How you can create a dynamic spinner in Kotlin Android | Custom spinner in Android

How you can create a dynamic spinner in Kotlin | Custom spinner in Android

1. In your layout XML file, add a Spinner element to the layout.

<Spinner
    android:id="@+id/spinner"
    android:layout_width="match_parent"
    android:layout_height="wrap_content" />

2. In your activity or fragment, find the Spinner element by its ID.

val spinner = findViewById<Spinner>(R.id.spinner)

3. Create a list of items to display in the spinner.

val items = listOf("Item 1", "Item 2", "Item 3")

4. Create an ArrayAdapter for the spinner, and set the adapter to the spinner.

val adapter = ArrayAdapter(this, android.R.layout.simple_spinner_item, items)
adapter.setDropDownViewResource(android.R.layout.simple_spinner_dropdown_item)
spinner.adapter = adapter

5. (Optional) Set a listener for when an item is selected in the spinner.

spinner.onItemSelectedListener = object : AdapterView.OnItemSelectedListener {
    override fun onItemSelected(parent: AdapterView<*>, view: View, position: Int, id: Long) {
        // Do something with the selected item
    }

    override fun onNothingSelected(parent: AdapterView<*>) { 
}}

Note that this is a basic example, and you may want to customize the layout of the spinner items and handle the selected item in a more complex way.