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Selon le message d'erreur, je remplace clairement la méthode onLocationchanged dans la partie principale, mais il persiste à dire que vous devez implémenter la méthode. Je sais que cet auditeur a aussi plus de 3 méthodes. Lorsque j'essaie de les remplacer, il est dit "La méthode ne remplace pas la méthode de sa super classe".Fragment n'est pas abstrait et ne remplace pas la méthode abstraite onLocationChanged (Location) dans LocationListener
De toute façon, je ne suis pas en mesure de résoudre le problème.
Voici la classe de fragmentation.
package com.example.mudasir.login.fragments;
import android.Manifest;
import android.app.ProgressDialog;
import android.content.Context;
import android.content.pm.PackageManager;
import android.content.res.Resources;
import android.location.Address;
import android.location.Geocoder;
import android.location.Location;
import android.location.LocationManager;
import android.media.audiofx.AudioEffect;
import android.os.AsyncTask;
import android.os.Bundle;
import android.support.annotation.Nullable;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.EditText;
import android.widget.Toast;
import com.example.mudasir.login.R;
import com.google.android.gms.location.LocationListener;
import com.google.android.gms.maps.CameraUpdate;
import com.google.android.gms.maps.CameraUpdateFactory;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.OnMapReadyCallback;
import com.google.android.gms.maps.SupportMapFragment;
import com.google.android.gms.maps.model.LatLng;
import com.google.android.gms.maps.model.LatLngBounds;
import com.google.android.gms.maps.model.Marker;
import com.google.android.gms.maps.model.MarkerOptions;
import java.io.IOException;
import java.util.List;
/**
* A simple {@link Fragment} subclass.
*/
public class LocatorsFragment extends Fragment implements OnMapReadyCallback, View.OnClickListener, LocationListener {
private GoogleMap mMap;
private Button btnShowroom;
private Button btnService;
private Button btnParts;
private Button btnGas;
private Button btnAtm;
private Button btnSearch;
private EditText searchQuery;
Resources stringArrayResource;
private String[] showroomAddresses;
private String[] serviceAddresses;
private String[] partsAddresses;
private String searchQueryString;
private android.location.Address address = null;
List<Address> addressList = null;
LatLng latLng;
Geocoder geocoder;
Marker marker;
LatLngBounds bounds;
CameraUpdate cu;
ProgressDialog dialog;
boolean flag = false;
private LocationManager locationManager;
private LocationListener locationListener;
public LocatorsFragment() {
}
@Nullable
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View view = inflater.inflate(R.layout.fragment_maps_, container, false);
locationManager = (LocationManager) getActivity().getSystemService(Context.LOCATION_SERVICE);
locationListener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
latLng = new LatLng((double) location.getLatitude(), (double) location.getLongitude());
marker = mMap.addMarker(new MarkerOptions().position(latLng).title("Pin 1"));
}
};
initUI(view);
return view;
}
private void initUI(View view) {
btnShowroom = (Button) view.findViewById(R.id.btn_showroom);
btnService = (Button) view.findViewById(R.id.btn_service);
btnParts = (Button) view.findViewById(R.id.btn_parts);
btnGas = (Button) view.findViewById(R.id.btn_gas);
btnAtm = (Button) view.findViewById(R.id.btn_atm);
btnSearch = (Button) view.findViewById(R.id.btn_search);
searchQuery = (EditText) view.findViewById(R.id.editext_search);
btnShowroom.setOnClickListener(this);
btnService.setOnClickListener(this);
btnParts.setOnClickListener(this);
btnGas.setOnClickListener(this);
btnAtm.setOnClickListener(this);
btnSearch.setOnClickListener(this);
stringArrayResource = getActivity().getResources();
showroomAddresses = stringArrayResource.getStringArray(R.array.showroom_array);
serviceAddresses = stringArrayResource.getStringArray(R.array.service_array);
partsAddresses = stringArrayResource.getStringArray(R.array.parts_array);
}
@Override
public void onViewCreated(View view, Bundle savedInstanceState) {
SupportMapFragment mapFragment = (SupportMapFragment) getChildFragmentManager().findFragmentById(R.id.maps);
mapFragment.getMapAsync(this);
}
@Override
public void onMapReady(GoogleMap googleMap) {
mMap = googleMap;
// if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// // TODO: Consider calling
// // ActivityCompat#requestPermissions
// // here to request the missing permissions, and then overriding
// // public void onRequestPermissionsResult(int requestCode, String[] permissions,
// // int[] grantResults)
// // to handle the case where the user grants the permission. See the documentation
// // for ActivityCompat#requestPermissions for more details.
// }
// mMap.setMyLocationEnabled(true);
}
public void render_Map(String[] addresses,LatLngBounds.Builder builder)
{
//mMap.clear();
geocoder = new Geocoder(getActivity());
for (int i = 0; i < 5; i++) {
try {
addressList = geocoder.getFromLocationName(addresses[i], 1);
} catch (IOException e) {
e.printStackTrace();
}
address = addressList.get(0);
latLng = new LatLng(address.getLatitude(), address.getLongitude());
marker = mMap.addMarker(new MarkerOptions().position(latLng).title(addresses[i]));
builder.include(marker.getPosition());
}
bounds = builder.build();
int padding = 0;
cu = CameraUpdateFactory.newLatLngBounds(bounds, padding);
mMap.animateCamera(cu);
}
@Override
public void onClick(View view) {
switch(view.getId()) {
case R.id.btn_showroom:
//new ShowProgressBar().execute("abc",null,null);
LatLngBounds.Builder builder1 = new LatLngBounds.Builder();
render_Map(showroomAddresses,builder1);
flag = true;
// dialog.cancel();
break;
case R.id.btn_service:
LatLngBounds.Builder builder2 = new LatLngBounds.Builder();
render_Map(serviceAddresses,builder2);
break;
case R.id.btn_parts:
LatLngBounds.Builder builder3 = new LatLngBounds.Builder();
render_Map(partsAddresses,builder3);
break;
case R.id.btn_gas:
Toast.makeText(getActivity(),getString(R.string.in_progress_text), Toast.LENGTH_SHORT).show();
break;
case R.id.btn_atm:
Toast.makeText(getActivity(),getString(R.string.in_progress_text), Toast.LENGTH_SHORT).show();
break;
case R.id.btn_search:
searchQueryString = searchQuery.getText().toString();
List<Address> addressList1 = null;
if(searchQueryString != null && !searchQueryString.equals(""))
{
geocoder = new Geocoder(getContext());
try {
addressList1 = geocoder.getFromLocationName(searchQueryString, 1);
} catch (IOException e) {
e.printStackTrace();
}
address = addressList1.get(0);
latLng = new LatLng(address.getLatitude(), address.getLongitude());
mMap.addMarker(new MarkerOptions().position(latLng).title(searchQueryString));
mMap.animateCamera(CameraUpdateFactory.newLatLng(latLng));
}
else{
if (ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getActivity(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
// TODO: Consider calling
// ActivityCompat#requestPermissions
// here to request the missing permissions, and then overriding
// public void onRequestPermissionsResult(int requestCode, String[] permissions,
// int[] grantResults)
// to handle the case where the user grants the permission. See the documentation
// for ActivityCompat#requestPermissions for more details.
//return TODO;
}
locationManager.requestLocationUpdates(locationManager.GPS_PROVIDER, 0, 0, (android.location.LocationListener) locationListener);
Toast.makeText(getActivity(),getString(R.string.missing_search_query_error_message), Toast.LENGTH_SHORT).show();}
break;
}
}
private class ShowProgressBar extends AsyncTask<String, Void, Void> {
@Override
protected void onPreExecute() {
dialog = ProgressDialog.show(getActivity(), "",
"Loading. Please wait...", true);
}
@Override
protected Void doInBackground(String... strings) {
while (!flag == true)
{
}
return null;
}
@Override
protected void onPostExecute(Void aVoid) {
super.onPostExecute(aVoid);
dialog.dismiss();
}
}
}
Logcat:
Information:Gradle tasks [:app:assembleDebug]
C:\Users\mudasir\AndroidStudioProjects\BasicSampleApplication\app\src\main\java\com\example\mudasir\login\fragments\LocatorsFragment.java
Error:(45, 8) error: LocatorsFragment is not abstract and does not override abstract method onLocationChanged(Location) in LocationListener
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.
Information:BUILD FAILED
Information:Total time: 6.188 secs
Information:2 errors
Information:0 warnings
Information:See complete output in console
Stack Trace:
11-18 17:32:17.347 10630-10630/com.example.mudasir.login E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.example.mudasir.login, PID: 10630
java.lang.ClassCastException: com.example.mudasir.login.fragments.LocatorsFragment$1 cannot be cast to android.location.LocationListener
at com.example.mudasir.login.fragments.LocatorsFragment.onClick(LocatorsFragment.java:230)
at android.view.View.performClick(View.java:4766)
at android.view.View$PerformClick.run(View.java:19683)
at android.os.Handler.handleCallback(Handler.java:739)
at android.os.Handler.dispatchMessage(Handler.java:95)
at android.os.Looper.loop(Looper.java:135)
at android.app.ActivityThread.main(ActivityThread.java:5538)
at java.lang.reflect.Method.invoke(Native Method)
at java.lang.reflect.Method.invoke(Method.java:372)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:960)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Ajouter une sortie logcat ainsi – Neji
Logcat mis à jour. –