优化

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

@@ -23,10 +23,7 @@ import io.legado.app.ui.book.read.page.entities.column.*
 import io.legado.app.ui.book.read.page.provider.ChapterProvider
 import io.legado.app.ui.book.read.page.provider.ImageProvider
 import io.legado.app.ui.book.read.page.provider.TextPageFactory
-import io.legado.app.utils.activity
-import io.legado.app.utils.getCompatColor
-import io.legado.app.utils.getPrefBoolean
-import io.legado.app.utils.toastOnUi
+import io.legado.app.utils.*
 import kotlin.math.min
 
 /**
@@ -149,14 +146,15 @@ class ContentTextView(context: Context, attrs: AttributeSet?) : View(context, at
         val lineBottom = textLine.lineBottom + relativeOffset
         drawChars(canvas, textPage, textLine, lineTop, lineBase, lineBottom)
         if (ReadBookConfig.underline && ReadBook.book?.isImage != true) {
-            drawUnderline(canvas, textLine, lineBottom)
+            drawUnderline(canvas, textLine, relativeOffset)
         }
     }
 
     /**
      * 绘制下划线
      */
-    private fun drawUnderline(canvas: Canvas, textLine: TextLine, lineY: Float) {
+    private fun drawUnderline(canvas: Canvas, textLine: TextLine, relativeOffset: Float) {
+        val lineY = relativeOffset + textLine.lineBottom - 1.dpToPx()
         canvas.drawLine(
             textLine.lineStart,
             lineY,

app/src/main/java/io/legado/app/ui/book/read/page/provider/ChapterProvider.kt

@@ -675,12 +675,12 @@ object ChapterProvider {
     }
 
     /**
-     * 更新View尺寸,height减去1dp防止下划线无法画全
+     * 更新View尺寸
      */
     fun upViewSize(width: Int, height: Int) {
         if (width > 0 && height > 0 && (width != viewWidth || height != viewHeight)) {
             viewWidth = width
-            viewHeight = height - 1.dpToPx()
+            viewHeight = height
             upLayout()
             postEvent(EventBus.UP_CONFIG, true)
         }
@@ -713,6 +713,7 @@ object ChapterProvider {
             } else {
                 viewWidth - paddingLeft - paddingRight
             }
+            //留1dp画最后一行下划线
             visibleHeight = viewHeight - paddingTop - paddingBottom
             visibleRight = viewWidth - paddingRight
             visibleBottom = paddingTop + visibleHeight