MapKit中是否有专用按钮将摄像头集中在用户位置？或者我是否必须手动创建按钮并切换mapView.showsUserLocation = true？
解决方法
这种方式运行良好(
Swift),您可以自定义按钮：
class YourViewController{
...
@IBOutlet weak var mapView:MKMapView
...
override func viewDidLoad() {
super.viewDidLoad()
...
addMapTrackingButton()
}
func addMapTrackingButton(){
let image = UIImage(named: "trackme") as UIImage?
let button = UIButton(type: UIButtonType.System) as UIButton
button.frame = CGRectMake(5,5,35,35)
button.setImage(image,forState: .Normal)
button.backgroundColor = .clearColor()
button.addTarget(self,action: #selector(YourViewController.centerMapOnUserButtonClicked),forControlEvents:.TouchUpInside)
self.mapView.addSubview(button)
}
func centerMapOnUserButtonClicked() {
self.mapView.setUserTrackingMode( MKUserTrackingMode.Follow,animated: true)
}
...
}
斯威夫特4：
func addMapTrackingButton(){
let image = UIImage(named: "trackme") as UIImage?
let button = UIButton(type: UIButtonType.custom) as UIButton
button.frame = CGRect(origin: CGPoint(x:5,y: 25),size: CGSize(width: 35,height: 35))
button.setImage(image,for: .normal)
button.backgroundColor = .clear
button.addTarget(self,action: #selector(ViewController.centerMapOnUserButtonClicked),for:.touchUpInside)
mapView.addSubview(button)
}
@objc func centerMapOnUserButtonClicked() {
mapView.setUserTrackingMode(MKUserTrackingMode.follow,animated: true)
}
