problem display current location with custom SpatialReference
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07-21-2019 09:07 AM
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i want to display the location on the map, i new map with:
ArcGISTiledLayer usaLayer = new ArcGISTiledLayer(getResources().getString(R.string.map_layer));
map = new ArcGISMap(SpatialReference.create(getResources().getString(R.string.wkid)));
and show location but location deviate about 300m from the current location; my code
map = new ArcGISMap(SpatialReference.create(getResources().getString(R.string.wkString))); // Viewpoint viewPoint1 = new Viewpoint(new Point(433214.603,1211184.161, map.getSpatialReference()), 1000000); // map.setInitialViewpoint(viewPoint1); // map = new ArcGISMap(); map.getBasemap().getBaseLayers().add(usaLayer); mMapView = (MapView) findViewById(R.id.mapView); BackgroundGrid backgroundGrid = new BackgroundGrid(Color.WHITE,Color.WHITE,0,2); mMapView.setBackgroundGrid(backgroundGrid); mMapView.setMap(map); Viewpoint viewPoint = new Viewpoint(new Point(433214.603,1211184.161, map.getSpatialReference()), 1000000); mMapView.setViewpoint(viewPoint); // map.setInitialViewpoint(view); mMapView.setAttributionTextVisible(false);
mLocationDisplay = mMapView.getLocationDisplay(); mLocationDisplay.addDataSourceStatusChangedListener(new LocationDisplay.DataSourceStatusChangedListener() { @Override public void onStatusChanged(LocationDisplay.DataSourceStatusChangedEvent dataSourceStatusChangedEvent) { // If LocationDisplay started OK, then continue. if (dataSourceStatusChangedEvent.isStarted()) return; // No error is reported, then continue. if (dataSourceStatusChangedEvent.getError() == null) return; // If an error is found, handle the failure to start. // Check permissions to see if failure may be due to lack of permissions. boolean permissionCheck1 = ContextCompat.checkSelfPermission(MainActivity.this, reqPermissions[0]) == PackageManager.PERMISSION_GRANTED; boolean permissionCheck2 = ContextCompat.checkSelfPermission(MainActivity.this, reqPermissions[1]) == PackageManager.PERMISSION_GRANTED; if (!(permissionCheck1 && permissionCheck2)) { // If permissions are not already granted, request permission from the user. ActivityCompat.requestPermissions(MainActivity.this, reqPermissions, requestCode); } else { // Report other unknown failure types to the user - for example, location services may not // be enabled on the device. String message = String.format("Error in DataSourceStatusChangedListener: %s", dataSourceStatusChangedEvent .getSource().getLocationDataSource().getError().getMessage()); Toast.makeText(MainActivity.this, message, Toast.LENGTH_LONG).show(); // Update UI to reflect that the location display did not actually start mSpinner.setSelection(0, true); } } }); // Populate the list for the Location display options for the spinner's Adapter ArrayList<ItemData> list = new ArrayList<>(); list.add(new ItemData("", R.mipmap.locationdisplaydisabled)); list.add(new ItemData("", R.mipmap.locationdisplayon)); list.add(new ItemData("", R.mipmap.locationdisplayrecenter)); list.add(new ItemData("", R.mipmap.locationdisplaynavigation)); list.add(new ItemData("", R.mipmap.locationdisplayheading)); SpinnerAdapter adapter = new SpinnerAdapter(this, R.layout.spinner_layout, R.id.txt, list); mSpinner.setAdapter(adapter); mSpinner.setOnItemSelectedListener(new AdapterView.OnItemSelectedListener() { @Override public void onItemSelected(AdapterView<?> parent, View view, int position, long id) { switch (position) { case 0: // Stop Location Display if (mLocationDisplay.isStarted()) mLocationDisplay.stop(); break; case 1: // Start Location Display if (!mLocationDisplay.isStarted()) mLocationDisplay.startAsync(); break; case 2: // Re-Center MapView on Location // AutoPanMode - Default: In this mode, the MapView attempts to keep the location symbol on-screen by // re-centering the location symbol when the symbol moves outside a "wander extent". The location symbol // may move freely within the wander extent, but as soon as the symbol exits the wander extent, the MapView // re-centers the map on the symbol. mLocationDisplay.setAutoPanMode(LocationDisplay.AutoPanMode.RECENTER); if (!mLocationDisplay.isStarted()) mLocationDisplay.startAsync(); break; case 3: // Start Navigation Mode // This mode is best suited for in-vehicle navigation. mLocationDisplay.setAutoPanMode(LocationDisplay.AutoPanMode.NAVIGATION); if (!mLocationDisplay.isStarted()) mLocationDisplay.startAsync(); break; case 4: // Start Compass Mode // This mode is better suited for waypoint navigation when the user is walking. mLocationDisplay.setAutoPanMode(LocationDisplay.AutoPanMode.COMPASS_NAVIGATION); if (!mLocationDisplay.isStarted()) mLocationDisplay.startAsync(); break; } } @Override public void onNothingSelected(AdapterView<?> parent) { } });
Everything works fine, but the location service is not correct
