package jackall.moncalc.activity import android.arch.lifecycle.ViewModelProviders import android.databinding.DataBindingUtil import android.os.Bundle import android.support.v7.app.AppCompatActivity import jackall.moncalc.R import jackall.moncalc.databinding.ActivityMainBinding import jackall.moncalc.viewmodel.MainViewModel /** * Created by matsumoto_k on 2017/11/03. */ class MainActivity : AppCompatActivity() { val mainBinding by lazy { DataBindingUtil.setContentView<ActivityMainBinding>(this, R.layout.activity_main) } val mainViewModel by lazy { ViewModelProviders.of(this, MainViewModel.Factory()).get(MainViewModel::class.java) } override fun onCreate(savedInstanceState: Bundle?) { super.onCreate(savedInstanceState) mainBinding.mainViewModel = mainViewModel lifecycle.addObserver(mainViewModel) } }