feat: 优化

app/src/main/java/io/legado/app/constant/PreferKey.kt

@@ -43,4 +43,5 @@ object PreferKey {
     const val readStyleSelect = "readStyleSelect"
     const val systemTypefaces = "system_typefaces"
     const val readBodyToLh = "readBodyToLh"
+    const val textFullJustify = "textFullJustify"
 }

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

@@ -127,6 +127,7 @@ object ReadBookConfig {
         }
     var isScroll = pageAnim == 3
     val clickTurnPage get() = App.INSTANCE.getPrefBoolean(PreferKey.clickTurnPage, true)
+    val textFullJustify get() = App.INSTANCE.getPrefBoolean(PreferKey.textFullJustify, true)
     var bodyIndentCount = App.INSTANCE.getPrefInt(PreferKey.bodyIndent, 2)
         set(value) {
             field = value

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

@@ -111,6 +111,9 @@ class MoreConfigDialog : DialogFragment() {
                         Help.setOrientation(it)
                     }
                 }
+                PreferKey.textFullJustify -> {
+                    postEvent(EventBus.UP_CONFIG, true)
+                }
             }
         }
 

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

@@ -161,6 +161,10 @@ object ChapterProvider {
         desiredWidth: Float
     ) {
         var x = 0f
+        if (!ReadBookConfig.textFullJustify) {
+            addCharsToLineLast(textLine, words, textPaint, x)
+            return
+        }
         val bodyIndent = ReadBookConfig.bodyIndent
         val icw = StaticLayout.getDesiredWidth(bodyIndent, textPaint) / bodyIndent.length
         bodyIndent.toStringArray().forEach {
@@ -186,6 +190,10 @@ object ChapterProvider {
         desiredWidth: Float,
         startX: Float
     ) {
+        if (!ReadBookConfig.textFullJustify) {
+            addCharsToLineLast(textLine, words, textPaint, startX)
+            return
+        }
         val gapCount: Int = words.length - 1
         val d = (visibleWidth - desiredWidth) / gapCount
         var x = startX

app/src/main/res/values-zh-rHK/strings.xml

@@ -691,4 +691,5 @@
     <string name="hideFooter">隱藏頁脚</string>
     <string name="auto_change_source">自動換源</string>
     <string name="to_bottom">置底</string>
+    <string name="text_full_justify">文字兩端對齊</string>
 </resources>

app/src/main/res/values/strings.xml

@@ -693,5 +693,6 @@
     <string name="night_background_color">夜间，背景色</string>
     <string name="night_navbar_color">夜间，底栏色</string>
     <string name="auto_change_source">自动换源</string>
+    <string name="text_full_justify">文字两端对齐</string>
 
 </resources>

app/src/main/res/xml/pref_config_read.xml

@@ -36,6 +36,12 @@
         android:key="hideNavigationBar"
         app:iconSpaceReserved="false" />
 
+    <io.legado.app.ui.widget.prefs.SwitchPreference
+        android:defaultValue="true"
+        android:title="@string/text_full_justify"
+        android:key="textFullJustify"
+        app:iconSpaceReserved="false" />
+
     <io.legado.app.ui.widget.prefs.SwitchPreference
         android:defaultValue="true"
         android:title="@string/volume_key_page"