Fragment uses PagerSlidingTabStrip to nest the child Fragment to display the problem. pagerslidingtabstrip

Fragment uses PagerSlidingTabStrip to nest the child Fragment to display the problem. pagerslidingtabstrip

The first fragment represents the homepage. The home page is a tab-like fragment. Two fragment entries are switched using viewpager.

 1  private void InitViewPager(View parentView) { 2        mPager = (ViewPager) parentView.findViewById(R.id.vPager); 3        fragmentsList = new ArrayList<Fragment>(); 4  5  6        fragment1 = new SortHotFragment(); 7        fragment2 = new SortNewFragment(); 8  9 10        fragmentsList.add(fragment1);11        fragmentsList.add(fragment2);12        13        mPager.setAdapter(new MyFragmentPagerAdapter(getActivity().getSupportFragmentManager(), fragmentsList));14        mPager.setCurrentItem(0);15        mPager.setOnPageChangeListener(new MyOnPageChangeListener());16  }

Generally, according to the previous experience, if fragmentmanager is to be imported, it is in red.

However, this will cause a problem: data loss.

When the fragment is switched back and forth, the data in the other individual fragment will not be lost, but the fragment that uses multiple fragment Switches of viewpager will be dark.

 

Solution:

Replace the red font with getChildFragmentManager.

mPager.setAdapter(new MyFragmentPagerAdapter(getChildFragmentManager(), fragmentsList));mPager.setCurrentItem(0);mPager.setOnPageChangeListener(new MyOnPageChangeListener());