CounterActivity

CounterActivity.kt

class CounterActivity : AppCompatActivity() {

    private val viewModel by viewModels<CounterViewModel>()

    private lateinit var binding: ActivityCounterBinding

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        binding = ActivityCounterBinding.inflate(layoutInflater)
        setContentView(binding.root)

        binding.buttonDecrement.setOnClickListener {
            viewModel.dispatch(DecrementCounter)
        }

        binding.buttonIncrement.setOnClickListener {
            viewModel.dispatch(IncrementCounter)
        }

        lifecycleScope.launchWhenCreated {
            viewModel.stateFlow.collect(::setupViews)
        }
    }

    private fun setupViews(state: CounterState) {
        binding.textCount.text = state.count.toString()
    }
}