context sensitive help - Page 280

location getting some times and sometimes not

- by Chaitanya Sai

// in this i'm getting location sometimes and sometimes location is not retrieving i had turned gps and gprs on and added permissions required . i'm bot getting what actually the problem is package com.example.addr; import java.util.List; import java.util.Locale; import android.location.Address; import android.location.Criteria; import android.location.Geocoder; import android.location.Location; import android.location.LocationListener; import android.location.LocationManager; import android.os.Bundle; import android.app.Activity; import android.content.Context; import android.view.Menu; import android.widget.TextView; public class MainActivity extends Activity { @Override public void onCreate(Bundle savedInstanceState) { super.onCreate(savedInstanceState); setContentView(R.layout.activity_main); LocationManager locationManager; String context = Context.LOCATION_SERVICE; locationManager = (LocationManager)getSystemService(context); Criteria crta = new Criteria(); crta.setAccuracy(Criteria.ACCURACY_FINE); crta.setAltitudeRequired(false); crta.setBearingRequired(false); crta.setCostAllowed(true); crta.setPowerRequirement(Criteria.POWER_LOW); String provider = locationManager.getBestProvider(crta, true); // String provider = LocationManager.GPS_PROVIDER; Location location = locationManager.getLastKnownLocation(provider); updateWithNewLocation(location); locationManager.requestLocationUpdates(provider, 2000, 10, locationListener); } private final LocationListener locationListener = new LocationListener() { @Override public void onLocationChanged(Location location) { updateWithNewLocation(location); } @Override public void onProviderDisabled(String provider) { updateWithNewLocation(null); } @Override public void onProviderEnabled(String provider) { } @Override public void onStatusChanged(String provider, int status, Bundle extras) { } }; private void updateWithNewLocation(Location location) { String latLong; TextView myLocation; myLocation = (TextView) findViewById(R.id.myLocation); String addressString = "Sorry No Address Found"; if(location!=null) { double lat = location.getLatitude(); double lon = location.getLongitude(); latLong = "Lat:" + lat + "\nLong:" + lon; double lattitude = location.getLatitude(); double longitude = location.getLongitude(); Geocoder gc = new Geocoder(this,Locale.getDefault()); try { List<Address> addresses= gc.getFromLocation(lattitude, longitude, 1); StringBuilder sb = new StringBuilder(); if(addresses.size()>0) { Address address=addresses.get(0); for(int i=0;i<address.getMaxAddressLineIndex();i++) sb.append(address.getAddressLine(i)).append("\n"); sb.append(address.getLocality()).append("\n"); sb.append(address.getPostalCode()).append("\n"); sb.append(address.getCountryName()); } addressString = sb.toString(); } catch (Exception e) { } } else { latLong = " NO Location Found "; } myLocation.setText("Current Position is :\n"+ latLong + "\n"+ addressString ); } @Override public boolean onCreateOptionsMenu(Menu menu) { getMenuInflater().inflate(R.menu.activity_main, menu); return true; } }

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