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问题描述

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当我从上层片段传递到下层片段时,我试图在片段之间传递数据,但是我不想使用Navigation方法.它为流程历史记录添加了一个新的目的地,但是我想回到上一个片段,恢复它的数据并刷新视图.可以使用NavController和popBackStack方法来做到这一点吗?

I was trying to pass data between fragments while I was passing from upper fragment to down fragment, but I don't want to use the navigate method. It adds a new destination to the process history, but I want back to the previous fragment, restore it data and refresh the view.Is it possible to do it with NavController and popBackStack method?

推荐答案

我也遇到了同样的问题,并且在下面的解决方案中使用了该解决方案,但是我不确定它的正确方法与否.

I also got same problem and I have used below solution which is working, But i am not sure its correct way or not.

val navOptions = NavOptions.Builder().setPopUpTo(R.id.id_of_fragment_one, true).build()
view?.findNavController()?.navigate(R.id.id_of_fragment_one, bundleOf("id" to model), navOptions)

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09-06 19:06