package com.example.mukesh.airpollution;
import android.graphics.Color;
import android.os.Bundle;
import android.support.v4.app.FragmentActivity;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.GoogleMap.OnMapClickListener;
import com.google.android.gms.maps.MapFragment;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.model.CameraPosition;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.Polygon;
import com.google.android.gms.maps.model.PolygonOptions;
import com.google.maps.android.PolyUtil;
import java.util.List;
import java.util.ArrayList;
public class MapsActivity extends FragmentActivity
implements OnMapClickListener, OnMapReadyCallback {
//final int RQS_GooglePlayServices = 1;
private GoogleMap mMap;
//private GoogleMap googleMap;
boolean markerClicked;
PolygonOptions polygonOptions;
Polygon polygon;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_maps);
// Obtain the SupportMapFragment and get notified when the map is ready to be used.
// SupportMapFragment mapFragment = (SupportMapFragment) getSupportFragmentManager()
// .findFragmentById(R.id.map);
// mapFragment.getMapAsync(this);
MapFragment mapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.map);
mapFragment.getMapAsync((OnMapReadyCallback) this);
mMap.setOnMapClickListener(this);
// MapFragment mapFragment = (MapFragment) getFragmentManager().findFragmentById(R.id.map);
// mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap googleMap)
{
mMap = googleMap;
ArrayList<Polygon> polygonList = new ArrayList<>();
Polygon polygon = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(28.555335, 76.798553), new LatLng(28.830117, 76.935883), new LatLng(28.882919, 77.080078), new LatLng(28.868489, 77.220154), new LatLng(28.714438, 77.328644), new LatLng(28.519141, 77.3698434), (new LatLng(28.399615, 77.196808)), (new LatLng(28.555335, 76.798553)))
.strokeColor(Color.RED)
// .fillColor(Color.BLUE)
//
);
// ArrayList<Polygon> polygonList = new ArrayList<>();
Polygon p1 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(28.882919, 77.080078), new LatLng(28.752972, 77.078705), new LatLng(28.714438, 77.328644), new LatLng(28.868489, 77.220154),new LatLng(28.882919, 77.080078))
.strokeColor(Color.RED)
.fillColor(Color.BLUE));
// ArrayList<Polygon> polygonList = new ArrayList<>();
Polygon p2 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(28.882919, 77.080078), new LatLng(28.752972, 77.078705), new LatLng(28.830117, 76.935883), new LatLng(28.882919, 77.080078))
.strokeColor(Color.RED)
//.fillColor(Color.BLUE)
);
Polygon p3 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(28.555335, 76.798553), new LatLng(28.752972, 77.078705), new LatLng(28.830117, 76.935883), new LatLng(28.555335, 76.798553))
.strokeColor(Color.RED)
// .fillColor(Color.BLUE)
);
final LatLng SYDNEY = new LatLng(28.6139,77.2090);
final LatLng MOUNTAIN_VIEW = new LatLng(28.6387, 77.0941);
final LatLngBounds.Builder bounds;
final LatLng s=new LatLng(28.643353 ,77.446747);
bounds = new LatLngBounds.Builder();
bounds.include(new LatLng(28.643353, 77.446747));
bounds.include(new LatLng(28.509488, 76.823273));
mMap.moveCamera(CameraUpdateFactory.newLatLngZoom(SYDNEY, 10));
mMap.animateCamera(CameraUpdateFactory.zoomIn());
mMap.animateCamera(CameraUpdateFactory.zoomTo(10), 2000, null);
CameraPosition cameraPosition = new CameraPosition.Builder()
.target(MOUNTAIN_VIEW)
.zoom(10)
.bearing(90)
.tilt(30)
.build();
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition));
mMap.setOnCameraChangeListener(new GoogleMap.OnCameraChangeListener() {
@Override
public void onCameraChange(CameraPosition arg0) {
// Move camera.
// googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds.build(),
if (arg0.zoom >= 10) ;
else if (arg0.zoom < 9) {
CameraPosition cameraPosition1 = new CameraPosition.Builder()
.target(MOUNTAIN_VIEW) // Sets the center of the map to Mountain View
.zoom(12) // Sets the zoom
.bearing(90) // Sets the orientation of the camera to east
.tilt(30) // Sets the tilt of the camera to 30 degrees
.build(); // Creates a CameraPosition from the builder
mMap.animateCamera(CameraUpdateFactory.newCameraPosition(cameraPosition1));
}
// Remove listener to prevent position reset on camera move.
// googleMap.setOnCameraChangeListener(googleMap.moveCamera(CameraUpdateFactory.newLatLngBounds(bounds.build(),12)));
//googleMap.(latlngbounds);
}
}
);
}
@Override
public void onMapClick(LatLng point) {
Polygon polygon = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(0, 0), new LatLng(0, 5), new LatLng(3, 5), new LatLng(0, 0)));
Polygon p1 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(0, 0), new LatLng(0, 5), new LatLng(3, 5), new LatLng(0, 0)));
Polygon p2 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(0, 0), new LatLng(0, 5), new LatLng(3, 5), new LatLng(0, 0)));
Polygon p3 = mMap.addPolygon(new PolygonOptions()
.add(new LatLng(0, 0), new LatLng(0, 5), new LatLng(3, 5), new LatLng(0, 0)));
//CHANGE POLYGON SPECIFICATIONS
//ADD ALL POLYGONS
List<LatLng> points = polygon.getPoints();
List<LatLng> points1 = p1.getPoints();
List<LatLng> points2 = p2.getPoints();
List<LatLng> points3 = p3.getPoints();
if (PolyUtil.containsLocation(point, points, false)) {
//Do SOMETHING...
} else if (PolyUtil.containsLocation(point, points1, false)) {
//Do SOMETHING...
}
if (PolyUtil.containsLocation(point, points2, false)) {
//Do SOMETHING...
}
if (PolyUtil.containsLocation(point, points3, false)) {
//Do SOMETHING...
}
}
}Erreur d'objet nulle dans mMap.setOnMapClickListener (this);
Obtenir erreur dans cette ligne
mMap.setOnMapClickListener(this);
java.lang.RuntimeException: Impossible de démarrer l'activité ComposantInfo {com.example.mukesh.airpollution/com .example.mukesh.airpollution.MapsActivity}: java.lang.NullPointerException: Tentative d'invocation de la méthode virtuelle 'void com.google.android.gms.maps.GoogleMap.setOnMapClickListener (com.google.android.gms.maps.GoogleMap $ OnMapClickListener) ' sur une référence d'objet null at android.app.ActivityThread.performLaunchActivity (ActivityThread.java: 2325) à android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2387) à android.app.ActivityThread.access 800 $ (ActivityThread.java:151) à android.app.ActivityThread $ H.handleMessage (ActivityThread .java: 1303) à android.os.Handler.dispatchMessage (Handler.java:102) à android.os.Looper.loop (Looper.java:135) at android.app.ActivityThread.main (ActivityThread.java:5254) à java.lang.reflect.Method.invoke (Méthode native) à java.lang.reflect.Method.invoke (Method.java:372) au com.android.internal.os.ZygoteInit $ MethodAndArgsCaller.run (ZygoteInit.java:903) à com.android.internal.os.ZygoteInit.main (ZygoteInit.java:698) Causé par: java.lang. NullPointerException: tentative d'invoquer la méthode virtuelle ' com.google.android.gms.maps.GoogleMap.setOnMapClickListener vide (com.google.android.gms.maps.GoogleMap $ OnMapClickListener)' sur une référence d'objet null à com.example.mukesh.airpollution.MapsActivity.onCreate (MapsActivity.java:58) à android.app.Activity.performCreate (Activity.java:5990) à android.app.Instrumentation.callActivityOnCreate (Instrumentation.java : 1106) à android.app.ActivityThread.performLaunchActivity (ActivityThread.java:2278) à android.app.ActivityThread.handleLaunchActivity (ActivityThread.java:2387) à android.app.ActivityThread.access 800 $ (ActivityThread. java: 151) at android.app.ActivityThread $ H.handleMessage (ActivityThread. java: 1303) à android.os.Handler.dispatchMessage (Handler.java:102) à android.os.Looper.loop (Looper.java:135) à android.app.ActivityThread.main (ActivityThread.java: 5254) à java.lang.reflect.Method.invoke (native Method) à java.lang.reflect.Method.invoke (Method.java:372) à com.android.internal.os.ZygoteInit $ MethodAndArgsCaller. exécuter (ZygoteInit.java:903) à com.android.internal.os.ZygoteInit.main (ZygoteInit.java: 698)
Postez votre code. –
Évidemment 'mMap' est nul. –