up

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

@@ -26,8 +26,9 @@ import java.util.*
 
 
 class ContentView : FrameLayout {
-    private var isScroll: Boolean = false
     var callBack: CallBack? = null
+    private var isScroll: Boolean = false
+    private var pageSize: Int = 0
     private val bgImage: AppCompatImageView = AppCompatImageView(context)
         .apply {
             scaleType = ImageView.ScaleType.CENTER_CROP
@@ -112,11 +113,18 @@ class ContentView : FrameLayout {
         tv_top_right.text = context.getString(R.string.battery_show, battery)
     }
 
+    fun setContent(textPage: TextPage?) {
+        content_text_view.text = textPage?.text
+        tv_bottom_left.text = textPage?.title
+        pageSize = textPage?.pageSize ?: 0
+        setPageIndex(textPage?.index)
+    }
+
     @SuppressLint("SetTextI18n")
-    fun setContent(page: TextPage?) {
-        content_text_view.text = page?.text
-        tv_bottom_left.text = page?.title
-        tv_bottom_right.text = "${page?.index?.plus(1)}/${page?.pageSize}"
+    fun setPageIndex(pageIndex: Int?) {
+        pageIndex?.let {
+            tv_bottom_right.text = "${pageIndex.plus(1)}/${pageSize}"
+        }
     }
 
     fun isTextSelected(): Boolean {

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

@@ -210,7 +210,11 @@ class PageView(context: Context, attrs: AttributeSet) :
     }
 
     override fun scrollToLine(line: Int) {
-
+        callback?.textChapter()?.let {
+            val pageIndex = it.getPageIndex(line)
+            curPage?.setPageIndex(pageIndex)
+            callback?.setPageIndex(pageIndex)
+        }
     }
 
     interface CallBack {

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

@@ -31,7 +31,7 @@ data class TextChapter(
             pages.forEach {
                 spannableStringBuilder.append(it.text)
             }
-            return TextPage(0, spannableStringBuilder, title, position, chaptersSize)
+            return TextPage(0, spannableStringBuilder, title, position, pages.size)
         }
         return null
     }
@@ -76,5 +76,16 @@ data class TextChapter(
         }
         return 0
     }
+
+    fun getPageIndex(line: Int): Int {
+        var lines = 0
+        for (pageIndex in pageLines.indices) {
+            lines += pageLines[pageIndex] + 1
+            if (line < lines) {
+                return pageIndex
+            }
+        }
+        return 0
+    }
 }