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Using CardView as Layout Parent for Swipeable item adapter causes ClassCastException #21

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tunjid opened this issue Apr 13, 2015 · 1 comment
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Using CardView as Layout Parent for Swipeable item adapter causes ClassCastException #21

tunjid opened this issue Apr 13, 2015 · 1 comment

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@tunjid
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tunjid commented Apr 13, 2015

Thanks for your library, it's fantastic! There's however a ClassCastException when a CardView is used as the parent layout for the swipeable item adapter. Full log output and layout xml follow.

04-12 21:43:18.146  24070-24070/com.myfab5.mobile.myfab5 W/dalvikvm﹕ threadid=1: thread exiting with uncaught exception (group=0x4169dd40)
04-12 21:43:18.162  24070-24070/com.myfab5.mobile.myfab5 E/AndroidRuntime﹕ FATAL EXCEPTION: main
    Process: com.myfab5.mobile.myfab5, PID: 24070
    java.lang.ClassCastException: android.graphics.drawable.ColorDrawable cannot be cast to android.support.v7.widget.RoundRectDrawableWithShadow
            at android.support.v7.widget.CardViewEclairMr1.getShadowBackground(CardViewEclairMr1.java:159)
            at android.support.v7.widget.CardViewEclairMr1.getMinWidth(CardViewEclairMr1.java:150)
            at android.support.v7.widget.CardView.onMeasure(CardView.java:181)
            at android.view.View.measure(View.java:16537)
            at android.support.v7.widget.RecyclerView$LayoutManager.measureChildWithMargins(RecyclerView.java:5555)
            at android.support.v7.widget.LinearLayoutManager.layoutChunk(LinearLayoutManager.java:1332)
            at android.support.v7.widget.LinearLayoutManager.fill(LinearLayoutManager.java:1269)
            at android.support.v7.widget.LinearLayoutManager.onLayoutChildren(LinearLayoutManager.java:523)
            at android.support.v7.widget.RecyclerView.dispatchLayout(RecyclerView.java:1988)
            at android.support.v7.widget.RecyclerView.onLayout(RecyclerView.java:2237)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.RelativeLayout.onLayout(RelativeLayout.java:1055)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.support.v4.view.ViewPager.onLayout(ViewPager.java:1594)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
            at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
            at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.LinearLayout.setChildFrame(LinearLayout.java:1671)
            at android.widget.LinearLayout.layoutVertical(LinearLayout.java:1525)
            at android.widget.LinearLayout.onLayout(LinearLayout.java:1434)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.widget.FrameLayout.layoutChildren(FrameLayout.java:453)
            at android.widget.FrameLayout.onLayout(FrameLayout.java:388)
            at android.view.View.layout(View.java:14857)
            at android.view.ViewGroup.layout(ViewGroup.java:4643)
            at android.view.ViewRootImpl.per

<?xml version="1.0" encoding="utf-8"?>
<android.support.v7.widget.CardView
    android:id="@+id/card_view"
    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:layout_gravity="center"
    android:layout_marginBottom="@dimen/quarter_margin"
    android:layout_marginLeft="@dimen/quarter_margin"
    android:layout_marginRight="@dimen/quarter_margin"
    card_view:cardCornerRadius="4dp">

    <LinearLayout
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        android:orientation="horizontal"
        android:weightSum="10">

        <RelativeLayout
            android:id="@+id/container"
            android:layout_width="0px"
            android:layout_height="match_parent"
            android:layout_weight="9"
            android:background="?attr/selectableItemBackground"
            android:orientation="vertical">

            <TextView
                android:id="@+id/text_view"
                android:layout_width="44dp"
                android:layout_height="44dp"
                android:layout_alignParentTop="true"
                android:layout_marginBottom="4dp"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_marginTop="4dp"
                android:background="@drawable/circle_background"
                android:gravity="center"
                android:padding="3dp"
                android:text="@string/business_ranking"
                android:textColor="@color/white"
                android:textSize="18sp" />

            <TextView
                android:id="@+id/text_view_2"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:layout_alignBaseline="@+id/text_view"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_marginTop="4dp"
                android:layout_toRightOf="@id/text_view"
                android:text="@string/text_view_2"
                android:textColor="@color/black"
                android:textSize="18sp" />

            <ImageView
                android:id="@+id/image_view"
                android:layout_width="@dimen/inline_photo_size"
                android:layout_height="@dimen/inline_photo_size"
                android:layout_alignParentLeft="true"
                android:layout_below="@+id/text_view"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_marginTop="@dimen/activity_vertical_margin"
                android:background="@drawable/image_placeholder" />

            <TextView
                android:id="@+id/text_view_3"
                android:layout_width="match_parent"
                android:layout_height="wrap_content"
                android:layout_alignTop="@+id/image_view"
                android:layout_marginLeft="@dimen/activity_horizontal_margin"
                android:layout_toRightOf="@+id/image_view"
                android:gravity="left"
                android:text="@string/hello_world"
                android:textSize="14sp" />
        </RelativeLayout>

        <ImageView
            android:id="@+id/drag_handle"
            android:layout_width="0px"
            android:layout_height="match_parent"
            android:layout_weight="1"
            android:src="@drawable/ic_reorder_grey_600_24dp" />
    </LinearLayout>
</android.support.v7.widget.CardView>
@tunjid
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tunjid commented Apr 13, 2015

After digging around, I see this has to do with CardView not having an API to set backgrounds with xml and the android.support.v7.widget.RoundRectDrawableWithShadow class has protected access.

I've fallen back to using a LinearLayout with a 9 patch image for the shadow.

@tunjid tunjid closed this as completed Apr 13, 2015
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@tunjid