优化

app/src/main/java/io/legado/app/ui/book/toc/ChapterListActivity.kt

@@ -65,7 +65,7 @@ class ChapterListActivity : VMBaseActivity<ChapterListViewModel>(R.layout.activi
         return super.onCompatCreateOptionsMenu(menu)
     }
 
-    private inner class TabFragmentPageAdapter internal constructor(fm: FragmentManager) :
+    private inner class TabFragmentPageAdapter(fm: FragmentManager) :
         FragmentPagerAdapter(fm, BEHAVIOR_RESUME_ONLY_CURRENT_FRAGMENT) {
         override fun getItem(position: Int): Fragment {
             return when (position) {

app/src/main/java/io/legado/app/ui/welcome/WelcomeActivity.kt

@@ -32,7 +32,7 @@ open class WelcomeActivity : BaseActivity(R.layout.activity_welcome) {
 
     private fun init() {
         Coroutine.async {
-            //清楚过期数据
+            //清除过期数据
             App.db.searchBookDao()
                 .clearExpired(System.currentTimeMillis() - TimeUnit.DAYS.toMillis(1))
             //初始化简繁转换引擎