Android导航组件:java.lang.IllegalStateException:恢复期间的未知目标 [英] Android Navigation Component: java.lang.IllegalStateException: unknown destination during restore
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问题描述
我正在使用Android的AAC导航组件，并且已按照我的帖子中的说明为我的登录流程实现了条件导航:导航架构组件-登录屏幕
I'm using Android's AAC Navigation Component and have implemented conditional navigation for my login flow as described in this post: Navigation Architecture Component - Login screen
现在一切似乎都可以正常工作，但是在导航到登录屏幕并成功登录然后导航回到主屏幕后，旋转时应用崩溃，并显示以下错误:
Now everything appears to be working, however after being navigated to the login screen and successfully logging in then navigating back to the main screen, on rotation the app crashes with the following error:
--------- beginning of crash
2019-02-02 13:08:28.423 6030-6030/uk.co.victoriajanedavis.chatapp E/AndroidRuntime: FATAL EXCEPTION: main
Process: uk.co.victoriajanedavis.chatapp, PID: 6030
java.lang.RuntimeException: Unable to start activity ComponentInfo{uk.co.victoriajanedavis.chatapp/uk.co.victoriajanedavis.chatapp.presentation.ui.main.MainActivity}: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class fragment
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2778)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4699)
at android.app.ActivityThread.-wrap18(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1595)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
Caused by: android.view.InflateException: Binary XML file line #10: Binary XML file line #10: Error inflating class fragment
Caused by: android.view.InflateException: Binary XML file line #10: Error inflating class fragment
Caused by: java.lang.IllegalStateException: unknown destination during restore: uk.co.victoriajanedavis.chatapp:id/friendsFragment
at androidx.navigation.NavController.onGraphCreated(NavController.java:483)
at androidx.navigation.NavController.setGraph(NavController.java:459)
at androidx.navigation.NavController.setGraph(NavController.java:424)
at androidx.navigation.NavController.setGraph(NavController.java:406)
at androidx.navigation.fragment.NavHostFragment.onCreate(NavHostFragment.java:226)
at androidx.fragment.app.Fragment.performCreate(Fragment.java:2414)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:844)
at androidx.fragment.app.FragmentManagerImpl.moveToState(FragmentManagerImpl.java:1129)
at androidx.fragment.app.FragmentManagerImpl.onCreateView(FragmentManagerImpl.java:3132)
at androidx.fragment.app.FragmentController.onCreateView(FragmentController.java:133)
at androidx.fragment.app.FragmentActivity.dispatchFragmentsOnCreateView(FragmentActivity.java:345)
at androidx.fragment.app.FragmentActivity.onCreateView(FragmentActivity.java:324)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:780)
at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:730)
at android.view.LayoutInflater.rInflate(LayoutInflater.java:863)
at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:824)
at android.view.LayoutInflater.inflate(LayoutInflater.java:515)
at android.view.LayoutInflater.inflate(LayoutInflater.java:423)
at android.view.LayoutInflater.inflate(LayoutInflater.java:374)
at androidx.appcompat.app.AppCompatDelegateImpl.setContentView(AppCompatDelegateImpl.java:469)
at androidx.appcompat.app.AppCompatActivity.setContentView(AppCompatActivity.java:141)
at uk.co.victoriajanedavis.chatapp.presentation.ui.main.MainActivity.onCreate(MainActivity.kt:22)
at android.app.Activity.performCreate(Activity.java:7009)
at android.app.Activity.performCreate(Activity.java:7000)
at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1214)
at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:2731)
at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:2856)
at android.app.ActivityThread.handleRelaunchActivity(ActivityThread.java:4699)
at android.app.ActivityThread.-wrap18(Unknown Source:0)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1595)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:164)
at android.app.ActivityThread.main(ActivityThread.java:6494)
at java.lang.reflect.Method.invoke(Native Method)
2019-02-02 13:08:28.423 6030-6030/uk.co.victoriajanedavis.chatapp E/AndroidRuntime: at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:438)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:807)
这是我的nav_graph.xml(负责登录流程的ID是@ + id/action_friendsFragment_to_loginFlowGraph，@ + id/action_loginFragment_to_chatFlowGraph，@ + id/action_signupFragmentFragment_to_chatFlowGraph):
Here is my nav_graph.xml (the id's responsible for the login flow are @+id/action_friendsFragment_to_loginFlowGraph, @+id/action_loginFragment_to_chatFlowGraph, @+id/action_signupFragment_to_chatFlowGraph):
<?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_graph"
app:startDestination="@id/chatFlowGraph">
<!-- Chat Flow (nested graph) -->
<navigation android:id="@+id/chatFlowGraph"
app:startDestination="@id/friendsFragment">
<fragment
android:id="@+id/friendsFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.friends.FriendRequestsToolbarFragment"
android:label="fragment_friends"
tools:layout="@layout/fragment_friend_requests_toolbar">
<action
android:id="@+id/action_friendsFragment_to_loginFlowGraph"
app:destination="@id/loginFlowGraph"
app:popUpTo="@id/chatFlowGraph"
app:popUpToInclusive="true"
app:enterAnim="@anim/slide_in_bottom"
app:exitAnim="@anim/fade_out"
app:popEnterAnim="@anim/fade_in"
app:popExitAnim="@anim/slide_out_bottom"/>
<action
android:id="@+id/action_friendsFragment_to_chatFragment"
app:destination="@id/chatFragment"/>
<action
android:id="@+id/action_friendsFragment_to_friendRequestsFragment"
app:destination="@id/friendRequestsFragment"
app:enterAnim="@anim/grow_in_top_right"
app:exitAnim="@anim/fade_out"
app:popEnterAnim="@anim/fade_in"
app:popExitAnim="@anim/grow_out_top_right"/>
</fragment>
<fragment
android:id="@+id/chatFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.chat.ChatFragment"
android:label="fragment_chat"
tools:layout="@layout/fragment_chat" />
</navigation>
<!-- Login/Register Flow (nested graph) -->
<navigation android:id="@+id/loginFlowGraph"
app:startDestination="@id/loginFragment">
<fragment
android:id="@+id/loginFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.login.LoginFragment"
android:label="fragment_login"
tools:layout="@layout/fragment_login">
<action
android:id="@+id/action_loginFragment_to_chatFlowGraph"
app:destination="@id/chatFlowGraph"
app:popUpTo="@id/loginFlowGraph"
app:popUpToInclusive="true"/>
<action
android:id="@+id/action_loginFragment_to_signupFragment"
app:destination="@id/signupFragment"
app:enterAnim="@anim/slide_in_right"
app:exitAnim="@anim/slide_out_left"
app:popEnterAnim="@anim/slide_in_left"
app:popExitAnim="@anim/slide_out_right"/>
</fragment>
<fragment
android:id="@+id/signupFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.signup.SignupFragment"
android:label="fragment_signup"
tools:layout="@layout/fragment_signup">
<action
android:id="@+id/action_signupFragment_to_chatFlowGraph"
app:destination="@id/chatFlowGraph"
app:popUpTo="@id/loginFlowGraph"
app:popUpToInclusive="true"/>
</fragment>
</navigation>
<!-- FriendRequestsFragment -->
<fragment
android:id="@+id/friendRequestsFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.friendrequests.FriendRequestsFragment"
android:label="fragment_friend_requests"
tools:layout="@layout/fragment_friend_requests">
<action
android:id="@+id/action_friendRequestsFragment_to_sendFriendRequestFragment"
app:destination="@id/sendFriendRequestFragment"
app:enterAnim="@anim/slide_in_bottom"
app:exitAnim="@anim/fade_out"
app:popEnterAnim="@anim/fade_in"
app:popExitAnim="@anim/slide_out_bottom"/>
</fragment>
<!-- SendFriendRequestFragment -->
<fragment
android:id="@+id/sendFriendRequestFragment"
android:name="uk.co.victoriajanedavis.chatapp.presentation.ui.friendrequests.sent.send.SendFriendRequestFragment"
android:label="fragment_send_friend_request"
tools:layout="@layout/fragment_send_friend_request" />
</navigation>
使用最新的导航组件版本1.0.0-alpha11
using the latest navigation component version 1.0.0-alpha11
推荐答案
此错误已在导航组件的1.0.0-beta01版本中修复.
This bug was fixed in version 1.0.0-beta01 of the navigation component.
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