【修复】修复垃圾清理开始扫描开始会停止一会儿的体验问题

app/src/main/java/com/base/scanqrclear/luma/CleanJunkActivity.kt

@@ -79,7 +79,7 @@ class CleanJunkActivity : BaseActivity2() {
         binding.tvClean.visibility = View.GONE
         isDisableBack = true
         lifecycleScope.launch(Dispatchers.IO) {
-            val emptyFoldersDeferred = async { FileHelps.findEmptyFolders() }
+            val emptyFoldersDeferred = async { FileHelps.findEmptyFolders(lifecycleScope) }
             val filesDeferred = async { MediaHelps.findSpecifiedFiles(this@CleanJunkActivity) }
             val emptyFolder = emptyFoldersDeferred.await()
             val files = filesDeferred.await()

app/src/main/java/com/base/scanqrclear/luma/FileHelps.kt

 package com.base.scanqrclear.luma
 
 import android.os.Environment
+import androidx.lifecycle.LifecycleCoroutineScope
 import com.base.scanqrclear.bean.FileBean
+import kotlinx.coroutines.Dispatchers
+import kotlinx.coroutines.joinAll
+import kotlinx.coroutines.launch
+import kotlinx.coroutines.withContext
 import java.io.File
 
 object FileHelps {
@@ -16,13 +21,41 @@ object FileHelps {
         return list
     }
 
-    fun findEmptyFolders(): MutableList<FileBean> {
-        val externalStorageDir = Environment.getExternalStorageDirectory()
+    suspend fun findEmptyFolders(lifecycleScope: LifecycleCoroutineScope): MutableList<FileBean> {
+        val rootDir = Environment.getExternalStorageDirectory()
         val filters = arrayOf("/storage/emulated/0/Android/data", "/storage/emulated/0/Android/obb")
-        val emptyFolders = getAllEmptyFolders(externalStorageDir, filters)
+        val emptyFolders = mutableListOf<File>()
+
+        // 使用协程并发遍历文件夹
+        withContext(Dispatchers.IO) {
+            findEmptyFolders(lifecycleScope, rootDir, filters, emptyFolders)
+        }
+
         return emptyFolders.map { FileBean(it.name, it.path, length = 4 * 1024) }.toMutableList()
     }
 
+    private suspend fun findEmptyFolders(lifecycleScope: LifecycleCoroutineScope, folder: File, filters: Array<String>, emptyFolders: MutableList<File>) {
+        val files = folder.listFiles() ?: return
+
+        if (files.isEmpty() && !filters.contains(folder.path)) {
+            emptyFolders.add(folder)
+            return
+        }
+
+        files.filter { it.isDirectory }.map { file ->
+            lifecycleScope.launch(Dispatchers.IO) {
+                findEmptyFolders(lifecycleScope, file, filters, emptyFolders)
+            }
+        }.joinAll() // 等待所有子任务完成
+    }
+
+//    fun findEmptyFolders(): MutableList<FileBean> {
+//        val externalStorageDir = Environment.getExternalStorageDirectory()
+//        val filters = arrayOf("/storage/emulated/0/Android/data", "/storage/emulated/0/Android/obb")
+//        val emptyFolders = getAllEmptyFolders(externalStorageDir, filters)
+//        return emptyFolders.map { FileBean(it.name, it.path, length = 4 * 1024) }.toMutableList()
+//    }
+
     fun findTempFiles(): MutableList<FileBean> {
         val rootDir = Environment.getExternalStorageDirectory()
         return findFilesRecursive(rootDir, arrayOf(".temp"))
@@ -64,6 +97,7 @@ object FileHelps {
         return "${Environment.getExternalStorageDirectory()}/$relativePath"
     }
 
+
     private fun getAllEmptyFolders(root: File, filters: Array<String>): List<File> {
         return root.walk()
             .filter {