how to pass data from activity to running service

Question

I want to send data to the server periodically, I\'m using background Service for that, but I want to send when the data got updated, and updated data I\'m getting

Answer 1

Use multithreading instead it becomes much easier and you will get the same functionality.

 mHandler = new Handler();

    // Set a click listener for button
    btn.setOnClickListener(new View.OnClickListener() {
        @Override
        public void onClick(View view) {
            mCounter = 0;
            /*
                Runnable
                    Represents a command that can be executed. Often used to run code in a
                    different Thread.

                Thread
                    A Thread is a concurrent unit of execution. It has its own call stack for
                    methods being invoked, their arguments and local variables. Each application
                    has at least one thread running when it is started, the main thread, in the
                    main ThreadGroup. The runtime keeps its own threads in the system thread group.

                    There are two ways to execute code in a new thread. You can either subclass
                    Thread and overriding its run() method, or construct a new Thread and pass a
                    Runnable to the constructor. In either case, the start() method must be
                    called to actually execute the new Thread.

            */
            mRunnable = new Runnable() {
                /*
                    public abstract void run ()
                        Starts executing the active part of the class' code. This method is
                        called when a thread is started that has been created with a class which
                        implements Runnable.
                */
                @Override
                public void run() {
                    // Do some task on delay
                    doTask();
                }
            };

            /*
                public final boolean postDelayed (Runnable r, long delayMillis)
                    Causes the Runnable r to be added to the message queue, to be run after the
                    specified amount of time elapses. The runnable will be run on the thread to
                    which this handler is attached. The time-base is uptimeMillis(). Time spent
                    in deep sleep will add an additional delay to execution.
            */
            mHandler.postDelayed(mRunnable, (mInterval));
        }
    }); //use minterval to be the period in ms eg:     private int mInterval = 4000;