I want to take value heading from void initState() to store them in a local database. But I failed. Do you have any idea how to handle this. I am new to dart and tried for days to solve that problem but can't do it.
class _CompassViewState extends State<CompassView> {
double heading = 0;
#override
void initState() {
FlutterCompass.events?.listen((event) {
if (mounted){
setState(() {
heading = event.heading!;
// bruecke().Kompass = heading;
if (heading < 0) {
[
heading = 360 + heading,
];
}
}
);}
}
);
super.initState();
}
Related
In on mapReady function of google map i have written
below: it basically forms cluster of marker location data and pass it
to the cluster manager
How can i do googleMap.animateCamera() on getInfoWindow() as it not working to get zoomed in by animating camera on click of marker
with popup opened.
mClusterManager = new ClusterManager<>(getActivity(), mMap);
mClusterManager.setAlgorithm(getAlgorithm());
mClusterManager.setRenderer(new MyRenderer(getActivity(), mMap));
mClusterManager.setAnimation(true);
//To set custom dialog on marker click
mClusterManager.getMarkerCollection().setInfoWindowAdapter(new PubLocationCustomClusterInfoView(this, getActivity(), pubArrayList, this, getMap()));
mClusterManager.setOnClusterItemClickListener(new ClusterManager.OnClusterItemClickListener<PubLocation>() {
#Override
public boolean onClusterItemClick(PubLocation item) {
return false;
}
});
PubLocationCustomClusterInfoView.java -- This is my custom view for
marker popup where i want to zoom in by animating google camera but im
unable to.
public class PubLocationCustomClusterInfoView implements GoogleMap.InfoWindowAdapter {
private View clusterItemView;
private static final String TAG = "PubLocationCustomCluste";
Context context;
private OnInfoWindowElemTouchListener infoButtonListener,orderFromPubListener;
ArrayList<PubData.Pub> pubArrayList;
MarkerInfoWindow markerInfoWindowlistner;
MapMarkerOnClickListener mapMarkerOnClickListener;
GoogleMap googleMap;
public PubLocationCustomClusterInfoView(MarkerInfoWindow markerInfoWindow, Context context, ArrayList<PubData.Pub> pubArrayList, MapMarkerOnClickListener mapMarkerOnClickListener,GoogleMap googleMap) {
LayoutInflater layoutInflater = LayoutInflater.from(context);
this.context=context;
this.markerInfoWindowlistner=markerInfoWindow;
this.pubArrayList=pubArrayList;
clusterItemView = layoutInflater.inflate(R.layout.marker_info_window, null);
this.mapMarkerOnClickListener = mapMarkerOnClickListener;
this.googleMap=googleMap;
}
#Override
public View getInfoWindow(Marker marker) {
Log.i(TAG, "getInfoWindow: "+marker);
return null;
}
#Override
public View getInfoContents(Marker marker) {
Log.i(TAG, "getInfoContents: "+marker);
PubLocation pubLocation = (PubLocation) marker.getTag();
// googleMap.animateCamera(CameraUpdateFactory.newLatLngZoom(marker.getPosition(),13));
if (pubLocation == null) return clusterItemView;
TextView itemNameTextView = clusterItemView.findViewById(R.id.itemNameTextView);
TextView itemAddressTextView = clusterItemView.findViewById(R.id.itemAddressTextView);
ImageButton pub_info=(ImageButton)clusterItemView.findViewById(R.id.pub_info);
Button order_from_pub=(Button) clusterItemView.findViewById(R.id.order_from_pub);
this.infoButtonListener = new OnInfoWindowElemTouchListener(pub_info) //btn_default_pressed_holo_light
{
#Override
protected void onClickConfirmed(View v, Marker marker) {
// Here we can perform some action triggered after clicking the button
Log.i(TAG, "onClickConfirmed: ");
Intent intent=new Intent(context,PubInfoActivity.class);
intent.putExtra(Constants.PUB_ID_KEY, pubLocation.getPubId());
context.startActivity(intent);
}
};
pub_info.setOnTouchListener(infoButtonListener);
this.orderFromPubListener = new OnInfoWindowElemTouchListener(order_from_pub) //btn_default_pressed_holo_light
{
#Override
protected void onClickConfirmed(View v, Marker marker) {
// Here we can perform some action triggered after clicking the button
for (int i = 0; i < pubArrayList.size(); i++) {
if (pubArrayList.get(i).getPubId().equals(pubLocation.getPubId())) {
mapMarkerOnClickListener.onMarkerClick(pubArrayList.get(i),v);
break;
}
}
}
};
order_from_pub.setOnTouchListener(orderFromPubListener);
itemNameTextView.setText(pubLocation.getTitle());
itemAddressTextView.setText(pubLocation.getSnippet());
markerInfoWindowlistner.setMarkerInfoWindow(clusterItemView,marker);
return clusterItemView;
}
}
Finally, got the solution to this issue
First set clustermanager to map as below:
getMap().setOnMarkerClickListener(mClusterManager);
On click of marker you just need to return true by adding one below condition and and pass zoom level to google map camera
mClusterManager.setOnClusterItemClickListener(new ClusterManager.OnClusterItemClickListener<PubLocation>() {
#Override
public boolean onClusterItemClick(PubLocation item) {
Log.i(TAG, "onClusterItemClick: ");
for (Marker marker : mClusterManager.getMarkerCollection().getMarkers()) {
if (marker.getPosition().latitude == item.getPosition().latitude &&
marker.getPosition().longitude == item.getPosition().longitude) {
marker.showInfoWindow();
}
}
CameraUpdate location = CameraUpdateFactory.newLatLngZoom(item.getPosition(), 10);
getMap().animateCamera(location, new GoogleMap.CancelableCallback() {
#Override
public void onFinish() {
getMap().animateCamera(CameraUpdateFactory.newLatLng(getMap().getProjection().fromScreenLocation(mappoint)));
}
#Override
public void onCancel() {
}
});
return true;
}
});
I have this code:
public void ConfigureServices(IServiceCollection services)
{
services
.AddMvc()
.AddRazorPagesOptions(options => {
options.Conventions.AddPageRoute("/Index", "Index.html");
options.Conventions.AddPageRoute("/rt", "rt.html");
});
}
Is it possible instead of writing each page, have one wildcat route like this?
options.Conventions.AddPageRoute("/*", "/{*.html}");
There is no built-in way to add such wildcard route. However you could achieve it with simple page route convention (implementation of IPageRouteModelConvention). Here is a working sample:
public class HtmlExtensionPageRouteModelConvention : IPageRouteModelConvention
{
public void Apply(PageRouteModel model)
{
var selectorCount = model.Selectors.Count;
for (var i = 0; i < selectorCount; ++i)
{
var attributeRouteModel = model.Selectors[i].AttributeRouteModel;
if (String.IsNullOrEmpty(attributeRouteModel.Template))
{
continue;
}
attributeRouteModel.SuppressLinkGeneration = true;
model.Selectors.Add(new SelectorModel
{
AttributeRouteModel = new AttributeRouteModel
{
Template = $"{attributeRouteModel.Template}.html",
}
});
}
}
}
Configuration:
public void ConfigureServices(IServiceCollection services)
{
services
.AddMvc()
.AddRazorPagesOptions(options => {
options.Conventions.Add(new HtmlExtensionPageRouteModelConvention());
});
}
Sample Project on GitHub
I am building an android GPS app with Codename one. I use com.codename1.googlemaps.MapContainer to create a Google map;
In my app is use tabs to create different "pages".
Code:
cnt = new MapContainer();
t.addTab("Tab3", cnt);
And for my current location I use:
try {
Coord position = new Coord(lat,lng);
cnt.clearMapLayers();
cnt.setCameraPosition(position);
cnt.addMarker(EncodedImage.create("/maps-pin.png"), position, "Hi marker", "Optional long description", new ActionListener() {
public void actionPerformed(ActionEvent evt) {
// stuff todo...
}
});
} catch(IOException err) {
// since the image is iin the jar this is unlikely
err.printStackTrace();
}
I like to add a wms layer to the Google Maps. Is this possible? I can't find in codenameone a command addLayer. If yes, do you have a code snippet how to do this?
If it is not possiple, can I use openlayers in my codename one app? Can you give me a code snippet to do this?
Edit
I started to create an native file to "catch"the addtileoverlay from google maps api. The layer I want to use is a xyz layer, so I think I can use a urltileprovider from the googlemap api
I made the native code for the tileoverlay but the tileoverlay doesn't appear. Is it because i didn't get a link with the mapcontainer.
I am little bit stuck. I tried to build from scratch with the googmaps example but the mapcompnent is not anymore used.
package com.Bellproductions.TalkingGps;
import com.google.android.gms.maps.model.UrlTileProvider;
import java.io.UnsupportedEncodingException;
import java.net.URL;
import com.google.android.gms.maps.GoogleMap;
import com.google.android.gms.maps.model.TileOverlayOptions;
import com.google.android.gms.maps.model.TileProvider;
import com.google.android.gms.maps.model.TileOverlay;
import com.codename1.impl.android.AndroidNativeUtil;
import java.util.Locale;
import java.net.MalformedURLException;
public class SeamarksImpl {
private GoogleMap mapInstance;
private TileOverlay m;
TileProvider provider;
public boolean isSupported() {
return true;
}
public long addTilelayer (){
final String URL_FORMAT = "http://t1.openseamap.org/seamark/{z}/{x}/{y}.png";
AndroidNativeUtil.getActivity().runOnUiThread(new Runnable() {
public void run() {
provider = new UrlTileProvider(256, 256) {
#Override
public synchronized URL getTileUrl(int x, int y, int zoom) {
try {
y = (1 << zoom) - y - 1;
return new URL(String.format(Locale.US, URL_FORMAT, zoom, x, y ));
} catch (MalformedURLException e) {
throw new RuntimeException();
}
}
TileOverlayOptions tileopt = new TileOverlayOptions().tileProvider(provider);
public void addlayer() {
m = mapInstance.addTileOverlay(tileopt);
}
};
}
});
long p = 1;
return p;}
}
My seamarks.java file has this code to bind with the native interface
import com.codename1.system.NativeInterface;
/**
*
* #author Hongerige Wolf
*/
public interface Seamarks extends NativeInterface {
public void addTilelayer ();
}
In the mainactivity java file i have the statements
public Seamarks seamark;
public void init(Object context) {
seamark = (Seamarks)NativeLookup.create(Seamarks.class);
}
public void start() {
seamark.addTilelayer();
}
Update
I created a new googlemaps.CN1lib. But the xyz layer is not showing on the googlemaps. I used native code tot use the Tileoverlay feature and tried to add tileoverlay in the same way as Markers.
In the InternalNativeMapsImpl file i changed
private void installListeners() {
/*
if (mapInstance == null) {
view = null;
System.out.println("Failed to get map instance, it seems google play services are not installed");
return;
}*/
view.getMapAsync(new OnMapReadyCallback() {
#Override
public void onMapReady(GoogleMap googleMap) {
mapInstance = googleMap;
TileProvider tileProvider;
tileProvider = new UrlTileProvider(256, 256) {
String tileLayer= "http://t1.openseamap.org/seamark/";
#Override
public synchronized URL getTileUrl(int x, int y, int zoom) {
// The moon tile coordinate system is reversed. This is not normal.
int reversedY = (1 << zoom) - y - 1;
//String s = String.format(Locale.US, tileLayer , zoom, x, y);
String s = tileLayer + "/" + zoom + "/" + x + "/" + reversedY + ".png";
URL url = null;
try {
url = new URL(s);
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
return url;
}
};
mMoonTiles = mapInstance.addTileOverlay(new TileOverlayOptions().tileProvider(tileProvider));
mapInstance.setOnMarkerClickListener(new GoogleMap.OnMarkerClickListener() {
public boolean onMarkerClick(Marker marker) {
Long val = listeners.get(marker);
if (val != null) {
MapContainer.fireMarkerEvent(InternalNativeMapsImpl.this.mapId, val.longValue());
return true;
}
return false;
}
});
mapInstance.setOnCameraChangeListener(new GoogleMap.OnCameraChangeListener() {
public void onCameraChange(CameraPosition position) {
MapContainer.fireMapChangeEvent(InternalNativeMapsImpl.this.mapId, (int) position.zoom, position.target.latitude, position.target.longitude);
}
});
mapInstance.setOnMapClickListener(new GoogleMap.OnMapClickListener() {
public void onMapClick(LatLng point) {
Point p = mapInstance.getProjection().toScreenLocation(point);
MapContainer.fireTapEventStatic(InternalNativeMapsImpl.this.mapId, p.x, p.y);
}
});
mapInstance.setOnMapLongClickListener(new GoogleMap.OnMapLongClickListener() {
public void onMapLongClick(LatLng point) {
Point p = mapInstance.getProjection().toScreenLocation(point);
MapContainer.fireLongPressEventStatic(InternalNativeMapsImpl.this.mapId, p.x, p.y);
}
});
mapInstance.setMyLocationEnabled(showMyLocation);
mapInstance.getUiSettings().setRotateGesturesEnabled(rotateGestureEnabled);
}
});
}
Secondly i added a addTilexyz method also in the same way as addMarkers
public long addTilexyz(final String Turl) {
uniqueIdCounter++;
final long key = uniqueIdCounter;
AndroidNativeUtil.getActivity().runOnUiThread(new Runnable() {
public void run() {
TileProvider tileProvider;
tileProvider = new UrlTileProvider(256, 256) {
// Tileurl = "http://t1.openseamap.org/seamark/";
#Override
public synchronized URL getTileUrl(int x, int y, int zoom) {
// The moon tile coordinate system is reversed. This is not normal.
int reversedY = (1 << zoom) - y - 1;
String s = String.format(Locale.US, Turl , zoom, x, reversedY);
URL url = null;
try {
url = new URL(s);
} catch (MalformedURLException e) {
throw new AssertionError(e);
}
return url;
}
};
mMoonTiles = mapInstance.addTileOverlay(new TileOverlayOptions().tileProvider(tileProvider));
}
});
return key;
}
In the InternalNativeMaps file i added te method
public long addTilexyz(String Turl);
And in the Mapcontainer file i added
public MapObject addTilexyz(String Turl) {
if(internalNative != null) {
MapObject o = new MapObject();
Long key = internalNative.addTilexyz(Turl);
o.mapKey = key;
markers.add(o);
return o;
} else {
}
MapObject o = new MapObject();
return o;
}
I am puzzeled what is wrong with the code. I wonder if the commands
Long key = internalNative.addTilexyz(Turl);
and
mMoonTiles = mapInstance.addTileOverlay(new TileOverlayOptions().tileProvider(tileProvider));
put the tileoverlay on the googlemap. Or is the tileurl wrong. http://t1.openseamap.org/seamark/z/x/y.png is correct.
We don't expose layers in the native maps at this time, you can fork the project and just add an API to support that to the native implementations.
I have added a KeyListener to JTable; but when I double click on a table cell, the KeyListener stops working.
public class MyKeyListener extends KeyAdapter {
#Override
public void keyTyped(KeyEvent ke) {
char i = ke.getKeyChar();
int ib = ((int) i);
if ((ib == 8)) {
if (jt1.isEditing()) {
jt1.getCellEditor().cancelCellEditing();
}
} else {
// my code to do
}
}
}
Don't use a KeyListener; use a Key Binding. More examples are cited here.
Alternatively, implement a custom table cell editor, as shown in the tutorial.
use MouseListener ...
jt1.addMouseListener(new MouseAdapter(){
public void mousePressed(MouseEvent evt)
{
if (evt.getClickCount() == 2)
{
jt1.getCellEditor().cancelCellEditing();
}
}
});
try the same for adding keyListener... in clickcount..
I'm trying to use the JTree and implement different drop downs for all the parent nodes and the children nodes.
Here's what I've done:
pmTree.addMouseListener(new java.awt.event.MouseAdapter() {
#Override
public void mouseClicked(java.awt.event.MouseEvent evt) {
try {
if(evt.getButton() == evt.BUTTON1) {
}
else if (evt.getButton() == evt.BUTTON3) {
TreePopup(evt);
//pmTree.updateUI();
}
}catch (Exception e) {}
}
});
and PopupCode:
public void TreePopup(java.awt.event.MouseEvent evt) {
DefaultMutableTreeNode node = (DefaultMutableTreeNode) pmTree.getLastSelectedPathComponent();
popup = new JPopupMenu();
popup.setInvoker(pmTree);
PopupHandler handler = new PopupHandler(pmTree, popup);
if(node.getLevel() == 1)
{
popup.add(getMenuItem("Parent Node", handler));
}
else if(node.getLevel() == 2)
{
popup.add(getMenuItem("Child", handler));
}
}
and PopUpHandler:
public class PopupHandler extends javax.swing.JFrame implements ActionListener {
JPopupMenu popup;
Point loc;
public PopupHandler(JTree tree, JPopupMenu popup) {
//this.tree = NewJFrame.pmTree;
this.popup = popup;
tree.addMouseListener(ma);
}
and also the
public void actionPerformed(java.awt.event.ActionEvent evt)
for the Child or Parent node being clicked.
However, when I run the program, I get the SAME right click popups for both the child and parent node.
Sorry for the huge chunk of code. I've been stuck with it for 2 days and yet not successful.
Thanks!
Don't go as low-level as a MouseListener, instead use the api around componentPopupMenu. Doing so, the general approach is dynamically configure the componentPopup in the getPopupLocation method, some simple example snippet:
JPopupMenu popup = new JPopupMenu();
final Action action = new AbstractAction("empty") {
#Override
public void actionPerformed(ActionEvent e) {
// TODO Auto-generated method stub
}
};
popup.add(action);
JTree tree = new JTree() {
/**
* #inherited <p>
*/
#Override
public Point getPopupLocation(MouseEvent e) {
if (e != null) {
// here do your custom config, like f.i add/remove menu items based on context
// this example simply changes the action name
TreePath path = getClosestPathForLocation(e.getX(), e.getY());
action.putValue(Action.NAME, String.valueOf(path.getLastPathComponent()));
return e.getPoint();
}
action.putValue(Action.NAME, "no mouse");
return null;
}
};
tree.setComponentPopupMenu(popup);
You check the selected node:
DefaultMutableTreeNode node = (DefaultMutableTreeNode)pmTree.getLastSelectedPathComponent();
to see if you have a "parent" or a "child" node. You should select the node at the mouse position first, otherwise it will not be the right node. Call
TreePath path = pmTree.getPathForLocation(evt.getX(), evt.getY());
if (path != null) {
pmTree.setSelectionPath(path);
} else {
return;
}
at the beginning of treePopup. (methods in Java should start with a lower case letter!)
Awesome. I was successfully able to put the setSelectionPath() call inside the override of getPopupLocaiton(). I had been trying to do it inside the ActionListener of my JMenuItem to no avail.
public Point getPopupLocation( MouseEvent e ) {
Point point = null;
if( e != null ) {
TreePath path = getClosestPathForLocation( e.getX(), e.getY() );
setSelectionPath( path );
point = e.getPoint();
}
return point;
}