我正在使用带 Gps 的 locationListener。当我的 Gps 符号稳定（即停止闪烁）时，意味着它已经获得了新位置，那时它会挂起我的应用程序一段时间。我在 Service 中使用 locationListener。但是当我运行“地图“ 应用程序（google maps.apk 应用程序）它在 Gps 上运行顺畅。所以如果 Gps 关闭，我的应用程序运行非常顺利是什么问题。
我的代码在这里
public class LocationUpdateService extends Service implements IActionController{
private LocationManager _locationManager;
private String _provider;
private boolean _gpsEnabled;
private boolean _networkEnabled;
private String _json;
private boolean _locationSendingByCheckIn;
private Intent _intent;
int i=1;
//private boolean _locationAvailable;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
super.onCreate();
i=1;
String tracking_key = MySharedPreference.getString(MySharedPreference.APP_TRACKING_KEY,"",getApplicationContext());
if (tracking_key == null || tracking_key.equals("")||!MySharedPreference.getBoolean(MySharedPreference.APP_ALLOWED_TO_POST_LOCATION, false, getApplicationContext()))
{
stopService(new Intent(getApplicationContext(),LocationUpdateService.class));
}
else
{
_locationManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
setLocationSendingAlarm(AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID);
getLocation();
}
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
try {
if(!MySharedPreference.getBoolean(MySharedPreference.APP_ALLOWED_TO_POST_LOCATION, false, getApplicationContext()))
{
stopService(new Intent(getApplicationContext(),LocationUpdateService.class));
return;
}
else if (intent.getExtras() != null)
{
if (intent.getExtras().getBoolean("locationSendingAlarm"))
{
_locationSendingByCheckIn=false;
_gpsEnabled=_locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
_networkEnabled=_locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
String _providerOld=MySharedPreference.getString(MySharedPreference.PREVIOUS_LOCATION_PROVIDER, "", getApplicationContext());
if(_providerOld.equalsIgnoreCase(LocationManager.GPS_PROVIDER)&&_locationManager!=null&&!_gpsEnabled&&_networkEnabled)
{
_locationManager.removeUpdates(locationListener);
getLocation();
sendLocationOnServer(LocationUpdateService.this,AppConstants.APP_REPORT_TYPE_SOS);
}
else if((_providerOld.equalsIgnoreCase(LocationManager.NETWORK_PROVIDER))&&_gpsEnabled)
{
sendLocationOnServer(LocationUpdateService.this,AppConstants.APP_REPORT_TYPE_SOS);
if(_locationManager != null) _locationManager.removeUpdates(locationListener);
getLocation();
}
else if(_providerOld.equalsIgnoreCase(""))
{
if(_locationManager != null) _locationManager.removeUpdates(locationListener);
getLocation();
}
else
{
sendLocationOnServer(LocationUpdateService.this,AppConstants.APP_REPORT_TYPE_SOS);
}
}
else if(intent.getExtras().getBoolean(AppConstants.APP_REPORT_TYPE_CHECK_IN))
{
_intent=new Intent(AppConstants.CHECK_IN_BROADCAST_RECEIVER);
_locationSendingByCheckIn=true;
sendLocationOnServer(LocationUpdateService.this,AppConstants.APP_REPORT_TYPE_CHECK_IN);
}
else if(intent.getExtras().getBoolean(AppConstants.APP_SETTINGS_CHANGED))
{
setLocationSendingAlarm(AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID);
if(_locationManager != null) _locationManager.removeUpdates(locationListener);
getLocation();
}
}
}
catch (Exception e) {
}
}
private void getLocation()
{
try{
_gpsEnabled=_locationManager.isProviderEnabled(LocationManager.GPS_PROVIDER);
_networkEnabled=_locationManager.isProviderEnabled(LocationManager.NETWORK_PROVIDER);
/*if(!_gpsEnabled && !_networkEnabled)
{
}*/
/*Criteria criteria = new Criteria();
criteria.setAccuracy(Criteria.ACCURACY_FINE);
_provider = _locationManager.getBestProvider(criteria, false);*/
/* Bundle bundle = new Bundle();
// they would help boost my gps,
boolean xtraInjection=_locationManager.sendExtraCommand(LocationManager.GPS_PROVIDER,
"force_xtra_injection",bundle);
boolean timeInjection=_locationManager.sendExtraCommand(LocationManager.GPS_PROVIDER,
"force_time_injection",bundle);*/
long timeInterval=getTimeInterval();
try
{
if(timeInterval==1000*60)
timeInterval=1000*60*2-1000*20; //100 seconds
else if(timeInterval==1000*60*5)
timeInterval=1000*60*5-1000*30;// 4.5 minutes
else timeInterval=1000*60*5-1000*30; //4.5 minutes
}
catch (Exception e) {
timeInterval=1000*60*5-1000*30; //4.5 min
}
if(_gpsEnabled)
{
_locationManager.requestLocationUpdates(LocationManager.GPS_PROVIDER,timeInterval,200,locationListener);
return;
}
else if(_networkEnabled)
{
_locationManager.requestLocationUpdates(LocationManager.NETWORK_PROVIDER,timeInterval,200,locationListener);
return;
}
else
{
MySharedPreference.putString(MySharedPreference.PREVIOUS_LOCATION_PROVIDER, "", getApplicationContext());
}
/*Location location = _locationManager.getLastKnownLocation(LocationManager.GPS_PROVIDER);
if(null==location)
{
location = _locationManager.getLastKnownLocation(LocationManager.NETWORK_PROVIDER);
}
if(null==location)
{
location = _locationManager.getLastKnownLocation(LocationManager.PASSIVE_PROVIDER);
}
else if(location != null && location.getProvider()!=null)
{
_locationManager.requestLocationUpdates(location.getProvider(),5*60*1000,0,locationListener);
_locationAvailable=true;
}*/
}
catch(Exception ex)
{
MySharedPreference.putString(MySharedPreference.PREVIOUS_LOCATION_PROVIDER, "", getApplicationContext());
}
}
/**
*
* Location listener
*/
LocationListener locationListener = new LocationListener() {
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
/*
Toast.makeText(getApplicationContext(), "status changed", Toast.LENGTH_SHORT).show();
switch (status) {
case LocationProvider.OUT_OF_SERVICE:
break;
case LocationProvider.TEMPORARILY_UNAVAILABLE:
break;
case LocationProvider.AVAILABLE:
break;
}*/
}
@Override
public void onProviderEnabled(String provider) {
}
@Override
public void onProviderDisabled(String provider) {
}
@Override
public void onLocationChanged(final Location location) {
Toast.makeText(getApplicationContext(), ""+i, Toast.LENGTH_SHORT).show();
i++;
saveLocation(getApplicationContext(),location);
}
};
public void saveLocation(Context context, Location location)
{
if(location!=null)
{
double _latitude=location.getLatitude();
double _longitude=location.getLongitude();
double _altidude=location.getAltitude();
float _accuracy=location.getAccuracy();
float _bearing=location.getBearing();
float _speed=location.getSpeed() * 3.6f;
long _time=location.getTime();
String _address=getAddress(location);
double _latitudeOld =MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_LATITUDE, 0.0f, context);
double _longitudeOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_LONGITUDE, (float)0.0, context);
MySharedPreference.putBoolean(MySharedPreference.IS_LOCATION_STATIC, _latitude == _latitudeOld && _longitude == _longitudeOld, context);
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_LATITUDE, (float)_latitude, context);
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_LONGITUDE, (float)_longitude, context);
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_ALTITUDE, (float)_altidude, context);
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_ACCURACY, _accuracy, context);;;
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_BEARING, _bearing, context);;
MySharedPreference.putFloat(MySharedPreference.PREVIOUS_LOCATION_SPEED, _speed, context);; ;
MySharedPreference.putLong(MySharedPreference.PREVIOUS_LOCATION_TIME, _time, context);
MySharedPreference.putString(MySharedPreference.PREVIOUS_LOCATION_ADDRESS, _address, context);
MySharedPreference.putString(MySharedPreference.PREVIOUS_LOCATION_PROVIDER, location.getProvider(), context);
if(NativeHelper.getDistanceInMeter(_latitude, _longitude, _latitudeOld, _longitudeOld) >= 330)
{
sendLocationOnServer( LocationUpdateService.this, AppConstants.APP_REPORT_TYPE_SOS);
setLocationSendingAlarm(AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID);
}
}
}
public void sendLocationOnServer(Context context, String reportType)
{
try{
String tracking_key = MySharedPreference.getString(MySharedPreference.APP_TRACKING_KEY,"",context);
String _providerOld=MySharedPreference.getString(MySharedPreference.PREVIOUS_LOCATION_PROVIDER, "", context);
if (tracking_key == null || tracking_key.equals("") ||_providerOld.equals(""))
{
return ;
}
double _latitudeOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_LATITUDE, 0.0f, context);
double _longitudeOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_LONGITUDE, (float)0.0, context);
double _altidudeOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_ALTITUDE, (float)0.0, context);
float _accuracyOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_ACCURACY, (float)0.0, context);;;
float _bearingOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_BEARING, (float)0.0, context);;
float _speedOld=MySharedPreference.getFloat(MySharedPreference.PREVIOUS_LOCATION_SPEED, (float)0.0, context);; ;
boolean isStatic = MySharedPreference.getBoolean(MySharedPreference.IS_LOCATION_STATIC, false, context);
String _addressOld=MySharedPreference.getString(MySharedPreference.PREVIOUS_LOCATION_ADDRESS, "Address not available", context);
RequestAppLocationSending appLocationSending=new RequestAppLocationSending();
appLocationSending.setImei(NativeHelper.getDeviceId(context));
appLocationSending.setBattery((int)TrackMyDeviceUtils.getBatteryLevel(context));
appLocationSending.setLatitude(_latitudeOld);
appLocationSending.setLongitude(_longitudeOld);
appLocationSending.setAltitude((int)_altidudeOld );
appLocationSending.setAccuracy(_accuracyOld);
appLocationSending.setCouse(_bearingOld);
appLocationSending.setSpeed(_speedOld);
appLocationSending.setTracking_key(tracking_key);
appLocationSending.setAddress(_addressOld);
appLocationSending.setDate(TrackMyDeviceUtils.getFormatedDateForLocationSending());
appLocationSending.setReportType(reportType);
appLocationSending.setStatic(isStatic);
if(_providerOld.equalsIgnoreCase(LocationManager.GPS_PROVIDER))
appLocationSending.setData_source("G");
else
appLocationSending.setData_source("N");
_json= appLocationSending.toJson();
LocationSendingController locationSendingController=new LocationSendingController((IActionController)context, EventType.APP_LOCATION_SENDING);
try {
locationSendingController.requestService(_json);
} catch (Exception e) {
}
}
catch (Exception e) {
e.printStackTrace();
}
}
private String getAddress(Location location)
{
List<Address> addresses;
try{
addresses = new Geocoder(this,Locale.getDefault()).getFromLocation(location.getLatitude(), location.getLongitude(), 1);
return findAddress(addresses);
}
catch (Exception e) {
try{
addresses= ReverseGeocode.getFromLocation(location.getLatitude(), location.getLongitude(), 1);
return findAddress(addresses);
}
catch (Exception e1) {
return "Address not available";
}
}
//return "Address not available";
}
private String findAddress(List<Address> addresses)
{
String address="Address not available";
if(addresses!=null)
{
for(int i=0;i<addresses.size();i++){
Address addre=addresses.get(i);
String street=addre.getAddressLine(0);
if(null==street)
street="";
String city=addre.getLocality();
if(city==null) city="";
/*if(city!=null)
MySharedPreference.putString(MySharedPreference.PREVIOUS_CITY_NAME, city, getApplicationContext());
else
city=MySharedPreference.getString(MySharedPreference.PREVIOUS_CITY_NAME, "", getApplicationContext());*/
String state=addre.getAdminArea();
if(state==null) state="";
/*if(state!=null)
MySharedPreference.putString(MySharedPreference.PREVIOUS_STATE_NAME, state, getApplicationContext());
else
state=MySharedPreference.getString(MySharedPreference.PREVIOUS_STATE_NAME, "", getApplicationContext());*/
String country=addre.getCountryName();
if(country==null) country="";
/*if(country!=null)
MySharedPreference.putString(MySharedPreference.PREVIOUS_COUNTRY_NAME, country, getApplicationContext());
else
country=MySharedPreference.getString(MySharedPreference.PREVIOUS_COUNTRY_NAME, "", getApplicationContext());*/
address=street+", "+city+", "+state+", "+country;
}
return address;
}
return address;
}
private void setLocationSendingAlarm(int alarmId) {
AlarmManager alarmManager = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(getApplicationContext(), LocationUpdateService.class);
intent.putExtra("locationSendingAlarm", true);
PendingIntent pendingIntent = PendingIntent.getService(this, AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID, intent,0);
try {
alarmManager.cancel(pendingIntent);
} catch (Exception e) {
}
long timeForAlarm=getTimeInterval();
alarmManager.setRepeating(AlarmManager.RTC_WAKEUP,System.currentTimeMillis()+timeForAlarm, timeForAlarm,pendingIntent);
}
private void cancleAlarm(int alarmId)
{
AlarmManager alarmManager = (AlarmManager) getApplicationContext().getSystemService(Context.ALARM_SERVICE);
Intent intent = new Intent(getApplicationContext(), LocationUpdateService.class);
intent.putExtra("locationSendingAlarm", true);
PendingIntent pendingIntent;
pendingIntent = PendingIntent.getService(this, AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID, intent, 0);
try {
alarmManager.cancel(pendingIntent);
}
catch (Exception e) {
}
}
@Override
public Activity getMyActivityReference() {
return null;
}
@Override
public void setScreenData(Object screenData, int event, long time) {
Message msg=new Message();
msg.obj=screenData;
msg.arg1=event;
handler.sendMessage(msg);
}
protected Handler handler = new Handler() {
public void handleMessage(android.os.Message msg) {
updateUI(msg);
}
};
public void updateUI(Message o)
{
try{
if(o.obj instanceof MyError) {
switch(((MyError)o.obj).getErrorcode())
{
case MyError.NETWORK_NOT_AVAILABLE:
{
if(_locationSendingByCheckIn)
{
_intent.putExtra("Response","Network not available");
_intent.putExtra("LocationPostedSuccessfuly", false);
sendBroadcast(_intent);
_locationSendingByCheckIn=false;
}
break;
}
case MyError.EXCEPTION:
case MyError.UNDEFINED:
{
if(_locationSendingByCheckIn)
{
_intent.putExtra("Response","Server not responding. Please try later");
_intent.putExtra("LocationPostedSuccessfuly", false);
sendBroadcast(_intent);
_locationSendingByCheckIn=false;
}
}
}
}
else if (o.obj instanceof ResponseAppLocationSending) {
ResponseAppLocationSending responseAppLocationSending=(ResponseAppLocationSending) o.obj;
if(responseAppLocationSending.getResponce().contains("saved"))
{
if(_locationSendingByCheckIn)
{
_intent.putExtra("Response","Check In Submitted");
_intent.putExtra("LocationPostedSuccessfuly", true);
sendBroadcast(_intent);
}
//else setLocationSendingAlarm(AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID);
}
else {
if(_locationSendingByCheckIn)
{
_intent.putExtra("Response","Server not responding. Please try later");
_intent.putExtra("LocationPostedSuccessfuly", false);
sendBroadcast(_intent);
}
}
}
}
catch (Exception e) {
if(_locationSendingByCheckIn)
{
_intent.putExtra("Response","Server not responding. Please try later");
_intent.putExtra("LocationPostedSuccessfuly", false);
sendBroadcast(_intent);
_locationSendingByCheckIn=false;
}
}
_locationSendingByCheckIn=false;
}
private long getTimeInterval()
{
try{
String s=MySharedPreference.getString(MySharedPreference.APP_REPORTING_TIME, "10", getApplicationContext());
int time = Integer.parseInt(s);
if(time<1) time=10;
return time*1000*60;
}
catch (Exception e) {
return 1000*60*10; //10 minutes
}
}
@Override
public void onDestroy()
{
if(_locationManager!=null)
_locationManager.removeUpdates(locationListener);
cancleAlarm(AppConstants.PENDING_INTENET_LOCATION_PROVIDER_ENABLE_ALARM_ID);
super.onDestroy();
}
}