5
Pracujemy nad rozwojem usługi dla platformy Android.Czy możliwe jest ciągłe uruchamianie usługi na platformie Android, nawet po zablokowaniu urządzenia?
W naszym serwisie musimy wysyłać dane GPS (długie i długie) urządzenia do jakiejś zewnętrznej usługi REST po każdej minucie.
Działa prawie przez 15 minut po zamknięciu urządzenia. Ale potem nie wysyła żadnych danych.
Po odblokowaniu urządzenia rozpoczyna się ponownie wysyłanie danych za pośrednictwem usługi REST.
mojego kodu Dotychczas
public class MainActivity extends AppCompatActivity {
private PendingIntent pendingIntent;
private PowerManager.WakeLock wakeLock;
public static final String USER_NAME = "USERNAME";
String username;
String password;
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
Intent alarm = new Intent(this, AlarmReceiver.class);
boolean alarmRunning = (PendingIntent.getBroadcast(this, 0, alarm, PendingIntent.FLAG_NO_CREATE) != null);
if(alarmRunning == false) {
PendingIntent pendingIntent = PendingIntent.getBroadcast(this, 0, alarm, 0);
AlarmManager alarmManager = (AlarmManager) getSystemService(Context.ALARM_SERVICE);
alarmManager.setRepeating(AlarmManager.ELAPSED_REALTIME_WAKEUP, SystemClock.elapsedRealtime(), 30000, pendingIntent);
}
PowerManager mgr = (PowerManager)this.getSystemService(Context.POWER_SERVICE);
wakeLock = mgr.newWakeLock(PowerManager.PARTIAL_WAKE_LOCK,"MyWakeLock");
wakeLock.acquire();
}
public class BackgroundService extends Service {
private boolean isRunning;
private Context context;
private Thread backgroundThread;
@Override
public IBinder onBind(Intent intent) {
return null;
}
@Override
public void onCreate() {
this.context = this;
this.isRunning = false;
this.backgroundThread = new Thread(myTask);
}
private Runnable myTask = new Runnable() {
public void run() {
// Do something here
login("admin","admin");
stopSelf();
}
};
@Override
public void onDestroy() {
this.isRunning = false;
}
@Override
public int onStartCommand(Intent intent, int flags, int startId) {
if(!this.isRunning) {
this.isRunning = true;
this.backgroundThread.start();
}
return START_STICKY;
}
private void login(final String strLatitude, final String strLongitude) {
class LoginAsync extends AsyncTask<String, Void, String> {
String charset = "UTF-8";
HttpURLConnection conn;
DataOutputStream wr;
StringBuilder result = new StringBuilder();
URL urlObj;
JSONObject jObj = null;
StringBuilder sbParams;
String paramsString;
@Override
protected void onPreExecute() {
super.onPreExecute();
// loadingDialog = ProgressDialog.show(MainActivity.this, "Please wait", "Loading...");
}
@Override
protected String doInBackground(String... params) {
String uname = params[0];
String pass = params[1];
sbParams = new StringBuilder();
try {
sbParams.append("name").append("=")
.append(URLEncoder.encode(uname, charset));
sbParams.append("&");
sbParams.append("password").append("=")
.append(URLEncoder.encode(pass, charset));
} catch (UnsupportedEncodingException e) {
e.printStackTrace();
}
try {
String url="http://192.168.0.122:1234/YegoService.svc/AddVehicleMovement";
URL object=new URL(url);
HttpURLConnection con = (HttpURLConnection) object.openConnection();
con.setDoOutput(true);
con.setDoInput(true);
con.setRequestProperty("Content-Type", "application/json");
con.setRequestProperty("Accept", "application/json");
con.setRequestMethod("POST");
JSONObject parent = new JSONObject();
parent.put("strValidatorID","111");
parent.put("TXT_LAT", "28.25252525");
parent.put("TXT_LONG", "77.7777777");
parent.put("DAT_DATE", "");
con.connect();
OutputStreamWriter wr = new OutputStreamWriter(con.getOutputStream());
wr.write(parent.toString());
wr.flush();
wr.close();
InputStream input = con.getInputStream();
BufferedReader reader = new BufferedReader(new InputStreamReader(input));
String line;
while ((line = reader.readLine()) != null) {
result.append(line);
}
con.disconnect();
} catch (IOException e) {
e.printStackTrace();
}
catch (Exception ex) {
ex.printStackTrace();
}
return result.toString();
}
@Override
protected void onPostExecute(String result){
String s = result.trim();
}
}
LoginAsync la = new LoginAsync();
la.execute("admin", "admin");
}
}
public class AlarmReceiver extends BroadcastReceiver {
String strLatitude;
String strLongitude;
@Override
public void onReceive(Context context, Intent intent) {
Intent background = new Intent(context, BackgroundService.class);
context.startService(background);
}
}
Co robić?
Czy testowane na innym urządzeniu? Czy o/p będzie takie samo? –
Testowany na innym urządzeniu, z tym samym wynikiem !!! –
Czy używasz częściowego wakeloku? – ozo