Android: Kann ich aktivieren das GPS, ohne dass der Benutzer, um den Bildschirm "Einstellungen" wie in "google maps" - app

Haben, die Funktion, die Sie brauchen:

• Erste (zumindest) die version 7.0 von play-Dienste

compile 'com.google.android.gms:play-services-location:16.0.0'

• Zweiten etwas ähnliches in Ihrem code (ich hatte es in meiner onCreate):

-

 //Check the location settings of the user and create the callback to react to the different possibilities
LocationSettingsRequest.Builder locationSettingsRequestBuilder = new LocationSettingsRequest.Builder()
                .addLocationRequest(mLocationRequest);
PendingResult<LocationSettingsResult> result =
                LocationServices.SettingsApi.checkLocationSettings(mGoogleApiClient, locationSettingsRequestBuilder.build());
result.setResultCallback(mResultCallbackFromSettings);

Erstellen und dann der Rückruf:

//The callback for the management of the user settings regarding location
private ResultCallback<LocationSettingsResult> mResultCallbackFromSettings = new ResultCallback<LocationSettingsResult>() {
    @Override
    public void onResult(LocationSettingsResult result) {
        final Status status = result.getStatus();
        //final LocationSettingsStates locationSettingsStates = result.getLocationSettingsStates();
        switch (status.getStatusCode()) {
            case LocationSettingsStatusCodes.SUCCESS:
                //All location settings are satisfied. The client can initialize location
                //requests here.
                break;
            case LocationSettingsStatusCodes.RESOLUTION_REQUIRED:
                //Location settings are not satisfied. But could be fixed by showing the user
                //a dialog.
                try {
                    //Show the dialog by calling startResolutionForResult(),
                    //and check the result in onActivityResult().
                    status.startResolutionForResult(
                            MapActivity.this,
                            REQUEST_CHECK_SETTINGS);
                } catch (IntentSender.SendIntentException e) {
                    //Ignore the error.
                }
                break;
            case LocationSettingsStatusCodes.SETTINGS_CHANGE_UNAVAILABLE:
                Log.e(TAG, "Settings change unavailable. We have no way to fix the settings so we won't show the dialog.");
                break;
        }
    }
};

Und dann, endlich, in onActivityResult hatte ich folgende:

/**
 * Used to check the result of the check of the user location settings
 *
 * @param requestCode code of the request made
 * @param resultCode code of the result of that request
 * @param intent intent with further information
 */
@Override
protected void onActivityResult(int requestCode, int resultCode, Intent intent) {
    //final LocationSettingsStates states = LocationSettingsStates.fromIntent(intent);
    switch (requestCode) {
        case REQUEST_CHECK_SETTINGS:
            switch (resultCode) {
                case Activity.RESULT_OK:
                    //All required changes were successfully made
                    if (mGoogleApiClient.isConnected() && userMarker == null) {
                        startLocationUpdates();
                    }
                    break;
                case Activity.RESULT_CANCELED:
                    //The user was asked to change settings, but chose not to
                    break;
                default:
                    break;
            }
            break;
    }
}

InformationsquelleAutor AlvaroSantisteban