1.纯图片替换

// 只需在以下函数中重设annotationView图片就行
func mapView(_ mapView: MAMapView!, viewFor annotation: MAAnnotation!) -> MAAnnotationView! {
  if annotation.isKind(of: MAPointAnnotation.self) {
    if annotation.title != "当前位置" {
      let pointReuseIndetifier = "pointReuseIndetifier"
      var annotationView: MAPinAnnotationView? = mapView.dequeueReusableAnnotationView(withIdentifier: pointReuseIndetifier) as! MAPinAnnotationView?
      if annotationView == nil {
        annotationView = MAPinAnnotationView(annotation: annotation, reuseIdentifier: pointReuseIndetifier)
      }
      annotationView!.canShowCallout = true
      annotationView!.image = UIImage(named: "公交站牌32")
      // 图片偏移量，根据自己图片不同来设定
      annotationView!.centerOffset = CGPoint(x: 0, y: -18);
      return annotationView!
    }
  }
  return nil
}

点击以后弹出

但我们如果是想同时显示图标和文字，则需要自己自定义标记

2.自定义样式同时显示图片文字

1.自定义一个UIView组件

参考链接：Swift - XIB结合UIView制作自定义组件（xib加载绘制UIView）

class CustomStationAnnotationView: UIView {

  @IBOutlet weak var stationImage: UIImageView!
  @IBOutlet weak var stationLabel: UILabel!

  //布局相关设置
  override func layoutSubviews() {
    super.layoutSubviews()
  }
  /*** 下面的几个方法都是为了让这个自定义类能将xib里的view加载进来。这个是通用的，我们不需修改。 ****/
  var contentView:UIView!

  //初始化时将xib中的view添加进来
  override init(frame: CGRect) {
    super.init(frame: frame)
    contentView = loadViewFromNib()
    // 设置字体、背景颜色
    stationLabel.backgroundColor = ViewUtility.UIColorFromRGB(color_vaule: "#485A73")
    stationLabel.textColor = ViewUtility.UIColorFromRGB(color_vaule: "#EEDA1B")
    addSubview(contentView)
  }

  //初始化时将xib中的view添加进来
  required init?(coder aDecoder: NSCoder) {
    super.init(coder: aDecoder)
    contentView = loadViewFromNib()
    addSubview(contentView)
  }
  //加载xib
  func loadViewFromNib() -> UIView {
    let className = type(of: self)
    let bundle = Bundle(for: className)
    let name = NSStringFromClass(className).components(separatedBy: ".").last
    let nib = UINib(nibName: name!, bundle: bundle)
    let view = nib.instantiate(withOwner: self, options: nil).first as! UIView
    return view
  }
}

站点样式暂时就画成下面这个样子，注意将Background设为Clear Color，即无背景色

2.自定义CustomAnnotationView

新建一个类CustomAnnotationView，继承MAAnnotationView，重写init引入自定义的UIView

import UIKit

class CustomAnnotationView: MAAnnotationView {

  override init!(annotation: MAAnnotation!, reuseIdentifier: String!) {
    super.init(annotation: annotation, reuseIdentifier: reuseIdentifier)
    // 引入自定义UIView
    let station = CustomStationAnnotationView.init(frame: CGRect.init(x: 0, y: 0, width: 80, height: 60))
    // 设置样式里的站点名称
    let title:String = annotation.title as! String
    station.stationLabel.text = title
    self.addSubview(station)
  }

  required init?(coder: NSCoder) {
    fatalError("init(coder:) has not been implemented")
  }
}

3.添加站点信息

首先创建一个mapview(这部分不作讲解)，然后添加自定义点标记

// Station为一个自定义的对象，包含 名称经纬度 就行
var stationArray=Array<Station>()
var showStationAnnotationArray=Array<MAPointAnnotation>()

// 本地添加一个站点数据
func addStationArray() {
  let station = Station.init()
  station.name = "公交站"
  station.lat = 2253242
  station.lng = 11395239
  stationArray.append(station)
  self.showStationPoint()
}

// MARK: - 添加站点信息
func showStationPoint() {
  for station in stationArray {
    let pointAnnotation = MAPointAnnotation()
    pointAnnotation.coordinate = CLLocationCoordinate2D(latitude: Double(station.lat)/100000.0, longitude: Double(station.lng)/100000.0)
    pointAnnotation.title = station.name
    pointAnnotation.subtitle = station.note
    showStationAnnotationArray.append(pointAnnotation)
  }
  mapview.addAnnotations(showStationAnnotationArray)
}

//MARK: - 设置地图站点样式
func mapView(_ mapView: MAMapView!, viewFor annotation: MAAnnotation!) -> MAAnnotationView! {
  if annotation.isKind(of: MAPointAnnotation.self) {
    if annotation.title != "当前位置" {
      let customReuseIndetifier: String = "customReuseIndetifier"
      var annotationView = mapView.dequeueReusableAnnotationView(withIdentifier: customReuseIndetifier) as? CustomAnnotationView
      if annotationView == nil {
        annotationView = CustomAnnotationView.init(annotation: annotation, reuseIdentifier: customReuseIndetifier)
      }
      annotationView?.canShowCallout = false
      annotationView?.isDraggable = true
      annotationView!.centerOffset = CGPoint(x: -40, y: -30)
      return annotationView!
    }
  }
  return nil
}

最终展示效果如图：