CODEWITHSUNDEEP
androidandroid-layoutandroid-activitykotlinandroid-cardview
sapiah
sapiah

Reputation: 51

Error inflating class android.support.v7.widget.CardView ClassNotFoundException

I'm trying to inflate a layout that contains a CardView but I'm dealing with some issues.

Bellow is the error being state, 

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)

Kotlin code within the 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)
    }
}

Below is the xml layout.

<?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>

I've also added the right dependencies within the gradle file (i think)

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

I've cleaned re-build as well, still no change Any advice would be appreciated!

Upvotes: 3

Views: 5685

Answers (3)

Ashfaque
Ashfaque

Reputation: 1284

When I migrated to androidx my Android Studio did not completely migrate. So the point is that if you are migrating to androidx, ensure that you add CardView dependency to your build.gradle

build.gradle

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

and in your layout xml

<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>

Upvotes: 2

sapiah
sapiah

Reputation: 51

Android studio didn't completely migrate my app to androidx. But after changing the package name within the xml layout fixed the issue.

Thanks everyone!

Upvotes: 1

Jared Burrows
Jared Burrows

Reputation: 55535

You need androidx.cardview.widget.CardView not android.support.v7.widget.CardView.

Upvotes: 10

Related Questions