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私は、融合したAPIで開始されたサービスを使用し、その上に直接ロケーションリスナーを実装します。 場所は画面がロックされている間も更新され続けますが、画面が消えると停止します。Android、画面が表示されていないときの位置を取得
したがって、画面がオフになっても場所が更新され続けるようにする方法はありますか？
私は他の多くの質問を読んでいます。私は本当に何が欠けているのか分かりません。
public class CLocationService extends Service implements GoogleApiClient.ConnectionCallbacks, LocationListener,
GoogleApiClient.OnConnectionFailedListener {
private GoogleApiClient mGoogleApiClient;
private PowerManager.WakeLock mWakeLock;
private LocationRequest mLocationRequest;
// Flag that indicates if a request is underway.
private boolean mInProgress;
private Boolean servicesAvailable = false;
private boolean isStarted;
public static final int LOCATION_SERVICE_NOTIFICATION_ID = 4567654;
private void showNotification() {
Intent notificationIntent = new Intent(this, MainActivity.class);
PendingIntent pendingIntent = PendingIntent.getActivity(this, 0, notificationIntent, 0);
Notification notification = new Notification.Builder(this)
.setContentTitle(getText(R.string.app_name))
.setContentText("")
.setSmallIcon(R.mipmap.ic_notification)
.setContentIntent(pendingIntent)
.setTicker("")
.build();
startForeground(LOCATION_SERVICE_NOTIFICATION_ID, notification);
}
@Nullable
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
/*
* Create a new location client, using the enclosing class to
* handle callbacks.
*/
setUpLocationClientIfNeeded();
startLocationServices();
}
/*
* Create a new location client, using the enclosing class to
* handle callbacks.
*/
protected synchronized void buildGoogleApiClient() {
this.mGoogleApiClient = new GoogleApiClient.Builder(this)
.addConnectionCallbacks(this)
.addOnConnectionFailedListener(this)
.addApi(LocationServices.API)
.build();
}
private boolean servicesConnected() {
// Check that Google Play services is available
int resultCode = GooglePlayServicesUtil.isGooglePlayServicesAvailable(this);
// If Google Play services is available
if (ConnectionResult.SUCCESS == resultCode) {
return true;
} else {
return false;
}
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
PowerManager mgr = (PowerManager) getSystemService(Context.POWER_SERVICE);
/*
WakeLock is reference counted so we don't want to create multiple WakeLocks. So do a check before initializing and acquiring.
This will fix the "java.lang.Exception: WakeLock finalized while still held: MyWakeLock" error that you may find.
*/
if (this.mWakeLock == null) { //**Added this
this.mWakeLock = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK, "MyWakeLock");
}
if (!this.mWakeLock.isHeld()) { //**Added this
this.mWakeLock.acquire();
}
if (!servicesAvailable || mGoogleApiClient.isConnected() || mInProgress)
return START_STICKY;
setUpLocationClientIfNeeded();
if (!mGoogleApiClient.isConnected() || !mGoogleApiClient.isConnecting() && !mInProgress) {
mInProgress = true;
mGoogleApiClient.connect();
}
return START_STICKY;
}
private void setUpLocationClientIfNeeded() {
if (mGoogleApiClient == null)
buildGoogleApiClient();
}
@Override
public void onDestroy() {
stopLocationServices();
super.onDestroy();
}
private void startLocationServices() {
mInProgress = false;
// Create the LocationRequest object
mLocationRequest = LocationRequest.create();
// Use high accuracy
mLocationRequest.setPriority(LocationRequest.PRIORITY_HIGH_ACCURACY);
// Set the update interval to 5 seconds
mLocationRequest.setInterval(5000);
// Set the fastest update interval to 1 second
mLocationRequest.setFastestInterval(1000);
mLocationRequest.setSmallestDisplacement(0);
servicesAvailable = servicesConnected();
}
private void stopLocationServices() {
// Turn off the request flag
this.mInProgress = false;
if (this.servicesAvailable && this.mGoogleApiClient != null) {
this.mGoogleApiClient.unregisterConnectionCallbacks(this);
this.mGoogleApiClient.unregisterConnectionFailedListener(this);
this.mGoogleApiClient.disconnect();
// Destroy the current location client
this.mGoogleApiClient = null;
}
// Display the connection status
// Toast.makeText(this, DateFormat.getDateTimeInstance().format(new Date()) + ":
// Disconnected. Please re-connect.", Toast.LENGTH_SHORT).show();
if (this.mWakeLock != null) {
this.mWakeLock.release();
this.mWakeLock = null;
}
}
private void cancelNotification() {
NotificationManager nMgr = (NotificationManager) getApplicationContext().getSystemService(Context.NOTIFICATION_SERVICE);
nMgr.cancel(LOCATION_SERVICE_NOTIFICATION_ID);
}
@Override
public void onLocationChanged(Location location) {
// log the new location
}
@Override
public void onConnected(@Nullable Bundle bundle) {
if (ActivityCompat.checkSelfPermission(this, Manifest.permission.ACCESS_FINE_LOCATION) != PackageManager.PERMISSION_GRANTED && ActivityCompat.checkSelfPermission(this, 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;
}
LocationServices.FusedLocationApi.requestLocationUpdates(this.mGoogleApiClient,
mLocationRequest, this); // This is the changed line.
}
@Override
public void onConnectionSuspended(int i) {
// Turn off the request flag
mInProgress = false;
// Destroy the current location client
mGoogleApiClient = null;
}
@Override
public void onConnectionFailed(@NonNull ConnectionResult connectionResult) {
mInProgress = false;
/*
* Google Play services can resolve some errors it detects.
* If the error has a resolution, try sending an Intent to
* start a Google Play services activity that can resolve
* error.
*/
if (connectionResult.hasResolution()) {
// If no resolution is available, display an error dialog
} else {
}
}
}