[TIL]221005 - Kotlin 카드 딜러

class MainActivity : AppCompatActivity() {
    private lateinit var binding: ActivityMainBinding;
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityMainBinding.inflate(layoutInflater)
        //setContentView(R.layout.activity_main)
        setContentView(binding.root)
        binding.card1.setImageResource(R.drawable.c_2_of_hearts)
        getCardName(40)
    }

    private fun getCardName(c: Int) : String {
        Log.i("getCardName", c.toString())
        val shape = when (c/13) {
            0 -> "spades"
            1 -> "diamonds"
            2 -> "hearts"
            3 -> "clubs"
            else -> "error"
        }

        val number = when (c%13) {
            0 -> "ace"
            in 1..9 -> (c % 13 + 1).toString()
            10 -> "jack"
            11 -> "queen"
            12 -> "king"
            else -> "error"
        }
        return "c_${number}_of_${shape}"
    }
}

---

• landscape 지정
• 가로 화면 배경 지정

//세로 (layout\activity_main.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#ff0"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/card1"
        android:layout_width="100dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent" />

</androidx.constraintlayout.widget.ConstraintLayout>

//가로 (land\activity_main.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"
    xmlns:tools="http://schemas.android.com/tools"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:background="#060"
    tools:context=".MainActivity">

    <ImageView
        android:id="@+id/card1"
        android:layout_width="0dp"
        android:layout_height="0dp"
        app:layout_constraintBottom_toBottomOf="parent"
        app:layout_constraintEnd_toEndOf="parent"
        app:layout_constraintHorizontal_bias="1.0"
        app:layout_constraintStart_toStartOf="parent"
        app:layout_constraintTop_toTopOf="parent"
        app:layout_constraintVertical_bias="0.0" />

</androidx.constraintlayout.widget.ConstraintLayout>