android - gps app reverse geocoding error -
im trying change code reverse geocoding well. coordinates work fine. im gettin error: location cannot resolved variable. error @ line of code:
list<address> addresses = geocoder.getfromlocation(location.getlatitude, location.getlongitude, 1); my full code is:
package gps.attempt; import java.io.ioexception; import java.util.list; import java.util.locale; import android.app.activity; import android.content.intent; import android.location.address; import android.location.location; import android.location.geocoder; import android.location.locationlistener; import android.location.locationmanager; import android.location.locationprovider; import android.os.bundle; import android.util.log; import android.widget.textview; import android.widget.toast; public class gpsattemptactivity extends activity implements locationlistener { /* class implements locationlistener, listens both * changes in location of device , changes in status * of gps system. * */ static final string tag = "main"; // log textview txtinfo; locationmanager lm; stringbuilder sb; int nooffixes = 0; /** called when activity first created. */ @override public void oncreate(bundle savedinstancestate) { super.oncreate(savedinstancestate); setcontentview(r.layout.main); /* textview display gps data */ txtinfo = (textview) findviewbyid(r.id.textview1); textview myaddress = (textview)findviewbyid(r.id.myaddress); /* location manager vital part allows access * location , gps status services */ lm = (locationmanager) getsystemservice(location_service); geocoder geocoder = new geocoder(this, locale.english); try { list<address> addresses = geocoder.getfromlocation(location.getlatitude, location.getlongitude, 1); if(addresses != null) { address returnedaddress = addresses.get(0); stringbuilder strreturnedaddress = new stringbuilder("address:\n"); for(int i=0; i<returnedaddress.getmaxaddresslineindex(); i++) { strreturnedaddress.append(returnedaddress.getaddressline(i)).append("\n"); } myaddress.settext(strreturnedaddress.tostring()); } else{ myaddress.settext("no address returned!"); } } catch (ioexception e) { // todo auto-generated catch block e.printstacktrace(); myaddress.settext("cannot address!"); } } @override protected void onresume() { /* * onresume is called after onstart, if app hasn't been * paused * * add location listener , request updates every 1000ms or 10m */ lm.requestlocationupdates(locationmanager.gps_provider, 1000, 10f, this); super.onresume(); } @override protected void onpause() { /* gps, turns out, consumes battery crazy */ lm.removeupdates(this); super.onpause(); } @override public void onlocationchanged(location location) { log.v(tag, "location changed"); sb = new stringbuilder(512); nooffixes++; /* display of data in textview */ sb.append("no. of fixes: "); sb.append(nooffixes); sb.append('\n'); sb.append('\n'); sb.append("longitude: "); sb.append(location.getlongitude()); sb.append('\n'); sb.append("latitude: "); sb.append(location.getlatitude()); sb.append('\n'); sb.append("accuracy: "); sb.append(location.getaccuracy()); sb.append('\n'); txtinfo.settext(sb.tostring()); } @override public void onproviderdisabled(string provider) { /* called if/when gps disabled in settings */ log.v(tag, "disabled"); /* bring gps settings */ intent intent = new intent( android.provider.settings.action_location_source_settings); startactivity(intent); } @override public void onproviderenabled(string provider) { log.v(tag, "enabled"); toast.maketext(this, "gps enabled", toast.length_short).show(); } @override public void onstatuschanged(string provider, int status, bundle extras) { /* called when gps status alters */ switch (status) { case locationprovider.out_of_service: log.v(tag, "status changed: out of service"); toast.maketext(this, "status changed: out of service", toast.length_short).show(); break; case locationprovider.temporarily_unavailable: log.v(tag, "status changed: temporarily unavailable"); toast.maketext(this, "status changed: temporarily unavailable", toast.length_short).show(); break; case locationprovider.available: log.v(tag, "status changed: available"); toast.maketext(this, "status changed: available", toast.length_short).show(); break; } } @override protected void onstop() { /* may finish since saving state not important toy app */ finish(); super.onstop(); } } manifest:
<?xml version="1.0" encoding="utf-8"?> <manifest xmlns:android="http://schemas.android.com/apk/res/android" package="gps.attempt" android:versioncode="1" android:versionname="1.0" > <uses-sdk android:minsdkversion="8" /> <uses-permission android:name="android.permission.internet"></uses-permission> <application android:icon="@drawable/ic_launcher" android:label="@string/app_name" > <activity android:name=".gpsattemptactivity" android:label="@string/app_name" > <intent-filter> <action android:name="android.intent.action.main" /> <category android:name="android.intent.category.launcher" /> </intent-filter> </activity> </application> <uses-permission android:name="android.permission.access_fine_location" /> <uses-permission android:name="android.permission.access_mock_location" /> <uses-permission android:name="android.permission.access_coarse_location" /> <uses-permission android:name="android.permission.access_location_extra_commands" /> <uses-permission android:name="android.permission.control_location_updates" /> i grateful if me
have @ answer here it's similar question using different sensor.
you making (understandable) mistake of assuming can location instantly on phone. can't unfortunately. have start service , wait come when has location fix.
if want instant location can see if call getlastknowlocation() non-null (but may inaccurate) , use that. otherwise need put geocoding logic in onlocationchanged() method , wait called.
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