The latitude and longitude of the location where Android gets

Android provides locationmanager to get location, use Locationlistener to listen for changes in location

Do some initialization work first:

/** latitude and longitude of current location*/public static string mLat = "";p ublic static string Mlon = "",/** Time Out For the GPS location update */private  Timer Mgpstimer = new timer (),/** TimerTask for Time out of the GPS location update */p Rivate  gpstimeouttask mgpstimeouttask = new Gpstimeouttask ();/** GPS location update Time out in Milliseconds*/privat E  Long mgpstimeout = 180000;//3 minutes<span style= "White-space:pre" ></span>public void Initilocationutil (context context, Locationobsever locationobsever) {mlocationobsever = Locationobsever;mcontext = Context;mlocationmanager = (Locationmanager) mcontext.getsystemservice (Context.location_service); Mlocationlistener = new Mylocationlistener ();}

<span style= "White-space:pre" ></span>public void Refreshgps (Boolean calledbycreate) { Mlocationmanager.removeupdates (Mlocationlistener); Boolean providerenable = True;boolean Showlocationservicedisablenotice = true;//See if there is a GPS permission if (mlocationmanager.isproviderenabled (locationmanager.gps_ PROVIDER)) {//start positioning Mlocationlistener as position listener mlocationmanager.requestlocationupdates (Locationmanager.gps_provider , 0, 0, mlocationlistener); showlocationservicedisablenotice = False;//start Time Out timer Mgpstimer = new timer (); Mgpstimeouttask = new Gpstimeouttask (); Mgpstimer.schedule (Mgpstimeouttask, mgpstimeout);} if (mlocationmanager.isproviderenabled (Locationmanager.network_provider)) { Mlocationmanager.requestlocationupdates (locationmanager.network_provider, 0, 0, Mlocationlistener); Showlocationservicedisablenotice = False;providerenable = true;} if (providerenable) {if (mlocationobsever! = null) {Mlocationobsever.notifychange (refreshgps_completed, NULL);}} Else{if (Mlocationobsever! = null) {MLOCATIONOBSEVer.notifychange (Refreshgps_noprovider, NULL);}} if (showlocationservicedisablenotice) {Showlocationservicedisableddialog ();}}

Listener:

Private class Mylocationlistener implements Locationlistener{private Boolean mlocationreceived = false; @Overridepublic void onlocationchanged (location location) {if (location! = null &&!mlocationreceived) {mlocationreceived = true; String lon = string.valueof (Location.getlongitude ()); String lat = string.valueof (Location.getlatitude ()); if (mlocationobsever! = null) {Mlocationobsever.notifychange ( default_location_completed, lat+ "," +lon);}} else if (location = = null) {if (mlocationobsever! = null) {Mlocationobsever.notifychange (getlocation_failed, NULL);}}} @Overridepublic void Onproviderdisabled (String provider) {} @Overridepublic void onproviderenabled (string provider) {}@  overridepublic void Onstatuschanged (String provider, int status,bundle extras) {//TODO auto-generated method stub//if GPS Provider is not accessible, try network Providerif (provider.equals (locationmanager.gps_provider) && Status! = Lo cationprovider.available) {if (mlocationmanager.isproviderenabled (locationmanageR.network_provider)) {mlocationmanager.requestlocationupdates (locationmanager.network_provider, 0, 0, Mlocationlistener);} Else{mlocationmanager.removeupdates (Mlocationlistener); if (mlocationobsever! = null) { Mlocationobsever.notifychange (status_changed, NULL);}}}}

It takes a timer,3 minute to pick up the location again:

Private Handler Mgpstimerhandler = new Handler () {public void Handlemessage (Message msg) {if (Mlocationmanager = = null) {R Eturn;} if (mlocationmanager.isproviderenabled (Locationmanager.network_provider)) {System.out.println ("=====use NETWORK to Get location "); Mlocationmanager.requestlocationupdates (Locationmanager.network_provider, 0, 0,mlocationlistener);} else {mlocationmanager.removeupdates (mlocationlistener);//Mlocationobsever.notifychange ( Setaddlocationbuttonstate_1_setlocationdes_1,null); if (mlocationobsever! = null) {Mlocationobsever.notifychange ( Gpstimeout, NULL);}}};

Switch off the GPS when the interface exits.

/** * Cancel operations of refreshing GPS     */public  void Cancelrefreshgps () {if (Mlocationmanager! = null) { Mlocationmanager.removeupdates (Mlocationlistener);} if (mlocationobsever! = null) {Mlocationobsever.notifychange (cancelgps_completed, NULL);}} Public  void Destroy () {if (Mlocationmanager! = null) {     mlocationmanager.removeupdates (mlocationlistener);} if (Mgpstimer! = null) {Mgpstimer.cancel ();} Cancelrefreshgps (); mcontext = Null;mlocationobsever = null; Mlocationbuildinglist = null; System.GC ();}

Is

When you click on map, assume Google Map, you must use the SDK with the Google API, and then add <uses-library android:name= in Application " Com.google.android.maps "/>

Then the XML is:

<?xml version= "1.0" encoding= "Utf-8"? ><linearlayout xmlns:android= "http://schemas.android.com/apk/res/ Android "    android:layout_width=" fill_parent "    android:layout_height=" fill_parent "    android:background = "#FFFFFF"    android:gravity= "center_horizontal"    android:orientation= "vertical" >    <include layout= "@layout/title_list"/>    <view        android:id= "@+id/line" android:layout_width= "Fill_parent        "        android:layout_height=" 2dip "        android:layout_below=" @id/title "        android:background=" @drawable/RC _list_divider "/>    <com.google.android.maps.mapview        android:id=" @+id/mapview "        android: Layout_width= "Fill_parent"        android:layout_height= "fill_parent"        android:apikey= "06nx-rzpy8wu16_ GJO8ZBTRYYY-JUNNXNARRXFG "/></linearlayout>

The code is:

@Overrideprotected void OnCreate (Bundle savedinstancestate) {//TODO auto-generated method Stubsuper.oncreate ( Savedinstancestate); requestwindowfeature (Window.feature_no_title); Setcontentview (R.LAYOUT.AROUND_MAP); Mtextview = (TextView) Findviewbyid (R.id.title_text); Mtextview.settext ("map"); Intent Intent = Getintent (); mlatitude = Intent.getdoubleextra ("lat", 0.0); mlongitude = Intent.getdoubleextra ("lon", 0.0); Mmapview = (Mapview) Findviewbyid (      R.id.mapview);      Mmapview.setclickable (TRUE);    Mmapview.setbuiltinzoomcontrols (True); Mmapview.setsatellite (true);      Mapcontroller = Mmapview.getcontroller ();//GeoPoint = new GeoPoint ((int) (Mlatitude * 1E6), (int) (Mlongitude * 1E6));    Geopoint=new geoPoint ((int) (30.659259*1000000), (int) (104.065762*1000000));     Mmapview.displayzoomcontrols (TRUE); Sets the initial size of the map. The range is between 1 and 21. 1: Minimum size, 21: Maximum size mapcontroller.setzoom (16);//////Create Myoverlay object for drawing graphics on map Myoverlay myoverlay = new Myoverlay (      ); Mmapview.getoverlays (). Add (myOverlay);  Mapcontroller.animateto (GeoPoint); } @Overrideprotected Boolean isroutedisplayed () {return false;}  Class Myoverlay extends Overlay {@Override public boolean draw (canvas canvas, Mapview Mapview, Boolean shadow,                  Long when) {Paint paint = new paint ();          On-screen text font color paint.setcolor (color.red);                    Point screenpoint = new Point ();          Mapview.getprojection (). Topixels (GeoPoint, screenpoint);          Bitmap bmp = Bitmapfactory.decoderesource (Getresources (), r.drawable.location);          Draw images on the map canvas.drawbitmap (BMP, Screenpoint.x, SCREENPOINT.Y, paint);          Draw the text on the map//Canvas.drawtext ("Mobile Bus", ten, +, paint);      Return Super.draw (canvas, Mapview, Shadow, when);  }  }

The code can be downloaded in http://download.csdn.net/detail/baidu_nod/7622677

The latitude and longitude of the location where Android gets