ios 如何使用 Xcode 6 (Swift) 添加 Pin 图（注释）
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How Do I add Pins (Annotations) with Xcode 6 (Swift)
提问by Kampai
I'm new to the swift language, and haven't done an application with mapkit yet. But I have the map and regions set, but I'm hung up on how to allow users to add pins. Let me clarify, I have no idea of even where to start, All I have at the moment (for the pins) is my variable, but I'm not even sure if that's correct. Any help would be much appreciated!! What I have...
我是 swift 语言的新手，还没有用 mapkit 做过应用程序。但是我已经设置了地图和区域，但是我对如何允许用户添加图钉犹豫不决。让我澄清一下，我什至不知道从哪里开始，我目前（对于引脚）所拥有的只是我的变量，但我什至不确定这是否正确。任何帮助将非常感激！！我拥有的...
var MyPins: MKPinAnnotatoinView!
var MyPins: MKPinAnnotatoinView！
......
......
override func viewDidLoad() {
super.viewDidLoad()
Mapview code
地图视图代码
..... ..... }
..... ..... }
回答by Kampai
Your pin variable is correct. Now you just need to add this annotation to MKMapView.
您的 pin 变量是正确的。现在您只需要将此注释添加到MKMapView.
You can also create a custom class for MKAnnotationto add custom annotation to map view.
您还可以创建自定义类MKAnnotation以将自定义注释添加到地图视图。
A beta demo for MapExampleiOS8=> Which supports Swift 2.1
MapExampleiOS8的测试版演示=> 支持Swift 2.1
Follow steps below:
请按照以下步骤操作：
1. Add MapKit.frameworkto project.
1. 添加MapKit.framework到项目。
2. Create Storyboard variable IBOutletof map view control or create it in view controller. Set delegate for this variable to override it's delegate methods:
2. 创建IBOutlet地图视图控件的Storyboard 变量或在视图控制器中创建它。为这个变量设置委托以覆盖它的委托方法：
Add delegate signature to view controller interface:
将委托签名添加到视图控制器界面：
class ViewController: UIViewController, MKMapViewDelegate {
override func viewDidLoad() {
super.viewDidLoad()
// Set map view delegate with controller
self.mapView.delegate = self
}
}
3. Override its delegate methods:
3. 覆盖其委托方法：
Here we need to override mapView(_:viewForAnnotation:)method to show annotation pins on map.
在这里，我们需要覆盖mapView(_:viewForAnnotation:)方法以在地图上显示注释引脚。
func mapView(mapView: MKMapView, viewForAnnotation annotation: MKAnnotation) -> MKAnnotationView? {
if (annotation is MKUserLocation) {
return nil
}
if (annotation.isKind(of: CustomAnnotation.self)) {
let customAnnotation = annotation as? CustomAnnotation
mapView.translatesAutoresizingMaskIntoConstraints = false
var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: "CustomAnnotation") as MKAnnotationView!
if (annotationView == nil) {
annotationView = customAnnotation?.annotationView()
} else {
annotationView?.annotation = annotation;
}
self.addBounceAnimationToView(annotationView)
return annotationView
} else {
return nil
}
}
4. Add MKPointAnnotationto map view.
4. 添加MKPointAnnotation到地图视图。
You can add pin to location in map view. For simplicity add code to viewDidLoad()method.
您可以在地图视图中将图钉添加到位置。为简单起见，向viewDidLoad()方法添加代码。
override func viewDidLoad() {
super.viewDidLoad()
// Set map view delegate with controller
self.mapView.delegate = self
let newYorkLocation = CLLocationCoordinate2DMake(40.730872, -74.003066)
// Drop a pin
let dropPin = MKPointAnnotation()
dropPin.coordinate = newYorkLocation
dropPin.title = "New York City"
mapView.addAnnotation(dropPin)
}
回答by Nicholas
You will need to call a method for when and where the user needs to add the pin. If you want it to add a pin where the user taps and holds on the map, you will need to call a gestureRecognizer, but if you want to do it via a button you will obviously just call that in an action. Either way the documentation for adding pins is throughly discussed Here
您将需要为用户需要在何时何地添加 pin 调用一个方法。如果您希望它在用户在地图上点击并按住的位置添加一个图钉，您将需要调用gestureRecognizer，但如果您想通过按钮来完成，您显然只需在一个动作中调用它。无论哪种方式，添加引脚的文档都在这里进行了彻底讨论
