gps

问题 I created a class GPSController . The onReceive is called every Minute. I want to get the current GPS Data with the GPSListener in my AsyncTask . But the onLocationChanged Method is never called. :-/ Here is my Class: public class GPSController extends SensorTimeController { // The minimum distance to change Updates in meters private static final long MIN_DISTANCE_CHANGE_FOR_UPDATES = 0; // The minimum time between updates in milliseconds private static final long MIN_TIME_BW_UPDATES = 2;

问题 I'm having trouble with the locationmanager in Android. I have the following class: package com.flyer; import android.app.Activity; import android.content.Context; import android.content.Intent; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.widget.Toast; import org.apache.http.HttpEntity; import org.apache.http.HttpResponse; import org.apache.http.NameValuePair; import org.apache

问题 I'm not sure why my for-loop for adding circles to a leaflet layer isn't working. Here's my code: var linkDistance = $('#linkDistance').val(); var nodesCount = 8; var bandwidth = "10 GB/s"; // gps coords for 505 Marquette var rootLongitude = 35.088878; var rootLatitude = -106.65262; var mymap = L.map('mapid').setView([rootLongitude, rootLatitude], 13); L.tileLayer('https://api.tiles.mapbox.com/v4/{id}/{z}/{x}/{y}.png?access_token=pk

问题 I am newbie in Android, I am trying to retrieve the GPS data in my application. I am using following code LocationManager lm = (LocationManager) getSystemService(Context.LOCATION_SERVICE); if (!lm.isProviderEnabled(LocationManager.GPS_PROVIDER)){ lm.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000L, 500.0f, this); } And my class I have overriden the following method public void onLocationChanged(Location location) { String currentLocation = "The location is changed to Lat: " +

问题 build a algorithm to find a polygon build by four sets of lat long.. and passing current lat long to find whether a set of lat long belong to that polygon or not. But the the current latiitude and longitude is not accurate . in android using GPS and network system to tracking current latitude and longitude. public void find current_lat_long(){ com.example.gps.AppLocationService appLocationService = new com.example.gps.AppLocationService( Map_Location.this); Location gpsLocation =

问题 The Below Code always Returns Zero....as Latitude and Longitude... I am Using a GPSTrack Class To Get the current location of and then Show that Location into the Maps..but GPS Tracker Always Return ZERO.... Below is My Code >>> MAP ACTIVITY.JAVA public void onMapReady(GoogleMap googleMap) { mMap = googleMap; gps = new GPSTracker(MapsActivity.this); // check if GPS enabled if(gps.canGetLocation()) { double latitude = gps.getLatitude(); double longitude = gps.getLongitude(); LatLng sydney =

问题 is it possible to plot graphs of data that are collected from a richTextBox? For example I have following text in richTextBox: $GPRMC,152908.00,A,5307.0794359,N,02308.8918827,E,0.049,188.6,280612,0.0,E,D*3A $GPRMC,152909.00,A,5307.0794307,N,02308.8918792,E,0.081,193.3,280612,0.0,E,D*3A $GPRMC,152910.00,A,5307.0794343,N,02308.8918811,E,0.034,42.9,280612,0.0,E,D*0F $GPRMC,152911.00,A,5307.0794410,N,02308.8918827,E,0.099,1.3,280612,0.0,E,D*30 $GPRMC,152912.00,A,5307.0794461,N,02308.8918808,E,0

问题 My app has two activities that need GPS, so I tried to offload it to a separate class that either activity could use. I found an answer here that looked easy enough Android - Best way to implement LocationListener across multiple activities But of course, it's not working for me. I was wondering if anyone can see the issue. I used pretty much exactly the same code, but I got rid of the gps settings dialog. Here's my GPS class package fieldlayout.skipmorrow.com.fieldlayout; import android.app

问题 I am doing a BlackBerry app targeted at 5.0 and upwards. I have a class that extends Thread and implements LocationListener. I manage to get gps updates on CellSite as well as the other modes like Assisted and Unassisted. What I am really trying todo is use Cellsite while the others are not available and then switch to them once they become available. The correct route seemed through "providerStateChanged" but this never fires. Any Ideas? 回答1: Using BlackBerryLocationProvider and

问题 I guess the answer has already been posted, but I am a lazzy boy :p . Seriously I am working on an iPhone Application which have to blit a map and use the current user gps location to locate the user on the map. The problem is that with iPhone (v1), and all iPod version there is no gps device, so is it possible to get the current gps location of the user (using google map api, with internet ... or something else) ? I would like to know the current gps user location without user gps device