Spinner GISTs

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<androidx.constraintlayout.widget.ConstraintLayout
        xmlns:android="http://schemas.android.com/apk/res/android"
        xmlns:tools="http://schemas.android.com/tools"
        xmlns:app="http://schemas.android.com/apk/res-auto"
        android:layout_width="match_parent"
        android:layout_height="match_parent"
        tools:context=".MainActivity">

    <ImageView
        android:id="@+id/imageView"
        android:layout_width="200dp"
        android:layout_height="200dp"
        android:layout_marginTop="30dp"
        android:contentDescription="banner"
        android:scaleType="fitCenter"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:srcCompat="@drawable/vacation" />

    <TextView
        android:id="@+id/textView3"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="32dp"
        android:layout_marginTop="8dp"
        android:layout_marginEnd="24dp"
        android:text="Select your Vacation Spot"
        android:textSize="22sp"
        android:textStyle="bold"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.48"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/imageView" />

    <TextView
        android:id="@+id/textView"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="24dp"
        android:text="Simple Spinner"
        android:textSize="22sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/textView3" />

    <androidx.appcompat.widget.AppCompatSpinner
        android:id="@+id/simpleSpinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintEnd_toEndOf="@+id/textView"
        app:layout_constraintStart_toStartOf="@+id/textView"
        app:layout_constraintTop_toBottomOf="@+id/textView" />

    <TextView
        android:id="@+id/textView2"
        android:layout_width="wrap_content"
        android:layout_height="wrap_content"
        android:layout_marginStart="24dp"
        android:layout_marginTop="32dp"
        android:layout_marginEnd="24dp"
        android:text="Custom Spinner"
        android:textSize="22sp"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="0.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toBottomOf="@+id/simpleSpinner" />

    <androidx.appcompat.widget.AppCompatSpinner
        android:id="@+id/customSpinner"
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:layout_marginStart="16dp"
        android:layout_marginTop="16dp"
        android:layout_marginEnd="16dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="@+id/textView2"
        app:layout_constraintHorizontal_bias="0.188"
        app:layout_constraintStart_toStartOf="@+id/textView2"
        app:layout_constraintTop_toBottomOf="@+id/textView2"
        app:layout_constraintVertical_bias="0.0" />

</androidx.constraintlayout.widget.ConstraintLayout>

all_countries.png

australia.png

china.png

Country.kt

package com.sriyank.spinner

data class Country(val image: Int, val name: String)

object Countries {

    private val images = intArrayOf(
        R.drawable.all_countries,
        R.drawable.india,
        R.drawable.united_states,
        R.drawable.australia,
        R.drawable.united_kingdom,
        R.drawable.china
    )

    private val countries = arrayOf(
        "All Countries",
        "India",
        "USA",
        "Australia",
        "United Kingdom",
        "China"
    )

    var list: ArrayList<Country>? = null
        get() {

            if (field != null)
                return field

            field = ArrayList()
            for (i in images.indices) {

                val imageId = images[i]
                val countryName = countries[i]

                val country = Country(imageId, countryName)
                field!!.add(country)
            }

            return field
        }
}

india.png

spinner_item.xml

<?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"
        android:orientation="vertical"
        android:layout_width="match_parent"
        android:layout_height="wrap_content">

    <ImageView
            android:id="@+id/countryImage"
            android:layout_width="wrap_content"
            android:layout_height="25dp"
            app:layout_constraintStart_toStartOf="parent"
            app:srcCompat="@drawable/india"
            android:adjustViewBounds="true"
            app:layout_constraintTop_toTopOf="parent" android:layout_marginStart="8dp" android:layout_marginTop="8dp"
            app:layout_constraintBottom_toBottomOf="parent" android:layout_marginBottom="8dp"/>

    <TextView
            android:id="@+id/countryName"
            android:layout_width="0dp"
            android:layout_height="wrap_content"
            app:layout_constraintTop_toTopOf="parent"
            app:layout_constraintEnd_toEndOf="parent"
            android:text="India"
            android:textColor="#353434"
            android:textSize="16sp"
            android:layout_marginEnd="8dp" app:layout_constraintStart_toEndOf="@+id/countryImage"
            android:layout_marginStart="8dp" android:layout_marginTop="8dp" app:layout_constraintHorizontal_bias="0.0"
            android:layout_marginBottom="8dp" app:layout_constraintBottom_toBottomOf="parent"/>

</androidx.constraintlayout.widget.ConstraintLayout>

united_kingdom.png

united_states.png

vacation.png