ViewPage Scrolling Duration

ViewPagerActivity.java

try {
  Field mScroller = null;
  mScroller = ViewPager.class.getDeclaredField("mScroller");
  mScroller.setAccessible(true);
  ViewPagerScroller scroller = new ViewPagerScroller(viewPager.getContext());
  mScroller.set(viewPager, scroller);
} catch (Exception e) {
  Log.e("GHM", "error ", e);
}

ViewPagerScroller.java

package com.rcc.newdesign.utils;

import android.content.Context;
import android.view.animation.Interpolator;
import android.widget.Scroller;

/**
 * Created by ponna on 15-09-2017.
 */

public class ViewPagerScroller extends Scroller {

    private int mScrollDuration = 1000;

    public ViewPagerScroller(Context context) {
        super(context);
    }

    public ViewPagerScroller(Context context, Interpolator interpolator) {
        super(context, interpolator);
    }

    public ViewPagerScroller(Context context, Interpolator interpolator, boolean flywheel) {
        super(context, interpolator, flywheel);
    }

    @Override
    public void startScroll(int startX, int startY, int dx, int dy, int duration) {
        super.startScroll(startX, startY, dx, dy, mScrollDuration);
    }
    @Override
    public void startScroll(int startX, int startY, int dx, int dy) {
        super.startScroll(startX, startY, dx, dy, mScrollDuration);
    }
}