[新增] 清理TTS缓存(@Luoyacheng)

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

@@ -31,6 +31,7 @@ import io.legado.app.ui.association.ImportHttpTtsDialog
 import io.legado.app.ui.file.HandleFileContract
 import io.legado.app.ui.login.SourceLoginActivity
 import io.legado.app.utils.ACache
+import io.legado.app.utils.FileUtils
 import io.legado.app.utils.GSON
 import io.legado.app.utils.fromJsonObject
 import io.legado.app.utils.gone
@@ -40,6 +41,7 @@ import io.legado.app.utils.sendToClip
 import io.legado.app.utils.showDialogFragment
 import io.legado.app.utils.splitNotBlank
 import io.legado.app.utils.startActivity
+import io.legado.app.utils.toastOnUi
 import io.legado.app.utils.viewbindingdelegate.viewBinding
 import io.legado.app.utils.visible
 import kotlinx.coroutines.Dispatchers.IO
@@ -47,6 +49,7 @@ import kotlinx.coroutines.flow.catch
 import kotlinx.coroutines.flow.conflate
 import kotlinx.coroutines.flow.flowOn
 import kotlinx.coroutines.launch
+import java.io.File
 
 /**
  * tts引擎管理
@@ -175,6 +178,7 @@ class SpeakEngineDialog() : BaseBottomSheetDialogFragment(R.layout.dialog_recycl
 
     override fun onMenuItemClick(item: MenuItem?): Boolean {
         when (item?.itemId) {
+            R.id.menu_clear -> clearCache()
             R.id.menu_add -> showDialogFragment<HttpTtsEditDialog>()
             R.id.menu_default -> viewModel.importDefault()
             R.id.menu_import_local -> importDocResult.launch {
@@ -232,6 +236,18 @@ class SpeakEngineDialog() : BaseBottomSheetDialogFragment(R.layout.dialog_recycl
         adapter.notifyItemRangeChanged(adapter.getHeaderCount(), adapter.itemCount)
     }
 
+    fun clearCache() {
+        execute {
+            ReadAloud.upReadAloudClass()
+            val ttsFolderPath = "${requireContext().cacheDir.absolutePath}${File.separator}httpTTS${File.separator}"
+            FileUtils.listDirsAndFiles(ttsFolderPath)?.forEach {
+                FileUtils.delete(it.absolutePath)
+            }
+            toastOnUi(R.string.clear_cache_success)
+        }
+
+    }
+
     inner class Adapter(context: Context) :
         RecyclerAdapter<HttpTTS, ItemHttpTtsBinding>(context) {