优化

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

@@ -350,13 +350,13 @@ object ChapterProvider {
         srcList: LinkedList<String>? = null
     ): Pair<Int, Float> {
         var absStartX = x
+        val widthsArray = FloatArray(text.length)
         val layout = if (ReadBookConfig.useZhLayout) {
-            ZhLayout(text, textPaint, visibleWidth)
+            ZhLayout(text, textPaint, visibleWidth, widthsArray)
         } else {
+            textPaint.getTextWidths(text, widthsArray)
             StaticLayout(text, textPaint, visibleWidth, Layout.Alignment.ALIGN_NORMAL, 0f, 0f, true)
         }
-        val widthsArray = FloatArray(text.length)
-        textPaint.getTextWidths(text, widthsArray)
         val widthsList = widthsArray.asList()
         var durY = when {
             //标题y轴居中

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

@@ -13,7 +13,8 @@ import kotlin.math.max
 class ZhLayout(
     text: CharSequence,
     textPaint: TextPaint,
-    width: Int
+    width: Int,
+    widthsArray: FloatArray
 ) : Layout(text, textPaint, width, Alignment.ALIGN_NORMAL, 0f, 0f) {
     companion object {
         private val postPanc = hashSetOf(
@@ -43,7 +44,6 @@ class ZhLayout(
 
     init {
         var line = 0
-        val widthsArray = FloatArray(text.length)
         curPaint.getTextWidths(text as String, widthsArray)
         val (words, widths) = ChapterProvider.getStringArrayAndTextWidths(
             text,