Action pour le changement de statut GPS

Question

Je cherche une action pour IntentFilter qui est fournie lorsque le statut GPS est modifié. J'ai trouvé ceci filter.addAction("android.location.GPS_ENABLED_CHANGE"); mais cela ne fonctionne pas. Je regarde la même chose que j'ai pour bluetooth
filter.addAction(BluetoothAdapter.ACTION_STATE_CHANGED); mais pour le GPS.

Answer 1

Voici un exemple.

public class Main extends Activity implements LocationListener { 

    /* this class implements LocationListener, which listens for both 
    * changes in the location of the device and changes in the status 
    * of the GPS system. 
    * */ 

    static final String tag = "Main"; // for Log 

    LocationManager lm; 
    StringBuilder sb; 
    int noOfFixes = 0; 

    /** Called when the activity is first created. */ 
    @Override 
    public void onCreate(Bundle savedInstanceState) { 
     super.onCreate(savedInstanceState); 
     setContentView(R.layout.main); 

     /* the location manager is the most vital part it allows access 
     * to location and GPS status services */ 
     lm = (LocationManager) getSystemService(LOCATION_SERVICE); 
    } 

    @Override 
    protected void onResume() { 
     /* 
     * onResume is is always called after onStart, even if the app hasn't been 
     * paused 
     * 
     * add location listener and request updates every 1000ms or 10m 
     */ 
     lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 10f, this); 
     super.onResume(); 
    } 

    @Override 
    protected void onPause() { 
     /* GPS, as it turns out, consumes battery like crazy */ 
     lm.removeUpdates(this); 
     super.onPause(); 
    } 

    @Override 
    public void onLocationChanged(Location location) { 
     Log.v(tag, "Location Changed"); 

     sb = new StringBuilder(512); 

     noOfFixes++; 

     /* display some of the data in the TextView */ 

     sb.append("No. of Fixes: "); 
     sb.append(noOfFixes); 
     sb.append('\n'); 
     sb.append('\n'); 

     sb.append("Londitude: "); 
     sb.append(location.getLongitude()); 
     sb.append('\n'); 

     sb.append("Latitude: "); 
     sb.append(location.getLatitude()); 
     sb.append('\n'); 

     sb.append("Altitiude: "); 
     sb.append(location.getAltitude()); 
     sb.append('\n'); 

     sb.append("Accuracy: "); 
     sb.append(location.getAccuracy()); 
     sb.append('\n'); 

     sb.append("Timestamp: "); 
     sb.append(location.getTime()); 
     sb.append('\n'); 
     Log.v(tag, sb.toString()); 
    } 

    @Override 
    public void onProviderDisabled(String provider) { 
     /* this is called if/when the GPS is disabled in settings */ 
     Log.v(tag, "Disabled"); 

     /* bring up the GPS settings */ 
     Intent intent = new Intent(
       android.provider.Settings.ACTION_LOCATION_SOURCE_SETTINGS); 
     startActivity(intent); 
    } 

    @Override 
    public void onProviderEnabled(String provider) { 
     Log.v(tag, "Enabled"); 
     Toast.makeText(this, "GPS Enabled", Toast.LENGTH_SHORT).show(); 

    } 

    @Override 
    public void onStatusChanged(String provider, int status, Bundle extras) { 
     /* This is called when the GPS status alters */ 
     switch (status) { 
     case LocationProvider.OUT_OF_SERVICE: 
      Log.v(tag, "Status Changed: Out of Service"); 
      Toast.makeText(this, "Status Changed: Out of Service", 
        Toast.LENGTH_SHORT).show(); 
      break; 
     case LocationProvider.TEMPORARILY_UNAVAILABLE: 
      Log.v(tag, "Status Changed: Temporarily Unavailable"); 
      Toast.makeText(this, "Status Changed: Temporarily Unavailable", 
        Toast.LENGTH_SHORT).show(); 
      break; 
     case LocationProvider.AVAILABLE: 
      Log.v(tag, "Status Changed: Available"); 
      Toast.makeText(this, "Status Changed: Available", 
        Toast.LENGTH_SHORT).show(); 
      break; 
     } 
    } 

    @Override 
    protected void onStop() { 
     /* may as well just finish since saving the state is not important for this toy app */ 
     finish(); 
     super.onStop(); 
    } 
} 

Answer 2

essayez ceci:

filter.addAction("android.location.PROVIDERS_CHANGED")