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私は初心者のAndroidアプリケーションの開発です。私はSQLiteのDBへの送信のために5分ごとには、次のステップでGPSTracker.classから緯度と経度を取得しますが、私はGPSTracker.class
を呼び出すときには、緯度を返します= 0.0と経度= 0.0すぎサービスの緯度と経度が返ってきた0.0
これは私のコードです
私を助けてください
AppService.class
public class AppService extends Service {
private MyThread thread;
PowerManager.WakeLock wl;
double latitude;
double longitude;
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
thread = new MyThread();
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if (!thread.isAlive()) {
thread.start();
}
return START_STICKY;
}
private class MyThread extends Thread {
private static final String tag = "Sevice Demo";
private static final int delay = 300000;
private int roundNumber = 0;
private boolean finishService = false;
@Override
public void run() {
while (true) {
PowerManager pm = (PowerManager) getApplicationContext().getSystemService(
getApplicationContext().POWER_SERVICE);
wl = pm.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "");
wl.acquire();
wl.release();
GPSTracker gps = new GPSTracker(AppService.this);
latitude = gps.getLatitude();
longitude = gps.getLongitude();
Log.d("dddd",String.valueOf(latitude)+" & "+String.valueOf(longitude));
try {
sleep(delay);
} catch (InterruptedException e) {
e.printStackTrace();
}
if (finishService) {
return;
}
}
}
}
@Override
public void onDestroy() {
Toast.makeText(this, "Service Stop...", Toast.LENGTH_LONG).show();
if (thread.isAlive()) {
stopService(new Intent(this, AppService.class));
}
super.onDestroy();
}
public class GPSTracker extends Service implements LocationListener {
private final Context mContext;
boolean isGPSEnabled = false;
boolean isNetworkEnabled = false;
boolean canGetLocation = false;
Location locations;
private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 10;
private static final long MIN_TIME_BW_UPDATES = 1000 * 60 * 1;
protected LocationManager locationManager;
public GPSTracker(Context context) {
this.mContext = context;
getLocation();
}
public Location getLocation() {
try {
locationManager = (LocationManager) mContext
.getSystemService(LOCATION_SERVICE);
// get GPS status
isGPSEnabled = locationManager
.isProviderEnabled(LocationManager.GPS_PROVIDER);
// get network status
isNetworkEnabled = locationManager
.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
if (!isGPSEnabled && !isNetworkEnabled) {
// no network provider is enabled
} else {
this.canGetLocation = true;
if (isNetworkEnabled) {
if (ActivityCompat.checkSelfPermission(this, android.Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, android.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.NETWORK_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("Network", "Network");
}
if (locationManager != null) {
locations = locationManager
.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
if (locations != null) {
latitude = locations.getLatitude();
longitude = locations.getLongitude();
}
}
// if GPS Enabled get lat/long using GPS Services
if (isGPSEnabled) {
if (locations == null) {
locationManager.requestLocationUpdates(
LocationManager.GPS_PROVIDER,
MIN_TIME_BW_UPDATES,
MIN_DISTANCE_CHANGE_FOR_UPDATES, this);
Log.d("GPS Enabled", "GPS Enabled");
if (locationManager != null) {
locations = locationManager
.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if (locations != null) {
latitude = locations.getLatitude();
longitude = locations.getLongitude();
}
}
}
}
} catch (Exception e) {
e.printStackTrace();
}
return locations;
}
public double getLatitude() {
if (locations != null) {
latitude = locations.getLatitude();
}
return latitude;
}
public double getLongitude() {
if (locations != null) {
longitude = locations.getLongitude();
}
return longitude;
}
public boolean canGetLocation() {
return this.canGetLocation;
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onLocationChanged(Location location) {
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
}
}
get locationの取得にgoogleApiClientを使用すると、networkProviderが建物エリアで正しく機能しません。 –
マニフェストファイルも追加してください –
正確な位置を取得するには、 'FusedLocationProviderAPI'を使用してください。 – Piyush