Touch feedback with RecyclerView and CardView

Question

I would love to enable touch feedback for my Open-Source library.

I've created a RecyclerView and a CardView. The CardView contains different areas with different onClick actions. Now I would love to trigger the Ripple effect if a user clicks anywhere in the card, but I'm not able to achieve this behavior.

This is my listitem, You can find it on GitHub too: https://github.com/mikepenz/AboutLibraries/blob/master/library/src/main/res/layout/listitem_opensource.xml

<RelativeLayout
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:clickable="true"
    android:background="@drawable/button_rect_normal"/>

<LinearLayout
    android:padding="6dp"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical">

    <LinearLayout
        android:gravity="center_vertical"
        android:paddingLeft="8dp"
        android:paddingRight="8dp"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/libraryName"
            android:textColor="@color/title_openSource"
            android:textSize="@dimen/textSizeLarge_openSource"
            android:textStyle="normal"
            android:layout_width="0dp"
            android:layout_weight="5"
            android:layout_height="wrap_content"
            android:ellipsize="end"
            android:maxLines="1"/>

        <TextView
            android:id="@+id/libraryCreator"
            android:textColor="@color/text_openSource"
            android:textStyle="normal"
            android:layout_width="0dp"
            android:layout_weight="2"
            android:layout_height="wrap_content"
            android:layout_marginTop="2dp"
            android:gravity="right"
            android:maxLines="2"
            android:textSize="@dimen/textSizeSmall_openSource"/>
    </LinearLayout>

    <View
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:layout_marginTop="4dp"
        android:background="@color/dividerLight_openSource"/>

    <TextView
        android:id="@+id/libraryDescription"
        android:textSize="@dimen/textSizeSmall_openSource"
        android:textStyle="normal"
        android:textColor="@color/text_openSource"
        android:padding="8dp"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:maxLines="20">
    </TextView>

    <View
        android:id="@+id/libraryBottomDivider"
        android:layout_width="match_parent"
        android:layout_height="1px"
        android:layout_marginTop="4dp"
        android:background="@color/dividerLight_openSource"/>

    <LinearLayout
        android:id="@+id/libraryBottomContainer"
        android:gravity="center_vertical"
        android:paddingLeft="8dp"
        android:paddingTop="4dp"
        android:paddingRight="8dp"
        android:orientation="horizontal"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

        <TextView
            android:id="@+id/libraryVersion"
            android:textColor="@color/text_openSource"
            android:textStyle="normal"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:gravity="left"
            android:maxLines="1"
            android:textSize="@dimen/textSizeSmall_openSource"/>

        <TextView
            android:id="@+id/libraryLicense"
            android:textColor="@color/text_openSource"
            android:textStyle="normal"
            android:layout_width="0dp"
            android:layout_weight="1"
            android:layout_height="wrap_content"
            android:gravity="right"
            android:maxLines="1"
            android:textSize="@dimen/textSizeSmall_openSource"/>
    </LinearLayout>
</LinearLayout>

And the onClick is set on 3 parts of this layout. libraryCreator, libraryDescription, and libraryBottomContainer.

I hope someone got an idea what is going wrong here.

Thanks for your help.

Answer 1

Assuming you are using Material/Appcompat theme and Lollipop,I got this to work by making the CardView have the following attributes:

android:focusable="true"
android:clickable="true"
android:foreground="?android:attr/selectableItemBackground"

Answer 2

CardLayout is just a subclass of ViewGroup, So setting:

android:background="?android:attr/selectableItemBackground"

should do the trick.

UPDATE:

(looks like you are trying to use a custom ripple color.)

Try using a ripple drawable with custom color as the background (I haven't used this, So I cannot verify this behavior.) see: the documentation or this question to get you started.

Answer 3

for me:

android:background="?android:attr/selectableItemBackground"

made it finally work. see background of recyclerView / content behind the item, and also see the ripple effect used with recyclerView.