Android 如何在底部导航中使用设置屏幕外页面限制

我使用的导航底部有5个片段

每个片段进行HTTP调用并下载内容，但在替换片段时，视图被破坏并再次下载

在我的搜索中，我发现我应该使用setOffscreenPageLimit这个方法 但我不使用viewpager

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如何实现这样的功能？

不要替换片段，而是将片段添加到片段管理器并显示/隐藏它们

@Override
protected void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.activity_main_page);

    addFragmentsToManager();
}

private void addFragmentsToManager() {
    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = 
              fragmentManager.beginTransaction();
    fragmentTransaction.setCustomAnimations(R.anim.fade_in, R.anim.fade_out);

    fragmentTransaction.add(R.id.flContent, tripFragment, 
             tripFragment.getClass().getSimpleName());
    fragmentTransaction.add(R.id.flContent, notificationFragment, 
             notificationFragment.getClass().getSimpleName());
   fragmentTransaction.add(R.id.flContent, searchFragment, 
             searchFragment.getClass().getSimpleName());
   fragmentTransaction.add(R.id.flContent, profileFragment, 
             profileFragment.getClass().getSimpleName());

   fragmentTransaction.hide(tripFragment);
   fragmentTransaction.hide(notificationFragment);
   fragmentTransaction.hide(searchFragment);
   fragmentTransaction.hide(profileFragment);
   fragmentTransaction.commit();
}

private void changeTab(int position) {
    Fragment fragment;
    switch (position) {
        fragment = .....// get framgnet from position
    }

    FragmentManager fragmentManager = getSupportFragmentManager();
    FragmentTransaction fragmentTransaction = 
               fragmentManager.beginTransaction(); 
    fragmentTransaction.setCustomAnimations(R.anim.fade_in, 
               R.anim.fade_out);

    fragmentTransaction.hide(prvFragment);
    fragmentTransaction.show(fragment).commit();
    prvFragment = fragment;
}