...

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfLoadingActivity.kt

@@ -53,6 +53,18 @@ class PdfLoadingActivity : BaseActivity<ActivityPdfLoadingBinding>() {
                 }
 
             }
+
+            DO_MERGE_PDF -> {
+                progressFinishAction = {
+                    startActivity(Intent(this, PdfActivity::class.java).apply {
+                        putExtra("path", newPath)
+                    })
+                    finish()
+                }
+                pdfPresenter.mergePdf(newPath) {
+                    isFinishBoolean = true
+                }
+            }
         }
 
         startProgress()
@@ -84,6 +96,7 @@ class PdfLoadingActivity : BaseActivity<ActivityPdfLoadingBinding>() {
 
         const val DO_SPLIT_PDF = "do_split_pdf"
         const val DO_SAVE_PDF = "do_save_pdf"
+        const val DO_MERGE_PDF = "do_merge_pdf"
     }
 
 

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfMergeActivity.kt

 package com.base.pdfviewerscannerwhite.ui.document.pdf
 
+import android.content.Intent
 import androidx.activity.addCallback
 import androidx.recyclerview.widget.ItemTouchHelper
 import com.base.pdfviewerscannerwhite.bean.DocumentBean
 import com.base.pdfviewerscannerwhite.databinding.ActivityPdfMergeBinding
 import com.base.pdfviewerscannerwhite.helper.BaseActivity
+import com.base.pdfviewerscannerwhite.ui.document.pdf.PdfLoadingActivity.Companion.DO_MERGE_PDF
+import com.base.pdfviewerscannerwhite.ui.view.DialogView.showDocumentRenameDialog
+import com.base.pdfviewerscannerwhite.utils.KotlinExt.toFormatTime2
 import com.base.pdfviewerscannerwhite.utils.LogEx
 
 class PdfMergeActivity : BaseActivity<ActivityPdfMergeBinding>() {
@@ -13,10 +17,12 @@ class PdfMergeActivity : BaseActivity<ActivityPdfMergeBinding>() {
     override val binding: ActivityPdfMergeBinding by lazy {
         ActivityPdfMergeBinding.inflate(layoutInflater)
     }
+    private lateinit var pdfPresenter: PdfPresenter
     private lateinit var adapter: PdfMergeAdapter
 
 
     override fun initView() {
+        pdfPresenter = PdfPresenter(this)
         initAdapter()
     }
 
@@ -28,13 +34,30 @@ class PdfMergeActivity : BaseActivity<ActivityPdfMergeBinding>() {
         binding.flFanhui.setOnClickListener {
             onBackPressedDispatcher.onBackPressed()
         }
+        binding.tvAdd.setOnClickListener {
+            finish()
+        }
+        binding.tvBtnNext.setOnClickListener {
+
+            showDocumentRenameDialog(name = "Merge_${System.currentTimeMillis().toFormatTime2()}", okAction = { name ->
+                startActivity(Intent(this, PdfLoadingActivity::class.java).apply {
+                    putExtra("doWhat", DO_MERGE_PDF)
+                    putExtra("newPath", pdfPresenter.createMergePdf(name))
+                })
+
+            })
+        }
     }
 
     private fun initAdapter() {
         val callBack = PdfMergeItemTouchHelperCallBack()
         val itemTouchHelper = ItemTouchHelper(callBack)
         itemTouchHelper.attachToRecyclerView(binding.rv)
-        adapter = PdfMergeAdapter(itemTouchHelper,callBack)
+        adapter = PdfMergeAdapter(itemTouchHelper, callBack)
+        adapter.removeAction = {
+            mergePdfList.remove(it)
+            binding.tvBtnNext.isEnabled = mergePdfList.isNotEmpty()
+        }
         binding.rv.adapter = adapter
 
         callBack.changeListOrder = { olderPosition, newPosition ->

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfMergeAdapter.kt

@@ -25,6 +25,7 @@ class PdfMergeAdapter(
 
 
     private val TAG = "PdfMergeAdapter"
+    var removeAction: ((item: DocumentBean) -> Unit)? = null
 
     inner class PdfMergeViewHolder(view: View) : RecyclerView.ViewHolder(view)
 
@@ -36,6 +37,11 @@ class PdfMergeAdapter(
         binding.tvName.text = file.name
         binding.tvInfo.text = file.lastModified().toFormatTime4() + " " + file.length().toFormatSize()
 
+        binding.flClose.setOnClickListener {
+            remove(item)
+            removeAction?.invoke(item)
+        }
+
         binding.ivMove.setOnTouchListener(object : View.OnTouchListener {
             override fun onTouch(v: View?, event: MotionEvent?): Boolean {
                 if (event?.action == MotionEvent.ACTION_DOWN) {

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfPresenter.kt

 package com.base.pdfviewerscannerwhite.ui.document.pdf
 
 import android.content.Context
+import android.os.Environment
 import com.artifex.mupdfdemo.MuPDFCore
 import com.artifex.mupdfdemo.OutlineActivityData
+import com.base.pdfviewerscannerwhite.R
+import com.base.pdfviewerscannerwhite.bean.DocumentBean
 import com.base.pdfviewerscannerwhite.bean.PdfPageBean
+import com.base.pdfviewerscannerwhite.ui.document.pdf.PdfMergeActivity.Companion.mergePdfList
+import com.base.pdfviewerscannerwhite.utils.LogEx
 import com.base.pdfviewerscannerwhite.utils.PdfBoxUtils
+import com.tom_roush.pdfbox.io.MemoryUsageSetting
+import com.tom_roush.pdfbox.multipdf.PDFMergerUtility
 import com.tom_roush.pdfbox.pdmodel.PDDocument
 import java.io.File
 
@@ -104,4 +111,43 @@ class PdfPresenter(
 
         val newFile = File(newPath)
     }
+
+    private fun createAppDocumentDir(): File {
+        val appName = context.resources.getString(R.string.app_name)
+        val appDir = File(Environment.getExternalStoragePublicDirectory(Environment.DIRECTORY_DOCUMENTS), appName)
+        if (!appDir.exists()) {
+            appDir.mkdirs()
+        }
+        return appDir
+    }
+
+    fun createMergePdf(name: String): String {
+        val appDir = createAppDocumentDir()
+        val mergeFile = File(appDir, "$name.pdf")
+        mergeFile.createNewFile()
+        LogEx.logDebug(TAG, "mergeFile ${mergeFile.absolutePath}")
+        return mergeFile.absolutePath
+    }
+
+    fun mergePdf(mergePath: String, finishAction: (success: Boolean) -> Unit) = Thread {
+
+        var isSuccess: Boolean = false
+        try {
+            val mergerUtility = PDFMergerUtility()
+            mergerUtility.destinationFileName = mergePath
+
+            PdfMergeActivity.mergePdfList.forEach { documentBean ->
+                mergerUtility.addSource(File(documentBean.path))
+            }
+            mergerUtility.mergeDocuments(null)
+            mergePdfList.clear()
+            LogEx.logDebug(TAG, "mergePdf finish")
+            isSuccess = true
+        } catch (e: Exception) {
+
+        }
+
+        finishAction.invoke(isSuccess)
+    }.start()
+
 }
\ No newline at end of file

app/src/main/java/com/base/pdfviewerscannerwhite/ui/document/pdf/PdfSelectActivity.kt

@@ -33,7 +33,10 @@ class PdfSelectActivity : BaseActivity<ActivityPdfSelectBinding>(), DocumentView
 
         binding.tvBtnNext.setOnClickListener {
             val selectList = adapter.items.filter { it.isSelect }
+
+            PdfMergeActivity.mergePdfList.clear()
             PdfMergeActivity.mergePdfList.addAll(selectList)
+
             startActivity(Intent(this, PdfMergeActivity::class.java))
         }
     }