How to create a simple looping service that prints to the logs in the background for android?

Question

I'm trying to create a simple service that prints to the logs every few seconds, even when the app is back grounded, and although I've researched this, I'm still bemused as to how I could do it. I'd really appreciate it if someone could show me a bit of code that I could use to do this.

Answer 1

LOGGING

Android Writing Logs to text File

Logging to a file on Android

BACKGROUND

How to run an android app in background?

Answer 2

ServiceClass.java (IntentService starts on a new thread, we do not need to create a new thread in it.)

  public class IntentServiceDemo extends IntentService {
          int currentState=0;

      public IntentServiceDemo() {
        super("IntentServiceDemoWorker");  // super the name of worker thread, it is necessary.
    }
    @Override
     protected void onHandleIntent(Intent intent) {
                while (true) {
                    try {
                        Thread.sleep(5000);
                    } catch (InterruptedException e) {
                        e.printStackTrace();
                    }
                       ++currentState:
                    Log.d("vabhi", "currentState : " + currentState);
                }  // End of while
    }
}

Mainifest (inside application tag)

<service android:name=".IntentServiceDemo" android:exported="false"></service>

inside MainActivity.java

public void startIntentService(View v)
{
    Intent intent = new Intent(MainActivity.this,IntentServiceDemo.class);
    startService(intent);
}