painless-dagger-activity.kt

class MainActivity : AppCompatActivity() {
​
    override fun onCreate(savedInstanceState: Bundle?) {
        // init dagger graph
        val dagger: MyComponent = DaggerMyComponent.create()
​
        // insert the fragment factory
        supportFragmentManager.fragmentFactory = dagger.fragFactory()
​
        super.onCreate(savedInstanceState)
​
        setContentView(R.layout.activity_main)
​
        if (savedInstanceState == null) {
            supportFragmentManager.commitNow {
                val frag = supportFragmentManager.fragmentFactory.instantiate(
                    classLoader, MainFragment::class.java.canonicalName
                )
                add(R.id.frag_container, frag)
            }
        }
    }
}