[英]Android get location from cell tower
您好,我想從手機塔(Sim卡)獲取位置,而無需網絡。 我使用了下面提到的代碼,當網絡可用時,它僅給我最后一個位置。
我的要求是在沒有WiFi或互聯網的情況下獲取位置。 有可能嗎
package com.example.gpscelltower;
import java.text.DateFormat;
import java.text.SimpleDateFormat;
import java.util.Calendar;
import java.util.Timer;
import java.util.TimerTask;
import android.app.Activity;
import android.content.Context;
import android.location.Location;
import android.location.LocationListener;
import android.location.LocationManager;
import android.os.Bundle;
import android.util.Log;
import android.widget.Toast;
public class CellTowerActivity1 extends Activity {
private static final String TAG = "Cell";
private static LocationManager locationManager;
private static LocationListener locationListener;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_cell_tower);
locationManager=(LocationManager)getSystemService(Context.LOCATION_SERVICE);
String providerName=LocationManager.NETWORK_PROVIDER;
Location location=locationManager.getLastKnownLocation(providerName);
updateWithLocation(location);
//Cell-ID and WiFi location updates.
locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER, 1000, 0, locationListener);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 1000, 0, locationListener);
locationListener = new LocationListener() {
public void onLocationChanged(Location location) {
Log.d("TAG", "locationListner");
updateWithLocation(location);
String Text = "My current location is: " + "Latitude = "+ location.getLatitude() + "Longitude = " + location.getLongitude();
Toast.makeText(getApplicationContext(), Text, Toast.LENGTH_LONG).show();
Log.d("TAG", "Starting..");
}
public void onStatusChanged(String provider, int status, Bundle extras) {
Log.d("TAG", "onSatatus");
}
public void onProviderEnabled(String provider) {
Log.d("TAG", "onProviderEnable");
}
public void onProviderDisabled(String provider) {
Log.d("TAG", "onProviderDisble");
}
};
}
private void updateWithLocation(Location location) {
Log.d("TAG", "UpdateWithLocation");
String displayString;
if(location!=null){
Double lat=location.getLatitude();
Double lng=location.getLongitude();
Long calTime=location.getTime();
DateFormat formatter = new SimpleDateFormat("dd/MM/yyyy hh:mm:ss.SSS");
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(calTime);
String time=formatter.format(calendar.getTime()).toString();
displayString="The Lat: "+lat.toString()+" \nAnd Long: "+lng.toString()+"\nThe time of Calculation: "+time;
}else{
displayString="No details Found";
}
Toast.makeText(CellTowerActivity1.this, ""+displayString, Toast.LENGTH_LONG).show();
}
}
小區地理位置通過向服務器發送小區塔ID(將其映射到坐標)來工作。 因此,不幸的是,沒有使用標准API進行數據連接的坐標是不可能的。
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