I am trying to get the current location and display it on a OSMdroid map inside an Android application. But I get no location and a Runnable that is supposed to be called the first time the location is found is never called.
I have tried different providers, permissions are all enabled and GPS location, too.
private void getCurrentLocation() {
GpsMyLocationProvider provider = new GpsMyLocationProvider(this);
provider.addLocationSource(LocationManager.GPS_PROVIDER);
provider.addLocationSource(LocationManager.NETWORK_PROVIDER);
myLocationOverlay = new MyLocationNewOverlay(provider, mMapView);
myLocationOverlay.enableMyLocation();
myLocationOverlay.setDrawAccuracyEnabled(true);
myLocationOverlay.runOnFirstFix(new Runnable() {
public void run() {
// never reaches this point
Timber.i("runOnFirstFix");
}
});
mMapView.getOverlays().add(myLocationOverlay);
if (myLocationOverlay.getMyLocation() == null) {
// this shows up
Timber.i("Location not retrieved");
}
}
I understand that the location might not be found as soon as the overlay is added, but I don't understand why the Runnable doesn't work
Related
I'm working on a wpf app. visual studio 2022
I have the following code in a file for testing and have set a button click event to run WriteWorkOrderList(). nothing gets passed to it: there are no other methods or anything:
private List<Models.WorkOrder> _workOrderList = new List<Models.WorkOrder>();
public List<Models.WorkOrder> WorkOrderList
{
get
{
return _workOrderList;
}
set
{
if (_workOrderList != value)
{
_workOrderList = value;
NotifyPropertyChanged();
}
}
}
private Models.WorkOrder _currentWorkOrder = new Models.WorkOrder();
public Models.WorkOrder CurrentWorkorder
{
get
{
return _currentWorkOrder;
}
set
{
if (_currentWorkOrder != value)
{
_currentWorkOrder = value;
NotifyPropertyChanged();
}
}
}
public void WriteWorkOrderList()
{
CurrentWorkorder.Customer.Name = "Billy";
WorkOrderList.Add(CurrentWorkorder);
}
I placed a Breakpoint at the beginning of the WriteWorkOrderList()
method
I'll let it continue the first time. and get one record in
WorkOrderList with Customer.Name=Billy.
the second time I click the
button and get to the breakpoint I will change the
CurrentWorkOrder.Customer.Name= "joe".
I'll Step through the code
as soon as the line CurrentWorkorder.Customer.Name = "Billy"; gets processed the record in WorkOrderList updates to the new name
I can't figure out how they are connecting to each other. All I'm trying to do is add a new WorkOrder to the Workorderlist but I haven't Even gotten that far
I'm trying to use MBtiles offline with osmdroid,
I took code sample from here https://github.com/osmdroid/osmdroid/blob/master/OpenStreetMapViewer/src/main/java/org/osmdroid/samplefragments/tileproviders/SampleOfflineOnly.java
But always empty map shown, is there problem with my code?
my code is:
public class OSMDroid extends AppCompatActivity {
private MapView mapView;
#Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_osmdroid);
mapView = (MapView) findViewById(R.id.map);
String name = "map.mbtiles";
File f = new File(Environment.getExternalStorageDirectory() + "/osmdroid", name);
if (f.exists()) {
try {
//ok found a file we support and have a driver for the format, for this demo, we'll just use the first one
//create the offline tile provider, it will only do offline file archives
//again using the first file
OfflineTileProvider tileProvider = new OfflineTileProvider(new SimpleRegisterReceiver(this),
new File[]{f});
//tell osmdroid to use that provider instead of the default rig which is (asserts, cache, files/archives, online
mapView.setTileProvider(tileProvider);
//this bit enables us to find out what tiles sources are available. note, that this action may take some time to run
//and should be ran asynchronously. we've put it inline for simplicity
String source = "";
IArchiveFile[] archives = tileProvider.getArchives();
if (archives.length > 0) {
//cheating a bit here, get the first archive file and ask for the tile sources names it contains
Set<String> tileSources = archives[0].getTileSources();
//presumably, this would be a great place to tell your users which tiles sources are available
if (!tileSources.isEmpty()) {
//ok good, we found at least one tile source, create a basic file based tile source using that name
//and set it. If we don't set it, osmdroid will attempt to use the default source, which is "MAPNIK",
//which probably won't match your offline tile source, unless it's MAPNIK
source = tileSources.iterator().next();
mapView.setTileSource(FileBasedTileSource.getSource(source));
} else {
mapView.setTileSource(TileSourceFactory.DEFAULT_TILE_SOURCE);
}
} else {
mapView.setTileSource(TileSourceFactory.DEFAULT_TILE_SOURCE);
}
mapView.setUseDataConnection(false);
mapView.setBuiltInZoomControls(true);
IMapController mapController = mapView.getController();
mapController.setZoom(10);
GeoPoint startPt = new GeoPoint(61.5797,51.5997);
mapController.setCenter(startPt);
mapView.invalidate();
return;
} catch (Exception ex) {
ex.printStackTrace();
}
}
}
}
MBTilesFileArchive getTileSources always returns empty string, here is implementation:
public Set<String> getTileSources(){
//the MBTiles spec doesn't store source information in it, so we can't return anything
return Collections.EMPTY_SET;
}
In order to make a offline map you should add tiles first. You can use Maperitive app to make your map tiles(zip is easier to manage than sql). Name the zip MapquestOSM. After you have done it create a folder "osmdroid" in phones memory(Directly into the internal memory or sd card) and add your map tiles in it.
Parameters of the XYTileSource changes related to the map tiles you have created. This code handles everything about map tiles itself. I hope it helps you
mapView.setUseDataConnection(false);
mapView.setTileSource(new XYTileSource("MapquestOSM", 2, 15, 256, ".png", new String[]{}));
I have a Modal class, when this modal is opened, it shows a panel asking the user if the user wants to proceed with the operation. If the user selects Yes the request is sent to the DB, which takes some time, during this time the first panel should be replaced by the second (which displays a spinner). This indeed happens if we do not use the third panel. Although I want to replace the second panel by the third panel in order to inform the user if the operation was successful or not (which depends of the message object,if it is null or have an error message).
So when I use addNewPanel(panel3, target) I never see panel2. I put a thread.sleep(5000) instruction after addNewPanel(panel2, target) and even so, this panel didn't appeared, I only get the initial and panel3 in the end.
If I do not use panel3 I see panel2.
Does anyone have an idea why is this happening?
Below I have the code of the Modal class
public class DetailsModal2 extends Modal<IModel<UserDomain>>{
#SpringBean
private IService service;
private BootstrapAjaxLink<String> noButton;
private ResponseMessage message;
private ProcessingPanel panel2;
private AlertPanel panel3;
private Panel replacedPanel;
public DetailsModal2(String id, IModel<UserDomain> model){
super(id);
replacedPanel = new AreYouSure("replacedPanel");
replacedPanel.setOutputMarkupId(true);
add(replacedPanel);
panel2 = new ProcessingPanel("replacedPanel");
panel3 = new AlertPanel("replacedPanel");
addButton(new BootstrapAjaxLink<String>("button", null, Buttons.Type.Warning, new ResourceModel("details")){
private static final long serialVersionUID = 1L;
#Override
public void onClick(AjaxRequestTarget target) {
// TODO Auto-generated method stub
//I was expecting to see this panel
addNewPanel(panel2,target);
// this puts this button invisible
this.setVisible(false);
target.add(this);
//this changes the label of the No button to Close
noButton.setLabel(Model.of("Close"));
target.add(noButton);
if(!service.retrieveData())
{
message = service.addUser("X");
if(message == null){
panel3.updateClassAndText(true);
addNewPanel(panel3,target);
}
else {
panel3.updateClassAndText(false);
addNewPanel(panel3,target);
System.out.println(""+ message.getError());
}
}//close if
else if(service.retrieveData())
{
message = service.removeUser("X");
if(message == null){
panel3.updateClassAndText(true);
addNewPanel(panel3,target);
}
else{
panel3.updateClassAndText(false);
addNewPanel(panel3,target);
System.out.println(""+ message.getError());
}
}
else{
System.out.println("It was not possible to access the db");
}
}
}
});
noButton = new BootstrapAjaxLink<String>("button", null, Buttons.Type.Primary){
private static final long serialVersionUID = 1L;
#Override
public void onClick(AjaxRequestTarget target) {
close(target);
}
}.setLabel(Model.of("No"));
addButton(noButton);
}
public void addNewPanel(Panel addpanel, AjaxRequestTarget target ){
Panel newPanel = null;
newPanel = addpanel;
newPanel.setOutputMarkupId(true);
replacedPanel.replaceWith(newPanel);
target.add(newPanel);
}
}//close class
HTML
<wicket:extend>
<div><span wicket:id="replacedPanel"> </span></div>
</wicket:extend>
Wicket atmosphere is deprecated from wicket 8 and will not be supported anymore, so do not use it ..
I have an app with contextual commands. After triggered a contextual command, it will make a HTTP request with a link and post the result on the card, something like, "Completed!". I want this card to be closed by itself after one second so that the user need not to tap to close it. Once the result card is closed, it will go back to contextual command lists with "Ok, glass" at footer and ready for next command.
May i know how to do that?
private class HTTPRequest extends AsyncTask<Void, Void, Void> {
#Override
protected Void doInBackground(Void... arg0) {
try {
if (mWhat.equalsIgnoreCase("GET")) {
// get json via YouTube API
URL url = new URL("http://example.com");
mUrlConnection = (HttpURLConnection)
url.openConnection();
InputStream in = new BufferedInputStream(
mUrlConnection.getInputStream());
int ch;
StringBuffer b = new StringBuffer();
while ((ch = in.read()) != -1) {
b.append((char) ch);
}
mResult = new String(b);
}
} catch (Exception e) {}
return null;
}
#Override
protected void onPostExecute(Void result) {
super.onPostExecute(result);
mTvInfo.setText(mResult);
}
You can use an Android Dialog for this:
Use CardBuilder to create the "Completed" card using the MENU layout.
Create a new instance of Dialog and set its content view to be the view returned by CardBuilder.getView.
Show the dialog.
Use Handler.postDelayed (or some similar mechanism) to automatically dismiss the dialog after the desired amount of time has passed.
I've faced with the well-known problem in LWUIT. My list component with the checkbox renderer scrolls very slow. If to test my application on emulator it runs quite smoothly (nevertheless I see CPU utilization splashes up to 60% during scroll action), but if to run it on mobile phone it takes a couple of seconds between focus movements.
There's a code of renderer:
public class CheckBoxMultiselectRenderer extends CheckBox implements ListCellRenderer {
public CheckBoxMultiselectRenderer() {
super("");
}
//override
public void repaint() {
}
public Component getListCellRendererComponent(List list, Object value,
int index,boolean isSelected) {
Location loc = (Location)value;
setText(loc.getLocationName());
setFocus(isSelected);
setSelected(loc.isSelected());
return this;
}
public Component getListFocusComponent(List list) {
setText("");
setFocus(true);
getStyle().setBgTransparency(Consts.BG_TRANSPARENCY);
return this;
}
}
that's the code of my form containing the list:
protected void createMarkup() {
Form form = getForm();
form.setLayout(new BorderLayout());
form.setScrollable(false);
Label title = new Label("Choose location zone:");
title.getStyle().setMargin(5, 5, 0, 0);
title.getStyle().setBgTransparency(Consts.BG_TRANSPARENCY);
title.setAlignment(Component.CENTER);
form.addComponent(BorderLayout.NORTH, title);
list = new List(StateKeeper.getLocationsAsList());
list.setFixedSelection(List.FIXED_NONE_CYCLIC);
// list.setSmoothScrolling(true);
list.getStyle().setBgTransparency(0);
list.setListCellRenderer(new CheckBoxMultiselectRenderer());
list.addActionListener(new ActionListener(){
public void actionPerformed(ActionEvent ae){
// List l = (List)ae.getSource();
// l.requestFocus();
// l.setHandlesInput(true);
Location selItem = (Location)list.getSelectedItem();
selItem.setSelected(!selItem.isSelected());
}
});
form.addComponent(BorderLayout.CENTER, list);
}
I would be very thankful for any help!
We must be so carefull building lwuit List. If we have made something wrong they can work worse than expected. I recommend you to take a look on this
LWUIT Blog ListRender
You can also rewrite your paint method. You list's speed will be increased.