Я пытаюсь разработать свое первое приложение для Android.Моя цель - создать небольшое фитнес-приложение.В настоящее время я пытаюсь получить местоположение пользователя через IntentService, который я написал.Я использую LocationManager для этого и отправляю свои данные по трансляции.
Во фрагменте я использую широковещательный приемник для отображения фактических координат GPS.
К сожалению, я не получаюданные после того, как я дал приложению необходимые разрешения.
Вот файлы: GpsFragment.java
package ch.brad.fitit.fititreloaded;
import android.Manifest;
import android.content.BroadcastReceiver;
import android.content.Context;
import android.content.Intent;
import android.content.IntentFilter;
import android.content.pm.PackageManager;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.support.v4.app.ActivityCompat;
import android.support.v4.app.Fragment;
import android.util.Log;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.Button;
import android.widget.FrameLayout;
import android.widget.LinearLayout;
import android.widget.TextView;
public class GpsFragment extends Fragment {
private Button startButton, stopButton;
private TextView latLngText, speedLabel;
private BroadcastReceiver broadcastReceiver;
// private FileStorage fs;
private OnFragmentInteractionListener mListener;
public GpsFragment() {
// Required empty public constructor
}
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
}
private void enable_buttons(){
Log.d("GPS", "enabling buttons");
startButton.setOnClickListener(new View.OnClickListener() {
@Override
public void onClick(View view) {
Log.d("Action", "Start clicked");
getActivity().startService(new Intent(getActivity(), GPS_Service.class));
}
});
stopButton.setOnClickListener(new View.OnClickListener(){
@Override
public void onClick(View view){
Log.d("Action", "Stop clicked");
getActivity().stopService(new Intent(getActivity(), GPS_Service.class));
}
});
}
private boolean runtime_permissions(){
if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M) {
if (ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(getContext(), Manifest.permission.ACCESS_COARSE_LOCATION) != PackageManager.PERMISSION_GRANTED) {
requestPermissions(new String[] {
Manifest.permission.ACCESS_FINE_LOCATION,
Manifest.permission.ACCESS_COARSE_LOCATION,
Manifest.permission.INTERNET
}, 100);
return true;
}
}
return false;
}
public void onRequestPermissionsResult(int requestCode, String[] permissions, int[] grantResults) {
super.onRequestPermissionsResult(requestCode, permissions, grantResults);
if(requestCode == 100){
if(grantResults[0] == PackageManager.PERMISSION_GRANTED && grantResults[1] == PackageManager.PERMISSION_GRANTED){
enable_buttons();
} else {
runtime_permissions();
}
}
}
@Override
public View onCreateView(LayoutInflater inflater, ViewGroup container, Bundle savedInstanceState) {
View v = inflater.inflate(R.layout.fragment_gps, container, false);
startButton = (Button) v.findViewById(R.id.startButton);
stopButton = (Button) v.findViewById(R.id.stopButton);
// latLngText = (TextView) fl.findViewById(R.id.latLngText);
// speedLabel = (TextView) fl.findViewById(R.id.speedLabel);
if(!runtime_permissions()) enable_buttons();
// getActivity().registerReceiver(broadcastReceiver, new IntentFilter("location_update"));
if(broadcastReceiver == null){
broadcastReceiver = new BroadcastReceiver() {
@Override
public void onReceive(Context context, Intent intent) {
String coordString = (String) intent.getExtras().get("coordinates");
String speedString = (String) intent.getExtras().get("speed");
Log.d("GPS-DATA", coordString + " " + speedString);
// latLngText.append("\n" + coordString);
// speedLabel.append("\n" + speedString + " m/s");
// fs.writeData(coordString, getApplicationContext());
}
};
}
// Inflate the layout for this fragment
return v;
}
// TODO: Rename method, update argument and hook method into UI event
public void onButtonPressed(Uri uri) {
if (mListener != null) {
mListener.onFragmentInteraction(uri);
}
}
@Override
public void onAttach(Context context) {
super.onAttach(context);
if (context instanceof OnFragmentInteractionListener) {
mListener = (OnFragmentInteractionListener) context;
} else {
throw new RuntimeException(context.toString()
+ " must implement OnFragmentInteractionListener");
}
}
@Override
public void onDetach() {
super.onDetach();
mListener = null;
}
public void onDestroy(){
super.onDestroy();
if(broadcastReceiver != null) getActivity().unregisterReceiver(broadcastReceiver);
}
public interface OnFragmentInteractionListener {
// TODO: Update argument type and name
void onFragmentInteraction(Uri uri);
}
}
GPS_Service.java
package ch.brad.fitit.fititreloaded;
import android.annotation.SuppressLint;
import android.app.IntentService;
import android.content.Context;
import android.content.Intent;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.os.IBinder;
import android.provider.Settings;
import android.support.annotation.Nullable;
import android.util.Log;
public class GPS_Service extends IntentService {
private LocationListener listener;
private LocationManager locationManager;
private double oldLat;
private double oldLng;
private boolean firstSpeedCalculation = true;
private static int REFRESH_TIME = 1000;
public GPS_Service() { super("GPSService"); }
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
protected void onHandleIntent(@Nullable Intent intent) { }
@SuppressLint("MissingPermission")
@Override
public void onCreate() {
super.onCreate();
Log.d("service", "Starting Service");
listener = new LocationListener() {
@Override
public void onLocationChanged(Location location) {
Intent i = new Intent("location_update");
String speed = calcucalteSpeed(location.getLatitude(), location.getLongitude());
i.putExtra("coordinates", location.getLatitude() + " " + location.getLongitude());
i.putExtra("speed", speed);
Log.d("service", location.getLatitude() + " " + location.getLongitude());
sendBroadcast(i);
}
@Override
public void onStatusChanged(String s, int i, Bundle bundle) {}
@Override
public void onProviderEnabled(String s) {}
@Override
public void onProviderDisabled(String s) {
Intent i = new Intent(Settings.ACTION_LOCATION_SOURCE_SETTINGS);
i.setFlags(Intent.FLAG_ACTIVITY_NEW_TASK);
startActivity(i);
}
};
locationManager = (LocationManager) getApplicationContext().getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, REFRESH_TIME,0, listener);
}
@Override
public void onDestroy() {
super.onDestroy();
if(locationManager != null){
locationManager.removeUpdates(listener);
}
}
}
Знаете ли вы, гдепроблема в?Я что-то неправильно понимаю?Если вам нужно больше информации, дайте мне знать ...