarButtonItemStyle.Plain, target: self, action: "trackingButtonChanged")
toolbar.items!.insert(trackingButton, atIndex: 0)
}
override func didReceiveMemoryWarning() {
super.didReceiveMemoryWarning()
}
func mapView(mapView: MGLMapView, didChangeUserTrackingMode mode: MGLUserTrackingMode, animated: Bool) {
var image: String = "TrackingLocationOffMask.png"
switch (mode) {
case .Follow:
image = "TrackingLocationMask.png"
break
case .FollowWithHeading:
image = "TrackingHeadingMask.png"
break
default:
break
}
UIView.animateWithDuration(0.25, animations: {
(self.toolbar.items![0] as UIBarButtonItem).image = UIImage(named: image)
})
}
func trackingButtonChanged() {
var mode: MGLUserTrackingMode = .Follow
switch (map.userTrackingMode) {
case .Follow:
mode = .FollowWithHeading
break
case .FollowWithHeading:
mode = .None
break
default:
break
}
map.userTrackingMode = mode
}
}
图像是here在 GitHub 上的 mapbox-gl-native。
关于ios - Mapbox 中的 MKUserTrackingBarButtonItem,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/35717633/