从堆栈中弹出特定片段并删除其他片段 [英] pop specific fragment from stack and remove others

问题描述

如何从堆栈中弹出特定片段并从片段中删除其他片段?例如，这些是我的片段，我知道我在 E 中.

how I can pop specific fragment from stack and remove others from a fragment? for example these are my fragments and I'm in E right know.

A-> B -> C -> D ->E

A-> B -> C -> D ->E

想从 E 回到 B 并清除 C 和 D.我该怎么做?

wanna back from E to B and Clear C and D. How I can do this?

推荐答案

你可以为每个fragment添加一个tag，同时将它们添加到backstack中，然后从backstack中popfragment，直到没有到达你想要的tag的fragment.

You can add a tag to each fragment while adding them to the backstack and then popfragment from backstack till the fragment with the tag you want is not reached.

FragmentManager fm = getFragmentManager();

for (int i = fm.getBackStackEntryCount() - 1; i > 0; i--) {
    if (!fm.getBackStackEntryAt(i).getName().equalsIgnoreCase(tagname)) {
        fm.popBackStack();
    }
    else
    {
     break;
    }
}

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