feat: 优化代码

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

@@ -35,6 +35,7 @@ import io.legado.app.ui.book.read.config.BgTextConfigDialog.Companion.TEXT_COLOR
 import io.legado.app.ui.book.read.page.ChapterProvider
 import io.legado.app.ui.book.read.page.PageView
 import io.legado.app.ui.book.read.page.delegate.PageDelegate
+import io.legado.app.ui.book.read.page.entities.TextChar
 import io.legado.app.ui.book.source.edit.BookSourceEditActivity
 import io.legado.app.ui.changesource.ChangeSourceDialog
 import io.legado.app.ui.chapterlist.ChapterListActivity
@@ -389,6 +390,11 @@ class ReadBookActivity : VMBaseActivity<ReadBookViewModel>(R.layout.activity_boo
         }
     }
 
+    override fun selectText(textChar: TextChar) {
+        cursor_left
+        cursor_right
+    }
+
     override fun showReadAloudDialog() {
         ReadAloudDialog().show(supportFragmentManager, "readAloud")
     }

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

@@ -11,6 +11,7 @@ import io.legado.app.help.ReadBookConfig
 import io.legado.app.service.help.ReadBook
 import io.legado.app.ui.book.read.page.delegate.*
 import io.legado.app.ui.book.read.page.entities.TextChapter
+import io.legado.app.ui.book.read.page.entities.TextChar
 import io.legado.app.utils.activity
 import io.legado.app.utils.getPrefInt
 
@@ -241,6 +242,8 @@ class PageView(context: Context, attrs: AttributeSet) :
 
     interface CallBack {
 
+        val isInitFinish: Boolean
+
         /**
          * 保存页数
          */
@@ -251,8 +254,8 @@ class PageView(context: Context, attrs: AttributeSet) :
          */
         fun clickCenter()
 
-        val isInitFinish: Boolean
-
         fun screenOffTimerStart()
+
+        fun selectText(textChar: TextChar)
     }
 }

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

@@ -268,6 +268,9 @@ abstract class PageDelegate(protected val pageView: PageView) :
 
     override fun onLongPress(e: MotionEvent) {
         val textChar = curPage.selectText(e)
+        textChar?.let {
+            pageView.callBack?.selectText(it)
+        }
     }
 
     /**