关于 Fragment 的 show hide方法 的使用

在AFragment的监听中执行下面的代码进入BFragment

BFragment bFragment = new BingerFragment();

FragmentManager fm = getActivity().getFragmentManager();
FragmentTransaction ft = fm.beginTransaction();
ft.add(R.id.id_business_content, bFragment);

                ft.hide(AFragment.this);
                ft.show(bFragment);
                ft.commit();

然后在BFragment中
Button button = (Button) view.findViewById(R.id.back);
button.setOnClickListener(new View.OnClickListener() {
@TargetApi(Build.VERSION_CODES.JELLY_BEAN_MR1)
@Override
public void onClick(View v) {
fragmentManager =getChildFragmentManager();
FragmentTransaction transaction = fragmentManager.beginTransaction();
transaction.hide(BFragment.this);
AFragment aFragment = new AFragment();
transaction.show(aFragment);
transaction.commit();
}
});

                                    这里BFragment隐藏之后Afragment并没有显示出来，想请教一下如何修改？

http://blog.csdn.net/zxw136511485/article/details/46625063