Adding Ripple Effect to Recyclerview Item

Adding Ripple Effect to RecyclerView item

I figured out. The only thing that I had to do is to add this attribute:

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

to the root element of the layout that my RecyclerView adapter inflates like that:

<RelativeLayout xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:paddingTop="8dp"
    android:paddingBottom="8dp"
    android:background="?android:attr/selectableItemBackground"
    tools:background="@drawable/bg_gradient">

    <TextView
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:textSize="17sp"
        android:layout_marginLeft="15dp"
        android:layout_marginStart="15dp"
        android:id="@+id/shoppingListItem"
        android:hint="@string/enter_item_hint"
        android:layout_centerVertical="true"
        android:layout_alignParentLeft="true"
        android:layout_alignParentStart="true"/>

    <CheckBox
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:text="@string/shopping_list_item_checkbox_label"
        android:id="@+id/shoppingListCheckBox"
        android:layout_centerVertical="true"
        android:layout_marginRight="15dp"
        android:layout_alignParentRight="true"
        android:layout_alignParentEnd="true"
        android:checked="false"/>

</RelativeLayout>

Result:

If you are still not able to see ripple effect, add these lines also to the root element of the layout.

android:clickable="true"
android:focusable="true"

Recyclerview item click ripple effect

Adding the android:background="?attr/selectableItemBackground" to the top most parent of your item layout should do the trick.
However in some cases it still misses the animation, adding the android:clickable="true" does it.

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:background="?attr/selectableItemBackground"
    android:orientation="vertical">

    <LinearLayout
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:orientation="vertical"
        android:padding="5dp">

        <TextView
            android:id="@+id/txtTitle"
            style="@style/kaho_panel_sub_heading_textview_style"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

        <TextView
            android:id="@+id/txtDate"
            style="@style/kaho_content_small_textview_style"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content" />

    </LinearLayout>
</LinearLayout>

RecyclerView ripple effect not working

Looking to the LinearLayout parent view background, I saw that the background attribute is not correct (you forgot the android between the question mark and the :attr).

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

Setting Ripple effect to RecyclerView CardView item without having to double tap for an item action

I solved this by totally removing android:focusableInTouchMode = "true" & android:foreground from the CardView, and adding the ripple effect to the root item within the CardView with android:background="?android:attr/selectableItemBackground"

<androidx.cardview.widget.CardView 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:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:layout_margin="@dimen/margin_8dp"
    app:cardBackgroundColor="@color/cyan"
    app:cardCornerRadius="20dp"
    app:cardElevation="5dp">

    <androidx.constraintlayout.widget.ConstraintLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?android:attr/selectableItemBackground"
        android:padding="@dimen/margin_8dp">

            <!-- Underlying views-->

    </androidx.constraintlayout.widget.ConstraintLayout>

</androidx.cardview.widget.CardView>

Delete ripple effect on recycler view item click programmatically

You should let your adapter take in a parameter that determines whether to display the ripple or not.

So start by changing your adapters constructor:

MyAdapter(boolean shouldRipple)

Then you can set the item foreground in onBindViewHolder:

onBindViewHolder {

    itemView.setForeground(...)
}

Ripple effect over a RecyclerView item containing ImageView

add below code to your parent layout

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

if you want custom ripple effect add this ripple_custom.xml in your drawable-v21

<?xml version="1.0" encoding="utf-8"?>
<ripple xmlns:android="http://schemas.android.com/apk/res/android"
    android:color="@color/colorHighlight">

    <item
        android:id="@android:id/mask"
        android:drawable="@color/windowBackground" />
</ripple>

to support older version add ripple_custom.xml in drawable

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android">
    <item android:state_pressed="true">
        <shape android:shape="rectangle">
            <solid android:color="@color/colorHighlight" />
        </shape>
    </item>
    <item>
        <shape android:shape="rectangle">
            <solid android:color="@android:color/transparent" />
        </shape>
    </item>
</selector>

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