Android Action Chip Using Kotlin With Example

In this article, we will learn about android Action Chip using Kotlin. We will go through various example that demonstrates how to use different attributes of Action Chip. For example,

In this article, we will get answer to questions like –

  • What is Action Chip?
  • Why should we consider Action Chip while designing ui for any app?
  • What are possibilities using Action Chip while designing ui? etc.

Let’s have a quick demo of things we want to cover in this tutorial –

Output

Tutorialwing Kotlin Android Action Chip Using Kotlin With Example

Getting Started

We can define android Action Chip widget as below –

Action Chip provides a component that can be used to perform some action. It offers action related to primary content.

Now, how do we use Action Chip in android application ?

Creating New Project

At first, we will create an application.
So, follow steps below to create any android project in Kotlin –

Step Description
1. Open Android Studio (Ignore if already done).
2. Go to File => New => New Project. This will open a new window. Then, under Phone and Tablet section, select Empty Activity. Then, click Next.
3. In next screen, select project name as ChipAction. Then, fill other required details.
4. Then, clicking on Finish button creates new project.

Newbie in Android ?

Some very important concepts (Recommended to learn before you move ahead)

Before we move ahead, we need to setup for viewBinding to access Android Action Chip Using Kotlin file without using findViewById() method.

Setup ViewBinding

Add viewBinding true in app/build.gradle file. 

 
 android { 
 	// OTHER CODE... 
 	buildFeatures { 
 		viewBinding true 
 	} 
 }

Now, set content in activity using view binding.
Open MainActivity.kt file and write below code in it. 

 
 class MainActivity : AppCompatActivity() { 
 	
 	private lateinit var binding: ActivityMainBinding 
 	
 	override fun onCreate(savedInstanceState: Bundle?) { 
 		super.onCreate(savedInstanceState) 
 		binding = ActivityMainBinding.inflate(layoutInflater) 
 		val view = binding.root 
 		setContentView(view) 
 	} 
 }

Now, we can access view in Kotlin file without using findViewById() method.

Using Action Chip in Kotlin

Follow steps below to use Action Chip in newly created project –

  • We need some drawable images for our project. So, we have below options –
    1. Download drawable resources
    2. Learn how to create raster image. Then, create some images of your choice.
    3. Learn how to create Vector image. Then, create some images of your choice.
  • Open res/values/strings.xml file. Then, add below code into it. 
    <resources>
    <string name="app_name">ChipAction</string>
    <string name="choose_action">Choose Action</string>
    <string name="add_item">Add Item</string>
    <string name="edit_item">Edit Item</string>
    <string name="delete_item">Delete Item</string>
</resources>
  • Open res/layout/activity_main.xml file. Then, add below code in it – 
    <?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout 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="match_parent"
    android:padding="10dp"
    tools:context=".MainActivity">

    <TextView
        android:id="@+id/label"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginBottom="20dp"
        android:text="@string/choose_action"
        android:textSize="16sp"
        android:textStyle="bold"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

    <com.google.android.material.chip.ChipGroup
        android:id="@+id/chipGroup"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/label"
        app:singleLine="false">

        <com.google.android.material.chip.Chip
            android:id="@+id/chip1"
            style="@style/Widget.MaterialComponents.Chip.Action"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/add_item"
            app:chipIcon="@drawable/ic_add" />

        <com.google.android.material.chip.Chip
            android:id="@+id/chip2"
            style="@style/Widget.MaterialComponents.Chip.Action"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/edit_item"
            app:chipIcon="@drawable/ic_edit" />

        <com.google.android.material.chip.Chip
            android:id="@+id/chip3"
            style="@style/Widget.MaterialComponents.Chip.Action"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:text="@string/delete_item"
            app:chipIcon="@drawable/ic_delete" />

    </com.google.android.material.chip.ChipGroup>

</androidx.constraintlayout.widget.ConstraintLayout>
  • We can also access it in Kotlin File, MainActivity.kt, as below – 

    package com.tutorialwing.chipaction

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.widget.Toast
import com.tutorialwing.chipaction.databinding.ActivityMainBinding

class MainActivity : AppCompatActivity() {

	private lateinit var binding: ActivityMainBinding

	override fun onCreate(savedInstanceState: Bundle?) {
		super.onCreate(savedInstanceState)

		binding = ActivityMainBinding.inflate(layoutInflater)
		setContentView(binding.root)

		setupChip()
	}

	private fun setupChip() {
		binding.chip1.setOnClickListener {
			Toast.makeText(this, "Clicked on `Add Item` chip", Toast.LENGTH_SHORT).show()
		}
		binding.chip2.setOnClickListener {
			Toast.makeText(this, "Clicked on `Edit Item` chip", Toast.LENGTH_SHORT).show()
		}
		binding.chip3.setOnClickListener {
			Toast.makeText(this, "Clicked on `Delete Item` chip", Toast.LENGTH_SHORT).show()
		}
	}
}

Now, run the application. We will get output as below –
Tutorialwing Kotlin Android Action Chip Using Kotlin With Example

Different Attributes of Action Chip in XML

Now, we will see how to use different attributes of Android Action Chip using Kotlin to customise it –

Set Id of Action Chip

Many a time, we need id of View to access it in kotlin file or create ui relative to that view in xml file. So, we can set id of Action Chip using android:id attribute like below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        />

Here, we have set id of Action Chip as actionChip_ID using android:id=”” attribute. So, if we need to reference this Action Chip, we need to use this id – actionChip_ID.
Learn to Set ID of Action Chip Dynamically

Set Width of Action Chip

We use android:layout_width=”” attribute to set width of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        />

Width can be either “MATCH_PARENT” or “WRAP_CONTENT” or any fixed value (like 20dp, 30dp etc.).
Learn to Set Width of Action Chip Dynamically

Set Height of Action Chip

We use android:layout_height=”” attribute to set height of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        />

Height can be either “MATCH_PARENT” or “WRAP_CONTENT” or any fixed value.
Learn to Set Height of Action Chip Dynamically

Set Padding of Action Chip

We use android:padding=”” attribute to set padding of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:padding="10dp"
        />

Here, we have set padding of 10dp in Action Chip using android:padding=”” attribute.
Learn to Set Padding of Action Chip Dynamically

Set Margin of Action Chip

We use android:layout_margin=”” attribute to set margin of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_margin="10dp"
        />

Here, we have set margin of 10dp in Action Chip using android:layout_margin=”” attribute.
Learn to Set Margin of Action Chip Dynamically

Set Background of Action Chip

We use android:background=”” attribute to set background of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:background="#ff0000"
        />

Here, we have set background of color #ff0000 in Action Chip using android:background=”” attribute.
Learn to Set Background of Action Chip Dynamically

Set Visibility of Action Chip

We use android:visibility=”” attribute to set visibility of Action Chip.
We can do it as below – 

    <com.google.android.material.chip.Chip
        android:id="@+id/actionChip_ID"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:visibility="gone"
        />

Here, we have set visibility of Action Chip using android:visiblity=”” attribute. Visibility can be of three types – gone, visible and invisible
Learn to Set Visibility of Action Chip Dynamically

Different Attributes of Android Action Chip Widget

Learn About Different Attributes of Chip

We have seen different attributes of Action Chip and how to use it. If you wish to visit post to learn more about it

Thus, we have seen what is Action Chip, how can we use android Action Chip using Kotlin ? etc. We also went through different attributes of android Action Chip.

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