iOS开发：如何修改GMS Marker颜色并添加自定义标记？

方法一：修改默认标记的颜色 #

如果仅需将默认红色标记改为蓝色，无需替换自定义图标，直接设置标记的tintColor属性即可：

// MARK: Marker for destination location
let destinationMarker = GMSMarker()
destinationMarker.position = CLLocationCoordinate2D(
    latitude: selectedLocation!.latitude,
    longitude: selectedLocation!.longitude
)
destinationMarker.title = "Destination"
// 设置标记颜色为蓝色
destinationMarker.tintColor = .blue
destinationMarker.map = self.mapView 

方法二：使用自定义图片作为标记 #

如果需要完全替换为自定义设计的蓝色标记图标，通过设置icon属性实现：

// MARK: Marker for destination location
let destinationMarker = GMSMarker()
destinationMarker.position = CLLocationCoordinate2D(
    latitude: selectedLocation!.latitude,
    longitude: selectedLocation!.longitude
)
destinationMarker.title = "Destination"
// 加载自定义蓝色标记图片替换默认图标
if let customMarkerImage = UIImage(named: "custom_blue_marker") {
    destinationMarker.icon = customMarkerImage
}
destinationMarker.map = self.mapView 

完整修改后的代码示例 #

let sourceMarker = GMSMarker()
sourceMarker.position = CLLocationCoordinate2D(
    latitude: currentLocationCoordinates!.coordinate.latitude,
    longitude: currentLocationCoordinates!.coordinate.longitude
)
sourceMarker.title = "Current Location"
sourceMarker.map = self.mapView

// MARK: Marker for destination location
let destinationMarker = GMSMarker()
destinationMarker.position = CLLocationCoordinate2D(
    latitude: selectedLocation!.latitude,
    longitude: selectedLocation!.longitude
)
destinationMarker.title = "Destination"

// 方式1：修改默认标记颜色为蓝色
destinationMarker.tintColor = .blue

// 方式2：使用自定义图片（注释方式1，启用下方代码即可）
// if let customMarkerImage = UIImage(named: "custom_blue_marker") {
//     destinationMarker.icon = customMarkerImage
// }

destinationMarker.map = self.mapView 

内容的提问来源于stack exchange，提问作者Muhammad Mustafeez Ur Rehman