update

app/src/main/java/com/base/filerecoveryrecyclebin/bean/RecycleBinBean.kt

@@ -4,6 +4,7 @@ import android.net.Uri
 
 data class RecycleBinBean(
     val path: String = "",
+    val backupPath: String = "",
     var deleteTime: Long = 0,
     val size: Long = 0,
     val mimeType: String = "",

app/src/main/java/com/base/filerecoveryrecyclebin/service/BackUpUtils.kt

 package com.base.filerecoveryrecyclebin.service
 
+import android.Manifest
+import android.content.pm.PackageManager
+import android.os.Build
 import android.text.TextUtils
+import android.util.Log
+import androidx.core.content.ContextCompat
+import com.base.filerecoveryrecyclebin.MyApplication
 import com.base.filerecoveryrecyclebin.activity.recyclebin.RecycleBinFileEx.getRecycleBinDir
 import com.base.filerecoveryrecyclebin.bean.RecycleBinBean
+import com.base.filerecoveryrecyclebin.help.BaseApplication
 import com.base.filerecoveryrecyclebin.utils.AppPreferences
 import com.google.gson.Gson
 import com.google.gson.reflect.TypeToken
-import com.ironsource.da
 import java.io.File
+import java.lang.Exception
 import java.util.stream.Collectors
 
 
@@ -17,10 +24,18 @@ object BackUpUtils {
 
 
     fun backupFile(src: File, path: String) {
-        val recycleBinFile = File(getRecycleBinDir(), ".\$name")
-        src.copyTo(recycleBinFile, true)
-        val binBean = RecycleBinBean(src.path, 0, src.length(), getFileExtension(src), false)
-        saveData(binBean, path)
+        if (!hasStorageReadWritePermission()) {
+            return
+        }
+        try {
+            val recycleBinFile = File(getRecycleBinDir(), ".\$name")
+            src.copyTo(recycleBinFile, true)
+            val binBean = RecycleBinBean(src.path, recycleBinFile.path,0, src.length(), getFileExtension(src), false)
+            saveData(binBean, path)
+        } catch (e: Exception) {
+
+        }
+
     }
 
     private fun getFileExtension(file: File): String {
@@ -35,6 +50,7 @@ object BackUpUtils {
     fun saveData(binBean: RecycleBinBean, path: String) {
         val hashMap = queryBackUpSp()
         hashMap.put(path, binBean)
+
         saveBackUpSp(hashMap)
     }
 
@@ -53,17 +69,19 @@ object BackUpUtils {
     }
 
     fun saveBackUpSp(hash: HashMap<String, RecycleBinBean>) {
-        AppPreferences.getInstance().put(KEY, Gson().toJson(hash))
+        val str = Gson().toJson(hash)
+        Log.d("FileObserverExample", str)
+        AppPreferences.getInstance().put(KEY, str)
     }
 
     fun getBackUpListObj(): List<RecycleBinBean>? {
         val hashMap = queryBackUpSp()
         if (hashMap.size > 0) {
-            return null
-        } else {
             val values: MutableList<RecycleBinBean>? =
                 hashMap.values.stream().collect(Collectors.toList())
             return values
+        } else {
+            return null
         }
     }
 
@@ -76,14 +94,39 @@ object BackUpUtils {
     fun deleteFile(path: String) {
         val isExists = queryFileExists(path)
         if (isExists) {
-            val hashMap =queryBackUpSp()
-           val data = hashMap[path]
+            val hashMap = queryBackUpSp()
+            val data = hashMap[path]
             if (data != null) {
-                data?.deleted =true
-                data?.deleteTime =System.currentTimeMillis()
+                data?.deleted = true
+                data?.deleteTime = System.currentTimeMillis()
                 hashMap[path] = data
+                saveBackUpSp(hashMap)
             }
 
         }
     }
+
+
+    /**
+     * 检查应用是否具有存储读写权限
+     *
+     * @param context 应用上下文
+     * @return 如果应用有权限返回 true，否则返回 false
+     */
+    fun hasStorageReadWritePermission(): Boolean {
+        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.R) {
+            return true
+        } else {
+            // 检查存储读写权限
+            val readPermission: Int = ContextCompat.checkSelfPermission(
+                BaseApplication.context,
+                Manifest.permission.READ_EXTERNAL_STORAGE
+            )
+            val writePermission: Int = ContextCompat.checkSelfPermission(
+                BaseApplication.context,
+                Manifest.permission.WRITE_EXTERNAL_STORAGE
+            )
+            return readPermission == PackageManager.PERMISSION_GRANTED && writePermission == PackageManager.PERMISSION_GRANTED
+        }
+    }
 }
\ No newline at end of file

app/src/main/java/com/base/filerecoveryrecyclebin/service/FileObserverExample.java

 package com.base.filerecoveryrecyclebin.service;
 
+import android.os.Build;
 import android.os.Environment;
 import android.os.FileObserver;
 import android.os.Handler;
@@ -52,14 +53,15 @@ public class FileObserverExample {
         fileObserver = new FileObserver(watchList, FileObserver.CREATE | FileObserver.DELETE) {
             @Override
             public void onEvent(int event, String path) {
-                Log.d(TAG,"onEvent "+ event+"  "+path);
-                if(!TextUtils.isEmpty(path)){
-                    Log.d(TAG,"path:  "+path);
+                Log.d(TAG, "onEvent " + event + "  " + path);
+                if (!TextUtils.isEmpty(path)) {
+                    Log.d(TAG, "path:  " + path);
                     handleFileEvent(path, event);
                 }
             }
         };
         fileObserver.startWatching(); // 启动观察
+        Log.d(TAG,"startObserving");
     }
 
     public void stopObserving() {
@@ -71,22 +73,23 @@ public class FileObserverExample {
 
     // 处理文件事件
     private void handleFileEvent(String path, int event) {
-        Log.d(TAG,path);
+        Log.d(TAG, path);
         // 检查文件扩展名是否在监听范围内
         if (FILE_EXTENSIONS.contains(getFileExtension(path))) {
             if (event == FileObserver.CREATE) {
-                Log.d(TAG,"CREATE");
+                Log.d(TAG, "CREATE");
                 fileHandler.post(() -> handleFileCreation(path));
             } else if (event == FileObserver.DELETE) {
+                Log.d(TAG, "DELETE:" + path);
                 BackUpUtils.INSTANCE.deleteFile(path);
             }
         }
     }
 
     // 获取文件扩展名
-    private String getFileExtension( String fileName) {
+    private String getFileExtension(String fileName) {
         if (fileName.lastIndexOf(".") != -1 && fileName.lastIndexOf(".") != 0) {
-            return "."+fileName.substring(fileName.lastIndexOf(".") + 1);
+            return "." + fileName.substring(fileName.lastIndexOf(".") + 1);
         } else {
             return "";
         }

app/src/main/java/com/base/filerecoveryrecyclebin/service/StayNotificationService.kt

@@ -65,8 +65,8 @@ class StayNotificationService : Service() {
     override fun onStartCommand(intent: Intent?, flags: Int, startId: Int): Int {
         if(fileObserver == null){
             fileObserver = FileObserverExample()
+            fileObserver?.startObserving()
         }
-        fileObserver?.startObserving()
         if (!isRunning) {
             val notification = createPermanentNotification(applicationContext)
             startForeground(1, notification)