添加解密工具。优化结果页面。

app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfPickerActivity.kt

@@ -15,6 +15,7 @@ import com.all.pdfreader.pro.app.model.SortConfig
 import com.all.pdfreader.pro.app.room.entity.PdfDocumentEntity
 import com.all.pdfreader.pro.app.room.repository.PdfRepository
 import com.all.pdfreader.pro.app.ui.adapter.PdfAdapter
+import com.all.pdfreader.pro.app.ui.dialog.PdfRemovePasswordDialog
 import com.all.pdfreader.pro.app.ui.dialog.PdfSetPasswordDialog
 import com.all.pdfreader.pro.app.util.AppUtils.setClickWithAnimation
 import com.all.pdfreader.pro.app.util.AppUtils.setOnSingleClickListener
@@ -93,7 +94,14 @@ class PdfPickerActivity : BaseActivity() {
                     }
 
                     PdfPickerSource.UNLOCK -> {
-
+                        PdfRemovePasswordDialog(pdf.filePath, onOkClick = { password ->
+                            val intent = PdfResultActivity.createIntentLock(
+                                this, pdf.filePath, password,
+                                PdfPickerSource.UNLOCK
+                            )
+                            startActivity(intent)
+                            finish()
+                        }).show(supportFragmentManager, "PdfRemovePasswordDialog")
                     }
 
                     PdfPickerSource.TO_IMAGES -> {}

app/src/main/java/com/all/pdfreader/pro/app/ui/act/PdfResultActivity.kt

@@ -15,10 +15,10 @@ import com.all.pdfreader.pro.app.databinding.ActivityPdfSplitResultBinding
 import com.all.pdfreader.pro.app.model.PdfPickerSource
 import com.all.pdfreader.pro.app.model.PdfSelectedPagesItem
 import com.all.pdfreader.pro.app.model.PdfSplitResultItem
-import com.all.pdfreader.pro.app.room.repository.PdfRepository
 import com.all.pdfreader.pro.app.ui.adapter.PdfResultAdapter
 import com.all.pdfreader.pro.app.ui.dialog.PromptDialogFragment
 import com.all.pdfreader.pro.app.util.AppUtils
+import com.all.pdfreader.pro.app.util.AppUtils.generateFastThumbnail
 import com.all.pdfreader.pro.app.util.FileUtils.toUnderscoreDateTime
 import com.all.pdfreader.pro.app.util.PdfScanner
 import com.all.pdfreader.pro.app.util.PdfSecurityUtils
@@ -111,7 +111,7 @@ class PdfResultActivity : BaseActivity() {
                     finish()
                     return
                 }
-            } else if (source == PdfPickerSource.LOCK) {
+            } else if (source == PdfPickerSource.LOCK || source == PdfPickerSource.UNLOCK) {
                 if (filepath.isEmpty() || password.isEmpty()) {
                     showToast(getString(R.string.pdf_loading_failed))
                     finish()
@@ -166,8 +166,7 @@ class PdfResultActivity : BaseActivity() {
                                 binding.progressBar.progress = percent
                             }
                         })?.let { resultFile ->
-                        val thumbnails =
+                        val thumbnails = generateFastThumbnail(this@PdfResultActivity, resultFile)
-                            AppUtils.generateFastThumbnail(this@PdfResultActivity, resultFile)
                         val result = PdfSplitResultItem(resultFile.absolutePath, thumbnails, false)
                         pdfScanner.addNewPdfToDatabase(result.filePath, result.thumbnailPath) {
                             resultList.add(result)
@@ -198,8 +197,7 @@ class PdfResultActivity : BaseActivity() {
                                 binding.progressTv.text = "$progressPercent"
                             }
                         })?.let { resultFile ->
-                        val thumbnails =
+                        val thumbnails = generateFastThumbnail(this@PdfResultActivity, resultFile)
-                            AppUtils.generateFastThumbnail(this@PdfResultActivity, resultFile)
                         val result = PdfSplitResultItem(resultFile.absolutePath, thumbnails, false)
                         pdfScanner.addNewPdfToDatabase(result.filePath, result.thumbnailPath) {
                             resultList.add(result)
@@ -214,11 +212,23 @@ class PdfResultActivity : BaseActivity() {
                     binding.progressTv.text = "$progress"
                 }.let { it ->
                     if (it) {
-                        PdfRepository.getInstance().updateIsPassword(filepath, true)
+                        pdfRepository.updateIsPassword(filepath, true)
                     }
                     val result = PdfSplitResultItem(filePath = filepath, isPassword = true)
                     resultList.add(result)
                 }
+            } else if (source == PdfPickerSource.UNLOCK) {
+                binding.congratulationsDesc.text = getString(R.string.remove_password_successfully)
+                PdfSecurityUtils.removePasswordFromPdfWithProgress(filepath, password) { progress ->
+                    binding.progressTv.text = "$progress"
+                }?.let { it ->
+                    val result = PdfSplitResultItem(
+                        filePath = filepath,
+                        thumbnailPath = it,
+                        isPassword = false
+                    )
+                    resultList.add(result)
+                }
             }
             withContext(Dispatchers.Main) {
                 binding.processingLayout.visibility = View.GONE
@@ -227,7 +237,7 @@ class PdfResultActivity : BaseActivity() {
                     resultList[0].isSelected = true
                 }
                 adapter.updateAdapter()
-                isProcessing = false//拆分结束
+                isProcessing = false
                 exitDialog?.dismissAllowingStateLoss()
                 exitDialog = null
             }

app/src/main/java/com/all/pdfreader/pro/app/ui/dialog/ListMoreDialogFragment.kt

@@ -2,7 +2,6 @@ package com.all.pdfreader.pro.app.ui.dialog
 
 import android.net.Uri
 import android.os.Bundle
-import android.util.Log
 import android.view.LayoutInflater
 import android.view.View
 import android.view.ViewGroup
@@ -195,7 +194,9 @@ class ListMoreDialogFragment(val filePath: String) : BottomSheetDialogFragment()
         }
         binding.setPasswordBtn.setOnClickListener {
             if (pdfDocument.isPassword) {
-                PdfRemovePasswordDialog().show(parentFragmentManager, "PdfRemovePasswordDialog")
+                PdfRemovePasswordDialog(pdfDocument.filePath, onOkClick = { password ->
+                    viewModel.removePassword(pdfDocument.filePath, password)
+                }).show(parentFragmentManager, "PdfRemovePasswordDialog")
             } else {
                 PdfSetPasswordDialog(onOkClick = { password ->
                     viewModel.setPassword(pdfDocument.filePath, password)

app/src/main/java/com/all/pdfreader/pro/app/ui/dialog/PdfRemovePasswordDialog.kt

@@ -7,22 +7,19 @@ import android.view.View
 import android.view.ViewGroup
 import androidx.core.graphics.drawable.toDrawable
 import androidx.fragment.app.DialogFragment
-import androidx.fragment.app.activityViewModels
 import com.all.pdfreader.pro.app.R
 import com.all.pdfreader.pro.app.databinding.DialogPdfRemovePasswordBinding
-import com.all.pdfreader.pro.app.room.entity.PdfDocumentEntity
 import com.all.pdfreader.pro.app.util.AppUtils.showKeyboard
 import com.all.pdfreader.pro.app.util.FileUtils.isPdfPasswordCorrect
 import com.all.pdfreader.pro.app.util.ToastUtils
-import com.all.pdfreader.pro.app.viewmodel.PdfViewModel
 import java.io.File
 
-class PdfRemovePasswordDialog() : DialogFragment(
+class PdfRemovePasswordDialog(
-
+    val filePath: String,
-) {
+    val onOkClick: (password: String) -> Unit = {}
+) :
+    DialogFragment() {
     private lateinit var binding: DialogPdfRemovePasswordBinding
-    private val viewModel: PdfViewModel by activityViewModels()
-    private lateinit var pdfDocument: PdfDocumentEntity
 
     override fun onCreateView(
         inflater: LayoutInflater, container: ViewGroup?, savedInstanceState: Bundle?
@@ -46,14 +43,8 @@ class PdfRemovePasswordDialog() : DialogFragment(
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         super.onViewCreated(view, savedInstanceState)
-        viewModel.pdfDocument.value?.let {
-            pdfDocument = it
         binding.etPassword.showKeyboard()
         setupListeners()
-        } ?: run {
-            showToast(getString(R.string.file_not))
-            dismiss()
-        }
     }
 
     private fun setupListeners() {
@@ -63,8 +54,8 @@ class PdfRemovePasswordDialog() : DialogFragment(
 
         binding.tvConfirm.setOnClickListener {
             val password = binding.etPassword.text.toString()
-            if (isPdfPasswordCorrect(requireActivity(), File(pdfDocument.filePath), password)) {
+            if (isPdfPasswordCorrect(requireActivity(), File(filePath), password)) {
-                viewModel.removePassword(pdfDocument.filePath, password)
+                onOkClick(password)
                 dismiss()
             } else {
                 binding.tilPassword.error = getString(R.string.incorrect_password)

app/src/main/java/com/all/pdfreader/pro/app/ui/fragment/ToolsFrag.kt

@@ -37,5 +37,9 @@ class ToolsFrag : Fragment() {
             val intent = PdfPickerActivity.createIntent(requireActivity(), PdfPickerSource.LOCK)
             startActivity(intent)
         }
+        binding.unLockBtn.setOnClickListener {
+            val intent = PdfPickerActivity.createIntent(requireActivity(), PdfPickerSource.UNLOCK)
+            startActivity(intent)
+        }
     }
 }

app/src/main/java/com/all/pdfreader/pro/app/util/PdfSecurityUtils.kt

@@ -1,6 +1,9 @@
 package com.all.pdfreader.pro.app.util
 
 import android.graphics.pdf.PdfDocument
+import com.all.pdfreader.pro.app.PRApp
+import com.all.pdfreader.pro.app.room.repository.PdfRepository
+import com.all.pdfreader.pro.app.util.AppUtils.generateFastThumbnail
 import com.tom_roush.pdfbox.pdmodel.PDDocument
 import com.tom_roush.pdfbox.pdmodel.encryption.AccessPermission
 import com.tom_roush.pdfbox.pdmodel.encryption.StandardProtectionPolicy
@@ -45,7 +48,6 @@ object PdfSecurityUtils {
         val job = launch {
             while (isActive && progress < 98) {
                 delay(50)
-                // 专业曲线：前 80%慢，后 20%快
                 progress += when {
                     progress < 80 -> 1  // 前 80% 每次 +1
                     progress < 90 -> 2  // 80~90% 每次 +2
@@ -63,9 +65,17 @@ object PdfSecurityUtils {
         // 停止假进度
         job.cancel()
 
-        // 最终完成直接 100%
+        // 最后 98 -> 100 有一个 1 秒左右的平滑视觉过渡
+        val finalStart = progress
+        val finalEnd = 100
+        val steps = (finalEnd - finalStart).coerceAtLeast(2) // 至少两步
+        val delayPerStep = 1000L / steps
+
+        for (p in finalStart..finalEnd) {
             withContext(Dispatchers.Main) {
-            onProgress(100)
+                onProgress(p)
+            }
+            delay(delayPerStep)
         }
         success
     }
@@ -84,4 +94,61 @@ object PdfSecurityUtils {
         }
     }
 
+    suspend fun removePasswordFromPdfWithProgress(
+        inputFilePath: String,
+        password: String,
+        onProgress: (Int) -> Unit
+    ): String? = withContext(Dispatchers.IO) {
+        var newThumbnail: String? = null
+        var success = false
+        var progress = 0
+
+        // 启动假进度
+        val job = launch {
+            while (isActive && progress < 98) {
+                delay(50)
+                progress += when {
+                    progress < 80 -> 1  // 前 80% 每次 +1
+                    progress < 90 -> 2  // 80~90% 每次 +2
+                    else -> 3           // 90~98% 每次 +3
+                }
+                if (progress > 98) progress = 98
+                withContext(Dispatchers.Main) {
+                    onProgress(progress)
+                }
+            }
+        }
+
+        // 执行移除密码操作
+        success = removePasswordFromPdf(inputFilePath, password)
+        if (success) {
+            val pdfRepository = PdfRepository.getInstance()
+            pdfRepository.updateIsPassword(inputFilePath, false)
+            newThumbnail = generateFastThumbnail(PRApp.getContext(), File(inputFilePath))
+            val document = pdfRepository.getDocumentByPath(inputFilePath)
+            if (document?.thumbnailPath.isNullOrEmpty()) {
+                if (!newThumbnail.isNullOrEmpty() && inputFilePath != newThumbnail) {
+                    pdfRepository.updateThumbnailPath(inputFilePath, newThumbnail)
+                }
+            }
+        }
+        // 停止假进度
+        job.cancel()
+
+        // 最后 98 -> 100 平滑过渡 1 秒
+        val finalStart = progress
+        val finalEnd = 100
+        val steps = (finalEnd - finalStart).coerceAtLeast(2)
+        val delayPerStep = 1000L / steps
+
+        for (p in finalStart..finalEnd) {
+            withContext(Dispatchers.Main) {
+                onProgress(p)
+            }
+            delay(delayPerStep)
+        }
+
+        newThumbnail
+    }
+
 }