我有一个位置监听器类和一个服务类.在我的位置监听器课程中,我正在启动GPS,并且每隔10秒我就会继续获取该位置.我的要求是每天晚上7点停止GPS位置更新.我试图使用removeupdates停止服务中的GPS更新,但它无法正常工作.我怎样才能做到这一点.以下是我的代码.
LocationGPS.java
public class LocationGPS extends Activity implements LocationListener {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
public static LocationManager locationManager;
locationManager = (LocationManager)getSystemService(Context.LOCATION_SERVICE);
locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,10*1000,this);
Intent myIntent = new Intent(this,PIService.class);
PendingIntent sevenPMIntent = PendingIntent.getService(this,myIntent,0);
AlarmManager alarmManager = (AlarmManager)getSystemService(ALARM_SERVICE);
Calendar calendar = Calendar.getInstance();
calendar.setTimeInMillis(System.currentTimeMillis());
calendar.set(Calendar.HOUR_OF_DAY,19);
calendar.set(Calendar.MINUTE,0);
calendar.set(Calendar.SECOND,0);
//alarmManager.set(AlarmManager.RTC_WAKEUP,calendar.getTimeInMillis(),pendingIntent);
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,24*60*60*1000,sevenPMIntent);
}
@Override
public void onLocationChanged(Location location) {
Toast.makeText(getApplicationContext(),"got new location",Toast.LENGTH_SHORT).show();
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onStatusChanged(String provider,int status,Bundle extras) {
}
}
PIService.java
public class PIService extends Service{
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
return null;
}
@Override
public int onStartCommand (Intent intent,int flags,int startId)
{
super.onStartCommand(intent,flags,startId);
//Get the system current time.
Date dt = new Date();
int hours = dt.getHours();
//Compare the current time with 7PM
if(hours == 19){
//if current time is 7PM
Toast.makeText(getApplicationContext(),"Now the time is 7PM",Toast.LENGTH_LONG).show();
LocationGPS.locationManager.removeUpdates(new LocationGPS()); //here is the place i am trying to remove the location updates.
}
}
return START_STICKY;
}
}
解决方法
public void onDestroy() {
Log.e(TAG,"onDestroy");
super.onDestroy();
if (mLocationManager != null) {
for (int i = 0; i < mLocationListeners.length; i++) {
try {
mLocationManager.removeUpdates(mLocationListeners[i]);
} catch (Exception ex) {
Log.i(TAG,"fail to remove location listners,ignore",ex);
}
}
}
}
