优化

app/src/main/java/io/legado/app/ui/book/cache/CacheActivity.kt

@@ -1,5 +1,6 @@
 package io.legado.app.ui.book.cache
 
+import android.annotation.SuppressLint
 import android.os.Bundle
 import android.view.Menu
 import android.view.MenuItem
@@ -44,6 +45,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
     override val viewModel by viewModels<CacheViewModel>()
 
     private val exportBookPathKey = "exportBookPath"
+    private val exportTypes = arrayListOf("txt", "epub")
     lateinit var adapter: CacheAdapter
     private var booksFlowJob: Job? = null
     private var menu: Menu? = null
@@ -91,6 +93,10 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
     override fun onMenuOpened(featureId: Int, menu: Menu): Boolean {
         menu.findItem(R.id.menu_enable_replace)?.isChecked = AppConfig.exportUseReplace
         menu.findItem(R.id.menu_export_web_dav)?.isChecked = AppConfig.exportToWebDav
+        menu.findItem(R.id.menu_export_type)?.title =
+            "${getString(R.string.export_type)}(${getTypeName()})"
+        menu.findItem(R.id.menu_export_charset)?.title =
+            "${getString(R.string.export_charset)}(${AppConfig.exportCharset})"
         return super.onMenuOpened(featureId, menu)
     }
 
@@ -173,6 +179,7 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
         }
     }
 
+    @SuppressLint("NotifyDataSetChanged")
     private fun initGroupData() {
         launch {
             appDb.bookGroupDao.flowAll().collect {
@@ -309,8 +316,14 @@ class CacheActivity : VMBaseActivity<ActivityCacheBookBinding, CacheViewModel>()
         }.show()
     }
 
+    private fun getTypeName(): String {
+        return exportTypes.getOrElse(AppConfig.exportType) {
+            exportTypes[0]
+        }
+    }
+
     private fun showExportTypeConfig() {
-        selector(R.string.export_type, arrayListOf("txt", "epub")) { _, i ->
+        selector(R.string.export_type, exportTypes) { _, i ->
             AppConfig.exportType = i
         }
     }