...

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

@@ -6,6 +6,7 @@ import android.net.Uri
 import android.text.Spannable
 import android.text.SpannableString
 import android.text.style.ForegroundColorSpan
+import androidx.activity.addCallback
 import androidx.core.view.GravityCompat
 import androidx.core.view.updatePadding
 import androidx.lifecycle.ViewModelProvider
@@ -23,6 +24,7 @@ import com.base.pdfreaderallpdfreader.ui.feedback.FeedbackActivity
 import com.base.pdfreaderallpdfreader.ui.language.LanguageActivity
 import com.base.pdfreaderallpdfreader.ui.pdf.PdfActivity
 import com.base.pdfreaderallpdfreader.ui.search.SearchActivity
+import com.base.pdfreaderallpdfreader.ui.view.MainDialog.showAppExitDialog
 import com.base.pdfreaderallpdfreader.ui.view.MainDialog.showStoragePermission
 import com.base.pdfreaderallpdfreader.ui.view.NameDialog.showDocumentRenameDialog
 import com.base.pdfreaderallpdfreader.ui.view.PwdDialog.showPdfPwdDialog
@@ -113,6 +115,9 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
 
     override fun initListener() {
         super.initListener()
+        onBackPressedDispatcher.addCallback {
+            showAppExitDialog()
+        }
         binding.includeMain.ivMenu.setOnClickListener {
             binding.drawerLayout.openDrawer(GravityCompat.START)
         }
@@ -206,7 +211,6 @@ class MainActivity : BaseActivity<ActivityMainBinding>() {
         }
     }
 
-
     private fun starAdGmsScan() {
 
         if (AdmobHelper.isShowScanInter() && AdmobHelper.canCommonShowAd()) {

app/src/main/java/com/base/pdfreaderallpdfreader/ui/view/MainDialog.kt

 package com.base.pdfreaderallpdfreader.ui.view
 
+import android.app.Activity
 import android.content.Context
 import android.graphics.Color
 import android.text.SpannableString
@@ -8,6 +9,8 @@ import android.text.style.ForegroundColorSpan
 import android.view.LayoutInflater
 import android.view.View
 import com.base.pdfreaderallpdfreader.R
+import com.base.pdfreaderallpdfreader.ads.admob.AdmobNativeUtils
+import com.base.pdfreaderallpdfreader.databinding.DialogAppExitBinding
 import com.base.pdfreaderallpdfreader.databinding.DialogStoragePermissionBinding
 import com.base.pdfreaderallpdfreader.utils.ActivityLauncher
 import com.base.pdfreaderallpdfreader.utils.PermissionUtils.requestStoragePermission
@@ -61,4 +64,28 @@ object MainDialog {
         return dialog
 
     }
+
+
+    fun Activity.showAppExitDialog() {
+        val dialog = BottomSheetDialog(this, R.style.BottomSheetDialog)
+        val binding = DialogAppExitBinding.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
+
+        AdmobNativeUtils.showNativeAd(this, binding.flAd, R.layout.layout_admob_app_exit)
+
+        binding.cardNo.setOnClickListener {
+            finish()
+        }
+        binding.cardYes.setOnClickListener {
+            dialog.dismiss()
+        }
+    }
 }
\ No newline at end of file

app/src/main/res/drawable/bg_00b5dc_10.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#00B5DC" />
+    <corners android:radius="10dp" />
+</shape>
\ No newline at end of file

app/src/main/res/drawable/bg_bfe8f3_tl15_br15.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <corners android:topLeftRadius="15dp" android:bottomRightRadius="15dp"/>
+    <solid android:color="#BFE8F3"/>
+</shape>
\ No newline at end of file

app/src/main/res/drawable/bg_f1f4f9_15.xml

+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android">
+    <solid android:color="#F1F4F9" />
+    <corners android:radius="15dp" />
+</shape>
\ No newline at end of file

app/src/main/res/layout/dialog_app_exit.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_ffffff_tlr15"
+    android:orientation="vertical">
+
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:orientation="vertical"
+        app:layout_constraintTop_toTopOf="parent">
+
+        <TextView
+            android:id="@+id/tv_tip"
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="28dp"
+            android:text="Are you sure want to exit the app?"
+            android:textColor="#333333"
+            android:textSize="18sp"
+            android:textStyle="bold"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent"
+            tools:ignore="HardcodedText" />
+
+
+        <FrameLayout
+            android:id="@+id/fl_ad"
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginHorizontal="16dp"
+            android:layout_marginTop="8dp"
+            android:gravity="center_horizontal"
+            tools:ignore="Autofill,HardcodedText,LabelFor,TextFields">
+
+            <ImageView
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_horizontal"
+                android:scaleType="fitCenter"
+                android:src="@mipmap/zhanweitu"
+                tools:ignore="ContentDescription" />
+
+        </FrameLayout>
+
+        <LinearLayout
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:layout_gravity="center_horizontal"
+            android:layout_marginTop="20dp"
+            android:layout_marginBottom="15dp"
+            android:padding="5dp">
+
+            <androidx.cardview.widget.CardView
+                android:id="@+id/card_no"
+                android:layout_width="163dp"
+                android:layout_height="48dp"
+                app:cardBackgroundColor="#f1f2f6"
+                app:cardCornerRadius="10dp"
+                app:cardElevation="0dp">
+
+                <TextView
+                    android:id="@+id/tv_no"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:gravity="center"
+                    android:text="@string/exit"
+                    android:textColor="#505050"
+                    android:textSize="18sp"
+                    tools:ignore="HardcodedText" />
+            </androidx.cardview.widget.CardView>
+
+
+            <androidx.cardview.widget.CardView
+                android:id="@+id/card_yes"
+                android:layout_width="163dp"
+                android:layout_height="48dp"
+                android:layout_marginStart="14dp"
+                app:cardBackgroundColor="#00B8DE"
+                app:cardCornerRadius="10dp"
+                app:cardElevation="0dp"
+                tools:ignore="HardcodedText">
+
+                <TextView
+                    android:id="@+id/tv_yes"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_gravity="center"
+                    android:text="@string/cancel"
+                    android:textColor="@color/white"
+                    android:textSize="18sp" />
+
+            </androidx.cardview.widget.CardView>
+
+        </LinearLayout>
+
+    </LinearLayout>
+
+</androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file

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

+<com.google.android.gms.ads.nativead.NativeAdView xmlns:android="http://schemas.android.com/apk/res/android"
+    xmlns:tools="http://schemas.android.com/tools"
+    android:layout_width="match_parent"
+    android:layout_height="wrap_content"
+    android:layout_margin="10dp"
+    android:background="@drawable/bg_f1f4f9_15">
+
+    <LinearLayout
+        android:layout_width="match_parent"
+        android:layout_height="wrap_content"
+        android:layout_gravity="center"
+        android:baselineAligned="false"
+        android:orientation="vertical">
+
+        <TextView
+            android:layout_width="wrap_content"
+            android:layout_height="wrap_content"
+            android:background="@drawable/bg_bfe8f3_tl15_br15"
+            android:paddingHorizontal="8dp"
+            android:paddingVertical="5dp"
+            android:text="Ad"
+            android:textColor="#00B5DC"
+            android:textSize="12sp"
+            tools:ignore="HardcodedText" />
+
+        <LinearLayout
+            android:layout_width="match_parent"
+            android:layout_height="wrap_content"
+            android:layout_marginTop="8dp"
+            android:orientation="horizontal">
+
+            <ImageView
+                android:id="@+id/ad_app_icon"
+                android:layout_width="42dp"
+                android:layout_height="42dp"
+                android:layout_gravity="center_vertical"
+                android:layout_marginStart="8dp"
+                tools:ignore="ContentDescription" />
+
+            <LinearLayout
+                android:layout_width="0dp"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center_vertical"
+                android:layout_marginHorizontal="8dp"
+                android:layout_weight="1"
+                android:orientation="vertical">
+
+
+                <TextView
+                    android:id="@+id/ad_headline"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:ellipsize="end"
+                    android:maxLines="2"
+                    android:textColor="#001D29"
+                    android:textSize="16sp"
+                    android:textStyle="bold" />
+
+
+                <TextView
+                    android:id="@+id/ad_body"
+                    android:layout_width="match_parent"
+                    android:layout_height="wrap_content"
+                    android:layout_marginTop="4dp"
+                    android:ellipsize="end"
+                    android:maxLines="2"
+                    android:textColor="@color/black"
+                    android:textSize="12sp" />
+
+
+            </LinearLayout>
+
+        </LinearLayout>
+
+
+        <com.google.android.gms.ads.nativead.MediaView
+            android:id="@+id/ad_media"
+            android:layout_width="match_parent"
+            android:layout_height="100dp"
+            android:layout_gravity="center_vertical"
+            android:layout_marginHorizontal="8dp"
+            android:layout_marginVertical="10dp" />
+
+        <androidx.appcompat.widget.AppCompatButton
+            android:id="@+id/ad_call_to_action"
+            android:layout_width="match_parent"
+            android:layout_height="38dp"
+            android:layout_marginBottom="10dp"
+            android:layout_gravity="center_vertical"
+            android:layout_marginHorizontal="8dp"
+            android:background="@drawable/bg_00b5dc_10"
+            android:gravity="center"
+            android:textAllCaps="false"
+            android:textColor="@color/white"
+            android:textSize="15sp"
+            tools:text="Install" />
+    </LinearLayout>
+
+</com.google.android.gms.ads.nativead.NativeAdView>
\ No newline at end of file

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

@@ -100,5 +100,6 @@
     <string name="lock_pdf">Lock Pdf</string>
     <string name="unlock_pdf">Unlock Pdf</string>
     <string name="no_bookmark_file">No Bookmark File</string>
+    <string name="exit">Exit</string>
 
 </resources>
\ No newline at end of file