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POPassing GPS LonLat from Android GPS to WebPage (javascript)
 

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    <p>I have the following code but the lon/lat seems to be returning null;</p> <pre><code>package com.domain.www; import android.app.Activity; import android.content.Context; import android.content.pm.ActivityInfo; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.location.Criteria; import android.os.Bundle; import android.webkit.WebView; import android.webkit.WebViewClient; public class WebMapActivity extends Activity implements LocationListener { private static final String MAP_URL = "http://www.yahoo.com/"; private WebView webView; private Location mostRecentLocation; @Override /** Called when the activity is first created. */ public void onCreate(Bundle savedInstanceState) { try { super.onCreate(savedInstanceState); setContentView(R.layout.main); getLocation(); setupWebView(); this.setRequestedOrientation(ActivityInfo.SCREEN_ORIENTATION_PORTRAIT); } catch (Exception e) { e.printStackTrace(); } } /** Sets up the WebView object and loads the URL of the page **/ private void setupWebView() { /* final String centerURL = "javascript:centerAt(" + mostRecentLocation.getLatitude() + "," + mostRecentLocation.getLongitude() + ")"; */ webView = (WebView) findViewById(R.id.webview); webView.getSettings().setJavaScriptEnabled(true); webView.setWebViewClient(new WebViewClient() { @Override public void onPageFinished(WebView view, String url) { String jsCode = "javascript:alert('" + getMostRecentLocation("lon") + "')"; webView.loadUrl(jsCode.toString()); } }); webView.loadUrl(MAP_URL); } /** * The Location Manager manages location providers. This code searches for * the best provider of data (GPS, WiFi/cell phone tower lookup, some other * mechanism) and finds the last known location. **/ private void getLocation() { LocationManager locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE); Criteria criteria = new Criteria(); criteria.setAccuracy(Criteria.ACCURACY_FINE); String provider = locationManager.getBestProvider(criteria, true); // In order to make sure the device is getting location, request // updates. locationManager.requestLocationUpdates(provider, 1, 0, // this); //locationManager.requestLocationUpdates(provider, 1, 0, this); setMostRecentLocation(locationManager.getLastKnownLocation(provider)); } /** Sets the mostRecentLocation object to the current location of the device **/ @Override public void onLocationChanged(Location location) { setMostRecentLocation(location); } /** * The following methods are only necessary because WebMapActivity * implements LocationListener **/ @Override public void onProviderDisabled(String provider) { } @Override public void onProviderEnabled(String provider) { } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } /** * @param mostRecentLocation the mostRecentLocation to set */ public void setMostRecentLocation(Location mostRecentLocation) { this.mostRecentLocation = mostRecentLocation; } /** * @return the mostRecentLocation */ public double getMostRecentLocation(String lonLat) { double gValue = 0.00; try { Location xx = this.mostRecentLocation; //Used as a breakpoint if(lonLat == "lat") gValue = this.mostRecentLocation.getLatitude(); if(lonLat == "lon") gValue = this.mostRecentLocation.getLongitude(); } catch (Exception e) { e.printStackTrace(); } return gValue; } } </code></pre> <p>Ignore the URL bit that would be a page with a google map on it; but for debugging purposes I'd prefer it to just spit out an alert with the values in it.</p> <p>Any ideas whats wrong? Target Emulators (Google API 1.5 API(3))</p> <p>Thanks</p>
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