inikoding_toast_kootlin_ActivityMain

import android.support.v7.app.AppCompatActivity
import android.os.Bundle
import android.support.design.widget.Snackbar
import kotlinx.android.synthetic.main.activity_main.*

class MainActivity : AppCompatActivity() {

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

        button_snackbar.setOnClickListener {
            val snackbar = Snackbar.make(it, "Halo Selamat Pagi", Snackbar.LENGTH_LONG)
            snackbar.show()
        }
    }
}