初始化

app/src/main/java/com/base/pdfreader2/bean/ConstObject.kt

@@ -19,6 +19,11 @@ object ConstObject {
     const val RECENT_DATA_TYPE = "recent"
     const val BOOKMARK_DATA_TYPE = "bookmark"
 
+    const val UI_SORT_LAST_MODIFIED = "ui_sort_last_modified"
+    const val UI_SORT_FINAL_MODIFIED = "ui_sort_final_modified"
+    const val UI_SORT_NAME_A_Z = "ui_sort_name_a_z"
+    const val UI_SORT_NAME_Z_A = "ui_sort_name_z_a"
+
 
     var haveSaveDemo = false
         get() {

app/src/main/java/com/base/pdfreader2/ui/main/DocumentAdapter.kt

 package com.base.pdfreader2.ui.main
 
 import android.annotation.SuppressLint
-import android.app.Activity
 import android.content.Context
 import android.view.View
 import android.view.ViewGroup

app/src/main/java/com/base/pdfreader2/ui/main/DocumentFragment.kt

 package com.base.pdfreader2.ui.main
 
+import android.annotation.SuppressLint
 import androidx.core.view.isVisible
 import androidx.lifecycle.lifecycleScope
 import com.base.pdfreader2.bean.ConstObject
@@ -73,8 +74,8 @@ class DocumentFragment() : BaseFragment<FragmentDocumentBinding>() {
         val list = documentPresenter.getBookmarkDocument(type)
         lifecycleScope.launch(Dispatchers.Main) {
             binding.llEmpty.isVisible = list.isEmpty()
-            adapter.submitList(list)
             binding.swipeRefreshLayout.isRefreshing = false
+            adapter.submitList(documentPresenter.sortByMode(list))
         }
     }
 
@@ -82,8 +83,25 @@ class DocumentFragment() : BaseFragment<FragmentDocumentBinding>() {
         val list = documentPresenter.getAllDocument(type)
         launch(Dispatchers.Main) {
             binding.llEmpty.isVisible = list.isEmpty()
-            adapter.submitList(list)
             binding.swipeRefreshLayout.isRefreshing = false
+            adapter.submitList(documentPresenter.sortByMode(list))
+        }
+    }
+
+    @SuppressLint("NotifyDataSetChanged")
+    fun changeSelectUi(select: Boolean) {
+        if (isVisible) {
+            adapter.items.forEach {
+                if (select) {
+                    it.uiType = 1
+                    binding.swipeRefreshLayout.isEnabled = false
+                } else {
+                    it.isSelect = false
+                    it.uiType = 0
+                    binding.swipeRefreshLayout.isEnabled = true
+                }
+            }
+            adapter.notifyDataSetChanged()
         }
     }
 

app/src/main/java/com/base/pdfreader2/ui/main/DocumentPresenter.kt

@@ -2,11 +2,15 @@ package com.base.pdfreader2.ui.main
 
 import android.content.Context
 import com.base.pdfreader2.bean.ConstObject
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_FINAL_MODIFIED
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_NAME_A_Z
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_NAME_Z_A
 import com.base.pdfreader2.bean.DocumentBean
 import com.base.pdfreader2.bean.DocumentBean.Companion.TYPE_EXCEL
 import com.base.pdfreader2.bean.DocumentBean.Companion.TYPE_PDF
 import com.base.pdfreader2.bean.DocumentBean.Companion.TYPE_PPT
 import com.base.pdfreader2.bean.DocumentBean.Companion.TYPE_WORD
+import com.base.pdfreader2.ui.view.DialogView.SortMode
 import com.base.pdfreader2.utils.AssetUtils.saveAssetsFile
 import com.base.pdfreader2.utils.KotlinExt.toFormatTime3
 import com.base.pdfreader2.utils.LogEx
@@ -181,5 +185,25 @@ class DocumentPresenter(
         return new
     }
 
+    fun sortByMode(list: List<DocumentBean>): List<DocumentBean> {
+        when (SortMode) {
+            ConstObject.UI_SORT_LAST_MODIFIED -> {
+                return list.sortedByDescending { File(it.path).lastModified() }
+            }
+
+            UI_SORT_FINAL_MODIFIED -> {
+                return list.sortedBy { File(it.path).lastModified() }
+            }
+
+            UI_SORT_NAME_A_Z -> {
+                return list.sortedBy { File(it.path).name }
+            }
+            UI_SORT_NAME_Z_A -> {
+                return list.sortedByDescending { File(it.path).name }
+            }
+
+        }
+        return list
+    }
 
 }
\ No newline at end of file

app/src/main/java/com/base/pdfreader2/ui/main/MainActivity.kt

@@ -2,6 +2,7 @@ package com.base.pdfreader2.ui.main
 
 import android.graphics.Color
 import android.view.View
+import androidx.activity.OnBackPressedCallback
 import androidx.core.content.ContextCompat
 import androidx.fragment.app.Fragment
 import androidx.viewpager2.adapter.FragmentStateAdapter
@@ -15,12 +16,20 @@ import com.base.pdfreader2.bean.ConstObject.RECENT_DATA_TYPE
 import com.base.pdfreader2.bean.DocumentBean
 import com.base.pdfreader2.databinding.ActivityMainBinding
 import com.base.pdfreader2.helper.BaseActivity
+import com.base.pdfreader2.ui.view.DialogView.showSortDialog
 import com.base.pdfreader2.utils.BarUtils
+import com.base.pdfreader2.utils.LogEx
 import com.base.pdfreader2.utils.PermissionUtils.checkStorePermission
 import com.base.pdfreader2.utils.PermissionUtils.requestStoragePermission
 
+const val UI_MODE_NORMAL = "ui_mode_normal"
+const val UI_MODE_SELECT = "ui_mode_select"
+const val UI_MODE_SEARCH = "ui_mode_search"
+
 class MainActivity : BaseActivity<ActivityMainBinding>() {
 
+    private val TAG = "MainActivity"
+
     override val binding: ActivityMainBinding by lazy {
         ActivityMainBinding.inflate(layoutInflater)
     }
@@ -49,6 +58,7 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
     var dataType: String = DOCUMENT_DATA_TYPE
 
     private lateinit var pageAdapter: FragmentStateAdapter
+    var uiMode = UI_MODE_NORMAL
 
     override fun initView() {
         BarUtils.setStatusBarLightMode(this, !ConstObject.modeNight)
@@ -69,8 +79,29 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         binding.llDocument.isSelected = true
     }
 
+    //OnBackPressedCallback 并将 isEnabled 设置为 false 时，默认的返回键行为将被禁用。
+    lateinit var callback: OnBackPressedCallback
     override fun initListener() {
         super.initListener()
+
+        callback = object : OnBackPressedCallback(false) {
+            override fun handleOnBackPressed() {
+                LogEx.logDebug(TAG, "handleOnBackPressed")
+
+
+                if (uiMode == UI_MODE_SELECT) {
+                    changeSelectUI(false)
+                }
+                if (uiMode == UI_MODE_SEARCH) {
+//                  changeSearchUI(false)
+                }
+            }
+        }
+        onBackPressedDispatcher.addCallback(callback)
+        binding.flFanhui.setOnClickListener {
+            onBackPressedDispatcher.onBackPressed()
+        }
+
         binding.llDocument.setOnClickListener {
             dataType = DOCUMENT_DATA_TYPE
             changeDocumentUI()
@@ -90,9 +121,58 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
             changeToolUI()
         }
 
+        binding.ivPaixu.setOnClickListener {
+            showSortDialog {
+                currentPage.refreshData()
+            }
+        }
+        binding.ivSelect.setOnClickListener {
+            changeSelectUI(true)
+        }
 
     }
 
+    private fun changeSelectUI(show: Boolean) {
+        if (show) {
+            uiMode = UI_MODE_SELECT
+            binding.viewPager2.isUserInputEnabled = false
+            callback.isEnabled = true
+            binding.ivPaixu.visibility = View.INVISIBLE
+            binding.tvTittle.visibility = View.INVISIBLE
+            binding.ivSearch.visibility = View.INVISIBLE
+            binding.ivSelect.visibility = View.INVISIBLE
+
+            binding.llDocument.visibility = View.INVISIBLE
+            binding.llRecent.visibility = View.INVISIBLE
+            binding.llBookmark.visibility = View.INVISIBLE
+            binding.llTool.visibility = View.INVISIBLE
+
+            binding.llDelete.visibility = View.VISIBLE
+            binding.llShare.visibility = View.VISIBLE
+            binding.flFanhui.visibility = View.VISIBLE
+
+            currentPage.changeSelectUi(true)
+        } else {
+            binding.viewPager2.isUserInputEnabled = true
+            callback.isEnabled = false
+            binding.ivPaixu.visibility = View.VISIBLE
+            binding.ivSearch.visibility = View.VISIBLE
+            binding.tvTittle.visibility = View.VISIBLE
+            binding.ivSelect.visibility = View.VISIBLE
+
+            binding.llDocument.visibility = View.VISIBLE
+            binding.llRecent.visibility = View.VISIBLE
+            binding.llBookmark.visibility = View.VISIBLE
+            binding.llTool.visibility = View.VISIBLE
+
+            binding.llDelete.visibility = View.INVISIBLE
+            binding.llShare.visibility = View.INVISIBLE
+            binding.flFanhui.visibility = View.GONE
+
+            currentPage.changeSelectUi(false)
+        }
+    }
+
 
     private fun disSelectBottomNav() {
         binding.llDocument.isSelected = false

app/src/main/java/com/base/pdfreader2/ui/view/DialogView.kt

+package com.base.pdfreader2.ui.view
+
+import android.content.Context
+import android.graphics.Color
+import android.view.LayoutInflater
+import android.view.View
+import com.base.pdfreader2.R
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_FINAL_MODIFIED
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_LAST_MODIFIED
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_NAME_A_Z
+import com.base.pdfreader2.bean.ConstObject.UI_SORT_NAME_Z_A
+import com.base.pdfreader2.databinding.DialogSortBinding
+import com.google.android.material.bottomsheet.BottomSheetBehavior
+import com.google.android.material.bottomsheet.BottomSheetDialog
+
+object DialogView {
+
+    var SortMode = UI_SORT_LAST_MODIFIED
+    fun Context.showSortDialog(okAction: () -> Unit) {
+        val dialog = BottomSheetDialog(this, R.style.BottomSheetDialog)
+        val binding = DialogSortBinding.inflate(LayoutInflater.from(this))
+        dialog.setContentView(binding.root)
+        dialog.setCanceledOnTouchOutside(false)
+
+        dialog.show()
+
+        val parentView = binding.root.parent as View
+        val behavior = BottomSheetBehavior.from(parentView)
+        //展开
+        behavior.state = BottomSheetBehavior.STATE_EXPANDED
+
+        val showSortUI: (mode: String) -> Unit = { mode ->
+            when (mode) {
+                UI_SORT_LAST_MODIFIED -> {
+                    binding.iv1.visibility = View.VISIBLE
+                    binding.tv1.setTextColor(Color.parseColor("#00B8DE"))
+                }
+
+                UI_SORT_FINAL_MODIFIED -> {
+                    binding.iv2.visibility = View.VISIBLE
+                    binding.tv2.setTextColor(Color.parseColor("#00B8DE"))
+                }
+
+                UI_SORT_NAME_A_Z -> {
+                    binding.iv3.visibility = View.VISIBLE
+                    binding.tv3.setTextColor(Color.parseColor("#00B8DE"))
+                }
+
+                UI_SORT_NAME_Z_A -> {
+                    binding.iv4.visibility = View.VISIBLE
+                    binding.tv4.setTextColor(Color.parseColor("#00B8DE"))
+                }
+            }
+        }
+        val resetUI = {
+            binding.iv1.visibility = View.INVISIBLE
+            binding.iv2.visibility = View.INVISIBLE
+            binding.iv3.visibility = View.INVISIBLE
+            binding.iv4.visibility = View.INVISIBLE
+
+            binding.tv1.setTextColor(Color.parseColor("#333333"))
+            binding.tv2.setTextColor(Color.parseColor("#333333"))
+            binding.tv3.setTextColor(Color.parseColor("#333333"))
+            binding.tv4.setTextColor(Color.parseColor("#333333"))
+        }
+
+        showSortUI.invoke(SortMode)
+
+        var temp: String = SortMode
+        binding.llLastModified.setOnClickListener {
+            temp = UI_SORT_LAST_MODIFIED
+            resetUI.invoke()
+            showSortUI.invoke(temp)
+        }
+        binding.llFinalModified.setOnClickListener {
+            temp = UI_SORT_FINAL_MODIFIED
+            resetUI.invoke()
+            showSortUI.invoke(temp)
+        }
+        binding.llNameAZ.setOnClickListener {
+            temp = UI_SORT_NAME_A_Z
+            resetUI.invoke()
+            showSortUI.invoke(temp)
+        }
+        binding.llNameZA.setOnClickListener {
+            temp = UI_SORT_NAME_Z_A
+            resetUI.invoke()
+            showSortUI.invoke(temp)
+        }
+        binding.tvCancel.setOnClickListener {
+            dialog.dismiss()
+        }
+        binding.tvOk.setOnClickListener {
+            dialog.dismiss()
+            SortMode = temp
+            okAction.invoke()
+        }
+    }
+}
\ No newline at end of file

app/src/main/res/drawable/bg_00b8de_10.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#00B8DE" />
+    <corners android:radius="10dp" />
+</shape>
\ No newline at end of file

app/src/main/res/drawable/bg_f1f2f6_10.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <solid android:color="#F1F2F6"/>
+    <corners android:radius="10dp"/>
+</shape>
\ No newline at end of file

app/src/main/res/drawable/bg_f3f3f3_tlr25.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#F3F3F3" />
+    <corners
+        android:topLeftRadius="25dp"
+        android:topRightRadius="25dp" />
+</shape>
\ No newline at end of file

app/src/main/res/layout/activity_main.xml

@@ -28,6 +28,23 @@
                 android:layout_width="match_parent"
                 android:layout_height="wrap_content">
 
+                <FrameLayout
+                    android:id="@+id/fl_fanhui"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:padding="15dp"
+                    android:visibility="gone"
+                    app:layout_constraintBottom_toBottomOf="parent"
+                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintTop_toTopOf="parent">
+
+                    <ImageView
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:src="@mipmap/fanhui_w"
+                        tools:ignore="ContentDescription" />
+                </FrameLayout>
+
                 <TextView
                     android:id="@+id/tv_tittle"
                     android:layout_width="wrap_content"
@@ -36,7 +53,7 @@
                     android:layout_marginTop="48dp"
                     android:textColor="@color/white"
                     android:textSize="19sp"
-                    app:layout_constraintStart_toStartOf="parent"
+                    app:layout_constraintStart_toEndOf="@id/fl_fanhui"
                     app:layout_constraintTop_toTopOf="parent"
                     tools:text="Document" />
 
@@ -63,6 +80,7 @@
                     tools:ignore="ContentDescription" />
 
                 <ImageView
+                    android:id="@+id/iv_paixu"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
                     android:layout_marginEnd="16dp"
@@ -240,7 +258,6 @@
             android:id="@+id/ll_recent"
             android:layout_width="0dp"
             android:layout_height="match_parent"
-            android:layout_marginHorizontal="5dp"
             android:layout_weight="1"
             android:background="@drawable/ripple_select"
             android:clickable="true"
@@ -273,7 +290,6 @@
             android:id="@+id/ll_bookmark"
             android:layout_width="0dp"
             android:layout_height="match_parent"
-            android:layout_marginHorizontal="5dp"
             android:layout_weight="1"
             android:background="@drawable/ripple_select"
             android:clickable="true"
@@ -308,7 +324,6 @@
             android:id="@+id/ll_tool"
             android:layout_width="0dp"
             android:layout_height="match_parent"
-            android:layout_marginHorizontal="5dp"
             android:layout_weight="1"
             android:background="@drawable/ripple_select"
             android:clickable="true"
@@ -339,6 +354,76 @@
 
         </LinearLayout>
 
+        <LinearLayout
+            android:id="@+id/ll_delete"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_marginHorizontal="5dp"
+            android:layout_weight="1"
+            android:background="@drawable/ripple_select"
+            android:clickable="true"
+            android:focusable="true"
+            android:orientation="vertical"
+            android:splitMotionEvents="false"
+            android:visibility="gone"
+            app:layout_constraintEnd_toStartOf="@id/ll_share"
+            app:layout_constraintStart_toStartOf="parent">
+
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:layout_marginTop="9dp"
+                android:src="@mipmap/x_delete"
+                tools:ignore="ContentDescription" />
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:layout_marginTop="2.5dp"
+                android:text="@string/delete"
+                android:textColor="#333333"
+                android:textSize="11sp"
+                tools:ignore="HardcodedText" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ll_share"
+            android:layout_width="0dp"
+            android:layout_height="match_parent"
+            android:layout_marginHorizontal="5dp"
+            android:layout_weight="1"
+            android:background="@drawable/ripple_select"
+            android:clickable="true"
+            android:focusable="true"
+            android:orientation="vertical"
+            android:splitMotionEvents="false"
+            android:visibility="gone"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toEndOf="@id/ll_delete">
+
+            <ImageView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:layout_marginTop="9dp"
+                android:src="@mipmap/x_share"
+                tools:ignore="ContentDescription" />
+
+            <TextView
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:layout_marginTop="2.5dp"
+                android:text="@string/share"
+                android:textColor="#333333"
+                android:textSize="11sp"
+                tools:ignore="HardcodedText" />
+
+        </LinearLayout>
+
 
     </androidx.constraintlayout.widget.ConstraintLayout>
 

app/src/main/res/layout/dialog_sort.xml

+<?xml version="1.0" encoding="utf-8"?>
+<androidx.constraintlayout.widget.ConstraintLayout xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:app="http://schemas.android.com/apk/res-auto"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:background="@drawable/bg_f3f3f3_tlr25"
+    android:orientation="vertical">
+
+    <FrameLayout
+        android:id="@+id/fl"
+        android:layout_width="match_parent"
+        android:layout_height="65dp"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <TextView
+            android:id="@+id/tv_tittle"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_vertical"
+            android:layout_marginStart="16dp"
+            android:includeFontPadding="false"
+            android:text="@string/sort_order"
+            android:textColor="#333333"
+            android:textSize="17sp"
+            android:textStyle="bold"
+            tools:ignore="HardcodedText" />
+
+    </FrameLayout>
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:background="@color/white"
+        android:orientation="vertical"
+        app:layout_constraintBottom_toBottomOf="parent"
+        app:layout_constraintTop_toBottomOf="@id/fl">
+
+        <LinearLayout
+            android:id="@+id/ll_last_modified"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16.5dp"
+            android:background="?android:attr/selectableItemBackground"
+            android:paddingVertical="15dp"
+            tools:ignore="UseCompoundDrawables">
+
+            <TextView
+                android:id="@+id/tv_1"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:layout_weight="1"
+                android:includeFontPadding="false"
+                android:text="@string/last_modification_from_new_to_1st"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                tools:ignore="HardcodedText" />
+
+            <ImageView
+                android:id="@+id/iv_1"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:src="@mipmap/sort_xia"
+                android:visibility="invisible"
+                tools:ignore="ContentDescription" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ll_final_modified"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16.5dp"
+            android:background="?android:attr/selectableItemBackground"
+            android:paddingVertical="15dp"
+            tools:ignore="UseCompoundDrawables">
+
+            <TextView
+                android:id="@+id/tv_2"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:layout_weight="1"
+                android:includeFontPadding="false"
+                android:text="@string/final_modification_from_old_to_new"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                tools:ignore="HardcodedText" />
+
+            <ImageView
+                android:id="@+id/iv_2"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:src="@mipmap/sort_xia"
+                android:visibility="invisible"
+                tools:ignore="ContentDescription" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ll_name_a_z"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16.5dp"
+            android:background="?android:attr/selectableItemBackground"
+            android:paddingVertical="15dp"
+            tools:ignore="UseCompoundDrawables">
+
+            <TextView
+                android:id="@+id/tv_3"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:layout_weight="1"
+                android:includeFontPadding="false"
+                android:text="@string/name_a_z"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                tools:ignore="HardcodedText" />
+
+            <ImageView
+                android:id="@+id/iv_3"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:src="@mipmap/sort_xia"
+                android:visibility="invisible"
+                tools:ignore="ContentDescription" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:id="@+id/ll_name_z_a"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16.5dp"
+            android:background="?android:attr/selectableItemBackground"
+            android:paddingVertical="15dp"
+            tools:ignore="UseCompoundDrawables">
+
+            <TextView
+                android:id="@+id/tv_4"
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:layout_weight="1"
+                android:includeFontPadding="false"
+                android:text="@string/name_z_a"
+                android:textColor="#333333"
+                android:textSize="16sp"
+                tools:ignore="HardcodedText" />
+
+            <ImageView
+                android:id="@+id/iv_4"
+                android:layout_width="wrap_content"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:src="@mipmap/sort_xia"
+                android:visibility="invisible"
+                tools:ignore="ContentDescription" />
+
+        </LinearLayout>
+
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="26dp"
+            android:layout_marginBottom="20dp">
+
+            <TextView
+                android:id="@+id/tv_cancel"
+                android:layout_width="163dp"
+                android:layout_height="48dp"
+                android:background="@drawable/bg_f1f2f6_10"
+                android:gravity="center"
+                android:text="@string/cancel"
+                android:textColor="#505050"
+                android:textSize="18sp"
+                tools:ignore="HardcodedText" />
+
+            <TextView
+                android:id="@+id/tv_ok"
+                android:layout_width="163dp"
+                android:layout_height="48dp"
+                android:layout_marginStart="14dp"
+                android:background="@drawable/bg_00b8de_10"
+                android:gravity="center"
+                android:text="@string/ok"
+                android:textColor="@color/white"
+                android:textSize="18sp"
+                tools:ignore="HardcodedText" />
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

app/src/main/res/values/strings.xml

 <resources>
     <string name="app_name">pdf reader 2</string>
-    <!-- TODO: Remove or change this placeholder text -->
-    <string name="hello_blank_fragment">Hello blank fragment</string>
-    <string name="document">Document</string>
+
+    <string name="next">Next</string>
+    <string name="previous">Previous</string>
+    <string name="merge_pdf">Merge PDF</string>
+    <string name="document">document</string>
+    <string name="add">Add</string>
+    <string name="recent">Recent</string>
+    <string name="rename">Rename</string>
     <string name="bookmark">Bookmark</string>
+    <string name="merge">Merge</string>
+    <string name="feedback">Feedback</string>
     <string name="tool">Tool</string>
-    <string name="recent">Recent</string>
+    <string name="delete">Delete</string>
+    <string name="share">Share</string>
+    <string name="save">Save</string>
+    <string name="highlight">Highlight</string>
+    <string name="glide_line">Glide Line</string>
+    <string name="split_pdf">Split PDF</string>
+    <string name="send">Send</string>
+    <string name="set">Set</string>
+    <string name="painting_brush">Painting Brush</string>
+    <string name="cancel">Cancel</string>
+    <string name="strikethrough">Strikethrough</string>
+    <string name="are_you_sure_you_want_to_delete_it">Are you sure you want to delete it?</string>
+    <string name="evaluate_us">Evaluate Us</string>
+    <string name="splitting_pdf_please_wait">Splitting PDF, please wait.</string>
+    <string name="detail">Detail</string>
+    <string name="split">Split</string>
+    <string name="lock_pdf">Lock PDF</string>
+    <string name="unlock_pdf">Unlock PDF</string>
+    <string name="scan_pdf">Scan PDF</string>
+    <string name="privacy_policy">Privacy Policy</string>
+    <string name="term_of_service">Term of service</string>
     <string name="empty">Empty</string>
+    <string name="start">Start</string>
+    <string name="file_manager">File Manager</string>
+    <string name="more">More</string>
+    <string name="ok">Ok</string>
+    <string name="page_number">Page Number</string>
+    <string name="jump_to_the_specified_page">Jump to the specified page</string>
+    <string name="set_password">Set Password</string>
+    <string name="set_password_protection_pdf">Set password protection pdf</string>
+    <string name="enter_the_password_to_open_the_file">Enter the password to open the file</string>
+    <string name="password_error">Password Error</string>
+    <string name="confirm">Confirm</string>
+    <string name="thank_you_for_your_support">Thank you for your support!</string>
+    <string name="your_five_star_rating_will_inspire_us_to_keep_moving_forward">Your five-star rating will inspire us to keep\nmoving forward</string>
+    <string name="print">Print</string>
+    <string name="evaluate">Evaluate</string>
+    <string name="sort_order">Sort Order</string>
+    <string name="last_modification_from_new_to_1st">Last modification (From new to 1st)</string>
+    <string name="final_modification_from_old_to_new">Final modification (From old to new)</string>
+    <string name="name_a_z">Name (A-Z)</string>
+    <string name="name_z_a">Name (Z-A)</string>
+    <string name="language">Language</string>
+    <string name="select_language">Select language</string>
+
+    <string name="select_a_project">Select a project</string>
+    <string name="items_has_been_selected">%1$s items has been selected</string>
+    <string name="delete_password">Delete Password</string>
+    <string name="delete_password_the_file_is_not_password_protected">Delete password, the file is not password protected</string>
+    <string name="input_password">Input Password</string>
+    <string name="password_protected">%1$s password protected</string>
+    <string name="sunday">Sunday</string>
+    <string name="monday">Monday</string>
+    <string name="tuesday">Tuesday</string>
+    <string name="wednesday">Wednesday</string>
+    <string name="thursday">Thursday</string>
+    <string name="friday">Friday</string>
+    <string name="saturday">Saturday</string>
+    <string name="exit">Exit</string>
+    <string name="follow_system">Follow System</string>
+    <string name="authorization_request">Authorization request</string>
+    <string name="to_read_and_edit_pdf_files_we_need_your_permission_to_obtain_file_management_privileges">To read and edit PDF files, we need your\npermission to obtain file management privileges</string>
+    <string name="_continue">Continue</string>
+    <string name="required_permissions">Required permissions</string>
+    <string name="later">Later</string>
+    <string name="allow">Allow</string>
+    <string name="permission_tip_1">For your convenience, please allow the APP to access all your files. The document information we organize</string>
+    <string name="permission_tip_2">will only be used on the current device.</string>
+    <string name="click_this_button_to_use_the_scanning_feature">Click this button to use the\nscanning feature</string>
+    <string name="try_using_it">Try using it</string>
+    <string name="preparing_advertisement">Preparing advertisement&#8230;</string>
+    <string name="new_image_for_creating_pdf">New image for creating PDF</string>
+    <string name="edit_images_to_create_pdf_files">Edit images to create PDF files</string>
+    <string name="read_your_pdf_file">Read your PDF file</string>
+    <string name="did_you_miss_this_pdf_file">Did you miss this PDF file?</string>
+    <string name="read_more_phone_documents">Read more phone documents</string>
+    <string name="click_to_read_and_edit_your_document">Click to read and edit your document</string>
+    <string name="there_are_unviewed_files">There are unviewed files</string>
+    <string name="click_to_read_now">Click to read now</string>
+    <string name="don_t_miss_important_documents">Don\'t miss important documents</string>
+    <string name="view_now">View Now</string>
+    <string name="please_grant_notification_permissions">Please grant notification permissions</string>
+    <string name="notification_enable_tips">Enabling notification permissions will allow you to receive future notification promptly and display unique message banners</string>
+    <string name="enable_notifications">Enable notifications</string>
+    <string name="not_open">Not open</string>
+    <string name="unfinished_documents_to_read">You still have some unfinished documents to read.</string>
+    <string name="click_to_view_details">Click to view details.</string>
+    <string name="set_as_default">Set as Default </string>
+    <string name="set_this_app_as_your_default">Set this app as your default </string>
+    <string name="for_a_better_reading_experience">for a better reading experience</string>
+    <string name="select">Select </string>
+    <string name="_and_click">" and click"</string>
+    <string name="always">Always </string>
+    <string name="as_the_default_reader">It is set as the default reader.</string>
+    <string name="image_pdf">Image Pdf</string>
+    <string name="process">Process</string>
+    <string name="_7_day_weather_forecast">7 Day weather forecast</string>
+    <string name="wait_a_moment">Wait a moment&#8230;</string>
+    <string name="humidity">Humidity</string>
+    <string name="wind">Wind</string>
+    <string name="pressure">Pressure</string>
+    <string name="backend_apps">Backend Apps</string>
+    <string name="stop">Stop</string>
+    <string name="clean_junk">Clean Junk</string>
+    <string name="scanning_for_running_processes">Scanning for running processes</string>
+    <string name="manage_processes_run_in_the_background">Manage processes run in the background</string>
+    <string name="clean_up_your_phone_storage">Clean up your phone storage</string>
+    <string name="scan_now">Scan Now</string>
+    <string name="clean_now">Clean Now</string>
+    <string name="completed">Completed</string>
+    <string name="clean">Clean</string>
+    <string name="scan">Scan</string>
 </resources>
\ No newline at end of file

app/src/main/res/values/themes.xml

@@ -7,5 +7,13 @@
 
     <style name="Theme.PdfReader2" parent="Base.Theme.PdfReader2" />
 
+    <style name="BottomSheetDialog" parent="Theme.Design.Light.BottomSheetDialog">
+        <item name="bottomSheetStyle">@style/bottomSheetStyleWrapper</item>
+    </style>
+
+    <style name="bottomSheetStyleWrapper" parent="Widget.Design.BottomSheet.Modal">
+        <item name="android:background">@android:color/transparent</item>
+    </style>
+
 
 </resources>
\ No newline at end of file