코틀린 7-3 frame layout

class MainActivity : AppCompatActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        val binding = ActivityMainBinding.inflate(layoutInflater)
        setContentView(binding.root)

        binding.button.setOnClickListener {
            binding.button.visibility = View.INVISIBLE
            binding.imageView.visibility = View.VISIBLE
        }
        binding.imageView.setOnClickListener{
            binding.button.visibility = View.VISIBLE
            binding.imageView.visibility = View.INVISIBLE
        }
    }
}


좃같은 놈 오타때문에 한참 고민했네...

frame 레이아웃은 visibility에 많이 활용한다.