tab indicator not moving when swiping but moves on selection

Question

我有一个带有3个标签的主要活动，当我滑动标签指示器不移动但布局改变时，选择标签指示器移动，布局也改变。

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();
                }
            });

Answer 2

You can also do like

tabLayout.setupWithViewPager(viewPager);