tab indicator not moving when swiping but moves on selection

Question

I have a main activity with 3 tabs,when i swipe the tabbed indicator doesn't move but the layout changes while selecting a tab the indicator moves and the layout changes too.

Answer 1

Make sure you have a OnPageChangeListener attached to your ViewPager

mViewPager.setOnPageChangeListener(
            new ViewPager.SimpleOnPageChangeListener() {
                @Override
                public void onPageSelected(int position) {
                    mTabs.getTabAt(position).select();
                }
            });