up

app/src/main/java/io/legado/app/ui/book/read/ReadBookActivity.kt

@@ -256,8 +256,10 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
     }
 
     override fun upContent(position: Int) {
+        launch {
             page_view.upContent(position)
         }
+    }
 
     override fun upView() {
         ReadBook.curTextChapter?.let {

app/src/main/java/io/legado/app/ui/widget/page/TextChapter.kt

@@ -55,7 +55,7 @@ data class TextChapter(
     fun getReadLength(pageIndex: Int): Int {
         var length = 0
         val maxIndex = min(pageIndex, pageLines.lastIndex)
-        for (index in 0 until maxIndex) {
+        for (index in 0..maxIndex) {
             length += pageLengths[index]
         }
         return length