添加的标记不可见-Mapbox 6.7.0
尝试使用符号层将标记添加到mapbox时,该标记不可见。 尝试添加标记,如下所示添加的标记不可见-Mapbox 6.7.0,mapbox,mapbox-android,Mapbox,Mapbox Android,尝试使用符号层将标记添加到mapbox时,该标记不可见。 尝试添加标记,如下所示 mapView.getMapAsync(m -> { isMapReady = true; mapboxMap = m; mapboxMap.addOnMapClickListener(MapViewFragment.this); addMarkerToSymbolLayer(45); updateCameraPosition(location); });
mapView.getMapAsync(m -> {
isMapReady = true;
mapboxMap = m;
mapboxMap.addOnMapClickListener(MapViewFragment.this);
addMarkerToSymbolLayer(45);
updateCameraPosition(location); });
private void updateCameraPosition(Location location){
if (mapboxMap != null) {
LatLng latLong = new LatLng();
if (location != null) {
latLong.setLatitude(location.getLatitude());
latLong.setLongitude(location.getLongitude());
}
final CameraPosition cameraPosition = new CameraPosition.Builder()
.target(latLong)
.build();
mapboxMap.moveCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
mapView.postDelayed(() -> mapboxMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition), AppConstants.MAP_CAMERA_ANIMATE_DURATION_MS_5000), 100);
private void addMarkerToSymbolLayer(float headDirection) {
GeoJsonSource geoJsonSource = new GeoJsonSource("geojson-source",
Feature.fromGeometry(Point.fromLngLat(77.6387, 12.9610)));
mapboxMap.addSource(geoJsonSource);
Bitmap compassNeedleSymbolLayerIcon = BitmapFactory.decodeResource(
getResources(), R.drawable.compass_needle);
mapboxMap.addImage("compass-needle-image-id", compassNeedleSymbolLayerIcon);
SymbolLayer aircraftLayer = new SymbolLayer("aircraft-layer", "geojson-source")
.withProperties(
PropertyFactory.iconImage("compass-needle-image-id"),
PropertyFactory.iconRotate(headDirection),
PropertyFactory.iconIgnorePlacement(true),
PropertyFactory.iconAllowOverlap(true)
);
mapboxMap.addLayer(aircraftLayer);
}
如果在移动摄影机后调用addMarkerToSymbolLayer(),则标记是可见的。为什么添加标记取决于相机位置?为了满足我的要求,我不得不多次移动相机。如何处理
另外,在不推荐使用的MarkerView和MarkerView选项中,我在添加marker时没有任何问题
我注意到,如果在调用函数addMarkerToSymbolLayer(45)时给予100毫秒的延迟,那么标记是可见的,并且工作正常 甚至在加载所有样式之前都会调用onMapReady()。在添加符号图层之前,必须加载所有样式。添加以下侦听器并调用在其中添加标记
mapView.addOnDidFinishLoadingStyleListener(new MapView.OnDidFinishLoadingStyleListener() {
@Override
public void onDidFinishLoadingStyle() {
}
});
感谢您让生活变得更轻松:)