优化

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

@@ -845,7 +845,11 @@ object ChapterProvider {
         titleTopSpacing = ReadBookConfig.titleTopSpacing.dpToPx()
         titleBottomSpacing = ReadBookConfig.titleBottomSpacing.dpToPx()
         val bodyIndent = ReadBookConfig.paragraphIndent
-        indentCharWidth = StaticLayout.getDesiredWidth(bodyIndent, contentPaint) / bodyIndent.length
+        var indentWidth = StaticLayout.getDesiredWidth(bodyIndent, contentPaint)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
+            indentWidth += contentPaint.letterSpacing * contentPaint.textSize
+        }
+        indentCharWidth = indentWidth / bodyIndent.length
         titlePaintTextHeight = titlePaint.textHeight
         contentPaintTextHeight = contentPaint.textHeight
         titlePaintFontMetrics = titlePaint.fontMetrics

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

@@ -2,6 +2,7 @@ package io.legado.app.ui.book.read.page.provider
 
 import android.graphics.Paint
 import android.graphics.Rect
+import android.os.Build
 import android.text.Layout
 import android.text.TextPaint
 import java.util.WeakHashMap
@@ -216,7 +217,13 @@ class ZhLayout(
         return cnCharWidth / 2 - d
     }
 
-    fun getDesiredWidth(sting: String, paint: TextPaint) = paint.measureText(sting)
+    fun getDesiredWidth(string: String, paint: TextPaint): Float {
+        var width = paint.measureText(string)
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.VANILLA_ICE_CREAM) {
+            width += paint.letterSpacing * paint.textSize
+        }
+        return width
+    }
 
     override fun getLineCount(): Int {
         return lineCount