This content originally appeared on DEV Community and was authored by rrtutors
We know how to user Recyclerview in android and we have created Recyclerview Item Click events in the previous post.
In this post we will learn add CardView to Recyclerview
What is CardView?
CardView is a Material Widget which acts ad Framelayout with adding extra features like background color, round the corners, elevation and shadow to the background
Step 1: Create Android application in Android studio
Step 2: Add Recyclerview inside xml file
<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
xmlns:app="http://schemas.android.com/apk/res-auto"
android:layout_width="match_parent"
android:layout_height="match_parent"
tools:context=".recyclerview.RecycleRippleEffect">
<androidx.recyclerview.widget.RecyclerView
android:layout_width="0dp"
android:layout_height="0dp"
android:id="@+id/recyclerView"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toStartOf="parent"
app:layout_constraintBottom_toBottomOf="parent" />
</androidx.constraintlayout.widget.ConstraintLayout>
Step 3: Create a model data class which represents the students list where we will read data from local json file from assets folder
package com.rrtutors.kotlinprograms.recyclerview
data class Student(var name:String,var rollNo:String) {
}
Step 4: Let's create Recyclerview child layout by adding CardView as parent widget
<?xml version="1.0" encoding="utf-8"?>
<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_margin="5dp"
android:elevation="5dp"
app:contentPadding="5dp"
android:background="?android:attr/selectableItemBackground"
android:layout_height="wrap_content">
<androidx.constraintlayout.widget.ConstraintLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
>
<ImageView
android:id="@+id/img"
android:layout_width="60dp"
android:src="@mipmap/ic_launcher"
app:layout_constraintStart_toStartOf="parent"
android:layout_height="60dp"
app:layout_constraintBottom_toBottomOf="parent"
app:layout_constraintTop_toTopOf="parent" />
<TextView
android:id="@+id/st_name"
android:textSize="22sp"
android:text="Name"
android:layout_width="0dp"
android:layout_marginLeft="10dp"
android:padding="5dp"
android:layout_height="wrap_content"
android:textStyle="bold"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toTopOf="parent"
app:layout_constraintStart_toEndOf="@+id/img" />
<TextView
android:id="@+id/st_number"
android:textSize="18sp"
android:text="No"
android:padding="5dp"
android:layout_width="0dp"
android:layout_height="wrap_content"
android:textStyle="italic"
app:layout_constraintStart_toStartOf="@+id/st_name"
app:layout_constraintEnd_toEndOf="parent"
app:layout_constraintTop_toBottomOf="@id/st_name"
android:layout_marginTop="8dp" />
</androidx.constraintlayout.widget.ConstraintLayout>
</androidx.cardview.widget.CardView>
Here we added Custom Ripple Effect to CardView as background.
Download complete example code for How do i add Cardview to RecyclerView android kotlin example
This content originally appeared on DEV Community and was authored by rrtutors
rrtutors | Sciencx (2021-11-22T18:31:28+00:00) How do i add Cardview to RecyclerView android kotlin example. Retrieved from https://www.scien.cx/2021/11/22/how-do-i-add-cardview-to-recyclerview-android-kotlin-example/
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