I am developing a project in which I want to pick up the incoming call automatically after the certain interval, play an audio file and record the conversation for minute. As I have been Successful in implementing Callreciever Function in which I can able to detect the current call state of my phone.
CallReciever.Java
package com.example.deepdepindersingh.activevoice;
import android.content.Context;
import android.widget.Toast;
import java.util.Date;
/**
 * Created by Deep Depinder Singh on 8/21/2016.
 */
public class CallReceiver extends PhonecallReceiver {
    @Override
    // call comming
    protected void onIncomingCallStarted(Context ctx, String number, Date start) {
        Toast.makeText(ctx, number , Toast.LENGTH_SHORT).show();
    }
    @Override
    //Call picked by me
    protected void onOutgoingCallStarted(Context ctx, String number, Date start) {
        Toast.makeText(ctx, number , Toast.LENGTH_SHORT).show();
    }
    @Override
    // Call ended by me
    protected void onIncomingCallEnded(Context ctx, String number, Date start, Date end) {
        Toast.makeText(ctx, number , Toast.LENGTH_SHORT).show();
    }
    @Override
    protected void onOutgoingCallEnded(Context ctx, String number, Date start, Date end) {
    }
    @Override
    protected void onMissedCall(Context ctx, String number, Date start) {
        Toast.makeText(ctx, number , Toast.LENGTH_SHORT).show();
    }
}
 
     
    