将片段添加到最顶部/显示片段后面的后堆栈中

Question

我想知道是否有办法将片段添加到显示片段后面的后台堆栈中。这样当用户按下“返回按钮”时，添加的片段就会显示给用户。

Answer 1

据我所知，我不确定Fragment Manager 可以做这样的事情！

Step-1：将片段挂载到容器时Why don't you add the fragment tobackStack`

Step-2：接下来onBackpressed或click of any view只需从容器中弹出片段

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Here is a sample from another Stackoverflow answer

fragmentTransaction.addToBackStack("fragB");
fragmentTransaction.addToBackStack("fragC");
Then in Fragment_C, pop the back stack using the name ie.. fragB and include POP_BACK_STACK_INCLUSIVE

    someButtonInC.setOnClickListener(new View.OnClickListener() {

        @Override
        public void onClick(View v) {

            FragmentManager fm = getActivity()
                    .getSupportFragmentManager();
            fm.popBackStack ("fragB", FragmentManager.POP_BACK_STACK_INCLUSIVE);
        }
    });