谷歌地图删除以前的标记位置跟踪

Question

我正在尝试在用户位置显示标记并删除之前的标记。我尝试了类似这样的东西，但它没有用。

LocationListener locationListener = new LocationListener() {
     public void onLocationChanged(Location location) {
         Toast.makeText(getActivity(), 
         String.valueOf(location.getLatitude()),Toast.LENGTH_SHORT).show();

         Marker playermarker = null;
         if (playermarker!=null) {
              playermarker.remove();
              playermarker=null;
         }

         if (playermarker==null) {
              playermarker = googleMap.addMarker(new 
                    MarkerOptions().position(new 
                    LatLng(location.getLatitude(),location.getLongitude())));
         }
      }

      public void onStatusChanged(String provider, int status, Bundle extras) {}

      public void onProviderEnabled(String provider) {}

      public void onProviderDisabled(String provider) {}
};

Answer 1

使用此

  onLocationChanged{

       if (currLocationMarker != null) {
                currLocationMarker.remove();
            }

            latLng = new LatLng(location.getLatitude(), location.getLongitude());

            MarkerOptions markerOptions = new MarkerOptions();
            markerOptions.position(latLng);
            markerOptions.title("Current Position.......");
            markerOptions.icon(BitmapDescriptorFactory.defaultMarker(BitmapDescriptorFactory.HUE_MAGENTA));
            currLocationMarker = mMap.addMarker(markerOptions);
}

自定义标记选择图像格式可绘制文件夹

.icon(BitmapDescriptorFactory.fromResource(R.drawable.arrow)));