Question

I want to add my application in sync option in Android -> Setting.

I have created Sync Adapter and it works perfect..

But my contacts are not added under my account.. I got my account under "Contact to display" but when i select my account, there is no contacts in that account. Can anyone please help me out...

I have referred a lot like this and this.

But my issue is not discussed in any of them.. Thank you in advance...

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Solution

You can try this link to handle your apps idle time

Application idle time

and in (taken from that answer)

public class ControlApplication extends Application{

    private static final String TAG=ControlApplication.class.getName();
    private Waiter waiter;  //Thread which controls idle time

    // only lazy initializations here!
    @Override
    public void onCreate(){
        super.onCreate();
        Log.d(TAG, "Starting application"+this.toString());
        waiter=new Waiter(15*60*1000); //15 mins
        waiter.start();
        setContentView(R.layout.blackscreen);
    }

    public void touch(){
        waiter.touch();
    }
}

you can call an xml file which has background as black using

EDIT

blackscreen.xml

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#000000"
    tools:context=".MainActivity">
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