package eu.siacs.conversations.ui; import android.Manifest; import android.annotation.TargetApi; import android.content.Context; import android.content.SharedPreferences; import android.content.pm.PackageManager; import android.graphics.Bitmap; import android.graphics.BitmapFactory; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Build; import android.os.Bundle; import android.preference.PreferenceManager; import android.provider.Settings; import android.support.annotation.BoolRes; import android.support.annotation.NonNull; import android.text.TextUtils; import android.util.Log; import android.view.MenuItem; import org.osmdroid.api.IGeoPoint; import org.osmdroid.api.IMapController; import org.osmdroid.config.Configuration; import org.osmdroid.config.IConfigurationProvider; import org.osmdroid.tileprovider.tilesource.XYTileSource; import org.osmdroid.util.GeoPoint; import org.osmdroid.views.MapView; import org.osmdroid.views.overlay.Overlay; import java.io.File; import java.io.IOException; import eu.siacs.conversations.BuildConfig; import eu.siacs.conversations.Config; import eu.siacs.conversations.R; import eu.siacs.conversations.http.HttpConnectionManager; import eu.siacs.conversations.ui.util.LocationHelper; import eu.siacs.conversations.ui.widget.Marker; import eu.siacs.conversations.ui.widget.MyLocation; import eu.siacs.conversations.utils.ThemeHelper; public abstract class LocationActivity extends ActionBarActivity implements LocationListener { protected LocationManager locationManager; protected boolean hasLocationFeature; public static final int REQUEST_CODE_CREATE = 0; public static final int REQUEST_CODE_FAB_PRESSED = 1; public static final int REQUEST_CODE_SNACKBAR_PRESSED = 2; protected static final String KEY_LOCATION = "loc"; protected static final String KEY_ZOOM_LEVEL = "zoom"; protected Location myLoc = null; private MapView map = null; protected IMapController mapController = null; protected Bitmap marker_icon; protected void clearMarkers() { synchronized (this.map.getOverlays()) { for (final Overlay overlay : this.map.getOverlays()) { if (overlay instanceof Marker || overlay instanceof MyLocation) { this.map.getOverlays().remove(overlay); } } } } protected void updateLocationMarkers() { clearMarkers(); } protected XYTileSource tileSource() { return new XYTileSource("OpenStreetMap", 0, 19, 256, ".png", new String[] { "https://a.tile.openstreetmap.org/", "https://b.tile.openstreetmap.org/", "https://c.tile.openstreetmap.org/" },"© OpenStreetMap contributors"); } @Override protected void onCreate(final Bundle savedInstanceState) { super.onCreate(savedInstanceState); final Context ctx = getApplicationContext(); setTheme(ThemeHelper.find(this)); final PackageManager packageManager = ctx.getPackageManager(); hasLocationFeature = packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION) || packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_GPS) || packageManager.hasSystemFeature(PackageManager.FEATURE_LOCATION_NETWORK); this.locationManager = (LocationManager) this.getSystemService(Context.LOCATION_SERVICE); this.marker_icon = BitmapFactory.decodeResource(ctx.getResources(), R.drawable.marker); // Ask for location permissions if location services are enabled and we're // just starting the activity (we don't want to keep pestering them on every // screen rotation or if there's no point because it's disabled anyways). if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && savedInstanceState == null) { requestPermissions(REQUEST_CODE_CREATE); } final IConfigurationProvider config = Configuration.getInstance(); config.load(ctx, getPreferences()); config.setUserAgentValue(BuildConfig.APPLICATION_ID + "_" + BuildConfig.VERSION_CODE); if (Config.FORCE_ORBOT || getBooleanPreference("use_tor", R.bool.use_tor)) { try { config.setHttpProxy(HttpConnectionManager.getProxy()); } catch (IOException e) { throw new RuntimeException("Unable to configure proxy"); } } final File f = new File(ctx.getCacheDir() + "/tiles"); try { //noinspection ResultOfMethodCallIgnored f.mkdirs(); } catch (final SecurityException ignored) { } if (f.exists() && f.isDirectory() && f.canRead() && f.canWrite()) { Log.d(Config.LOGTAG, "Using tile cache at: " + f.getAbsolutePath()); config.setOsmdroidTileCache(f.getAbsoluteFile()); } } @Override protected void onSaveInstanceState(@NonNull final Bundle outState) { super.onSaveInstanceState(outState); final IGeoPoint center = map.getMapCenter(); outState.putParcelable(KEY_LOCATION, new GeoPoint( center.getLatitude(), center.getLongitude() )); outState.putDouble(KEY_ZOOM_LEVEL, map.getZoomLevelDouble()); } @Override protected void onRestoreInstanceState(@NonNull final Bundle savedInstanceState) { super.onRestoreInstanceState(savedInstanceState); if (savedInstanceState.containsKey(KEY_LOCATION)) { mapController.setCenter(savedInstanceState.getParcelable(KEY_LOCATION)); } if (savedInstanceState.containsKey(KEY_ZOOM_LEVEL)) { mapController.setZoom(savedInstanceState.getDouble(KEY_ZOOM_LEVEL)); } } protected void setupMapView(MapView mapView, final GeoPoint pos) { map = mapView; map.setTileSource(tileSource()); map.setBuiltInZoomControls(false); map.setMultiTouchControls(true); map.setTilesScaledToDpi(true); mapController = map.getController(); mapController.setZoom(Config.Map.INITIAL_ZOOM_LEVEL); mapController.setCenter(pos); } protected void gotoLoc() { gotoLoc(map.getZoomLevelDouble() == Config.Map.INITIAL_ZOOM_LEVEL); } protected abstract void gotoLoc(final boolean setZoomLevel); protected abstract void setMyLoc(final Location location); protected void requestLocationUpdates() { if (!hasLocationFeature || locationManager == null) { return; } Log.d(Config.LOGTAG, "Requesting location updates..."); final Location lastKnownLocationGps; final Location lastKnownLocationNetwork; try { if (locationManager.getAllProviders().contains(LocationManager.GPS_PROVIDER)) { lastKnownLocationGps = locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER); if (lastKnownLocationGps != null) { setMyLoc(lastKnownLocationGps); } locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, Config.Map.LOCATION_FIX_TIME_DELTA, Config.Map.LOCATION_FIX_SPACE_DELTA, this); } else { lastKnownLocationGps = null; } if (locationManager.getAllProviders().contains(LocationManager.NETWORK_PROVIDER)) { lastKnownLocationNetwork = locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER); if (lastKnownLocationNetwork != null && LocationHelper.isBetterLocation(lastKnownLocationNetwork, lastKnownLocationGps)) { setMyLoc(lastKnownLocationNetwork); } locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, Config.Map.LOCATION_FIX_TIME_DELTA, Config.Map.LOCATION_FIX_SPACE_DELTA, this); } // If something else is also querying for location more frequently than we are, the battery is already being // drained. Go ahead and use the existing locations as often as we can get them. if (locationManager.getAllProviders().contains(LocationManager.PASSIVE_PROVIDER)) { locationManager.requestLocationUpdates(LocationManager.PASSIVE_PROVIDER, 0, 0, this); } } catch (final SecurityException ignored) { // Do nothing if the users device has no location providers. } } protected void pauseLocationUpdates() throws SecurityException { if (locationManager != null) { locationManager.removeUpdates(this); } } @Override public boolean onOptionsItemSelected(final MenuItem item) { switch (item.getItemId()) { case android.R.id.home: finish(); return true; } return super.onOptionsItemSelected(item); } @Override protected void onPause() { super.onPause(); Configuration.getInstance().save(this, getPreferences()); map.onPause(); try { pauseLocationUpdates(); } catch (final SecurityException ignored) { } } protected abstract void updateUi(); protected boolean mapAtInitialLoc() { return map.getZoomLevelDouble() == Config.Map.INITIAL_ZOOM_LEVEL; } @Override protected void onResume() { super.onResume(); Configuration.getInstance().load(this, getPreferences()); map.onResume(); this.setMyLoc(null); requestLocationUpdates(); updateLocationMarkers(); updateUi(); map.setTileSource(tileSource()); map.setTilesScaledToDpi(true); if (mapAtInitialLoc()) { gotoLoc(); } } @TargetApi(Build.VERSION_CODES.M) protected boolean hasLocationPermissions() { return (checkSelfPermission(Manifest.permission.ACCESS_FINE_LOCATION) == PackageManager.PERMISSION_GRANTED || checkSelfPermission(Manifest.permission.ACCESS_COARSE_LOCATION) == PackageManager.PERMISSION_GRANTED); } @TargetApi(Build.VERSION_CODES.M) protected void requestPermissions(final int request_code) { if (!hasLocationPermissions()) { requestPermissions( new String[]{ Manifest.permission.ACCESS_FINE_LOCATION, Manifest.permission.ACCESS_COARSE_LOCATION, }, request_code ); } } @Override public void onRequestPermissionsResult(final int requestCode, @NonNull final String[] permissions, @NonNull final int[] grantResults) { super.onRequestPermissionsResult(requestCode, permissions, grantResults); for (int i = 0; i < grantResults.length; i++) { if (Manifest.permission.ACCESS_FINE_LOCATION.equals(permissions[i]) || Manifest.permission.ACCESS_COARSE_LOCATION.equals(permissions[i])) { if (grantResults[i] == PackageManager.PERMISSION_GRANTED) { requestLocationUpdates(); } } } } protected SharedPreferences getPreferences() { return PreferenceManager.getDefaultSharedPreferences(getApplicationContext()); } protected boolean getBooleanPreference(String name, @BoolRes int res) { return getPreferences().getBoolean(name, getResources().getBoolean(res)); } protected boolean isLocationEnabled() { try { final int locationMode = Settings.Secure.getInt(getContentResolver(), Settings.Secure.LOCATION_MODE); return locationMode != Settings.Secure.LOCATION_MODE_OFF; } catch( final Settings.SettingNotFoundException e ){ return false; } } }