Ошибка при завышении класса android.support.v7.widget.CardView ClassNotFoundException

Я пытаюсь раздуть макет, содержащий CardView, но у меня возникают некоторые проблемы.

Беллоу - это состояние ошибки,

E/AndroidRuntime: FATAL EXCEPTION: main
    Process: com.example.hearthstonecards, PID: 14895
    android.view.InflateException: Binary XML file line #8: Binary XML file line #8: Error inflating class android.support.v7.widget.CardView
    Caused by: android.view.InflateException: Binary XML file line #8: Error inflating class android.support.v7.widget.CardView
    Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v7.widget.CardView" on path: DexPathList[[zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/base.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_dependencies_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_resources_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_0_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_1_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_2_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_3_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_4_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_5_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_6_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_7_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_8_apk.apk", zip file "/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/split_lib_slice_9_apk.apk"],nativeLibraryDirectories=[/data/app/com.example.hearthstonecards-Kl_z5hCNi7YCycFhods3Tg==/lib/arm64, /system/lib64]]
        at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
        at android.view.LayoutInflater.createView(LayoutInflater.java:606)
        at android.view.LayoutInflater.createViewFromTag(LayoutInflater.java:790)
        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 com.example.hearthstonecards.adapter.RecyclerViewAdapter.onCreateViewHolder(RecyclerViewAdapter.kt:34)
        at com.example.hearthstonecards.adapter.RecyclerViewAdapter.onCreateViewHolder(RecyclerViewAdapter.kt:15)
        at androidx.recyclerview.widget.RecyclerView$Adapter.createViewHolder(RecyclerView.java:6942)
        at androidx.recyclerview.widget.RecyclerView$Recycler.tryGetViewHolderForPositionByDeadline(RecyclerView.java:6114)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5997)
        at androidx.recyclerview.widget.RecyclerView$Recycler.getViewForPosition(RecyclerView.java:5993)
        at androidx.recyclerview.widget.LinearLayoutManager$LayoutState.next(LinearLayoutManager.java:2227)
        at androidx.recyclerview.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1558)
        at androidx.recyclerview.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1518)
        at androidx.recyclerview.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:613)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayoutStep2(RecyclerView.java:4029)
        at androidx.recyclerview.widget.RecyclerView.dispatchLayout(RecyclerView.java:3746)
        at androidx.recyclerview.widget.RecyclerView.onLayout(RecyclerView.java:4299)
        at android.view.View.layout(View.java:20672)
        at android.view.ViewGroup.layout(ViewGroup.java:6194)

код Kotlin в RecyclerViewAdapter,

class RecyclerViewAdapter(private val recyclerViewItems: ArrayList<HearthstoneCardItemData>, context: Context) :
    RecyclerView.Adapter<RecyclerViewHolder>() {

    private val inflater = LayoutInflater.from(context)

    override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): RecyclerViewHolder {
        val view = inflater.inflate(R.layout.recycler_view_card_item, parent, false)
        return RecyclerViewHolder(view)
    }
}

Ниже приведен макет xml.

<?xml version = "1.0" encoding = "utf-8"?>
<LinearLayout xmlns:android = "http://schemas.android.com/apk/res/android"
              xmlns:card_view = "http://schemas.android.com/apk/res-auto"
              android:layout_width = "match_parent"
              android:layout_height = "wrap_content"
              android:orientation = "vertical">
    <android.support.v7.widget.CardView
            android:id = "@+id/cardView"
            android:layout_width = "match_parent"
            android:layout_height = "150dp"
            card_view:cardCornerRadius = "0dp"
            card_view:cardElevation = "@dimen/margin10"
            card_view:cardMaxElevation = "@dimen/margin10"
            card_view:contentPadding = "@dimen/margin10">
        <RelativeLayout
                android:id = "@+id/relativeLayout"
                android:layout_width = "match_parent"
                android:layout_height = "match_parent"
                android:orientation = "vertical"
                android:layout_gravity = "center">
            <ImageView
                    android:id = "@+id/iv_card_item"
                    android:layout_width = "wrap_content"
                    android:layout_height = "wrap_content"
                    android:layout_centerInParent = "true"
                    android:tint = "@android:color/white"
                    android:padding = "5dp"/>
        </RelativeLayout>

    </android.support.v7.widget.CardView>

</LinearLayout>

Я также добавил правильные зависимости в файл gradle (я думаю)

implementation 'androidx.appcompat:appcompat:1.1.0-alpha02'
implementation 'androidx.recyclerview:recyclerview:1.1.0-alpha02'
implementation 'androidx.cardview:cardview:1.0.0'

Я тоже почистил ребилд, все равно без изменений Любой совет будет принят во внимание!

очевидно android.support.v7.widget.CardView не происходит от androidx

Selvin 19.02.2019 22:55

Похоже на androidx проблему. Его перенесли в другое место. Попробуйте снова добавить карточку в XML, не указывая пакет, а затем разрешите автозаполнение пакета.

EpicPandaForce 19.02.2019 22:59

@EpicPandaForce Вы правы, androidx не выполнил автоматическую миграцию пакета xml cardview.

sapiah 19.02.2019 23:05
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Ответы 3

Вам нужно androidx.cardview.widget.CardView, а не android.support.v7.widget.CardView.

Студия Android не полностью перенесла мое приложение на androidx. Но после изменения имени пакета в макете xml проблема устранена.

Всем спасибо!

Когда я мигрировал на androidx, мой Android Studio мигрировал не полностью. Итак, дело в том, что если вы переходите на androidx, убедитесь, что вы добавили зависимость CardView к вашему build.gradle

build.gradle

dependencies {
    // Other dependencies ...
    implementation 'androidx.cardview:cardview:1.0.0'
}

и в вашем layoutxml

<androidx.cardview.widget.CardView
    android:id = "@+id/card_view"
    android:layout_gravity = "center"
    android:layout_width = "200dp"
    android:layout_height = "200dp"
    card_view:cardCornerRadius = "4dp">

    <TextView
        android:id = "@+id/info_text"
        android:layout_width = "match_parent"
        android:layout_height = "wrap_content"
        android:text = "Text"/>
</androidx.cardview.widget.CardView>

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