相关疑难解决方法(0)

当androidx.fragment.app.FragmentContainerView用作 navHost 而不是常规fragment应用程序时，在方向更改后无法导航到目的地。

我收到以下错误： java.lang.IllegalStateException: no current navigation node

是否有我应该知道的正确使用它的问题，或者我使用导航组件的方式不正确？

带有视图的简单活动 xml：

...
    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/nav_host_fragment"
        android:name="androidx.navigation.fragment.NavHostFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        app:defaultNavHost="true"
        app:layout_behavior="@string/appbar_scrolling_view_behavior"
        app:navGraph="@navigation/nav_simple" />
...

导航代码：

<?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_legislator.xml"
    app:startDestination="@id/initialFragment">

    <fragment
        android:id="@+id/initialFragment"
        android:name="com.example.fragmenttag.InitialFragment"
        android:label="Initial Fragment"
        tools:layout="@layout/initial_fragment">
        <action
            android:id="@+id/action_initialFragment_to_destinationFragment"
            app:destination="@id/destinationFragment" />
    </fragment>
    <fragment
        android:id="@+id/destinationFragment"
        android:name="com.example.fragmenttag.DestinationFragment"
        android:label="Destination Fragment"
        tools:layout="@layout/destination_fragment" />

</navigation>

这是一个 github 存储库，您可以在其中轻松重现错误：https : //github.com/dmytroKarataiev/navHostBug

在使用android.arch.navigation:navigation-fragment-ktx:1.0.0-alpha01目标和编译sdk 27 将NavigationComponent()集成到我的项目中后使用proguard时遇到此崩溃

    2018-05-16 12:13:14.044 24573-24573/com.mypackage.myapp.x E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.mypackage.myapp.x, PID: 24573
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.mypackage.myapp.x/com.mypackage.myapp.MainActivity}: android.view.InflateException: Binary XML file line #16: Binary XML file line #16: Error inflating class fragment
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2925)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3060)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:78)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:110)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:70)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1800)
        at android.os.Handler.dispatchMessage(Handler.java:106)
        at android.os.Looper.loop(Looper.java:164)
        at android.app.ActivityThread.main(ActivityThread.java:6649)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:826)
     Caused by: android.view.InflateException: Binary XML file line #16: Binary XML file line #16: Error inflating class fragment
     Caused …

我将导航组件更新到2.3.2版本。

在2.3.1版本工作正常

我正在浏览文档，但没有找到有关错误或组件中任何更新的任何内容

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.m.marketplace, PID: 16698
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.m.marketplace/com.m.marketplace.ui.MainActivity}: android.view.InflateException: Binary XML file line #11 in com.m.marketplace:layout/activity_main: Binary XML file line #11 in com.m.marketplace:layout/activity_main: Error inflating class androidx.fragment.app.FragmentContainerView
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3311)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3460)
        at android.app.servertransaction.LaunchActivityItem.execute(LaunchActivityItem.java:83)
        at android.app.servertransaction.TransactionExecutor.executeCallbacks(TransactionExecutor.java:135)
        at android.app.servertransaction.TransactionExecutor.execute(TransactionExecutor.java:95)
        at android.app.ActivityThread$H.handleMessage(ActivityThread.java:2047)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:224)
        at android.app.ActivityThread.main(ActivityThread.java:7590)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:539)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:950)
     Caused by: android.view.InflateException: Binary XML file line #11 in com.m.marketplace:layout/activity_main: Binary XML file line #11 in com.m.marketplace:layout/activity_main: Error inflating …

Android Studio 提供替换片段<fragment>中的标签的功能Google Maps。在我没有的应用程序中Navigation，但可能会添加。我应该用 替换<fragment>标签<FragmentContainerView>吗？

查看https://proandroiddev.com/android-fragments-fragmentcontainerview-292f393f9ccf我发现我们也可以替换<FrameLayout>为<androidx.fragment.app.FragmentContainerView>. 我们应该这样做吗？