Android 检查路线是否包含特定坐标
我目前正在开发一个应用程序,我想知道一条路线是否包含一组特定的纬度坐标。这是我的密码:Android 检查路线是否包含特定坐标,android,google-maps,location,Android,Google Maps,Location,我目前正在开发一个应用程序,我想知道一条路线是否包含一组特定的纬度坐标。这是我的密码: public class PathActivity extends FragmentActivity implements OnMapReadyCallback, RoutingListener { private GoogleMap mMap; FetchLocation fetchLocation; LatLng start; LatLng end; Progr
public class PathActivity extends FragmentActivity implements OnMapReadyCallback, RoutingListener {
private GoogleMap mMap;
FetchLocation fetchLocation;
LatLng start;
LatLng end;
ProgressDialog pd;
List<Polyline> polylines;
private static final int[] COLORS = new int[]{R.color.gradient_dark_pink};
FirebaseFirestore firestore;
@Override
protected void onCreate(Bundle savedInstanceState)
{
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_path);
//Receiving Object From Intent
Intent rcv = getIntent();
fetchLocation = (FetchLocation) rcv.getSerializableExtra("keyFetchLocationObject2");
pd = new ProgressDialog(this);
pd.setMessage("Please Wait...");
firestore = FirebaseFirestore.getInstance();
fetchAllTrafficLights();
polylines = new ArrayList<>();
SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
.findFragmentById(R.id.map);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
pd.show();
//Making a Path
start = new LatLng(fetchLocation.latitude, fetchLocation.longitude);
end = new LatLng(fetchLocation.destinationLatitude, fetchLocation.destinationLongitude);
Routing routing = new Routing.Builder()
.travelMode(Routing.TravelMode.DRIVING)
.withListener(this)
.alternativeRoutes(false)
.waypoints(start, end)
.build();
routing.execute();
}
@Override
public void onRoutingFailure(RouteException e)
{
Toast.makeText(this, "Error: " + e.getMessage(), Toast.LENGTH_LONG).show();
pd.dismiss();
}
@Override
public void onRoutingStart() {
}
@Override
public void onRoutingSuccess(ArrayList<Route> route, int shortestRouteIndex)
{
pd.dismiss();
mMap.animateCamera(CameraUpdateFactory.newLatLngZoom(start, 16));
if(polylines.size()>0) {
for (Polyline poly : polylines) {
poly.remove();
}
}
polylines = new ArrayList<>();
//add route(s) to the map.
for (int i = 0; i <route.size(); i++)
{
//In case of more than 5 alternative routes
int colorIndex = i % COLORS.length;
PolylineOptions polyOptions = new PolylineOptions();
polyOptions.color(getResources().getColor(COLORS[colorIndex]));
polyOptions.width(10 + i * 3);
polyOptions.addAll(route.get(i).getPoints());
Polyline polyline = mMap.addPolyline(polyOptions);
polylines.add(polyline);
Toast.makeText(getApplicationContext(),"Route "+ (i+1) +": distance - "+ route.get(i).getDistanceValue()+": duration - "+ route.get(i).getDurationValue(),Toast.LENGTH_SHORT).show();
// Start marker
MarkerOptions options = new MarkerOptions();
options.position(start);
options.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker_start_blue));
mMap.addMarker(options);
// End marker
options = new MarkerOptions();
options.position(end);
options.icon(BitmapDescriptorFactory.fromResource(R.drawable.marker_end_green));
mMap.addMarker(options);
}
}
@Override
public void onRoutingCancelled() {
}
public void fetchAllTrafficLights()
{
pd.show();
firestore.collection("Controller").get().addOnCompleteListener(this, new OnCompleteListener<QuerySnapshot>() {
@Override
public void onComplete(Task<QuerySnapshot> task)
{
if(task.isSuccessful())
{
for(QueryDocumentSnapshot documentSnapshot : task.getResult())
{
Log.i("Hello", documentSnapshot.get("controllerLatitude").toString() + " " + documentSnapshot.get("controllerLongitude").toString());
pd.dismiss();
}
}
}
})
.addOnFailureListener(this, new OnFailureListener()
{
@Override
public void onFailure(Exception e)
{
Toast.makeText(PathActivity.this, "Error: " + e.getMessage(), Toast.LENGTH_SHORT).show();
pd.dismiss();
}
});
}
}
用户源lat long在上一个活动中使用google place autocomplete获取,并在传递给此活动的对象中设置
任何人都请帮忙 来看看我们的方法。您需要获取从A到D的多段线路径,并使用isLocationOnPath()
检查列表(B和C)中的每个点(如果它位于A-D路径上)。诸如此类:
for (LatLng point : pointsBandCList) {
if (PolyUtil.isLocationOnPath(point, polylineFromAtoD.getPoints(), true, 100)) {
// "point" laying on A to D path
...
}
}
其中,100
-是公差(以米为单位)。你可以根据你的任务来调整它。看看这个方法。您需要获取从A到D的多段线路径,并使用isLocationOnPath()
检查列表(B和C)中的每个点(如果它位于A-D路径上)。诸如此类:
for (LatLng point : pointsBandCList) {
if (PolyUtil.isLocationOnPath(point, polylineFromAtoD.getPoints(), true, 100)) {
// "point" laying on A to D path
...
}
}
其中,
100
-是公差(以米为单位)。你可以根据你的任务调整它。先生,这太麻烦了。这对我很管用!!。先生,你对地图很有把握。向你致敬,先生。@AndriiOmelchenko有没有办法通过网络服务做到这一点?我试图在后端而不是前端完成这项工作end@Nil对您可以查看PolyUtil.isLocationOnPath()的源代码,并在后端实现它。如何使用flatter@AndriiOmelchenko实现这一点?有人吗?非常喜欢泰国人,先生。这对我很管用!!。先生,你对地图很有把握。向你致敬,先生。@AndriiOmelchenko有没有办法通过网络服务做到这一点?我试图在后端而不是前端完成这项工作end@Nil对您可以查看PolyUtil.isLocationOnPath()的源代码,并在后端实现它。如何使用flatter@AndriiOmelchenko实现这一点?任何人