使用LocationListener的服务

Question

我的代码是

    public class AlarmService extends Service implements LocationListener {
        public int onStartCommand(Intent intent,int flags,int startId){
        getLocation();
        if(reachedLocation()){
        Intent alarmIntent=new Intent(getApplicationContext(),MainActivity.class);
        startActivity(alarmIntent);
        stopSelf();
        }
@Override
        public void onLocationChanged(Location location) {
        getLocation();
        if(reachedLocation()){
        Intent alarmIntent=new Intent(getApplicationContext(),MainActivity.class);
        startActivity(alarmIntent);
        stopSelf();
        }
}

永远不会调用onLocationChanged。我将两次更新之间的最短时间设置为1分钟。它不会在1分钟内调用，也不会在位置更改时调用。

Answer 1

您必须先请求更新，然后才能通过以下方式获取更新：

    LocationManager locManager = (LocationManager) context.getSystemService(Context.LOCATION_SERVICE);
    locManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, this);

此外，请记住将ACCESS_FINE_LOCATION作为权限添加到清单中