[Kotlin] enum

Day.kt

package com.jwsoft.kotlinproject

enum class Day {
    MONDAY,
    TUESDAY,
    WEDNESDAY,
    THURSDAY,
    FRIDAY,
    SATURDAY,
    SUNDAY
}

 

 

 

 

 

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout
    xmlns:android="http://schemas.android.com/apk/res/android"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical"
    android:gravity="center"
    tools:context=".MainActivity">

    <Button
        android:id="@+id/btnMonday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Monday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnTuesday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Tuesday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnWednesday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Wednesday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnThursday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Thursday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnFriday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Friday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnSaturday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Saturday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

    <Button
        android:id="@+id/btnSunday"
        android:layout_width="200dp"
        android:layout_height="70dp"
        android:textAllCaps="false"
        android:text="Sunday"
        android:textSize="20dp"
        android:textStyle="bold|italic"
        android:onClick="onClick"/>

</LinearLayout>

activity_main.xml

 

 

 

 

 

 

MainActivity.kt

package com.jwsoft.kotlinproject

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.view.View
import android.widget.Toast
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity(), View.OnClickListener {

    private lateinit var day: Day

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)
    }

    override fun onClick(v: View?) {
        when (v) {
            btnMonday -> day = Day.MONDAY
            btnTuesday -> day = Day.TUESDAY
            btnWednesday -> day = Day.WEDNESDAY
            btnThursday -> day = Day.THURSDAY
            btnFriday -> day = Day.FRIDAY
            btnSaturday -> day = Day.SATURDAY
            btnSunday -> day = Day.SUNDAY
        }

        Toast.makeText(this, day.toString(), Toast.LENGTH_SHORT).show()
    }

}

실행 결과