Notify first page change

app/src/main/java/eu/kanade/tachiyomi/ui/reader/ReaderActivity.kt

@@ -20,6 +20,7 @@ import eu.kanade.tachiyomi.data.database.models.Chapter
 import eu.kanade.tachiyomi.data.database.models.Manga
 import eu.kanade.tachiyomi.data.preference.PreferencesHelper
 import eu.kanade.tachiyomi.data.preference.getOrDefault
+import eu.kanade.tachiyomi.data.source.model.Page
 import eu.kanade.tachiyomi.ui.base.activity.BaseRxActivity
 import eu.kanade.tachiyomi.ui.reader.viewer.base.BaseReader
 import eu.kanade.tachiyomi.ui.reader.viewer.pager.horizontal.LeftToRightReader
@@ -308,15 +309,18 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
         return fragment
     }
 
-    fun onPageChanged(currentPageIndex: Int, totalPages: Int) {
-        val page = currentPageIndex + 1
-        page_number.text = "$page/$totalPages"
+    fun onPageChanged(page: Page) {
+        presenter.onPageChanged(page)
+
+        val pageNumber = page.pageNumber + 1
+        val pageCount = page.chapter.pages!!.size
+        page_number.text = "$pageNumber/$pageCount"
         if (page_seekbar.rotation != 180f) {
-            left_page_text.text = "$page"
+            left_page_text.text = "$pageNumber"
         } else {
-            right_page_text.text = "$page"
+            right_page_text.text = "$pageNumber"
         }
-        page_seekbar.progress = currentPageIndex
+        page_seekbar.progress = page.pageNumber
     }
 
     fun gotoPageInCurrentChapter(pageIndex: Int) {
@@ -326,7 +330,6 @@ class ReaderActivity : BaseRxActivity<ReaderPresenter>() {
                 val requestedPage = activePage.chapter.pages!![pageIndex]
                 it.setActivePage(requestedPage)
             }
-
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/base/BaseReader.kt

@@ -66,16 +66,6 @@ abstract class BaseReader : BaseFragment() {
      */
     private var hasRequestedNextChapter: Boolean = false
 
-    /**
-     * Updates the reader activity with the active page.
-     */
-    fun updatePageNumber() {
-        val activePage = getActivePage()
-        if (activePage != null) {
-            readerActivity.onPageChanged(activePage.pageNumber, activePage.chapter.pages!!.size)
-        }
-    }
-
     /**
      * Returns the active page.
      */
@@ -91,11 +81,13 @@ abstract class BaseReader : BaseFragment() {
     fun onPageChanged(position: Int) {
         val oldPage = pages[currentPage]
         val newPage = pages[position]
-        readerActivity.presenter.onPageChanged(newPage)
 
         val oldChapter = oldPage.chapter
         val newChapter = newPage.chapter
 
+        // Update page indicator and seekbar
+        readerActivity.onPageChanged(newPage)
+
         // Active chapter has changed.
         if (oldChapter.id != newChapter.id) {
             readerActivity.onEnterChapter(newPage.chapter, newPage.pageNumber)
@@ -108,7 +100,6 @@ abstract class BaseReader : BaseFragment() {
         }
 
         currentPage = position
-        updatePageNumber()
     }
 
     /**

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/pager/PagerReader.kt

@@ -219,8 +219,11 @@ abstract class PagerReader : BaseReader() {
     protected fun setPagesOnAdapter() {
         if (pages.isNotEmpty()) {
             adapter.pages = pages
-            setActivePage(currentPage)
-            updatePageNumber()
+            if (currentPage == pager.currentItem) {
+                onPageChanged(currentPage)
+            } else {
+                setActivePage(currentPage)
+            }
         }
     }
 

app/src/main/java/eu/kanade/tachiyomi/ui/reader/viewer/webtoon/WebtoonReader.kt

@@ -177,7 +177,7 @@ class WebtoonReader : BaseReader() {
         if (pages.isNotEmpty()) {
             adapter.pages = pages
             recycler.adapter = adapter
-            updatePageNumber()
+            onPageChanged(currentPage)
         }
     }