kirich1409

@Module
interface ComponentProvidersModule {

    // Define that a Dagger Component can provide Multibind Map of Activities by class
    @Multibinds
    fun provideActivities(): Map<Class<out Activity>, @JvmSuppressWildcards Activity>
}

kirich1409

@Module
interface ActivityBindsModule {

    @Binds
    @IntoMap
    @ActivityKey(MainActivity::class)
    fun bindMainActivityToActivityForMultiBinding(activity: MainActivity): Activity
}

kirich1409

@Module
interface FragmentBindsModule {

    @Binds
    @IntoMap
    @FragmentKey(MessageFragment::class)
    fun bindMessageFragmentToFragmentForMultiBinding(fragment: MessageFragment): Fragment
}

kirich1409

@MapKey
@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER)
@Retention(AnnotationRetention.RUNTIME)
annotation class FragmentKey(val value: KClass<out Fragment>)

kirich1409

@MapKey
@Target(AnnotationTarget.FUNCTION, AnnotationTarget.PROPERTY_GETTER)
@Retention(AnnotationRetention.RUNTIME)
annotation class ActivityKey(val value: KClass<out Activity>)

kirich1409

class SetFragmentFactoryActivityCallback(
    private val newFragmentFactory: FragmentFactory
) : EmptyActivityLifecycleCallbacks {

    override fun onActivityCreated(activity: Activity, savedInstanceState: Bundle?) {
        if (activity is FragmentActivity) {
            activity.supportFragmentManager.fragmentFactory = newFragmentFactory
        }
    }
}

kirich1409

class FragmentViewBindingProperty<T : ViewBinding>(
    private val viewBinder: ViewBinder<T>
) : ReadOnlyProperty<Fragment, T> {

    private var viewBinding: T? = null
    private val lifecycleObserver = BindingLifecycleObserver()

    @MainThread
    override fun getValue(thisRef: Fragment, property: KProperty<*>): T {
        checkIsMainThread()

kirich1409

class ProfileFragment : Fragment(R.layout.profile) {
  
      private var viewBinding: ProfileBinding? = null
  
      override fun onViewCreated(view: View, savedState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        viewBinding = ProfileBinding.bind(view)
        // Use viewBinding
      }
  

kirich1409

class ProfileFragment : Fragment(R.layout.profile) {

    private val viewBinding: ProfileBinding by viewBinding()

    override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
        super.onViewCreated(view, savedInstanceState)
        // Use viewBinding
    }
}

kirich1409

class ProfileFragment() : Fragment(R.layout.profile) {

    private val viewBinding: ProfileBinding by viewBinding()

    override fun onDestroyView() {
        super.onDestroyView()
        // Clear data in views from viewBinding
        // ViewBinding inside viewBinding is null
    }
}