RecyclerView Adding Ripple Effect to RecyclerView item

实现recyclerView item长按的水波纹效果

<?xml version="1.0" encoding="utf-8"?>
<layout 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">

    <data>

        <variable
            name="m"
            type="cn.lisok.rf.model.SettingItemModel" />
    </data>

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="?android:attr/selectableItemBackground"
        android:clickable="true"
        android:focusable="true"
        android:paddingStart="40dp"
        android:paddingEnd="40dp"
        android:paddingBottom="8dp">

        <TextView
            android:id="@+id/textView"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_marginTop="24dp"
            android:layout_marginBottom="20dp"
            android:text="@{m.title,default=无障碍权限}"
            android:textColor="@color/black" />

        <TextView
            android:id="@+id/textView2"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignTop="@id/textView"
            android:layout_marginTop="24dp"
            android:maxWidth="250dp"
            android:text="@{m.desc,default=`依次点击:无障碍 > 已下载的应用 > ❤️真实好友`}"
            android:visibility="@{m.desc == null ? android.view.View.GONE : android.view.View.VISIBLE}" />

        <com.google.android.material.switchmaterial.SwitchMaterial
            android:id="@+id/power"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentEnd="true"
            android:layout_centerVertical="true"
            android:layout_marginTop="8dp"
            android:layout_marginEnd="4dp"
            android:checked="true"
            android:visibility="@{m.showSwitch? android.view.View.VISIBLE: android.view.View.GONE}" />
    </RelativeLayout>
</layout>

核心三行代码 添加给item的父布局

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

引用
1.Adding Ripple Effect to RecyclerView item: https://stackoverflow.com/questions/30931889/adding-ripple-effect-to-recyclerview-item