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Retain last read page when using the webtoon mode (#738)

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* Retain last read page when using the webtoon mode, see issue #453

* #738 inorichi's request change to webtoonreader pull request

* #738 per inorichi recycler could be null at the point
scrollToLastPageRead was called, moved to below the check in the view
had been initialized.
This commit is contained in:
lifeweaver 2017-04-09 11:01:07 -03:00 committed by inorichi
parent 5e3d71c6c5
commit d9a2255be9
1 changed files with 21 additions and 3 deletions
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24
app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonReader.kt
View file

@ -72,9 +72,6 @@ class WebtoonReader : BaseReader() {
layoutManager = PreCachingLayoutManager(activity)
layoutManager.extraLayoutSpace = screenHeight / 2
if (savedState != null) {
layoutManager.scrollToPositionWithOffset(savedState.getInt(SAVED_POSITION), 0)
}
recycler = RecyclerView(activity).apply {
layoutParams = ViewGroup.LayoutParams(MATCH_PARENT, WRAP_CONTENT)
@ -107,6 +104,26 @@ class WebtoonReader : BaseReader() {
return recycler
}
/**
* Uses two ways to scroll to the last page read.
*/
private fun scrollToLastPageRead(last_page_read: Int) {
// Scrolls to the correct page initially, but isn't reliable beyond that.
recycler.addOnLayoutChangeListener(object: View.OnLayoutChangeListener {
override fun onLayoutChange(p0: View?, p1: Int, p2: Int, p3: Int, p4: Int, p5: Int, p6: Int, p7: Int, p8: Int) {
if(pages.isEmpty()) {
setActivePage(last_page_read)
} else {
recycler.removeOnLayoutChangeListener(this)
}
}
})
// Scrolls to the correct page after app has been in use, but can't do it the very first time.
recycler.post { setActivePage(last_page_read) }
}
override fun onDestroyView() {
subscriptions.unsubscribe()
super.onDestroyView()
@ -150,6 +167,7 @@ class WebtoonReader : BaseReader() {
// Make sure the view is already initialized.
if (view != null) {
setPagesOnAdapter()
scrollToLastPageRead(this.currentPage)
}
}