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我有問題如何在服務中調用我的方法，我的方法是getambil_jmlgangguan()。如何從其他活動中調用服務方法
詳細的代碼是在這裏：
public class GetCountDataGangguanService extends Service {
public String JUMLAH_GANGGUAN ="";
public static final String TAG = "MyServiceTag1";
GlobalKoneksi konek_url = new GlobalKoneksi();
GetJmlGangguanFunction jmlGangguanFUnctions = new GetJmlGangguanFunction();
private static String KEY_SUCCESS = "success";
private static String KEY_JUMLAH_DATA = "jumlah";
JSONArray jml_data_json = null;
// UserFunctions userFunctions;
UserFunctions userFunctions = new UserFunctions();
SessionManager session;
@Override
public void onCreate() {
// TODO Auto-generated method stub
mHandlers = new ArrayList<Handler>();
Toast.makeText(this, "GetCountDataGangguan.onCreate()",
Toast.LENGTH_SHORT).show();
//getambil_jmlgangguan();
}
@Override
public IBinder onBind(Intent intent) {
// TODO Auto-generated method stub
Toast.makeText(this, "GetCountDataGangguan.onBind()", Toast.LENGTH_SHORT)
.show();
return messenger.getBinder();
}
public class LocalBinder extends Binder {
public GetCountDataGangguanService getServerInstance() {
return GetCountDataGangguanService.this;
}
}
@Override
public void onDestroy() {
// TODO Auto-generated method stub
Log.d("GetCountDataGangguan.onDestroy()", "Sudah di destroy");
Toast.makeText(this, "GetCountDataGangguan.onDestroy()",
Toast.LENGTH_SHORT).show();
super.onDestroy();
}
@Override
public void onStart(Intent intent, int startId) {
// TODO Auto-generated method stub
super.onStart(intent, startId);
}
@Override
public boolean onUnbind(Intent intent) {
// TODO Auto-generated method stub
Toast.makeText(this, "GetCountDataGangguan.onUnbind()",
Toast.LENGTH_SHORT).show();
return super.onUnbind(intent);
}
public String getambil_jmlgangguan(){
session = new SessionManager(getApplicationContext());
session.checkLogin();
HashMap<String, String> user = session.getUserDetails();
String unit_id = user.get(SessionManager.KEY_UNITID);
String regu_id = user.get(SessionManager.KEY_REGUID);
JSONObject jsondatagangguan = jmlGangguanFUnctions.getcountdata(
regu_id, unit_id);
try {
Log.d("JUMLAH_GANGGUAN",jsondatagangguan.getString(KEY_JUMLAH_DATA));
JUMLAH_GANGGUAN = jsondatagangguan.getString(KEY_JUMLAH_DATA);
} catch (JSONException e) {
e.printStackTrace();
}
return JUMLAH_GANGGUAN;
}
}
如何調用方法getambil_jmlgangguan()另一活動e.g MainActivity並定期獲得JUMLAH_GANGGUAN結果。