导航到FAB单击上的片段(导航架构组件) [英] Navigate to fragment on FAB click (Navigation Architecture Components)

问题描述

我不知道如何使用新的导航体系结构组件从主屏幕(具有FloatingActionButton附加到BottomAppBar的主屏幕)导航到没有应用栏的另一个屏幕.

I have no idea how to, using the new navigation architecture component, navigate from my main screen (with a FloatingActionButton attatched to a BottomAppBar) to another screen without the app bar.

当我单击晶圆厂时，我希望我的下一个屏幕(碎片?)从右侧滑入.问题是我将BottomAppBar放在哪里?如果将其放在MainActivity中，则会出现FloatingActionButton没有设置NavController的问题.我也无法将BottomAppBar放入片段中.我很茫然.

When I click the fab I want my next screen (fragment?) to slide in from the right. The problem is where do I put my BottomAppBar? If I put it in my MainActivity then I have the issue of the FloatingActionButton not having a NavController set. I also cannot put my BottomAppBar in my Fragment. I am at a loss.

推荐答案

今天遇到了这个问题，我发现有一个简单而优雅的解决方案.

Ran into this issue today and I found out that there is a simple and elegant solution for it.

val navController = findNavController(R.id.navHostFragment)
Navigation.setViewNavController(fabAdd, navController)
fabAdd.setOnClickListener {
   navController.navigate(R.id.addSymbolFragment)
}  

这将照顾导航.然后，您必须控制Activity内部BottomAppBar的可见性.

This takes care of the navigation. Then you must control the visibility of your BottomAppBar inside your Activity.

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