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