Greetings!
We have recently published 100+ articles on android tutorials with kotlin and java. If you need, you may visit Android Tutorial for beginners page. You can also check Kotlin Tutorial for beginners. Also, if you are interested in content writing, you can mail us at tutorialwing@gmail.com.Hello Readers! In this post, we are going to learn about how to use android horizontalScrollView programmatically in kotlin in the application. We will also learn how to add horizontalScrollView to linearLayout programmatically in android application.
Output

Tutorialwing Kotlin Dynamic HorizontalScrollView Output
Getting Started
At first, we will create android project. Then, we will create and use horizontalScrollView programmatically in kotlin file.
1. Creating New Project in Kotlin
Follow the steps below to create new project. Please ignore the steps if you have already created a new project.
Step | Description |
---|---|
1. | Open Android Studio. |
2. | Go to File => New => New Project. Write application name as DynamicHorizontalScrollView. Then, check Include Kotlin Support and click next button. |
3. | Select minimum SDK you need. However, we have selected 17 as minimum SDK. Then, click next button |
4. | Then, select Empty Activity => click next => click finish. |
5. | At this point, You will get a newly created android project successfully. |
Now, we will modify xml and kotlin file to use horizontalScrollView dynamically.
2. Modify Values Folder
Open res/values/strings.xml file. Then, add below code into it.
<resources> <string name="app_name">DynamicHorizontalScrollView</string> </resources>
3. Download Drawable Resources Needed
You will need some images, stored in res/drawable folder, to be used in the application. These drawable images will be used to create views to be scrolled inside horizontalScrollView.
4. Modify Layout Folder
Open res/layout/activity_main.xml file. Then, add below code into it.
<?xml version="1.0" encoding="utf-8"?> <LinearLayout android:id="@+id/rootContainer" xmlns:android="http://schemas.android.com/apk/res/android" android:layout_width="match_parent" android:layout_height="wrap_content" android:orientation="vertical"> </LinearLayout>
In activity_main.xml file, we have defined a linearLayout, with id rootContainer, that will act as container for the horizontalScrollView created dynamically in the application.
5. Create Android HorizontalScrollView Programmatically / Dynamically in Kotlin
Open app/src/main/java/com.tutorialwing.HorizontalScrollView/MainActivity.kt file. Then, add below code into it.
package com.tutorialwing.dynamichorizontalscrollview import android.os.Bundle import android.support.v7.app.AppCompatActivity import android.view.Gravity import android.view.ViewGroup import android.widget.HorizontalScrollView import android.widget.ImageView import android.widget.LinearLayout class MainActivity : AppCompatActivity() { override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val horizontalScrollView = HorizontalScrollView(this) val layoutParams = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.MATCH_PARENT) horizontalScrollView.layoutParams = layoutParams val linearLayout = LinearLayout(this) val linearParams = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) linearLayout.orientation = LinearLayout.HORIZONTAL linearLayout.layoutParams = linearParams horizontalScrollView.addView(linearLayout) val imageView1 = ImageView(this) val params1 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params1.setMargins(30, 20, 30, 0) params1.gravity = Gravity.CENTER imageView1.layoutParams = params1 imageView1.setImageResource(R.drawable.guava) linearLayout.addView(imageView1) val imageView2 = ImageView(this) val params2 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params2.setMargins(0, 20, 30, 0) params2.gravity = Gravity.CENTER imageView2.layoutParams = params2 imageView2.setImageResource(R.drawable.jackfruit) linearLayout.addView(imageView2) val imageView3 = ImageView(this) val params3 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params3.setMargins(0, 20, 30, 0) params3.gravity = Gravity.CENTER imageView3.layoutParams = params3 imageView3.setImageResource(R.drawable.mix_fruit) linearLayout.addView(imageView3) val imageView4 = ImageView(this) val params4 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params4.setMargins(0, 20, 30, 0) params4.gravity = Gravity.CENTER imageView4.layoutParams = params4 imageView4.setImageResource(R.drawable.pomegranate) linearLayout.addView(imageView4) val imageView5 = ImageView(this) val params5 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params5.setMargins(0, 20, 30, 0) params5.gravity = Gravity.CENTER imageView5.layoutParams = params5 imageView5.setImageResource(R.drawable.strawberry) linearLayout.addView(imageView5) val imageView6 = ImageView(this) val params6 = LinearLayout.LayoutParams(ViewGroup.LayoutParams.MATCH_PARENT, ViewGroup.LayoutParams.WRAP_CONTENT) params6.setMargins(0, 20, 30, 0) params6.gravity = Gravity.CENTER imageView6.layoutParams = params6 imageView6.setImageResource(R.drawable.zespri_kiwi) linearLayout.addView(imageView6) val linearLayout1 = findViewById<LinearLayout>(R.id.rootContainer) linearLayout1?.addView(horizontalScrollView) } }
We have defined horizontalScrollView programmatically in kotlin file (i.e. in MainActivity.kt file). Then, we have set layout params etc. in it. After that, we have created a linearLayout and added it as direct child of horizontalScrollView. Since, horizontalScrollView can have only one direct child, all the defined imageViews have been added in linearLayout. Finally, we have added horizontalScrollView into linearLayout having id rootContainer.
Since AndroidManifest.xml file is very important in any android application, we are also going to see the content inside this file.
AndroidManifest.xml file
Code inside src/main/AndroidManifest.xml file is –
<?xml version="1.0" encoding="utf-8"?> <manifest package="com.tutorialwing.dynamichorizontalscrollview" xmlns:android="http://schemas.android.com/apk/res/android"> <application android:allowBackup="true" android:icon="@mipmap/ic_launcher" android:label="@string/app_name" android:roundIcon="@mipmap/ic_launcher_round" android:supportsRtl="true" android:theme="@style/AppTheme"> <activity android:name=".MainActivity"> <intent-filter> <action android:name="android.intent.action.MAIN"/> <category android:name="android.intent.category.LAUNCHER"/> </intent-filter> </activity> </application> </manifest>
When we run the program, we will get output as shown above.
That’s end of our tutorial on Creating Android HorizontalScrollView Programmatically in Kotlin.