인프런 커뮤니티 질문&답변

앱 실행시키면 이런 오류가 나요... 강의 코드와 비교도 해보고 저 스스로 최대한 찾아보려고했지만 못 찾겠어요 도와주세요

<?xml version="1.0" encoding="utf-8"?>

<layout>

    <LinearLayout
        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"
        tools:context=".MainActivity"
        android:background="#008000"
        android:orientation="vertical">

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:layout_marginTop="100dp">

            <TextView
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:textSize="32sp"
                android:textColor="@color/black"
                android:layout_margin="20dp"
                android:gravity="center"
                android:textStyle="bold"
                android:text="인생은 주사위 한방에 가는거 아니겠습니까?!"/>

        </LinearLayout>

        <LinearLayout
            android:layout_width="match_parent"
            android:layout_height="200dp"
            android:weightSum="2">

            <ImageView
                android:id="@+id/dice1"
                android:src="@drawable/dice_1"
                android:layout_width="120dp"
                android:layout_height="120dp"
                android:layout_weight="1"/>

            <ImageView
                android:id="@+id/dice2"
                android:src="@drawable/dice_1"
                android:layout_width="120dp"
                android:layout_height="120dp"
                android:layout_weight="1"/>

        </LinearLayout>

        <Button
            android:id="@+id/diceStartBtn"
            android:text="인생 고고"
            android:backgroundTint="@color/black"
            android:textColor="@color/white"
            android:layout_width="match_parent"
            android:layout_height="50dp"
            android:layout_margin="50dp"/>

    </LinearLayout>

</layout>

 

package com.johnson.randomdice_app

import androidx.appcompat.app.AppCompatActivity
import android.os.Bundle
import android.util.Log
import android.widget.Toast
import androidx.databinding.DataBindingUtil
import com.johnson.randomdice_app.databinding.ActivityMainBinding
import kotlin.random.Random

class MainActivity : AppCompatActivity() {

    private lateinit var binding : ActivityMainBinding

    override fun onCreate(savedInstanceState: Bundle?) {

        super.onCreate(savedInstanceState)
        setContentView(R.layout.activity_main)

        binding = DataBindingUtil.setContentView(this, R.layout.activity_main)

        val diceImage1 = binding.dice1
        val diceImage2 = binding.dice2

        binding.diceStartBtn.setOnClickListener {

            Toast.makeText(this, "굴립니다", Toast.LENGTH_LONG).show()

            Log.d("MainActivity", Random.nextInt(1, 6).toString())
            Log.d("MainActivity", Random.nextInt(1, 6).toString())

            val number1 = Random.nextInt(1, 6)
            val number2 = Random.nextInt(1, 6)

            if (number1 == 1)
            {
                diceImage1.setImageResource(R.drawable.dice_1)
            } else if (number1 == 2){
                diceImage1.setImageResource(R.drawable.dice_2)
            } else if (number1 == 3){
                diceImage1.setImageResource(R.drawable.dice_3)
            } else if (number1 == 4){
                diceImage1.setImageResource(R.drawable.dice_4)
            } else if (number1 == 5){
                diceImage1.setImageResource(R.drawable.dice_5)
            } else {
                diceImage1.setImageResource(R.drawable.dice_6)
            }

            if (number2 == 1)
            {
                diceImage2.setImageResource(R.drawable.dice_1)
            } else if (number2 == 2){
                diceImage2.setImageResource(R.drawable.dice_2)
            } else if (number2 == 3){
                diceImage2.setImageResource(R.drawable.dice_3)
            } else if (number2 == 4){
                diceImage2.setImageResource(R.drawable.dice_4)
            } else if (number2 == 5){
                diceImage2.setImageResource(R.drawable.dice_5)
            } else {
                diceImage2.setImageResource(R.drawable.dice_6)
            }

        }

    }

}