feat: 优化代码

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

@@ -36,4 +36,5 @@ object PreferKey {
     const val textSelectAble = "selectText"
     const val lastBackup = "lastBackup"
     const val bodyIndent = "textIndent"
+    const val shareLayout = "shareLayout"
 }

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

@@ -107,7 +107,8 @@ object ReadBookConfig {
         var textSize: Int = 15,//文字大小
         var letterSpacing: Float = 1f,//字间距
         var lineSpacingExtra: Int = 12,//行间距
-        var paragraphSpacing: Int = 12,
+        var paragraphSpacing: Int = 12,//段距
+        var titleCenter: Boolean = true,//标题居中
         var paddingBottom: Int = 6,
         var paddingLeft: Int = 16,
         var paddingRight: Int = 16,

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

@@ -76,6 +76,7 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
     }
 
     private fun initData() {
+        cb_share_layout.isChecked = getPrefBoolean(PreferKey.shareLayout)
         requireContext().getPrefInt(PreferKey.pageAnim).let {
             if (it >= 0 && it < rg_page_anim.childCount) {
                 rg_page_anim.check(rg_page_anim[it].id)
@@ -90,6 +91,13 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
         chinese_converter.onChanged {
             postEvent(EventBus.UP_CONFIG, true)
         }
+        tv_title_center.onClick {
+            ReadBookConfig.durConfig.apply {
+                titleCenter = !titleCenter
+                tv_text_bold.isSelected = titleCenter
+            }
+            postEvent(EventBus.UP_CONFIG, true)
+        }
         tv_text_bold.onClick {
             ReadBookConfig.durConfig.apply {
                 textBold = !textBold
@@ -144,6 +152,11 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
                 }
             }
         }
+        cb_share_layout.onCheckedChangeListener = { checkBox, isChecked ->
+            if (checkBox.isPressed) {
+                putPrefBoolean(PreferKey.shareLayout, isChecked)
+            }
+        }
         bg0.onClick { changeBg(0) }
         bg0.onLongClick { showBgTextConfig(0) }
         bg1.onClick { changeBg(1) }
@@ -178,6 +191,7 @@ class ReadStyleDialog : DialogFragment(), FontSelectDialog.CallBack {
 
     private fun upStyle() {
         ReadBookConfig.durConfig.let {
+            tv_title_center.isSelected = it.titleCenter
             tv_text_bold.isSelected = it.textBold
             dsb_text_size.progress = it.textSize - 5
             dsb_text_letter_spacing.progress = (it.letterSpacing * 100).toInt() + 50

app/src/main/java/io/legado/app/ui/widget/checkbox/SmoothCheckBox.kt

@@ -40,7 +40,7 @@ class SmoothCheckBox @JvmOverloads constructor(
     private var mFloorUnCheckedColor = 0
     private var mChecked = false
     private var mTickDrawing = false
-    private var mListener: OnCheckedChangeListener? = null
+    var onCheckedChangeListener: ((checkBox: SmoothCheckBox, isChecked: Boolean) -> Unit)? = null
 
     init {
         val ta = context.obtainStyledAttributes(attrs, R.styleable.SmoothCheckBox)
@@ -89,9 +89,7 @@ class SmoothCheckBox @JvmOverloads constructor(
         mChecked = checked
         reset()
         invalidate()
-        if (mListener != null) {
+        onCheckedChangeListener?.invoke(this@SmoothCheckBox, mChecked)
-            mListener!!.onCheckedChanged(this@SmoothCheckBox, mChecked)
-        }
     }
 
     override fun toggle() {
@@ -114,9 +112,7 @@ class SmoothCheckBox @JvmOverloads constructor(
             } else {
                 startUnCheckedAnimation()
             }
-            if (mListener != null) {
+            onCheckedChangeListener?.invoke(this@SmoothCheckBox, mChecked)
-                mListener!!.onCheckedChanged(this@SmoothCheckBox, mChecked)
-            }
         } else {
             this.isChecked = checked
         }
@@ -308,14 +304,6 @@ class SmoothCheckBox @JvmOverloads constructor(
         }, mAnimDuration.toLong())
     }
 
-    fun setOnCheckedChangeListener(l: OnCheckedChangeListener?) {
-        mListener = l
-    }
-
-    interface OnCheckedChangeListener {
-        fun onCheckedChanged(checkBox: SmoothCheckBox?, isChecked: Boolean)
-    }
-
     companion object {
         private const val DEF_DRAW_SIZE = 25
         private const val DEF_ANIM_DURATION = 300