Visibility hint on viewpager

PageBaseFragment.kt

import android.os.Bundle
import com.exozet.android.core.extensions.logv
import net.kibotu.swipedirectionviewpager.SwipeDirection
import net.kibotu.swipedirectionviewpager.ViewPagerPresenterAdapter

abstract class PageBaseFragment : BaseFragment(), ViewPagerPresenterAdapter.ViewPagerPresenter<Any, Any> {

    // region ViewPagerPresenterAdapter.ViewPagerPresenter

    override var viewPagerPresenterAdapter: ViewPagerPresenterAdapter<Any, Any>? = null

    override fun allowSwipeDirection(): SwipeDirection = SwipeDirection.NONE

    override fun onSwipeIntercepted(direction: SwipeDirection) {
    }

    // endregion

    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        userVisibleHint = false
    }

    override fun setMenuVisibility(visible: Boolean) {
        super.setMenuVisibility(visible)
        when {
            visible -> onUserVisible()
            else -> onUserInvisible()
        }
    }

    open fun onUserVisible() {
        logv("onUserVisible")
    }

    open fun onUserInvisible() {
        logv("onUserInvisible")
    }
}