对于Android平板电脑应用程序，我用2片段。一个在左侧的画面上，一个在右侧。当在合适的片段点击一个按钮，另一个片段港岛线右边片段的顶部加入。这个片段被添加到backstack。

For a android tablet application I use 2 fragments. One on the left side on the screen and one on the right side. When you click on a button at the right fragment, another fragment wil be added on the top of the right fragment. This fragment is added to the backstack.

FragmentTransaction ft = getFragmentManager().beginTransaction(); 
ft.add(R.id.fragmentlayout, fragment2);
ft.addToBackStack("Fragment2");
ft.commit();

该backstack现在是：

The backstack is now:

[片段1] - > [片段2]

[fragment 1] -> [fragment 2]

在左侧也是打开的片段在左边的片段（相同fragment2）的顶部，并将其添加到backstack一个按钮。该backstack现在

On the left side is also a button that opens a fragment on top of the left fragment (same as fragment2) and adds it to the backstack. The backstack is now

[片段1] - > [片段2] - > [片段3]

[fragment 1] -> [fragment 2] -> [fragment 3]

在片段2是一个按钮关闭该片段。

On fragment 2 is a button to close that fragment.

getFragmentManager().popBackStack("Fragment2", FragmentManager.POP_BACK_STACK_INCLUSIVE);

现在的问题是，当我只想要关闭[片段2]，[3段]也将被销毁。我可以通过调用manualy删除片段

The problem is when I only want to close [fragment 2], [fragment 3] will also be destroyed. I can remove the fragment manualy by calling

FragmentTransaction ft = getActivity().getSupportFragmentManager().beginTransaction();
ft.remove(fragment2).commit();

但backstack仍将

But the backstack will remain

[片段1] - > [（鬼）片段2] - > [片段3]

[fragment 1] -> [(ghost) fragment 2] -> [fragment 3]

所以，你需要preSS回多一次关闭应用程序。

So you need to press back one time more to close the application.

有没有办法只能从backstack删除[片段2]，然后将[片段3]在屏幕上？

Is there a way to only remove [fragment 2] from the backstack and leave [fragment 3] on the screen?

推荐答案

您可以简单地让自己的背部栈和覆盖 onBack pressed（）和处理它以任何方式，你认为合适的。我不认为有达到预期的行为的任何其他方式。

You could simply make your own back stack and override onBackPressed() and handle it in any fashion you see fit. I don't think there is any other way to achieve the desired behavior.

您自己的背部栈可能仅仅是一个的ArrayList 标记为您的片段。

Your own back stack could simply be an ArrayList of tags for your fragments.