从另一个动态模块导航到某个片段

Question

有没有办法从另一个动态模块导航到某个片段而不导航到起始目的地？如果没有，有哪些替代方案？

<fragment
    android:id="@+id/loginFragment"
    android:name="com.example.feature.login.presentation.LoginFragment"
    android:label="LoginFragment">

    <action
        android:id="@+id/actionLoginToHome"
        app:destination="@id/featureHomeNavGraph" />

</fragment>

<include-dynamic
    android:id="@+id/featureHomeNavGraph"
    app:graphResName="feature_home_nav_graph"
    app:moduleName="feature_home" />

虽然此代码工作正常，但它会将我导航到起始目的地，但我需要导航到另一个目的地。

Answer 1

解决方案 1： 导航到特定片段并且不使用 <include-dynamic>

<fragment
    android:id="@+id/profileDetailsFragment"
    android:name="com.example.feature.profiles.presentation.details.ProfileDetailsFragment"
    android:label="Profile Details"
    app:moduleName="feature_profiles" />

解决方案 2：创建一个具有不同起始目标的新图 XML。

Answer 2

为嵌入式导航图执行此操作的一个好方法是使用空白导航片段。你让你的动作转到这个片段，然后向它发送关于下一步导航位置的参数。一些示例代码：

class NavigatorFragment : Fragment() {

    companion object {
        const val REQUEST_PAGE_NAME = "REQUEST_PAGE_NAME"

        const val PAGE_TYPE_ACTIVATE_CARD = "PAGE_TYPE_ACTIVATE_CARD"
        const val PAGE_TYPE_CREDIT_LIMIT = "PAGE_TYPE_CREDIT_LIMIT"
        const val PAGE_TYPE_SCC_HUB = "PAGE_TYPE_SCC_HUB"
        const val PAGE_TYPE_ABOUT_CARD = "about_card"
        const val PAGE_TYPE_MAKE_PAYMENT = "PAGE_TYPE_MAKE_PAYMENT"

        fun createBundle(pageName: String) =
            Bundle().apply {
                putString(REQUEST_PAGE_NAME, pageName)
            }
    }

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        when (arguments?.getString(REQUEST_PAGE_NAME)) {
            PAGE_TYPE_ACTIVATE_CARD -> 
                findNavController().navigate(R.id.to_activateSecuredCard)
        PAGE_TYPE_CREDIT_LIMIT -> 
                findNavController().navigate(R.id.to_creditLimit)
        PAGE_TYPE_ABOUT_CARD -> 
                findNavController().navigate(R.id.to_aboutSecuredCard, arguments)
        PAGE_TYPE_SCC_HUB -> 
                findNavController().navigate(R.id.to_sccHub)
        PAGE_TYPE_MAKE_PAYMENT -> 
                findNavController().navigate(R.id.to_sccMakePayment)
    }
}

override fun onCreateView(inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?): View? {
    val binding: FragmentSecuredCardNavigatorBinding = DataBindingUtil.inflate(inflater, R.layout.fragment_secured_card_navigator, container, false)

    binding.lifecycleOwner = viewLifecycleOwner


    if (findNavController()
                 .currentDestination.toString()
                 .contains(this.javaClass.name)
        ){
        findNavController().popBackStack()
    }

        return binding.root
    }
}

主导航：

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
app:startDestination="@+id/home_dashboard_fragment">

<include app:graph="@navigation/nav_graph_secured_card" />
<!-- rest of navigation graph-->
.....
</navigation>

安全卡片导航：

<?xml version="1.0" encoding="utf-8"?>
<navigation xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:app="http://schemas.android.com/apk/res-auto"
xmlns:tools="http://schemas.android.com/tools"
android:id="@+id/nav_root_secured_card"
app:startDestination="@id/securedCardNavigator">

<fragment
    android:id="@+id/securedCardNavigator"
    android:name="com.greendotcorp.securedcard.fragment.NavigatorFragment">
    <action
        android:id="@+id/to_activateSecuredCard"
        app:destination="@+id/activateSecuredCard"

        app:popUpTo="@+id/securedCardNavigator"
        app:popUpToInclusive="true" />

</fragment>
</navigation>

导航到安全卡片导航：

findNavController().navigate(R.id.nav_root_secured_card, NavigatorFragment.createBundle(NavigatorFragment.PAGE_TYPE_SCC_HUB))

从另一个动态模块导航到某个片段

Navigate to certain fragment from another dynamic module

android

multi-module

android-navigation