How to use addOnPageChangeListener in Version 3?

[paulocoutinhox]

Hi,

Im migrating to version 3, how i can use now the "addOnPageChangeListener"?

Before im using:

private fun addChangeChapterListener() {
    navigatorFragment.resourcePager.addOnPageChangeListener(
        object :
            ViewPager.SimpleOnPageChangeListener() {
            override fun onPageScrollStateChanged(state: Int) {
                super.onPageScrollStateChanged(state)
                addChangePagerListener()
            }
        },
    )
}

But now resourcePager is private/internal.

Thanks.

[qnga]

Observe currentLocator. When you get a new href, you've changed resource.
Something like currentLocator.map { it.href }.distinctUntilChanged()

[mickael-menu]

Additionally, and only if you need the exact page number of the current resource, you can set a paginationListener when creating the EpubNavigatorFragment.

If you want to store and restore the last read location in the book, used the currentLocator as explained above by @qnga .