diff --git a/app/build.gradle b/app/build.gradle
index 49e5e39..e030691 100644
--- a/app/build.gradle
+++ b/app/build.gradle
@@ -11,8 +11,8 @@ android {
         applicationId 'top.fumiama.copymanga'
         minSdkVersion 23
         targetSdkVersion 34
-        versionCode 63
-        versionName '2.3.5'
+        versionCode 64
+        versionName '2.3.6'
         resourceConfigurations += ['zh', 'zh-rCN']
 
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
@@ -95,5 +95,5 @@ dependencies {
     //noinspection GradleDependency
     implementation 'androidx.lifecycle:lifecycle-runtime-ktx:2.7.0'
     implementation 'com.airbnb.android:lottie:6.5.2'
-    implementation 'net.java.dev.jna:jna:5.14.0@aar'
+    implementation 'net.java.dev.jna:jna:5.15.0@aar'
 }
diff --git a/app/src/main/java/top/fumiama/copymanga/MainActivity.kt b/app/src/main/java/top/fumiama/copymanga/MainActivity.kt
index 65c662c..080d63a 100644
--- a/app/src/main/java/top/fumiama/copymanga/MainActivity.kt
+++ b/app/src/main/java/top/fumiama/copymanga/MainActivity.kt
@@ -53,6 +53,7 @@ import kotlinx.coroutines.withContext
 import top.fumiama.copymanga.manga.Shelf
 import top.fumiama.copymanga.tools.ui.UITools
 import top.fumiama.copymanga.ui.book.BookFragment.Companion.bookHandler
+import top.fumiama.copymanga.ui.book.BookHandler
 import top.fumiama.copymanga.ui.cardflow.rank.RankFragment
 import top.fumiama.copymanga.ui.comicdl.ComicDlFragment
 import top.fumiama.copymanga.ui.download.DownloadFragment
@@ -189,7 +190,7 @@ class MainActivity : AppCompatActivity() {
                 true
             }
             R.id.action_download -> {
-                bookHandler.get()?.sendEmptyMessage(6)
+                bookHandler.get()?.sendEmptyMessage(BookHandler.NAVIGATE_TO_DOWNLOAD)
                 true
             }
             R.id.action_sort -> {
diff --git a/app/src/main/java/top/fumiama/copymanga/manga/Book.kt b/app/src/main/java/top/fumiama/copymanga/manga/Book.kt
index 0cb3924..f7c2ff7 100644
--- a/app/src/main/java/top/fumiama/copymanga/manga/Book.kt
+++ b/app/src/main/java/top/fumiama/copymanga/manga/Book.kt
@@ -97,14 +97,16 @@ class Book(val path: String, private val getString: (Int) -> String, private val
     /**
      * 更新云端最新章节信息并缓存到本地
      */
-    suspend fun updateVolumes(whenFinish: suspend () -> Unit) = withContext(Dispatchers.IO) withIO@ {
+    suspend fun updateVolumes(setProgress: (Int) -> Unit, whenFinish: suspend () -> Unit) = withContext(Dispatchers.IO) withIO@ {
         var isDownload = false
         var volumes = if(loadCache && loadVolumes()) mVolumes else emptyArray<VolumeStructure>()
+        if(mGroupPathWords.isEmpty()) return@withIO
         if(volumes.isEmpty()) {
             isDownload = true
+            val delta = 100/mGroupPathWords.size
             mGroupPathWords.forEachIndexed { i, g ->
-                Volume(path, g, getString) {
-                    return@Volume exit
+                Volume(path, g, getString, { return@Volume exit }) { p ->
+                    setProgress(i*delta+100*p/delta)
                 }.updateChapters(mCounts[i])?.let {
                     volumes += it
                 }
@@ -116,6 +118,7 @@ class Book(val path: String, private val getString: (Int) -> String, private val
                 mVolumes = volumes
             }
             goSaveHead(isDownload)
+            setProgress(100)
             whenFinish()
         }
     }
diff --git a/app/src/main/java/top/fumiama/copymanga/manga/Volume.kt b/app/src/main/java/top/fumiama/copymanga/manga/Volume.kt
index c703d2c..65595c9 100644
--- a/app/src/main/java/top/fumiama/copymanga/manga/Volume.kt
+++ b/app/src/main/java/top/fumiama/copymanga/manga/Volume.kt
@@ -10,7 +10,7 @@ import top.fumiama.copymanga.template.http.PausableDownloader
 import top.fumiama.copymanga.tools.api.CMApi
 import top.fumiama.dmzj.copymanga.R
 
-class Volume(private val path: String, private val groupPathWord: String, getString: (Int) -> String, private val isExit: ()->Boolean) {
+class Volume(private val path: String, private val groupPathWord: String, getString: (Int) -> String, private val isExit: ()->Boolean, private val setProgress: ((Int) -> Unit)? = null) {
     private val mGroupInfoApiUrlTemplate = getString(R.string.groupInfoApiUrl)
     private val exit: Boolean
         get() {
@@ -21,12 +21,20 @@ class Volume(private val path: String, private val groupPathWord: String, getStr
         }
     private var mDownloaders = arrayOf<PausableDownloader>()
     private var mVolume: VolumeStructure? = null
+    private var mProgress = 0
+        set(value) {
+            setProgress?.let { it(field) }
+            field = value
+        }
+    private var mDelta = 0
     suspend fun updateChapters(count: Int): VolumeStructure? = withContext(Dispatchers.IO) {
         val times = count / 100
         val remain = count % 100
         val re = arrayOfNulls<VolumeStructure>(if(remain != 0) (times+1) else (times))
         if (re.isEmpty()) return@withContext null
         Log.d("MyV", "${groupPathWord}卷共需加载${if(times == 0) 1 else times}次")
+        mProgress = 0
+        mDelta = 100/re.size
         download(re, 0, count)
         return@withContext mVolume
     }
@@ -40,6 +48,7 @@ class Volume(private val path: String, private val groupPathWord: String, getStr
             mDownloaders += ad
             ad.run()
         }
+        mProgress += mDelta
     }
     private fun whenFinish(re: Array<VolumeStructure?>, c: Int, offset: Int): suspend (ByteArray) -> Unit = lambda@ { result: ByteArray ->
         try {
diff --git a/app/src/main/java/top/fumiama/copymanga/template/general/MangaPagesFragmentTemplate.kt b/app/src/main/java/top/fumiama/copymanga/template/general/MangaPagesFragmentTemplate.kt
index fc29a61..7db41b0 100644
--- a/app/src/main/java/top/fumiama/copymanga/template/general/MangaPagesFragmentTemplate.kt
+++ b/app/src/main/java/top/fumiama/copymanga/template/general/MangaPagesFragmentTemplate.kt
@@ -1,5 +1,6 @@
 package top.fumiama.copymanga.template.general
 
+import android.animation.ObjectAnimator
 import android.annotation.SuppressLint
 import android.content.Context
 import android.net.ConnectivityManager
@@ -8,6 +9,7 @@ import android.os.Build
 import android.os.Bundle
 import android.util.Log
 import android.view.View
+import androidx.core.animation.doOnEnd
 import androidx.fragment.app.Fragment
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
@@ -157,18 +159,31 @@ open class MangaPagesFragmentTemplate(inflateRes:Int, private val isLazy: Boolea
         var newP = p
         mypl?.post {
             if (p == mypl?.progress) return@post
-            if (newP >= 100) {
-                Log.d("MyMPFT", "set 100, hide")
-                mypc?.visibility = View.GONE
-                return@post
-            }
+            if (newP >= 100) newP = 100
             else if (newP < 0) newP = 0
+            if (mypl?.progress == 0) {
+                Log.d("MyMPFT", "set from 0, show")
+                mypc?.apply {
+                    visibility = View.VISIBLE
+                    invalidate()
+                    ObjectAnimator.ofFloat(this, "alpha", 0f, 1f)
+                        .setDuration(300)
+                        .start()
+                }
+            }
+            if(newP == 100) {
+                Log.d("MyMPFT", "set to 100, hide")
+                mypc?.apply {
+                    val oa = ObjectAnimator.ofFloat(this, "alpha", 1f, 0f).setDuration(300)
+                    oa.doOnEnd { visibility = View.GONE }
+                    oa.start()
+                }
+            }
             mypl?.apply {
-                if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.N) {
-                    setProgress(newP, true)
-                } else progress = newP
-                invalidate()
-                Log.d("MyMPFT", "set ${mypl?.progress}")
+                val oa = ObjectAnimator.ofInt(this, "progress", newP).setDuration(100)
+                oa.addUpdateListener { invalidate() }
+                oa.start()
+                Log.d("MyMPFT", "set $progress")
             }
         }
     }
diff --git a/app/src/main/java/top/fumiama/copymanga/template/ui/InfoCardLoader.kt b/app/src/main/java/top/fumiama/copymanga/template/ui/InfoCardLoader.kt
index fe24712..783f826 100644
--- a/app/src/main/java/top/fumiama/copymanga/template/ui/InfoCardLoader.kt
+++ b/app/src/main/java/top/fumiama/copymanga/template/ui/InfoCardLoader.kt
@@ -49,7 +49,7 @@ open class InfoCardLoader(inflateRes:Int, private val navId:Int, private val isT
                                     book?.comic?.path_word, null, null,
                                     isFinish = false, isNew = false
                                 )
-                                setProgress(20+80*i/size)
+                                setProgress(20+80*(i+1)/size)
                             }
                             offset += size
                         }
@@ -71,7 +71,7 @@ open class InfoCardLoader(inflateRes:Int, private val navId:Int, private val isT
                                     book?.comic?.path_word, null, null,
                                     book?.comic?.status==1
                                 )
-                                setProgress(20+80*i/size)
+                                setProgress(20+80*(i+1)/size)
                             }
                             offset += size
                         }
@@ -94,7 +94,7 @@ open class InfoCardLoader(inflateRes:Int, private val navId:Int, private val isT
                                     book?.comic?.status==1,
                                     book.comic?.browse?.chapter_uuid != book.comic?.last_chapter_id
                                 )
-                                setProgress(20+80*i/size)
+                                setProgress(20+80*(i+1)/size)
                             }
                             offset += size
                         }
@@ -112,7 +112,7 @@ open class InfoCardLoader(inflateRes:Int, private val navId:Int, private val isT
                                 Log.d("MyICL", "load @ $i")
                                 if(ad?.exit == true) return@PausableDownloader
                                 cardList?.addCard(book?.name?:"null", null, book?.cover, book?.path_word, null, null, false)
-                                setProgress(20+80*i/size)
+                                setProgress(20+80*(i+1)/size)
                             }
                             offset += size
                         }
diff --git a/app/src/main/java/top/fumiama/copymanga/ui/book/BookFragment.kt b/app/src/main/java/top/fumiama/copymanga/ui/book/BookFragment.kt
index 018e0fa..6f5efb1 100644
--- a/app/src/main/java/top/fumiama/copymanga/ui/book/BookFragment.kt
+++ b/app/src/main/java/top/fumiama/copymanga/ui/book/BookFragment.kt
@@ -1,11 +1,14 @@
 package top.fumiama.copymanga.ui.book
 
+import android.animation.ObjectAnimator
 import android.annotation.SuppressLint
 import android.content.Context.MODE_PRIVATE
 import android.os.Bundle
 import android.util.Log
 import android.view.View
 import android.widget.Toast
+import androidx.core.animation.addListener
+import androidx.core.animation.doOnEnd
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import kotlinx.android.synthetic.main.app_bar_main.*
@@ -42,6 +45,12 @@ class BookFragment: NoBackRefreshFragment(R.layout.fragment_book) {
             lifecycleScope.launch {
                 prepareHandler()
                 try {
+                    fbloading?.apply {
+                        post {
+                            progress = 0
+                            invalidate()
+                        }
+                    }
                     book?.updateInfo()
                 } catch (e: Exception) {
                     e.printStackTrace()
@@ -52,12 +61,25 @@ class BookFragment: NoBackRefreshFragment(R.layout.fragment_book) {
                 }
                 Log.d("MyBF", "read path: ${book?.path}")
                 for (i in 1..3) {
-                    mBookHandler?.sendEmptyMessageDelayed(i, (i*100).toLong())
+                    mBookHandler?.sendEmptyMessage(i)
                 }
                 try {
-                    book?.updateVolumes {
-                        delay(300)
-                        mBookHandler?.sendEmptyMessage(10)
+                    fbc?.apply {
+                        alpha = 0f
+                        visibility = View.VISIBLE
+                        invalidate()
+                        ObjectAnimator.ofFloat(this, "alpha", 0f, 1f)
+                            .setDuration(300)
+                            .start()
+                    }
+                    book?.updateVolumes({ fbloading?.apply { post {
+                        val oa = ObjectAnimator.ofInt(this, "progress", 20 + it*8/10)
+                            .setDuration(128)
+                        oa.addUpdateListener { invalidate() }
+                        oa.start()
+                        Log.d("MyBF", "set progress $it")
+                    } } }) {
+                        mBookHandler?.sendEmptyMessage(BookHandler.SET_VOLUMES)
                     }
                 } catch (e: Exception) {
                     e.printStackTrace()
@@ -95,14 +117,15 @@ class BookFragment: NoBackRefreshFragment(R.layout.fragment_book) {
     }
 
     fun setStartRead() {
-        if(mBookHandler?.chapterNames?.isNotEmpty() == true) activity?.apply {
+        if(mBookHandler?.chapterNames?.isNotEmpty() != true) return
+        activity?.apply {
             book?.name?.let { name ->
                 getPreferences(MODE_PRIVATE).getInt(name, -1).let { p ->
                     this@BookFragment.lbbstart.apply {
                         var i = 0
-                        if(p >= 0) {
-                            text = mBookHandler!!.chapterNames[p]
-                            i = p
+                        if(p >= 0) mBookHandler!!.chapterNames.let {
+                            i = if (p >= it.size) it.size-1 else p
+                            text = it[i]
                         }
                         setOnClickListener {
                             mBookHandler?.apply {
diff --git a/app/src/main/java/top/fumiama/copymanga/ui/book/BookHandler.kt b/app/src/main/java/top/fumiama/copymanga/ui/book/BookHandler.kt
index 10d55a7..b9c1c86 100644
--- a/app/src/main/java/top/fumiama/copymanga/ui/book/BookHandler.kt
+++ b/app/src/main/java/top/fumiama/copymanga/ui/book/BookHandler.kt
@@ -1,5 +1,6 @@
 package top.fumiama.copymanga.ui.book
 
+import android.animation.ObjectAnimator
 import android.graphics.drawable.Drawable
 import android.os.Bundle
 import android.os.Handler
@@ -10,6 +11,7 @@ import android.view.View
 import android.view.ViewGroup
 import android.widget.LinearLayout
 import android.widget.TextView
+import androidx.core.animation.doOnEnd
 import androidx.core.widget.NestedScrollView
 import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
@@ -70,9 +72,10 @@ class BookHandler(private val th: WeakReference<BookFragment>): Handler(Looper.m
 
     private fun endSetLayouts() {
         if (exit) return
-        that?.fbloading?.apply {
-            pauseAnimation()
-            visibility = View.GONE
+        that?.fbc?.apply {
+            val oa = ObjectAnimator.ofFloat(this, "alpha", 1f, 0f).setDuration(300)
+            oa.doOnEnd { visibility = View.GONE }
+            oa.start()
         }
         complete = true
         that?.setStartRead()
@@ -291,7 +294,7 @@ class BookHandler(private val th: WeakReference<BookFragment>): Handler(Looper.m
                 }
             }
         }
-        sendEmptyMessage(9) // end set layout
+        sendEmptyMessage(END_SET_LAYOUTS)
     }
 
     private fun loadVolume(name: String, path: String, nav: Int){
@@ -331,4 +334,10 @@ class BookHandler(private val th: WeakReference<BookFragment>): Handler(Looper.m
             override fun getItemCount(): Int = that?.book?.keys?.size?:0
         }
     }
+
+    companion object {
+        const val NAVIGATE_TO_DOWNLOAD = 6
+        const val END_SET_LAYOUTS = 9
+        const val SET_VOLUMES = 10
+    }
 }
diff --git a/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlFragment.kt b/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlFragment.kt
index 3f5789b..61f8f24 100644
--- a/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlFragment.kt
+++ b/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlFragment.kt
@@ -8,6 +8,7 @@ import androidx.lifecycle.lifecycleScope
 import androidx.navigation.fragment.findNavController
 import com.google.gson.Gson
 import kotlinx.android.synthetic.main.fragment_dlcomic.*
+import kotlinx.android.synthetic.main.widget_downloadbar.*
 import kotlinx.coroutines.Dispatchers
 import kotlinx.coroutines.delay
 import kotlinx.coroutines.launch
@@ -24,6 +25,7 @@ class ComicDlFragment: NoBackRefreshFragment(R.layout.fragment_dlcomic) {
         super.onViewCreated(view, savedInstanceState)
         exit = false
         ldwn?.setPadding(0, 0, 0, navBarHeight)
+        dlsdwn?.translationY = -navBarHeight.toFloat()
         if(isFirstInflate) lifecycleScope.launch {
             withContext(Dispatchers.IO) {
                 when {
diff --git a/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlHandler.kt b/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlHandler.kt
index 03db6b4..d5acdc3 100644
--- a/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlHandler.kt
+++ b/app/src/main/java/top/fumiama/copymanga/ui/comicdl/ComicDlHandler.kt
@@ -199,8 +199,11 @@ class ComicDlHandler(looper: Looper, private val th: WeakReference<ComicDlFragme
         dl?.setContentView(R.layout.dialog_unzipping)
         that?.dlsdwn?.viewTreeObserver?.addOnGlobalLayoutListener(object : ViewTreeObserver.OnGlobalLayoutListener{
             override fun onGlobalLayout() {
-                cdwnWidth = that!!.dlsdwn.width
-                Log.d("MyDl", "Get dlsdwn height: $cdwnWidth")
+                that!!.apply {
+                    cdwnWidth = dlsdwn.width
+                    Log.d("MyDl", "Get dlsdwn width: $cdwnWidth")
+                    ldwn?.setPadding(0, 0, 0, dlsdwn.height+navBarHeight)
+                }
                 that!!.dlsdwn.viewTreeObserver.removeOnGlobalLayoutListener(this)
             }
         })
diff --git a/app/src/main/res/layout/fragment_book.xml b/app/src/main/res/layout/fragment_book.xml
index 4ac99bf..29fb1ef 100644
--- a/app/src/main/res/layout/fragment_book.xml
+++ b/app/src/main/res/layout/fragment_book.xml
@@ -44,12 +44,29 @@
         app:layout_constraintTop_toBottomOf="@+id/fbiinf"
         app:layout_behavior="@string/appbar_scrolling_view_behavior"/>
 
-    <com.airbnb.lottie.LottieAnimationView
-        android:id="@+id/fbloading"
+    <androidx.constraintlayout.widget.ConstraintLayout
+        android:id="@+id/fbc"
         android:layout_width="match_parent"
         android:layout_height="match_parent"
-        android:alpha="0.5"
-        app:lottie_autoPlay="true"
-        app:lottie_loop="true"
-        app:lottie_rawRes="@raw/lottie_loading" />
+        android:alpha="0">
+
+        <androidx.cardview.widget.CardView
+            android:layout_width="@dimen/book_card_width"
+            android:layout_height="@dimen/icon_size_middle"
+            app:layout_constraintBottom_toBottomOf="parent"
+            app:layout_constraintEnd_toEndOf="parent"
+            app:layout_constraintStart_toStartOf="parent"
+            app:layout_constraintTop_toTopOf="parent">
+
+            <ProgressBar
+                android:id="@+id/fbloading"
+                style="?android:attr/progressBarStyleHorizontal"
+                android:layout_width="match_parent"
+                android:layout_height="wrap_content"
+                android:layout_gravity="center"
+                android:padding="16dp" />
+        </androidx.cardview.widget.CardView>
+    </androidx.constraintlayout.widget.ConstraintLayout>
+
+
 </androidx.coordinatorlayout.widget.CoordinatorLayout>
\ No newline at end of file
diff --git a/app/src/main/res/layout/line_lazybooklines.xml b/app/src/main/res/layout/line_lazybooklines.xml
index 9b7e2b6..3971029 100644
--- a/app/src/main/res/layout/line_lazybooklines.xml
+++ b/app/src/main/res/layout/line_lazybooklines.xml
@@ -1,6 +1,7 @@
 <?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="match_parent">
 
@@ -34,17 +35,20 @@
         android:id="@+id/mypc"
         android:layout_width="@dimen/book_card_width"
         android:layout_height="@dimen/icon_size_middle"
+        android:alpha="0"
+        android:visibility="gone"
         app:layout_constraintBottom_toBottomOf="parent"
         app:layout_constraintEnd_toEndOf="parent"
         app:layout_constraintStart_toStartOf="parent"
-        app:layout_constraintTop_toTopOf="parent">
+        app:layout_constraintTop_toTopOf="parent"
+        tools:visibility="visible">
 
         <ProgressBar
             android:id="@+id/mypl"
+            style="?android:attr/progressBarStyleHorizontal"
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:layout_gravity="center"
-            android:padding="16dp"
-            style="?android:attr/progressBarStyleHorizontal"/>
+            android:padding="16dp" />
     </androidx.cardview.widget.CardView>
 </androidx.constraintlayout.widget.ConstraintLayout>
\ No newline at end of file