下滑虚线

app/src/main/java/io/legado/app/help/config/ReadBookConfig.kt

@@ -388,6 +388,18 @@ object ReadBookConfig {
             config.dottedLine = value
         }
 
+    var dottedBase: Float
+        get() = config.dottedBase
+        set(value) {
+            config.dottedBase = value
+        }
+
+    var dottedRatio: Float
+        get() = config.dottedRatio
+        set(value) {
+            config.dottedRatio = value
+        }
+
     var paddingBottom: Int
         get() = config.paddingBottom
         set(value) {
@@ -607,6 +619,8 @@ object ReadBookConfig {
         var paragraphIndent: String = "　　",//段落缩进
         var underline: Boolean = false, //下划线
         var dottedLine: Boolean = false, //虚线
+        var dottedBase: Float = 6f, //长度
+        var dottedRatio: Float = 6f,
         var paddingBottom: Int = 6,
         var paddingLeft: Int = 16,
         var paddingRight: Int = 16,

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

@@ -134,6 +134,12 @@ class BgTextConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_read_bg
         binding.swDottedline.isChecked = dottedLine
         binding.swDottedline.isEnabled = underline
         binding.sbBgAlpha.value = ReadBookConfig.bgAlpha.toFloat()
+        binding.dottedRatio.valueFormat = {
+            (ReadBookConfig.dottedRatio * 100).toInt().toString()
+        }
+        binding.dottedBase.valueFormat = {
+            (ReadBookConfig.dottedBase * 100).toInt().toString()
+        }
     }
 
     @SuppressLint("InflateParams")
@@ -239,6 +245,14 @@ class BgTextConfigDialog : BaseBottomSheetDialogFragment(R.layout.dialog_read_bg
                 postEvent(EventBus.UP_CONFIG, arrayListOf(3))
             }
         })
+        binding.dottedRatio.onChanged = {
+            ReadBookConfig.dottedRatio = it / 100f
+            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+        }
+        binding.dottedBase.onChanged = {
+            ReadBookConfig.dottedBase = it / 100f
+            postEvent(EventBus.UP_CONFIG, arrayListOf(6, 9, 11))
+        }
     }
 
     private fun exportConfig(uri: Uri) {

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

@@ -2,7 +2,6 @@ package io.legado.app.ui.book.read.page.entities
 
 import android.annotation.SuppressLint
 import android.graphics.Canvas
-import android.graphics.DashPathEffect
 import android.graphics.Paint.FontMetrics
 import android.os.Build
 import androidx.annotation.Keep
@@ -157,19 +156,15 @@ data class TextLine(
         if (checkFastDraw()) {
             fastDrawTextLine(view, canvas)
         } else {
-            for (i in columns.indices) {
-                columns[i].draw(view, canvas)
-            }
+            for (i in columns.indices) columns[i].draw(view, canvas)
         }
-        // 墨水屏模式下的朗读和搜索下划线
+
         if (AppConfig.isEInkMode && (isReadAloud || searchResultColumnCount > 0)) {
-            val underlinePaint = PaintPool.obtain()
-            underlinePaint.set(ChapterProvider.contentPaint)
-            underlinePaint.strokeWidth = 1.dpToPx().toFloat()
+            val linePaint = ChapterProvider.linePaint
             val lineY = height - 1.dpToPx()
-            canvas.drawLine(lineStart + indentWidth, lineY, lineEnd, lineY, underlinePaint)
-            PaintPool.recycle(underlinePaint)
+            canvas.drawLine(lineStart + indentWidth, lineY, lineEnd, lineY, linePaint)
         }
+
         if (ReadBookConfig.underline && !isImage && ReadBook.book?.isImage != true) {
             drawUnderline(canvas, ReadBookConfig.dottedLine)
         }
@@ -215,20 +210,14 @@ data class TextLine(
      * 绘制下划线
      */
     private fun drawUnderline(canvas: Canvas, dottedLine: Boolean) {
+        val paint = ChapterProvider.linePaint
+        paint.pathEffect =
+            if (dottedLine && !AppConfig.isEInkMode)
+                ChapterProvider.dashEffect
+            else
+                null
         val lineY = height - 1.dpToPx()
-        val paint = ChapterProvider.contentPaint
-        val oldEffect = paint.pathEffect
-        if (dottedLine) {
-            paint.pathEffect = DashPathEffect(floatArrayOf(6f, 6f), 0f)
-        }
-        canvas.drawLine(
-            lineStart + indentWidth,
-            lineY,
-            lineEnd,
-            lineY,
-            paint
-        )
-        paint.pathEffect = oldEffect
+        canvas.drawLine(lineStart + indentWidth, lineY, lineEnd, lineY, paint)
     }
 
 

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

@@ -1,6 +1,8 @@
 package io.legado.app.ui.book.read.page.provider
 
 import android.annotation.SuppressLint
+import android.graphics.DashPathEffect
+import android.graphics.Paint
 import android.graphics.Paint.FontMetrics
 import android.graphics.RectF
 import android.graphics.Typeface
@@ -17,6 +19,8 @@ import io.legado.app.data.entities.BookChapter
 import io.legado.app.help.book.BookContent
 import io.legado.app.help.config.AppConfig
 import io.legado.app.help.config.ReadBookConfig
+import io.legado.app.help.config.ReadBookConfig.dottedBase
+import io.legado.app.help.config.ReadBookConfig.dottedRatio
 import io.legado.app.model.ImageProvider
 import io.legado.app.model.ReadBook
 import io.legado.app.ui.book.read.page.entities.TextChapter
@@ -53,6 +57,17 @@ object ChapterProvider {
 
     const val indentChar = "　"
 
+    val linePaint: Paint by lazy {
+        Paint(contentPaint).apply {
+            clearShadowLayer()
+            isAntiAlias = true
+            strokeWidth = 1.dpToPx().toFloat()
+            style = Paint.Style.STROKE
+        }
+    }
+
+    val dashEffect = DashPathEffect(floatArrayOf(dottedBase, dottedRatio), 0f)
+
     @JvmStatic
     var viewWidth = 0
         private set