ユーザーの場所を定期的に取得してサーバーに送信しようとしているアプリがあります。AlarmManager（テスト用に）毎分実行されるサービスが接続されています。サービスはユーザーの位置を正しく検出し、GPS 座標をログアウトします。GPS ロックが発生したら、位置情報のリクエストをキャンセルしてサービスを停止します。Handler位置の更新を要求すると、20 秒後に実行されるを開始します。これHandlerにより、位置の更新が削除され、Serviceロックが達成されない場合に が停止します。これはすべて機能します。
Service以下は、クラスを使用して動作するコードです。
public class TrackingService extends Service {
private static final String TAG = TrackingService.class.getSimpleName();
LocationManager mlocManager;
LocationListener mlocListener;
NfcScannerApplication nfcscannerapplication;
String carerID;
Handler endServiceHandler;
Runnable endServiceRunnable;
@Override
public void onCreate() {
super.onCreate();
nfcscannerapplication = (NfcScannerApplication) getApplication();
mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
Log.e(TAG, "Service created and location manager and listener created");
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e(TAG, "in onDestroy in LocationService class");
mlocManager.removeUpdates(mlocListener);
}
@Override
public void onStart(Intent intent, int startId) {
super.onStart(intent, startId);
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener);
Log.e(TAG, "requesting location updates");
enableMenuButtonsHandler();
endServiceHandler.postDelayed(endServiceRunnable,20 * 1000);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
Log.e(TAG, "in TrackingService onlocationChanged and about to send lon/lat " + loc.getLongitude() + " " + loc.getLatitude());
DateTime dt = new DateTime();
DateTimeFormatter df3 = DateTimeFormat.forPattern("yyyy-MM-dd H:mm:ss.SSS");
String formattedNowTime3 = df3.print(dt);
Log.e(TAG, "Time of location fix in TrackingServive = " + formattedNowTime3);
Cursor c = nfcscannerapplication.loginValidate.queryAllFromCarer();
if (c.getCount() > 0) {
if(c.moveToLast()){
carerID = c.getString(c.getColumnIndex(LoginValidate.C_CARER_ID));
}
}
Log.e(TAG, "carer ID = " + carerID);
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService)");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService");
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}// end of MyLocationListener
public void enableMenuButtonsHandler() {
endServiceHandler = new Handler();
endServiceRunnable = new Runnable() {
public void run() {
endService();
}
private void endService() {
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService) from the endService handler");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService from the endService handler");
}
};
}
}// end of service
私が抱えている問題は、GPS ロックを取得したら、サーバーに長い座標と緯度の座標を送信したいということです。AsyncTaskから使用できることはわかっていますが、Serviceこれはしたくありません。IntentService独自のバックグラウンド スレッドで実行されるため、使用することをお勧めします。このようにして、から直接ネットワーク呼び出しを行うことができますIntentService。
次のコードはクラスを実装してIntentServiceいますが、ロックを取得していないようです。携帯電話の GPS が無期限に点滅し続けます。ログ ステートメントは、「位置情報の更新を要求する」まで取得され、その後は何も取得されません。
ロックが達成されない理由は誰にもありますか? 前もって感謝します。
public class TrackingService extends IntentService {
private static final String TAG = TrackingService.class.getSimpleName();
LocationManager mlocManager;
LocationListener mlocListener;
NfcScannerApplication nfcscannerapplication;
String carerID;
Handler endServiceHandler;
Runnable endServiceRunnable;
public TrackingService() {
super("TrackingService");
}
@Override
protected void onHandleIntent(Intent intent) {
nfcscannerapplication = (NfcScannerApplication) getApplication();
mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
Log.e(TAG, "Service created and location manager and listener created");
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener);
Log.e(TAG, "requesting location updates");
enableMenuButtonsHandler();
endServiceHandler.postDelayed(endServiceRunnable,20 * 1000);
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
Log.e(TAG, "in TrackingService onlocationChanged and about to send lon/lat " + loc.getLongitude() + " " + loc.getLatitude());
DateTime dt = new DateTime();
DateTimeFormatter df3 = DateTimeFormat.forPattern("yyyy-MM-dd H:mm:ss.SSS");
String formattedNowTime3 = df3.print(dt);
Log.e(TAG, "Time of location fix in TrackingServive = " + formattedNowTime3);
Cursor c = nfcscannerapplication.loginValidate.queryAllFromCarer();
if (c.getCount() > 0) {
if(c.moveToLast()){
carerID = c.getString(c.getColumnIndex(LoginValidate.C_CARER_ID));
}
}
Log.e(TAG, "carer ID = " + carerID);
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService)");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService");
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}// end of MyLocationListener
public void enableMenuButtonsHandler() {
endServiceHandler = new Handler();
endServiceRunnable = new Runnable() {
public void run() {
endService();
}
private void endService() {
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService) from the endService handler");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService from the endService handler");
}
};
}
}//end of trackingService
[編集1]
public class TrackingService extends Service {
private static final String TAG = TrackingService.class.getSimpleName();
LocationManager mlocManager;
LocationListener mlocListener;
NfcScannerApplication nfcscannerapplication;
String carerID;
Handler endServiceHandler;
Runnable endServiceRunnable;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
nfcscannerapplication = (NfcScannerApplication) getApplication();
mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
Log.e(TAG, "Service created and location manager and listener created");
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener);
Log.e(TAG, "requesting location updates");
enableMenuButtonsHandler();
endServiceHandler.postDelayed(endServiceRunnable, 20 * 1000);
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e(TAG, "in onDestroy in LocationService class");
mlocManager.removeUpdates(mlocListener);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
Log.e(TAG, "in TrackingService onlocationChanged and about to send lon/lat " + loc.getLongitude() + " " + loc.getLatitude());
DateTime dt = new DateTime();
DateTimeFormatter df3 = DateTimeFormat.forPattern("yyyy-MM-dd H:mm:ss.SSS");
String formattedNowTime3 = df3.print(dt);
Log.e(TAG, "Time of location fix in TrackingServive = " + formattedNowTime3);
Cursor c = nfcscannerapplication.loginValidate.queryAllFromCarer();
if (c.getCount() > 0) {
if(c.moveToLast()){
carerID = c.getString(c.getColumnIndex(LoginValidate.C_CARER_ID));
}
}
Log.e(TAG, "carer ID = " + carerID);
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService)");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService");
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}// end of MyLocationListener
public void enableMenuButtonsHandler() {
endServiceHandler = new Handler();
endServiceRunnable = new Runnable() {
public void run() {
endService();
}
private void endService() {
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService) from the endService handler");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService from the endService handler");
}
};
}
}// end of service
[編集2]
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
nfcscannerapplication = (NfcScannerApplication) getApplication();
mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
Log.e(TAG, "Service created and location manager and listener created");
HandlerThread handlerThread = new HandlerThread("MyHandlerThread");
handlerThread.start();
Looper looper = handlerThread.getLooper();
Handler handler = new Handler(looper);
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener, looper);
Log.e(TAG, "requesting location updates");
enableMenuButtonsHandler();
endServiceHandler.postDelayed(endServiceRunnable, 20 * 1000);
return super.onStartCommand(intent, flags, startId);
}
[編集3]
public class TrackingService extends Service {
private static final String TAG = TrackingService.class.getSimpleName();
LocationManager mlocManager;
LocationListener mlocListener;
NfcScannerApplication nfcscannerapplication;
String carerID;
Handler endServiceHandler;
Runnable endServiceRunnable;
HandlerThread handlerThread;
Looper looper;
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
nfcscannerapplication = (NfcScannerApplication) getApplication();
mlocManager = (LocationManager) getSystemService(Context.LOCATION_SERVICE);
mlocListener = new MyLocationListener();
Log.e(TAG, "Service created and location manager and listener created");
Log.e(TAG, "creating handlerthread and looper");
handlerThread = new HandlerThread("MyHandlerThread");
handlerThread.start();
looper = handlerThread.getLooper();
mlocManager.requestLocationUpdates(LocationManager.GPS_PROVIDER, 0, 0, mlocListener, looper);
Log.e(TAG, "requesting location updates");
enableMenuButtonsHandler();
endServiceHandler.postDelayed(endServiceRunnable, 20 * 1000);
return super.onStartCommand(intent, flags, startId);
}
@Override
public void onDestroy() {
super.onDestroy();
Log.e(TAG, "in onDestroy in LocationService class");
mlocManager.removeUpdates(mlocListener);
}
@Override
public IBinder onBind(Intent intent) {
return null;
}
private class MyLocationListener implements LocationListener {
@Override
public void onLocationChanged(Location loc) {
Log.e(TAG, "in TrackingService onlocationChanged and about to send lon/lat " + loc.getLongitude() + " " + loc.getLatitude());
DateTime dt = new DateTime();
DateTimeFormatter df3 = DateTimeFormat.forPattern("yyyy-MM-dd H:mm:ss.SSS");
String formattedNowTime3 = df3.print(dt);
Log.e(TAG, "Time of location fix in TrackingServive = " + formattedNowTime3);
Cursor c = nfcscannerapplication.loginValidate.queryAllFromCarer();
if (c.getCount() > 0) {
if(c.moveToLast()){
carerID = c.getString(c.getColumnIndex(LoginValidate.C_CARER_ID));
}
}
Log.e(TAG, "carer ID = " + carerID);
nfcscannerapplication.loginWebservice.sendCarerLocation(carerID, formattedNowTime3, String.valueOf(loc.getLatitude()), String.valueOf(loc.getLongitude()));
Log.e(TAG, "quiting handlerthread");
handlerThread.quit();
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService)");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService");
}
@Override
public void onProviderDisabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onProviderEnabled(String provider) {
// TODO Auto-generated method stub
}
@Override
public void onStatusChanged(String provider, int status, Bundle extras) {
// TODO Auto-generated method stub
}
}// end of MyLocationListener
public void enableMenuButtonsHandler() {
endServiceHandler = new Handler();
endServiceRunnable = new Runnable() {
public void run() {
endService();
}
private void endService() {
mlocManager.removeUpdates(mlocListener);
Log.e(TAG, "removed updates(TrackingService) from the endService handler");
TrackingService.this.stopSelf();
Log.e(TAG, "called stopSelf on TrackingService from the endService handler");
Log.e(TAG, "quiting handlerthread from the endService handler");
handlerThread.quit();
}
};
}
}// end of service