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AndroidDev - Reddit

06 February 2026 23:58

How can I create a certain amount of buttons at runtime and put them in a ScrollView so that the user can scroll and select one of them?

Hello.

I'm making a project manager app and one of the functionalities I want to implement is that, at boot, the app reads through the database and creates one button per project the text of which is the name of the project. I have no idea however how to dynamically create a button, give it the style I want and put it in the ScrollView, I have tried looking online too but surprisingly I haven't had much luck, can you help me? Here is the Kotlin code of the part where I iterate through projects, one of the TODOs is where the buttons should be created and put in the scrollView

val projectScroller: ScrollView = findViewById(R.id.projectScroller)

// ...

var projects: MutableList<Project> = mutableListOf()
try
{
val projCursor: Cursor = database.getAllEntriesFromTable(GameDatabaseHelper.PROJTABLE)

if (projCursor.moveToFirst())
{
do
{
val name: String = projCursor.getString(projCursor.getColumnIndexOrThrow("name"))
val descr: String = projCursor.getString(projCursor.getColumnIndexOrThrow("description"))
// TODO: Once implemented in the DB, add a functionality to read the characters and other important voices for projects

val project: Project = Project(name, descr)
projects.add(project)

// TODO: Implement functionality that adds button to the scrollview
} while(projCursor.moveToNext())
}
else
{
Toast.makeText(this, "ERROR READING FROM DATABASE: Invalid table or db is empty", Toast.LENGTHSHORT).show()
}

projCursor.close() // I suppose?
}
catch (e: RuntimeException)
{
Toast.makeText(this, "ERROR: projects table doesn't exist", Toast.LENGTHLONG).show()
}

And this is the XML code of the activity

<?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:id="@+id/main"
android:layoutwidth="matchparent"
android:layoutheight="matchparent"
android:background="@color/bckgrgray"
tools:context=".MainActivity" >

<ScrollView
android:id="@+id/projectScroller"
android:layoutwidth="409dp"
android:layoutheight="599dp"
android:layoutmarginStart="1dp"
android:layoutmarginTop="64dp"
android:layoutmarginEnd="1dp"
android:layoutmarginBottom="64dp"
app:layoutconstraintBottomtoBottomOf="parent"
app:layoutconstraintEndtoEndOf="parent"
app:layoutconstraintStarttoStartOf="parent"
app:layoutconstraintToptoTopOf="parent">

<LinearLayout
android:layoutwidth="matchparent"
android:layoutheight="wrapcontent"
android:orientation="vertical" />
</ScrollView>

<TextView
android:id="@+id/yourProjectHeader"
android:layoutwidth="wrapcontent"
android:layoutheight="wrapcontent"
android:fontFamily="sans-serif-condensed-medium"
android:text="Your Projects"
android:textColor="@color/lining"
android:textColorLink="#A41515"
android:textSize="32sp"
app:layoutconstraintBottomtoTopOf="@+id/projectScroller"
app:layoutconstraintEndtoEndOf="parent"
app:layoutconstraintStarttoStartOf="parent"
app:layoutconstraintToptoTopOf="parent" />

<Button
android:id="@+id/addProjectButton"
android:layoutwidth="wrapcontent"
android:layoutheight="wrapcontent"