I can draw more than around 8000 default red markers without setting icon property for marker. But I want to draw markers with different colors depending upon marker's value. In XCOde I get below warning:-

((null)) was false: Reached the max number of texture atlases, can not allocate more.
((null)) was false: Failed to get the icon for the given CGImageRef.
((null)) was false: Failed to allocate texture space for marker

from Google Map SDK & after that around 1300 markers it gets crashed. Is there any other way to set different colors to markers without crashing for more than 1300 markers.

I am setting marker's colour like below:-

marker.icon = GMSMarker.markerImage(with: self.getColorsFromString(strColor: strColor))

 func getColorsFromString(strColor:String) -> UIColor
{
    var color = UIColor()
    
    switch strColor {
    case "GREEN":
        color = UIColor.green
    case "YELLOW":
        color = UIColor.yellow
    case "RED":
        color = UIColor.red
    case "ORANGE":
        color = UIColor.orange
    case "BLUE":
        color = UIColor.blue
    case "CYAN":
        color = UIColor.cyan
    case "MAGENTA":
        color = UIColor.magenta
        
    default:
        color = UIColor.red
        print("default color")
    }
    return color
    
}

CodePudding user response：

How about to use struct of image? Wo do not need to call GMSMarker.markerImage() thousands times.

struct MarkerImage {
  static let green = GMSMarker.markerImage(with: self.getColorsFromString(strColor: "GREEN"))
  static let yellow = GMSMarker.markerImage(with: self.getColorsFromString(strColor: "YELLOW"))
  static let red = GMSMarker.markerImage(with: self.getColorsFromString(strColor: "RED"))
}

func getIcon(color: String) -> Image {
  switch(color) {
     case "GREEN": return MarkerImage.green
     case "YELLOW": return MarkerImage.yellow
     default: return MarkerImage.red
  }
}

marker.icon = getIcon(color)

If it works, we could create an enum of the color names, and extend that to return an image.