Android导航-在对第二个片段进行深度链接导航之后，在同一图中但从另一个导航图中打开第一个片段 [英] Android Navigation - After deeplink navigation to second fragment, open first fragment in the same graph, but from another navigation graph

问题描述

在我的导航中，我有这样的东西:

In my navigation, I have something like this:

1. 当我从深层链接中打开registrationFragment(在entry_graph中)并完成注册时，将导航至main_graph(MainFragment).

2. 从那里，我可以访问menuFragment并单击logOut，这将调用:

1. When I open registrationFragment (in entry_graph) from a deep-link, and finish registration, I am navigated to main_graph (MainFragment).

2. From there, I can access to menuFragment and click on logOut, which calls:

MainFragmentDirections.actionMainFragmentToEntryFragment()

它将打开registrationFragment而不是loginFragment.我不希望这样，因为loginFragment是该图中的主片段.

It opens the registrationFragment instead of loginFragment. I do not expect that since loginFragment is the home fragment on that graph.

当我进行类似的导航但不使用深层链接时，它会按预期运行，它将打开该图中的第一个片段，但是通过这种深层链接流程，它将始终打开由深层链接打开的片段.链接，在导航图中的位置没有任何关系.

When I have similar navigation but not using deep-links, it works as it should, it opens the first fragment in that graph, but with this deep-link flow, it always opens the fragment that was opened by the deep-link, no mater where it is positioned in the navigation graph.

我已经在SO和Web上搜索了解决方案，但是在任何地方都找不到相同的问题.

I have searched for solutions on SO and web, but could not find the same problem anywhere.

我尝试过手动将其从后堆栈和类似的解决方案中删除，但是我无法成功，它总是打开由深度链接首先打开的片段.

I have tried removing it manually from back-stack and similar solutions but I could not succeed, it always opens the fragment that was opened by the deep-link in first place.

我正在使用导航版本2.1.0，但是在最新的2.2.0版本上对此流进行了测试，并且其行为相同.

I am using navigation version 2.1.0, but tested this flow on the currently latest 2.2.0 and it behaves the same.

有人知道这种导航流程是否有解决方案吗?

Does anybody knows if there is a solution for this navigating flow?

推荐答案

如何在步骤2中导航?我尝试了相同的流程，并且在此处.

How do navigate in step#2? I tried the same flow and it worked when I used the code described here.

基本上这是代码

PendingIntent pendingIntent = new NavDeepLinkBuilder(context)
.setGraph(R.navigation.nav_graph)
.setDestination(R.id.android)
.setArguments(args)
.createPendingIntent();

如文档中所述，当您使用Intent进行导航时，将重置后向堆栈，并使用每个先前图形的 home片段进行填充. 只需确保在nav_graph xml中正确正确地描述了所需的后台堆栈-每个 home片段都会打开一个新的缩进.

As described in the doc, when you navigate using intent, the back-stack is reset, and populated with the home fragment of each previous graph. Just make sure the required back-stack actually described correctly in the nav_graph xml - each home fragment opens a new indent.

希望它对您有用:)

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