错误膨胀类 android.fragment.app.FragmentContainerView，有人可以告诉我我错过了什么

Question

我正在努力让 Google Place API 出现在 CardView 中。

我正在查看的特定代码来自 GitHub，似乎对其他人有用，但我不明白为什么它会向我抛出错误。

这是我得到的错误：

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.rizwanqureshi.kevstaxiscanterbury, PID: 6818
    java.lang.RuntimeException: Unable to start activity ComponentInfo{com.rizwanqureshi.kevstaxiscanterbury/com.rizwanqureshi.kevstaxiscanterbury.CustomerMapsActivity}: android.view.InflateException: Binary XML file line #50 in com.rizwanqureshi.kevstaxiscanterbury:layout/activity_customer_maps: Binary XML file line #50 in com.rizwanqureshi.kevstaxiscanterbury:layout/activity_customer_maps: Error inflating class android.fragment.app.FragmentContainerView
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3270)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
        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$H.handleMessage(ActivityThread.java:2016)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
        at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: android.view.InflateException: Binary XML file line #50 in com.rizwanqureshi.kevstaxiscanterbury:layout/activity_customer_maps: Binary XML file line #50 in com.rizwanqureshi.kevstaxiscanterbury:layout/activity_customer_maps: Error inflating class android.fragment.app.FragmentContainerView
     Caused by: android.view.InflateException: Binary XML file line #50 in com.rizwanqureshi.kevstaxiscanterbury:layout/activity_customer_maps: Error inflating class android.fragment.app.FragmentContainerView
     Caused by: java.lang.ClassNotFoundException: android.fragment.app.FragmentContainerView
        at java.lang.Class.classForName(Native Method)
        at java.lang.Class.forName(Class.java:454)
        at android.view.LayoutInflater.createView(LayoutInflater.java:815)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:1006)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:961)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:1123)
        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1084)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:1126)
        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1084)
        at android.view.LayoutInflater.rInflate(LayoutInflater.java:1126)
        at android.view.LayoutInflater.rInflateChildren(LayoutInflater.java:1084)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:682)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:534)
        at android.view.LayoutInflater.inflate(LayoutInflater.java:481)
        at com.android.internal.policy.PhoneWindow.setContentView(PhoneWindow.java:438)
        at android.app.Activity.setContentView(Activity.java:3324)
        at com.rizwanqureshi.kevstaxiscanterbury.CustomerMapsActivity.onCreate(CustomerMapsActivity.java:116)
        at android.app.Activity.performCreate(Activity.java:7802)
        at android.app.Activity.performCreate(Activity.java:7791)
        at android.app.Instrumentation.callActivityOnCreate(Instrumentation.java:1299)
        at android.app.ActivityThread.performLaunchActivity(ActivityThread.java:3245)
        at android.app.ActivityThread.handleLaunchActivity(ActivityThread.java:3409)
        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$H.handleMessage(ActivityThread.java:2016)
        at android.os.Handler.dispatchMessage(Handler.java:107)
        at android.os.Looper.loop(Looper.java:214)
E/AndroidRuntime:     at android.app.ActivityThread.main(ActivityThread.java:7356)
        at java.lang.reflect.Method.invoke(Native Method)
        at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:492)
        at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:930)
     Caused by: java.lang.ClassNotFoundException: Didn't find class "android.fragment.app.FragmentContainerView" on path: DexPathList[[zip file "/data/app/com.rizwanqureshi.kevstaxiscanterbury-Nkg-1mQCfbE8I1MoJKHQuA==/base.apk"],nativeLibraryDirectories=[/data/app/com.rizwanqureshi.kevstaxiscanterbury-Nkg-1mQCfbE8I1MoJKHQuA==/lib/x86, /system/lib, /system/product/lib]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:196)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
            ... 32 more

主要结论是存在错误膨胀类 android.fragment.app.FragmentContainerView 并且问题出在 XML 的第 50 行。

这是 XML：

<FrameLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    tools:context=".CustomerLogin" >


    <androidx.fragment.app.FragmentContainerView
        android:id="@+id/map"
        android:name="com.google.android.gms.maps.SupportMapFragment"
        android:layout_width="match_parent"
        android:layout_height="match_parent"/>

    <RelativeLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/buttons">
            <Button
                android:layout_weight="1"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:id="@+id/logout"
                android:text="logout"
                tools:ignore="ButtonStyle" />
            <Button
                android:layout_weight="1"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:id="@+id/history"
                android:text="history"
                tools:ignore="ButtonStyle" />
            <Button
                android:layout_weight="1"
                android:layout_width="0dp"
                android:layout_height="wrap_content"
                android:id="@+id/settings"
                android:text="Settings"
                tools:ignore="ButtonStyle" />
        </LinearLayout>

        <androidx.cardview.widget.CardView
            android:layout_below="@+id/buttons"
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:layout_margin="20sp">



//***LINE 50 WHERE THE ERROR IS***



            <android.fragment.app.FragmentContainerView
                android:id="@+id/place_autocomplete_fragment"
                android:layout_width="match_parent"
                android:layout_height="match_parent"
                tools:ignore="ExtraText">
                android:name="com.google.android.gms.location.places.ui.PlaceAutocompleteFragment"
            </android.fragment.app.FragmentContainerView>
        </androidx.cardview.widget.CardView>
    </RelativeLayout>

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:layout_gravity="bottom">
        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="wrap_content"
            android:id="@+id/driverInfo"
            android:layout_gravity="bottom"
            android:orientation="horizontal"
            android:background="@android:color/white"
            android:visibility="gone">
            <LinearLayout
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:orientation="vertical"
                android:paddingLeft="40sp">
            </LinearLayout>
        </LinearLayout>
        <LinearLayout
            android:background="@android:color/white"
            android:orientation="vertical"
            android:layout_width="match_parent"
            android:layout_height="wrap_content">
        </LinearLayout>
    </LinearLayout>
</FrameLayout>

所以我猜 FragmentContainerView 有问题？但是我在代码中没有收到任何错误，Google 上也没有任何提示。

我觉得也许有些东西已经过时而不是完全不正确，但我没有任何线索。

感谢您提供任何意见。

Answer 1

只需尝试在您的导航 xml 中定义您的 startDestination 即可！

Answer 2

您应该实现新的androidx.fragment依赖项才能使用FragmentContainerView. 从 1.2.0 版本开始就已经添加了。你可以在这里查看

implementation "androidx.fragment:fragment:1.2.5"

Answer 3

就我而言，我有一个用作参数的模型，但我没有实现可序列化和可打包的实现。

Answer 4

这个问题也是为我创建的。原因是两个错误。

1.我没有在导航图中添加startDestination。

2.我没有在 MainActivitey 中添加 @AndroidEntryPoint 注解。

Answer 5

仅当您将 ProGuard 和 R8 添加到项目中后，才会出现此错误。要修复此问题，请在 中添加以下两行proguard-rule.pro：

-keepnames class androidx.navigation.fragment.NavHostFragment
-keep class * extends androidx.fragment.app.Fragment{}

Answer 6

navGraph对我来说，这是属性的类路径中的片段之一中的拼写错误android:name。为片段类添加错误的路径不会提供编译时错误，而是会引发android.view.InflateException...Error inflating class android.fragment.app.FragmentContainerView

因此，请确保您的片段有正确的打包路径android:name

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

    <fragment
        android:id="@+id/mainFragment"
        android:name="com.example.android....MainFragment"  // <<<< This must be a correct path 
        android:label="main_fragment"
    </fragment>

</navigation>