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 textSwitcher programmatically in kotlin in the application. We will also learn how to add textSwitcher to linearLayout programmatically in android application.
Output

Tutorialwing Kotlin Dynamic TextSwitcher Output
Getting Started
At first, we will create android project. Then, we will create and use textSwitcher 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 DynamicTextSwitcher. 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 textSwitcher dynamically.
2. Modify Values Folder
Open res/values/strings.xml file. Then, add below code into it.
<resources> <string name="app_name">DynamicTextSwitcher</string> <string name="next">Next</string> </resources>
3. Modify Layout Folder
Open res/layout/activity_main.xml file. Then, add below code into 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="match_parent" android:orientation="vertical"> <Button android:id="@+id/button" android:layout_width="wrap_content" android:layout_height="wrap_content" android:layout_gravity="center" android:layout_marginTop="40dp" android:text="@string/next"/> <LinearLayout android:id="@+id/rootContainer" android:layout_width="match_parent" android:layout_height="wrap_content" android:layout_marginTop="20dp" android:orientation="vertical"> </LinearLayout> </LinearLayout>
In activity_main.xml file, we have defined button and linearLayout, with id rootContainer, that will act as container for the textSwitcher created programmatically in the application.
4. Create Android TextSwitcher Programmatically / Dynamically in Kotlin
Open app/src/main/java/com.tutorialwing.dynamictextswitcher/MainActivity.kt file. Then, add below code into it.
package com.tutorialwing.dynamictextswitcher import android.graphics.Color import android.os.Bundle import android.support.v7.app.AppCompatActivity import android.view.Gravity import android.view.animation.AnimationUtils import android.widget.Button import android.widget.LinearLayout import android.widget.TextSwitcher import android.widget.TextView class MainActivity : AppCompatActivity() { private val textList = arrayOf("Panda", "Tiger", "Zebra", "Lion", "Deer", "Goat", "Ape", "Monkey", "Human") private var index = 0 override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) setContentView(R.layout.activity_main) val textSwitcher = TextSwitcher(this) textSwitcher.setFactory { val textView = TextView(this@MainActivity) textView.gravity = Gravity.TOP or Gravity.CENTER_HORIZONTAL textView.textSize = 32f textView.setTextColor(Color.RED) textView } textSwitcher.setText(textList[index]) val `in` = AnimationUtils.loadAnimation(this, android.R.anim.slide_in_left) textSwitcher.inAnimation = `in` val out = AnimationUtils.loadAnimation(this, android.R.anim.slide_out_right) textSwitcher.outAnimation = out val button = findViewById<Button>(R.id.button) button.setOnClickListener { index = if (index + 1 < textList.size) index + 1 else 0 textSwitcher.setText(textList[index]) } val linearLayout = findViewById<LinearLayout>(R.id.rootContainer) linearLayout?.addView(textSwitcher) } }
We have created textSwitcher programmatically in kotlin file (i.e. in MainActivity.kt file) in the application. Then, we have set factory that defines views between which textSwitcher switches. After that, we have set in and out animations that are used when current text is animated out and next text is animated in. Then, we have set click listener to show next text whenever it is clicked. At last, we have added this textSwitcher in linearLayout programmatically.
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.dynamictextswitcher" 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 TextSwitcher Programmatically in Kotlin.