领券联盟的MainActivity隐藏Fragment

private void switchFragment(BaseFragment targetFragment) {
        FragmentTransaction fragmentTransaction = mFragmentManager.beginTransaction();
        if (!targetFragment.isAdded()) {
            fragmentTransaction.add(R.id.main_page_container, targetFragment);

        } else {
            fragmentTransaction.show(targetFragment);
        }

        if (lastFragment != null && lastFragment != targetFragment) {   //修改
            fragmentTransaction.hide(lastFragment);
        }
        lastFragment = targetFragment;
//        fragmentTransaction.replace(R.id.main_page_container,targetFragment);
        fragmentTransaction.commit();
    }

如何下面的导航栏 例如首页连点两次，会被隐藏。

解决办法： lastFragment != targetFragment 增加一个条件