diff --git a/app/src/main/AndroidManifest.xml b/app/src/main/AndroidManifest.xml
index 5e60911..7214c31 100644
--- a/app/src/main/AndroidManifest.xml
+++ b/app/src/main/AndroidManifest.xml
@@ -28,8 +28,9 @@
         android:supportsRtl="true"
         android:theme="@style/Theme.Jianshu"
         android:usesCleartextTraffic="true">
+        <activity android:name=".GoodBookActivity"/>
         <activity android:name=".HotBookActivity"/>
-        <activity android:name=".Book_informationActivity" />
+        <activity android:name=".BookInformationActivity" />
         <activity android:name=".PerceptionActivity" />
         <activity android:name=".FindpwdActivity"/>
         <activity android:name=".LiteratureActivity"/>
@@ -49,8 +50,8 @@
 <!--                <category android:name="android.intent.category.LAUNCHER" />-->
 <!--            </intent-filter>-->
 <!--        </activity>-->
-        <activity android:name=".Activity.BookIntro"/>
-         <activity android:name=".LoginActivity"
+        <activity android:name=".BookIntroActivity"/>
+         <activity android:name=".MainActivity"
              android:configChanges="orientation|keyboard|keyboardHidden|navigation"
              android:windowSoftInputMode="adjustPan|stateVisible"/>
         <activity android:name=".RegisterActivity" />
@@ -68,7 +69,7 @@
         <activity android:name=".Activity.AccountManagerActivity"/>
         <activity android:name=".ReAddressActivity"/>
         <activity
-            android:name=".MainActivity"
+            android:name=".LoginActivity"
             android:exported="true"
             android:label="Jianshu">
             <intent-filter>
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/BookInformationActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/BookInformationActivity.kt
new file mode 100644
index 0000000..37ddf9b
--- /dev/null
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/BookInformationActivity.kt
@@ -0,0 +1,221 @@
+package com.zjgsu.jianshu
+
+import android.content.Context
+import android.content.Intent
+import android.util.Log
+import cn.bmob.v3.Bmob
+import cn.bmob.v3.BmobQuery
+import cn.bmob.v3.exception.BmobException
+import cn.bmob.v3.listener.FindListener
+import cn.bmob.v3.listener.UpdateListener
+import android.os.Bundle
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.StaggeredGridLayoutManager
+import cn.bmob.v3.listener.SaveListener
+import com.bumptech.glide.Glide
+import com.zjgsu.jianshu.Adapter.GoodsuibiAdapter
+import com.zjgsu.jianshu.Bmob.BookShelf
+import com.zjgsu.jianshu.Bmob.Book_info_bmob
+import com.zjgsu.jianshu.Bmob.Perception_bmob
+import kotlinx.android.synthetic.main.activity_book_info.*
+import kotlinx.android.synthetic.main.bookinfo_title.*
+
+
+class BookInformationActivity : AppCompatActivity() {
+    private val perceptionList = ArrayList<Perception>()
+    private var isCommented = false
+    private lateinit var bookName: String
+    private lateinit var authorName: String
+    private lateinit var userId:String
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_book_info)
+        Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
+        bookName = intent.getStringExtra("Book_name") ?: ""
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
+        loadPerceptions()
+        setupRecyclerView()
+        loadBookInfo()
+        judgeInBookshelf()
+        setClickListeners()
+    }
+
+    private fun loadPerceptions() {
+        val queryPerception = BmobQuery<Perception_bmob>()
+        queryPerception.addWhereEqualTo("b_name", bookName)
+        queryPerception.findObjects(object : FindListener<Perception_bmob>() {
+            override fun done(list: List<Perception_bmob>, e: BmobException?) {
+                if (e == null) {
+                    list.forEach { perceptionList.add(Perception(it.objectId)) }
+                    bookinfo_recyclerView.adapter?.notifyDataSetChanged()
+                } else {
+                    Log.e("BookInfo", "Error loading perceptions: ${e.message}")
+                }
+            }
+        })
+    }
+
+    private fun setupRecyclerView() {
+        val layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.HORIZONTAL)
+        bookinfo_recyclerView.layoutManager = layoutManager
+        bookinfo_recyclerView.adapter = GoodsuibiAdapter(perceptionList)
+    }
+
+    private fun loadBookInfo() {
+        val queryBook = BmobQuery<Book_info_bmob>()
+        queryBook.addWhereEqualTo("name", bookName)
+        queryBook.findObjects(object : FindListener<Book_info_bmob>() {
+            override fun done(books: MutableList<Book_info_bmob>?, e: BmobException?) {
+                if (e == null && books != null && books.isNotEmpty()) {
+                    val book = books[0]
+                    loadBookCover(book.picture.url)
+                    if (book.buxing + book.tuijian + book.buxing != 0) {
+                        var tuijian_res: Double = 0.0
+                        tuijian_res = (book.tuijian) * 100.0 / (book.buxing + book.tuijian + book.yiban)
+                        progressBar_henhao.progress =
+                            book.tuijian * 100 / (book.buxing + book.tuijian + book.yiban)
+                        progressBar_yiban.progress =
+                            book.yiban * 100 / (book.buxing + book.tuijian + book.yiban)
+                        progressBar_buxing.progress =
+                            book.buxing * 100 / (book.buxing + book.tuijian + book.yiban)
+                        val str: String = String.format("%.2f", tuijian_res)
+                        textView10.text = "简书推荐值 " + str + "%"
+                    }
+                    updateBookRankings(book)
+                    Book_name_View.text = book.name
+                    book_authorname.text = book.author_name
+                    authorName = book.author_name
+                } else {
+                    Log.e("BookInfo", "Error loading book info: ${e?.message}")
+                }
+            }
+        })
+    }
+
+    private fun judgeInBookshelf() {
+        val queryBookshelf = BmobQuery<BookShelf>()
+        queryBookshelf.addWhereEqualTo("userid", userId)
+        queryBookshelf.addWhereEqualTo("b_name", bookName)
+        queryBookshelf.findObjects(object : FindListener<BookShelf>() {
+            override fun done(bookshelfItems: MutableList<BookShelf>?, e: BmobException?) {
+                if (e == null && bookshelfItems != null && bookshelfItems.isNotEmpty()) {
+                    bookinfo_addBook.setImageResource(R.drawable.bookshelf2)
+                }
+            }
+        })
+    }
+
+    private fun setClickListeners() {
+        book_authorname.setOnClickListener {
+            val intent = Intent(this, author_introductionActivity::class.java)
+            intent.putExtra("author_name", authorName)
+            startActivity(intent)
+        }
+
+        bookinfo_return.setOnClickListener {
+            val intent = Intent(this, MainActivity::class.java)
+            startActivity(intent)
+            finish()
+        }
+
+        bookinfo_addBook.setOnClickListener {
+            addBookToBookshelf()
+        }
+
+        book_imageview.setOnClickListener {
+            val intent = Intent(this, BookIntroActivity::class.java)
+            intent.putExtra("Book_name", bookName)
+            startActivity(intent)
+        }
+
+        setCommentClickListeners()
+    }
+
+    private fun addBookToBookshelf() {
+        val queryBookshelf = BmobQuery<BookShelf>()
+        queryBookshelf.addWhereEqualTo("userid", userId)
+        queryBookshelf.addWhereEqualTo("b_name", bookName)
+        queryBookshelf.findObjects(object : FindListener<BookShelf>() {
+            override fun done(bookshelfItems: MutableList<BookShelf>?, e: BmobException?) {
+                if (e == null && (bookshelfItems == null || bookshelfItems.isEmpty())) {
+                    val bookshelfRecord = BookShelf()
+                    bookshelfRecord.setb_name(bookName)
+                    bookshelfRecord.setuserid(userId)
+                    bookshelfRecord.save(object : SaveListener<String>() {
+                        override fun done(objectId: String?, saveException: BmobException?) {
+                            if (saveException == null) {
+                                bookinfo_addBook.setImageResource(R.drawable.bookshelf2)
+                                Toast.makeText(
+                                    this@BookInformationActivity,
+                                    "添加成功",
+                                    Toast.LENGTH_SHORT
+                                ).show()
+                            } else {
+                                Log.e(
+                                    "BookInfo",
+                                    "Error adding book to bookshelf: ${saveException.message}"
+                                )
+                            }
+                        }
+                    })
+                } else {
+                    Toast.makeText(this@BookInformationActivity, "书本已在您的书架中！", Toast.LENGTH_SHORT)
+                        .show()
+                }
+            }
+        })
+    }
+
+    private fun setCommentClickListeners() {
+        b_henhao.setOnClickListener { updateBookComment(true) }
+        b_yiban.setOnClickListener { updateBookComment(false) }
+        b_buxing.setOnClickListener { updateBookComment(false) }
+    }
+
+    private fun updateBookComment(isRecommended: Boolean) {
+        if (!isCommented) {
+            isCommented = true
+            val queryBook = BmobQuery<Book_info_bmob>()
+            queryBook.addWhereEqualTo("name", bookName)
+            queryBook.findObjects(object : FindListener<Book_info_bmob>() {
+                override fun done(books: List<Book_info_bmob>, e: BmobException?) {
+                    if (e == null) {
+                        for (book in books) {
+                            updateBookRankings(book, isRecommended)
+                        }
+                        Toast.makeText(this@BookInformationActivity, "评价成功！", Toast.LENGTH_LONG)
+                            .show()
+                    } else {
+                        Log.e("BookInfo", "Error updating book comment: ${e.message}")
+                    }
+                }
+            })
+        } else {
+            Toast.makeText(this, "仅能评价一次！", Toast.LENGTH_SHORT).show()
+        }
+    }
+
+    private fun updateBookRankings(book: Book_info_bmob, isRecommended: Boolean = false) {
+        if (isRecommended) {
+            book.settuijian(book.tuijian + 1)
+        } else {
+            book.setyiban(book.yiban + 1)
+            book.setbuxing(book.buxing + 1)
+        }
+        book.update(book.objectId, object : UpdateListener() {
+            override fun done(e: BmobException?) {
+                if (e != null) {
+                    Log.e("BookInfo", "Error updating book rankings: ${e.message}")
+                }
+            }
+        })
+    }
+    private fun loadBookCover(coverUrl: String) {
+        Glide.with(this) // 传入 Context
+            .load(coverUrl) // 加载图片的 URL
+            .placeholder(R.drawable.pre_load) // 设置占位图
+            .error(R.drawable.fail_load) // 设置加载失败时显示的图片
+            .into(book_imageview) // 将图片加载到指定的 ImageView 中
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/BookIntro.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/BookIntroActivity.kt
similarity index 89%
rename from app/src/main/java/com/zjgsu/jianshu/Activity/BookIntro.kt
rename to app/src/main/java/com/zjgsu/jianshu/Activity/BookIntroActivity.kt
index a9a644c..126c92e 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/BookIntro.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/BookIntroActivity.kt
@@ -1,5 +1,4 @@
-package com.zjgsu.jianshu.Activity
-
+package com.zjgsu.jianshu
 import android.content.Intent
 import android.os.Bundle
 import android.util.Log
@@ -9,14 +8,13 @@ import cn.bmob.v3.BmobQuery
 import cn.bmob.v3.exception.BmobException
 import cn.bmob.v3.listener.FindListener
 import com.zjgsu.jianshu.Bmob.Book_info_bmob
-import com.zjgsu.jianshu.Book_informationActivity
 import com.zjgsu.jianshu.R
 import kotlinx.android.synthetic.main.activity_book_info.*
 import kotlinx.android.synthetic.main.activity_bookintro.*
 import kotlinx.android.synthetic.main.expandable3.*
 import kotlinx.android.synthetic.main.expandable4.*
 
-class BookIntro:AppCompatActivity() {
+class BookIntroActivity:AppCompatActivity() {
     private lateinit var Bookname: String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
@@ -27,7 +25,7 @@ class BookIntro:AppCompatActivity() {
         Log.d("zy123","yes")
         inits()
         intro_titleback.setOnClickListener {
-            val intent = Intent(this, Book_informationActivity::class.java)
+            val intent = Intent(this, BookInformationActivity::class.java)
             intent.putExtra("Book_name", Bookname)
             startActivity(intent)
             finish()
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/BookShelfActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/BookShelfActivity.kt
index 036bbb5..b1c0228 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/BookShelfActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/BookShelfActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu
 
+import android.content.Context
 import android.content.Intent
 import android.os.Bundle
 import android.util.Log
@@ -38,10 +39,12 @@ class BookShelfActivity : AppCompatActivity() {
     val Booklist = ArrayList<Book_Shelf>()
     val Booklist2 = ArrayList<Book_Shelf>()
     lateinit var adapter:BookshelfAdapter
+    lateinit var userId:String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_bookshelf)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         inits()
         val layoutManager=GridLayoutManager(this,3)
         recyclerView2.layoutManager=layoutManager
@@ -90,7 +93,7 @@ class BookShelfActivity : AppCompatActivity() {
     }
     private fun inits() {
         val bmobQuery = BmobQuery<BookShelf>()
-        bmobQuery.addWhereEqualTo("userid", UserId)
+        bmobQuery.addWhereEqualTo("userid", userId)
         bmobQuery.findObjects(object : FindListener<BookShelf>() {
             override fun done(list: List<BookShelf>, e: BmobException?) {
                 if (e == null) {
@@ -121,7 +124,7 @@ class BookShelfActivity : AppCompatActivity() {
     private fun initbookshelf(){
         Booklist.clear()
         val bmobQuery = BmobQuery<BookShelf>()
-        bmobQuery.addWhereEqualTo("userid", UserId)
+        bmobQuery.addWhereEqualTo("userid", userId)
         bmobQuery.findObjects(object : FindListener<BookShelf>() {
             override fun done(list: List<BookShelf>, e: BmobException?) {
                 if (e == null) {
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/Book_informationActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/Book_informationActivity.kt
deleted file mode 100644
index 32ebc6d..0000000
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/Book_informationActivity.kt
+++ /dev/null
@@ -1,322 +0,0 @@
-package com.zjgsu.jianshu
-
-import android.content.Intent
-import android.graphics.Bitmap
-import android.graphics.BitmapFactory
-
-import android.util.Log
-import cn.bmob.v3.Bmob
-import cn.bmob.v3.BmobQuery
-import cn.bmob.v3.exception.BmobException
-import cn.bmob.v3.listener.FindListener
-import cn.bmob.v3.listener.UpdateListener
-import java.io.InputStream
-import java.net.HttpURLConnection
-import java.net.URL
-
-import android.os.Bundle
-import android.widget.Toast
-import androidx.appcompat.app.AppCompatActivity
-import androidx.recyclerview.widget.StaggeredGridLayoutManager
-import cn.bmob.v3.listener.SaveListener
-import com.zjgsu.jianshu.Activity.BookIntro
-import com.zjgsu.jianshu.Adapter.GoodsuibiAdapter
-import com.zjgsu.jianshu.Bmob.BookShelf
-import com.zjgsu.jianshu.Bmob.Book_info_bmob
-import com.zjgsu.jianshu.Bmob.Perception_bmob
-import kotlinx.android.synthetic.main.activity_book_info.*
-import kotlinx.android.synthetic.main.title.*
-
-
-class Book_informationActivity : AppCompatActivity() {
-    private var author_name: String = ""
-    private val perceptionList = ArrayList<Perception>()
-    var Mycomment: Boolean = false
-    private lateinit var Bookname: String
-    override fun onCreate(savedInstanceState: Bundle?) {
-        super.onCreate(savedInstanceState)
-        setContentView(R.layout.activity_book_info)
-        supportActionBar?.hide()
-        Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
-        Bookname = intent.getStringExtra("Book_name").toString()
-        inits()
-        val layoutManager =
-            StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.HORIZONTAL)//第一个参数是列数
-        recyclerView3.layoutManager = layoutManager
-        var adapter = GoodsuibiAdapter(perceptionList)
-        recyclerView3.adapter = adapter
-        val query = BmobQuery<Book_info_bmob>()
-        query.addWhereEqualTo("name", Bookname)
-        query.findObjects(object : FindListener<Book_info_bmob>() {
-            override fun done(p0: MutableList<Book_info_bmob>?, p1: BmobException?) {
-                if (p1 == null) {
-                    if (p0 != null && p0.size > 0) {
-                        for (p in p0) {
-                            object : Thread() {
-                                override fun run() {
-                                    try {
-                                        val url = URL(p!!.picture.url)
-                                        val connection: HttpURLConnection =
-                                            url.openConnection() as HttpURLConnection
-                                        connection.setRequestMethod("GET")
-                                        connection.setConnectTimeout(5000)
-                                        val `in`: InputStream = connection.getInputStream()
-                                        val bitmap: Bitmap =
-                                            BitmapFactory.decodeStream(`in`)
-                                        book_imageview.setImageBitmap(bitmap)
-
-                                    } catch (e: Exception) {
-                                        e.printStackTrace()
-                                    }
-                                }
-                            }.start()
-                            if (p.buxing + p.tuijian + p.buxing != 0) {
-                                var tuijian_res: Double = 0.0
-                                tuijian_res = (p.tuijian) * 100.0 / (p.buxing + p.tuijian + p.yiban)
-                                progressBar_henhao.progress =
-                                    p.tuijian * 100 / (p.buxing + p.tuijian + p.yiban)
-                                progressBar_yiban.progress =
-                                    p.yiban * 100 / (p.buxing + p.tuijian + p.yiban)
-                                progressBar_buxing.progress =
-                                    p.buxing * 100 / (p.buxing + p.tuijian + p.yiban)
-                                val str: String = String.format("%.2f", tuijian_res)
-                                textView10.text = "简书推荐值 " + str + "%"
-                            }
-                        }
-                    }
-                }
-            }
-        })
-//        val query1 = BmobQuery<Book_video>()
-//        query1.addWhereEqualTo("objectId", Bookname)
-//        query1.findObjects(object : FindListener<Book_video>() {
-//            override fun done(p0: MutableList<Book_video>?, p1: BmobException?) {
-//                if (p1 == null) {
-//                    if (p0 != null && p0.size > 0) {
-//                        for (p in p0) {
-//                            object : Thread() {
-//                                override fun run() {
-//                                    try {
-//                                        val url = Uri.parse(p!!.view1.url)
-//                                        mVideoView1.setVideoURI(url)
-//                                        mVideoView1.start()
-//
-//                                    } catch (e: Exception) {
-//                                        e.printStackTrace()
-//                                    }
-//                                }
-//                            }.start()
-//                        }
-//                    }
-//                }
-//            }
-//        })
-//        query1.findObjects(object : FindListener<Book_video>() {
-//            override fun done(p0: MutableList<Book_video>?, p1: BmobException?) {
-//                if (p1 == null) {
-//                    if (p0 != null && p0.size > 0) {
-//                        for (p in p0) {
-//                            object : Thread() {
-//                                override fun run() {
-//                                    try {
-//                                        val url = Uri.parse(p!!.view2.url)
-//                                        mVideoView2.setVideoURI(url)
-//                                        mVideoView2.start()
-//                                    } catch (e: Exception) {
-//                                        e.printStackTrace()
-//                                    }
-//                                }
-//                            }.start()
-//                        }
-//                    }
-//                }
-//            }
-//        })
-        query.findObjects(object : FindListener<Book_info_bmob>() {
-            override fun done(list: List<Book_info_bmob>, e: BmobException?) {
-                if (e == null) {
-                    for (i in list) {
-                        Book_name_View.text = i.name
-                        book_authorname.text = i.author_name
-                        author_name=i.author_name
-                    }
-                } else {
-                    Log.d("error", "error")
-                }
-            }
-        })
-        book_authorname.setOnClickListener {
-            val intent = Intent(this, author_introductionActivity::class.java)
-            intent.putExtra("author_name", author_name)
-            startActivity(intent)
-        }
-        b_henhao.setOnClickListener {
-            if (Mycomment == false) {
-                Mycomment = true
-                query.findObjects(object : FindListener<Book_info_bmob>() {
-                    override fun done(list: List<Book_info_bmob>, e: BmobException?) {
-                        if (e == null) {
-                            for (i in list) {
-                                i.settuijian(i.tuijian + 1)
-                                i.update(i.objectId, object : UpdateListener() {
-                                    override fun done(p0: BmobException?) {
-                                        if (p0 == null) {
-                                            Toast.makeText(
-                                                this@Book_informationActivity,
-                                                "评价成功！",
-                                                Toast.LENGTH_LONG
-                                            ).show()
-                                        } else {
-                                            Log.d(
-                                                "保存数据！！！！！！！！！！！！！！！！！！",
-                                                p0.message.toString()
-                                            )
-                                        }
-                                    }
-                                })
-                            }
-                        } else {
-                            Log.d("error", "error")
-                        }
-                    }
-                })
-            } else
-                Toast.makeText(this, "仅能评价一次！", Toast.LENGTH_SHORT).show()
-        }
-        b_yiban.setOnClickListener {
-            if (Mycomment == false) {
-                Mycomment = true
-                query.findObjects(object : FindListener<Book_info_bmob>() {
-                    override fun done(list: List<Book_info_bmob>, e: BmobException?) {
-                        if (e == null) {
-                            for (i in list) {
-                                i.setyiban(i.yiban + 1)
-                                i.update(i.objectId, object : UpdateListener() {
-                                    override fun done(p0: BmobException?) {
-                                        if (p0 == null) {
-                                            Toast.makeText(
-                                                this@Book_informationActivity,
-                                                "评价成功！",
-                                                Toast.LENGTH_LONG
-                                            ).show()
-                                        } else {
-                                            Log.d(
-                                                "保存数据！！！！！！！！！！！！！！！！！！",
-                                                p0.message.toString()
-                                            )
-                                        }
-                                    }
-                                })
-                            }
-                        } else {
-                            Log.d("error", "error")
-                        }
-                    }
-                })
-            } else
-                Toast.makeText(this, "仅能评价一次！", Toast.LENGTH_SHORT).show()
-        }
-        b_buxing.setOnClickListener {
-            if (Mycomment == false) {
-                Mycomment = true
-                query.findObjects(object : FindListener<Book_info_bmob>() {
-                    override fun done(list: List<Book_info_bmob>, e: BmobException?) {
-                        if (e == null) {
-                            for (i in list) {
-                                i.setbuxing(i.buxing + 1)
-                                i.update(i.objectId, object : UpdateListener() {
-                                    override fun done(p0: BmobException?) {
-                                        if (p0 == null) {
-                                            Toast.makeText(
-                                                this@Book_informationActivity,
-                                                "评价成功！",
-                                                Toast.LENGTH_LONG
-                                            ).show()
-                                        } else {
-                                            Log.d(
-                                                "保存数据！！！！！！！！！！！！！！！！！！",
-                                                p0.message.toString()
-                                            )
-                                        }
-                                    }
-                                })
-                            }
-                        } else {
-                            Log.d("error", "error")
-                        }
-                    }
-                })
-            } else
-                Toast.makeText(this, "仅能评价一次！", Toast.LENGTH_SHORT).show()
-        }
-        titleback.setOnClickListener {
-            val intent = Intent(this, MainActivity::class.java)
-            startActivity(intent)
-            finish()
-        }
-        titleAddBook.setOnClickListener {
-            val query = BmobQuery<BookShelf>()
-            query.addWhereEqualTo("userid", UserId)
-            query.addWhereEqualTo("b_name", Bookname)
-            query.findObjects(object : FindListener<BookShelf>() {
-                override fun done(p0: MutableList<BookShelf>?, p1: BmobException?) {
-                    if (p1 == null) {
-                        if (p0 != null && p0.size > 0) {
-                           Toast.makeText(this@Book_informationActivity, "书本已在您的书架中！", Toast.LENGTH_SHORT)
-                        } else {
-                            val bookshelf_record = BookShelf()
-                            bookshelf_record.settb_name(Bookname)
-                            bookshelf_record.setuserid(UserId)
-                            bookshelf_record.save(object : SaveListener<String>() {
-                                override fun done(objectId: String?, e: BmobException?) {
-                                    if (e == null) {
-                                        titleAddBook.setImageResource(R.drawable.bookshelf2)
-                                        Toast.makeText(this@Book_informationActivity,"添加成功",Toast.LENGTH_SHORT).show()
-                                    } else {
-
-                                    }
-                                }
-                            })
-                        }
-                    }
-                }
-            })
-        }
-        book_imageview.setOnClickListener {
-            val intent = Intent(this, BookIntro::class.java)
-            intent.putExtra("Book_name", Bookname)
-            startActivity(intent)
-            finish()
-        }
-    }
-
-    private fun inits() {
-        val myquery = BmobQuery<Perception_bmob>()
-        myquery.addWhereEqualTo("b_name", Bookname)
-        myquery.findObjects(object : FindListener<Perception_bmob>() {
-            override fun done(list: List<Perception_bmob>, e: BmobException?) {
-                if (e == null) {
-                    for (i in list) {
-                        perceptionList.add(Perception(i.objectId))
-                        val adapter = GoodsuibiAdapter(perceptionList)
-                        recyclerView3.adapter = adapter
-                    }
-                } else {
-                    Log.d("error", "error")
-                }
-            }
-        })
-        val myquery2 = BmobQuery<BookShelf>()
-        myquery2.addWhereEqualTo("userid", UserId)
-        myquery2.addWhereEqualTo("b_name", Bookname)
-        myquery2.findObjects(object : FindListener<BookShelf>() {
-            override fun done(p0: MutableList<BookShelf>?, p1: BmobException?) {
-                if (p1 == null) {
-                    if (p0 != null && p0.size > 0) {
-                        titleAddBook.setImageResource(R.drawable.bookshelf2)
-                    }
-                }
-            }
-        })
-    }
-}
\ No newline at end of file
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/GoodBookActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/GoodBookActivity.kt
index 2975351..2d7ed8b 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/GoodBookActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/GoodBookActivity.kt
@@ -1,4 +1,98 @@
-package com.zjgsu.jianshu.Activity
+package com.zjgsu.jianshu
 
-class GoodBookActivity {
+import android.content.Intent
+import android.os.Bundle
+import android.widget.Toast
+import androidx.appcompat.app.AppCompatActivity
+import androidx.recyclerview.widget.StaggeredGridLayoutManager
+import cn.bmob.v3.Bmob
+import cn.bmob.v3.BmobQuery
+import cn.bmob.v3.exception.BmobException
+import cn.bmob.v3.listener.FindListener
+import com.zjgsu.jianshu.Adapter.BookRankAdapter
+import com.zjgsu.jianshu.Bmob.Book_info_bmob
+import com.zjgsu.jianshu.Book_rank
+import com.zjgsu.jianshu.MainActivity
+import com.zjgsu.jianshu.NavigationHelper
+import com.zjgsu.jianshu.R
+import kotlinx.android.synthetic.main.activity_bookrank.*
+
+class GoodBookActivity : AppCompatActivity() {
+    private var goodbookList=ArrayList<Book_rank>()
+    lateinit var adapter: BookRankAdapter
+    override fun onCreate(savedInstanceState: Bundle?) {
+        super.onCreate(savedInstanceState)
+        setContentView(R.layout.activity_bookrank)
+        Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        adapter= BookRankAdapter(goodbookList,false)
+        bookrank_recyclerView.layoutManager=
+            StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
+        bookrank_recyclerView.adapter=adapter
+        bookrank_swipeRefresh.setOnRefreshListener {
+            loadBookRanks()    //下拉刷新
+        }
+        loadBookRanks()
+        bookrank_title.text="一周好评图书榜单"
+        bookrank_subtitle.text="10本・ 9852人关注"
+        returnTOCity()
+    }
+    private fun loadBookRanks(){
+        val queryGoodBooks = BmobQuery<Book_info_bmob>()
+        queryGoodBooks.findObjects(object : FindListener<Book_info_bmob>() {
+            override fun done(books: List<Book_info_bmob>?, e: BmobException?) {
+                if (e == null) {
+                    bookrank_swipeRefresh.isRefreshing = false
+                    // 清空之前的书籍列表
+                    goodbookList.clear()
+                    // 计算每本书的 good 比例，并构建 Book 对象加入列表
+                    books?.let {
+                        // 对书籍列表按照 good 比例进行排序
+                        val sortedBooks = it.sortedByDescending { book ->
+                            val total = book.tuijian + book.yiban + book.buxing
+                            if (total > 0) {
+                                book.tuijian.toDouble() / total.toDouble()  // 计算 good 的比例
+                            } else {
+                                0.0  // 如果总数为 0，比例设为 0
+                            }
+                        }
+                        // 获取前三名书籍
+                        val topThreeBooks = sortedBooks.take(10)
+                        topThreeBooks.forEach { b ->
+                            val tmp = b.tuijian + b.yiban + b.buxing
+                            val scorePercentage = if (tmp > 0) {
+                                (b.tuijian.toDouble() / tmp.toDouble()) * 100
+                            } else {
+                                0.0
+                            }
+                            val formattedScore = String.format("%.1f%%", scorePercentage)  // 将百分数格式化为带一位小数的字符串
+                            val bookRank = Book_rank(
+                                name = b.name,
+                                picUrl = b.picture.url,
+                                score = formattedScore,
+                                courtOfReaders = b.countOfReaders,
+                                author=b.author_name,
+                                intro=b.introduce
+                            )
+                            goodbookList.add(bookRank)
+                            adapter.notifyDataSetChanged()  // 确保在这里更新适配器
+                        }
+                    }
+                } else {
+                    // 处理错误情况
+                    Toast.makeText(
+                        this@GoodBookActivity,
+                        "Failed to retrieve books: ${e.message}",
+                        Toast.LENGTH_SHORT
+                    ).show()
+                }
+            }
+        })
+    }
+    private fun returnTOCity() {
+        bookrank_return.setOnClickListener {
+            val intent = Intent(this, MainActivity::class.java)
+            startActivity(intent)
+            finish() // 结束当前页面
+        }
+    }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/HotBookActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/HotBookActivity.kt
index f9695af..7dd0a6b 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/HotBookActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/HotBookActivity.kt
@@ -1,6 +1,8 @@
 package com.zjgsu.jianshu
+import android.content.Intent
 import android.os.Bundle
 import android.text.TextUtils
+import android.util.Log
 import android.widget.SearchView
 import android.widget.Toast
 import androidx.appcompat.app.AppCompatActivity
@@ -20,23 +22,26 @@ import kotlinx.android.synthetic.main.activity_main.*
 class HotBookActivity: AppCompatActivity() {
     private var hotbookList=ArrayList<Book_rank>()
     lateinit var adapter:BookRankAdapter
+    lateinit var currentPosition: Pair<Int, Int>
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_bookrank)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
-        adapter= BookRankAdapter(hotbookList)
+        adapter= BookRankAdapter(hotbookList,true)
         bookrank_recyclerView.layoutManager=StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
         bookrank_recyclerView.adapter=adapter
         bookrank_swipeRefresh.setOnRefreshListener {
             loadBookRanks()    //下拉刷新
         }
         loadBookRanks()
-        bookrank_title.text="热门图书榜单"
+        bookrank_title.text="一周热门图书榜单"
+        bookrank_subtitle.text="10本・ 8213人关注"
+        returnTOCity()
     }
     private fun loadBookRanks(){
         val queryHotBooks = BmobQuery<Book_info_bmob>()
         queryHotBooks.order("-countOfReaders") // 根据 countOfReaders 降序排序
-        queryHotBooks.setLimit(10) // 限制查询结果的数量为3
+        queryHotBooks.setLimit(10) // 限制查询结果的数量为10
         queryHotBooks.findObjects(object : FindListener<Book_info_bmob>() {
             override fun done(books: List<Book_info_bmob>?, e: BmobException?) {
                 bookrank_swipeRefresh.isRefreshing = false
@@ -69,9 +74,12 @@ class HotBookActivity: AppCompatActivity() {
             }
         })
     }
-    private fun returnTOCity(){
-        bookrank_return.setOnClickListener{
-            NavigationHelper.navigateTo(this, MainActivity::class.java)
+    //TODO：未来添加一个返回到上个页面指定位置的功能
+    private fun returnTOCity() {
+        bookrank_return.setOnClickListener {
+            val intent = Intent(this, MainActivity::class.java)
+            startActivity(intent)
+            finish() // 结束当前页面
         }
     }
 }
\ No newline at end of file
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/LoginActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/LoginActivity.kt
index 950bc9f..bfdc113 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/LoginActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/LoginActivity.kt
@@ -4,75 +4,71 @@ import android.content.Context
 import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
-import android.os.PersistableBundle
-import android.util.Log
-import android.widget.TextView
 import android.widget.Toast
-import androidx.core.content.ContextCompat
 import cn.bmob.v3.Bmob
 import cn.bmob.v3.BmobQuery
-import cn.bmob.v3.BmobUser
 import cn.bmob.v3.exception.BmobException
 import cn.bmob.v3.listener.FindListener
 import com.zjgsu.jianshu.Bmob.User_bmob
 import kotlinx.android.synthetic.main.activity_login.*
-import kotlinx.android.synthetic.main.activity_register.*
 
 class LoginActivity : AppCompatActivity() {
-    //    var mBtnLogin:TextView= TextView(this)
     override fun onCreate(savedInstanceState: Bundle?) {
-        var flag: Boolean = false
-        var done: Boolean = false
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_login)
-        Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
+        setClickListeners()
+    }
+
+    private fun setClickListeners() {
         forget_password.setOnClickListener {
-            val intent = Intent(this, FindpwdActivity::class.java)
-            startActivity(intent)
+            startActivity(Intent(this, FindpwdActivity::class.java))
             finish()
         }
+
         bt_register.setOnClickListener {
-            val intent = Intent(this, RegisterActivity::class.java)
-            startActivity(intent)
+            startActivity(Intent(this, RegisterActivity::class.java))
             finish()
         }
+
         bt_login.setOnClickListener {
-            val use_account: String = et_blackOutName.text.toString()
-            val use_pwd: String = et_UserPassword.text.toString()
-            val bmobQuery = BmobQuery<User_bmob>()
-            bmobQuery.findObjects(object : FindListener<User_bmob>() {
-                override fun done(list: List<User_bmob>, e: BmobException?) {
-                    if (e == null) {
-                        for (i in list) {
-                            if (use_account.equals(i.account) && use_pwd.equals(i.password)) {
-                                val editor=getSharedPreferences("userinf", Context.MODE_PRIVATE).edit()
-                                editor.putString("user_id",i.objectId)
-                                editor.apply()
-                                flag = true
-                                val intent = Intent(this@LoginActivity, MainActivity::class.java)
-                                intent.putExtra("userid",i.objectId)
-                                startActivity(intent)
-                                Toast.makeText(this@LoginActivity, "登陆成功！", Toast.LENGTH_SHORT)
-                                    .show()
-                                break
-                            }
-                        }
-                        done = true
-                    }
-                }
-            })
-            if (done) {
-                var a: String = ""
-                if (flag)
-                    a = "1"
-                else
-                    a = "0"
-                Log.d("zynnnb", a)
-                if (use_account.isEmpty() || use_pwd.isEmpty())
-                    Toast.makeText(this, "账号或密码不能为空白", Toast.LENGTH_SHORT).show()
-                else if (flag != true)
-                    Toast.makeText(this@LoginActivity, "账号或密码不正确", Toast.LENGTH_SHORT).show()
-            }
+            handleLogin()
         }
     }
-}
+
+    private fun handleLogin() {
+        val userAccount = et_blackOutName.text.toString()
+        val userPassword = et_UserPassword.text.toString()
+
+        if (userAccount.isEmpty() || userPassword.isEmpty()) {
+            Toast.makeText(this, "账号或密码不能为空白", Toast.LENGTH_SHORT).show()
+            return
+        }
+
+        val bmobQuery = BmobQuery<User_bmob>()
+        bmobQuery.findObjects(object : FindListener<User_bmob>() {
+            override fun done(users: List<User_bmob>, e: BmobException?) {
+                if (e == null) {
+                    for (user in users) {
+                        if (userAccount == user.account && userPassword == user.password) {
+                            saveUserInfo(user.objectId)
+                            startActivity(Intent(this@LoginActivity, MainActivity::class.java))
+                            Toast.makeText(this@LoginActivity, "登陆成功!", Toast.LENGTH_SHORT).show()
+                            finish()
+                            return
+                        }
+                    }
+                    Toast.makeText(this@LoginActivity, "账号或密码不正确", Toast.LENGTH_SHORT).show()
+                } else {
+                    Toast.makeText(this@LoginActivity, "登录时发生错误: ${e.message}", Toast.LENGTH_SHORT).show()
+                }
+            }
+        })
+    }
+
+    private fun saveUserInfo(userId: String) {
+        getSharedPreferences("userinf", Context.MODE_PRIVATE).edit()
+            .putString("user_id", userId)
+            .apply()
+    }
+}
\ No newline at end of file
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/MainActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/MainActivity.kt
index 0c2bb92..d9f4578 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/MainActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/MainActivity.kt
@@ -13,15 +13,12 @@ import cn.bmob.v3.Bmob
 import cn.bmob.v3.BmobQuery
 import cn.bmob.v3.exception.BmobException
 import cn.bmob.v3.listener.FindListener
-import cn.bmob.v3.listener.QueryListListener
 import com.zjgsu.jianshu.Adapter.BillboardAdapter
 import com.zjgsu.jianshu.Bmob.Book_bmob
 import com.zjgsu.jianshu.Bmob.Book_info_bmob
 import kotlinx.android.synthetic.main.activity_main.*
-import kotlinx.android.synthetic.main.book_rank_item.*
 import kotlinx.android.synthetic.main.layout_bottom_navigation.*
 
-var UserId: String = ""
 class MainActivity : AppCompatActivity() {
     private lateinit var adapter: BookAdapter
     private lateinit var billboardAdapter: BillboardAdapter
@@ -36,6 +33,8 @@ class MainActivity : AppCompatActivity() {
         supportActionBar?.setHomeAsUpIndicator(R.drawable.menu)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
         adapter = BookAdapter(bookList)
+//        val userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "") //全局范围内userid，登录的时候存进来
+//        Log.d("LoginActivity", "User ID: $userId")
         recyclerView.layoutManager =
             StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
         recyclerView.adapter = adapter
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/MyActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/MyActivity.kt
index 42c2c52..538e491 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/MyActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/MyActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu
 
+import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
@@ -24,15 +25,15 @@ class MyActivity : AppCompatActivity() {
 
     //登录的用户名
     public val user_account="0509"
-//    public val user="斤鱼"
-
+    lateinit var userId:String
 
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_my)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754") //连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         val query = BmobQuery<User_bmob>()
-        query.addWhereEqualTo("objectId", UserId)
+        query.addWhereEqualTo("objectId", userId)
         query.findObjects(object : FindListener<User_bmob>() {
             override fun done(p0: MutableList<User_bmob>?, p1: BmobException?) {
                 if (p1 == null) {
@@ -89,7 +90,7 @@ class MyActivity : AppCompatActivity() {
 
         tuichu.setOnClickListener {
             val intent= Intent(this,LoginActivity::class.java)
-            UserId=""
+            userId=""
             startActivity(intent)
             finish()
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/MyPostActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/MyPostActivity.kt
index afec7ed..853e8de 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/MyPostActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/MyPostActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu.Activity
 
+import android.content.Context
 import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
@@ -15,10 +16,12 @@ import kotlinx.android.synthetic.main.activity_my_post.*
 
 class MyPostActivity : AppCompatActivity() {
     private val PerceptionList = ArrayList<Perception>()
+    lateinit var userId:String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_my_post)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         inits()
 
         val layoutManager=LinearLayoutManager(this)
@@ -40,7 +43,7 @@ class MyPostActivity : AppCompatActivity() {
             override fun done(list: List<Perception_bmob>, e: BmobException?) {
                 if (e == null) {
                     for (i in list){
-                        if(i.userid== UserId) {
+                        if(i.userid== userId) {
                             PerceptionList.add(Perception(i.objectId))
                             val adapter = PerceptionAdapter(PerceptionList)
                             myPost_recyclerView.adapter = adapter
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/PerceptionActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/PerceptionActivity.kt
index ff11f0e..2255d89 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/PerceptionActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/PerceptionActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu
 
+import android.content.Context
 import android.content.Intent
 import androidx.appcompat.app.AppCompatActivity
 import android.os.Bundle
@@ -18,10 +19,12 @@ import kotlin.concurrent.thread
 
 class PerceptionActivity : AppCompatActivity() {
     private val PerceptionList = ArrayList<Perception>()
+    lateinit var userId:String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_perception)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         inits()
         val layoutManager=LinearLayoutManager(this)
         perception_recyclerView.layoutManager = layoutManager
@@ -39,7 +42,7 @@ class PerceptionActivity : AppCompatActivity() {
         }
         fab.setOnClickListener {
             val intent=Intent(this,sendPerceptionActivity::class.java)
-            intent.putExtra("userid", UserId)
+            intent.putExtra("userid", userId)
             startActivity(intent)
             finish()
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/Perception_informationActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/Perception_informationActivity.kt
index 88416d5..632ee87 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/Perception_informationActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/Perception_informationActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu.Activity
 
+import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
@@ -28,10 +29,12 @@ class Perception_informationActivity:AppCompatActivity() {
     private lateinit var perceptionid:String
     private lateinit var bookName:String
     private val commentlist=ArrayList<Comment>()
+    lateinit var userId:String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_perception_infomation)
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         perceptionid = intent.getStringExtra("PerceptionId").toString()
         Log.d("mytest",perceptionid)
         inits()
@@ -44,7 +47,7 @@ class Perception_informationActivity:AppCompatActivity() {
             val comment=Comment_bmob()
             comment.text=yourcomment.text.toString()
             comment.perceptionid=perceptionid
-            comment.comment_personid= UserId
+            comment.comment_personid= userId
             comment.save(object : SaveListener<String>() {
                 override fun done(objectId: String?, e: BmobException?) {
                     if (e == null) {
@@ -65,7 +68,7 @@ class Perception_informationActivity:AppCompatActivity() {
             })
         }
         inf_bookInf.setOnClickListener{
-            val intent = Intent(this, Book_informationActivity::class.java)
+            val intent = Intent(this, BookInformationActivity::class.java)
             intent.putExtra("Book_name", bookName)
             startActivity(intent)
             finish()
diff --git a/app/src/main/java/com/zjgsu/jianshu/Activity/sendPerceptionActivity.kt b/app/src/main/java/com/zjgsu/jianshu/Activity/sendPerceptionActivity.kt
index fe5e332..5dd3926 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Activity/sendPerceptionActivity.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Activity/sendPerceptionActivity.kt
@@ -1,5 +1,6 @@
 package com.zjgsu.jianshu.Activity
 
+import android.content.Context
 import android.content.Intent
 import android.graphics.Bitmap
 import android.graphics.BitmapFactory
@@ -25,11 +26,13 @@ import java.net.URL
 class sendPerceptionActivity:AppCompatActivity() {
     private var bookList = ArrayList<BookAuthor>()
     lateinit var myuserid:String
+    lateinit var userId:String
     override fun onCreate(savedInstanceState: Bundle?) {
         super.onCreate(savedInstanceState)
         setContentView(R.layout.activity_sendperception)
         supportActionBar?.hide()
         Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
+        userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
         myuserid=intent.getStringExtra("userid").toString()
         inits()
         val layoutManager =
@@ -94,7 +97,7 @@ class sendPerceptionActivity:AppCompatActivity() {
             override fun done(list:List<User_bmob>,e:BmobException?){
                 if(e==null){
                     for(i in list){
-                        if(i.objectId.equals(UserId)) {
+                        if(i.objectId.equals(userId)) {
                             object : Thread() {
                                 override fun run() {
                                     try {
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/BillboardAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/BillboardAdapter.kt
index dee565b..9005118 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/BillboardAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/BillboardAdapter.kt
@@ -40,7 +40,6 @@ class BillboardAdapter(var listOfbookRankList: List<List<Book_rank>>) : Recycler
         return ViewHolder(view)
     }
 
-
     override fun onBindViewHolder(holder: ViewHolder, position: Int) {
         val bookRankList = listOfbookRankList[position]
         Log.d("BillboardAdapter", "Size of bookRankList at position $position")
@@ -51,6 +50,7 @@ class BillboardAdapter(var listOfbookRankList: List<List<Book_rank>>) : Recycler
             holder.bookRank_decr3.text = "在读人数:"+bookRankList[2].courtOfReaders.toString()
             holder.bookRank_backimg.setOnClickListener {
                 val intent = Intent(holder.itemView.context, HotBookActivity::class.java)
+                // 保存当前页面的滚动位置
                 ContextCompat.startActivity(holder.itemView.context, intent, null)
             }
         }
@@ -59,7 +59,10 @@ class BillboardAdapter(var listOfbookRankList: List<List<Book_rank>>) : Recycler
             holder.bookRank_decr1.text = "简书推荐值:"+bookRankList[0].score
             holder.bookRank_decr2.text = "简书推荐值:"+bookRankList[1].score
             holder.bookRank_decr3.text = "简书推荐值:"+bookRankList[2].score
-
+            holder.bookRank_backimg.setOnClickListener {
+                val intent = Intent(holder.itemView.context, GoodBookActivity::class.java)
+                ContextCompat.startActivity(holder.itemView.context, intent, null)
+            }
         }
         holder.bookRank_name1.text = bookRankList[0].name
         Glide.with(holder.itemView.context)
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter.kt
index 688660a..c54ef98 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter.kt
@@ -43,15 +43,17 @@ inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
         holder.bookList_Introduce.text = book.introduce
         val backgrounds = arrayOf(R.drawable.color_lightpurple, R.drawable.color_lightblue,R.drawable.color_lightgreen, R.drawable.color_flesh)
         holder.innerLinearLayout.setBackgroundResource(backgrounds[position % backgrounds.size])
-        if (position == 0) { // 假设第一名使用金牌图片
-            holder.rankimg.setImageResource(R.drawable.gold)
-        } else if (position == 1) { // 第二名使用其他图片，以此类推
-            holder.rankimg.setImageResource(R.drawable.silver)
-        }
-        else if(position==2){
-            holder.rankimg.setImageResource(R.drawable.copper)
-        }
-        else holder.rankimg.setImageDrawable(null)
+
+//        //添加金银铜奖牌
+//        if (position == 0) { // 假设第一名使用金牌图片
+//            holder.rankimg.setImageResource(R.drawable.gold)
+//        } else if (position == 1) { // 第二名使用其他图片，以此类推
+//            holder.rankimg.setImageResource(R.drawable.silver)
+//        }
+//        else if(position==2){
+//            holder.rankimg.setImageResource(R.drawable.copper)
+//        }
+//        else holder.rankimg.setImageDrawable(null)
 
         Glide.with(holder.itemView.context)
             .load(book.picUrl) // 确保你的Book对象有正确的图片URL
@@ -59,7 +61,7 @@ inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
             .error(R.drawable.fail_load) // 设置加载失败的图
             .into(holder.bookList_Image)
         holder.outerLinearLayout.setOnClickListener{
-            val intent = Intent(holder.itemView.context, Book_informationActivity::class.java)
+            val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
             intent.putExtra("Book_name", book.name)
             ContextCompat.startActivity(holder.itemView.context, intent, null)
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter2.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter2.kt
index efa7021..b63c67f 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter2.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter2.kt
@@ -48,7 +48,7 @@ class BookAdapter2(val bookList: List<Book>) : RecyclerView.Adapter<BookAdapter2
             .error(R.drawable.fail_load) // 设置加载失败的图
             .into(holder.bookList_Image)
         holder.outerLinearLayout.setOnClickListener{
-            val intent = Intent(holder.itemView.context, Book_informationActivity::class.java)
+            val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
             intent.putExtra("Book_name", book.name)
             ContextCompat.startActivity(holder.itemView.context, intent, null)
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookRankAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookRankAdapter.kt
index 11a1cca..d21d941 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookRankAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookRankAdapter.kt
@@ -13,7 +13,7 @@ import androidx.recyclerview.widget.RecyclerView
 import com.bumptech.glide.Glide
 import com.zjgsu.jianshu.*
 
-class BookRankAdapter(var bookList: List<Book_rank>): RecyclerView.Adapter<BookRankAdapter.ViewHolder>() {
+class BookRankAdapter(var bookList: List<Book_rank>,val isHotList:Boolean): RecyclerView.Adapter<BookRankAdapter.ViewHolder>() {
     inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
         val bookrank_pic:ImageView=view.findViewById(R.id.bookrank_pic)
         val bookrank_intro:TextView=view.findViewById(R.id.bookrank_intro)
@@ -22,6 +22,7 @@ class BookRankAdapter(var bookList: List<Book_rank>): RecyclerView.Adapter<BookR
         val innerLinearLayout: LinearLayout = view.findViewById(R.id.bookrank_innerLinearLayout)
         val outerLinearLayout:LinearLayout=view.findViewById(R.id.bookrank_outerLinearLayout)
         val bookrank_author:TextView=view.findViewById(R.id.bookrank_author)
+        val bookrank_icon:ImageView=view.findViewById(R.id.bookrank_icon)
     }
 
     override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
@@ -37,17 +38,28 @@ class BookRankAdapter(var bookList: List<Book_rank>): RecyclerView.Adapter<BookR
             R.drawable.color_lightpurple, R.drawable.color_lightblue,
             R.drawable.color_lightgreen, R.drawable.color_flesh)
         holder.innerLinearLayout.setBackgroundResource(backgrounds[position % backgrounds.size])
-        holder.bookrank_desc.text="在读人数："+book.courtOfReaders
+        if(isHotList)
+            holder.bookrank_desc.text="在读人数："+book.courtOfReaders
+        else
+            holder.bookrank_desc.text="简书推荐值: "+book.score
         holder.bookrank_author.text=book.author
-//        if (position == 0) { // 假设第一名使用金牌图片
-//            holder.rankimg.setImageResource(R.drawable.gold)
-//        } else if (position == 1) { // 第二名使用其他图片，以此类推
-//            holder.rankimg.setImageResource(R.drawable.silver)
-//        }
-//        else if(position==2){
-//            holder.rankimg.setImageResource(R.drawable.copper)
-//        }
-//        else holder.rankimg.setImageDrawable(null)
+        when (position) {
+            0 -> {
+                holder.bookrank_icon.setImageResource(R.drawable.gold)
+                holder.bookrank_icon.visibility = View.VISIBLE
+            }
+            1 -> {
+                holder.bookrank_icon.setImageResource(R.drawable.silver)
+                holder.bookrank_icon.visibility = View.VISIBLE
+            }
+            2 -> {
+                holder.bookrank_icon.setImageResource(R.drawable.copper)
+                holder.bookrank_icon.visibility = View.VISIBLE
+            }
+            else -> {
+                holder.bookrank_icon.visibility = View.GONE
+            }
+        }
 
         Glide.with(holder.itemView.context)
             .load(book.picUrl) // 确保你的Book对象有正确的图片URL
@@ -55,7 +67,7 @@ class BookRankAdapter(var bookList: List<Book_rank>): RecyclerView.Adapter<BookR
             .error(R.drawable.fail_load) // 设置加载失败的图
             .into(holder.bookrank_pic)
         holder.outerLinearLayout.setOnClickListener{
-            val intent = Intent(holder.itemView.context, Book_informationActivity::class.java)
+            val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
             intent.putExtra("Book_name", book.name)
             ContextCompat.startActivity(holder.itemView.context, intent, null)
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/Book_authorAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/Book_authorAdapter.kt
index 78f2813..7f533a9 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/Book_authorAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/Book_authorAdapter.kt
@@ -24,6 +24,7 @@ import java.net.HttpURLConnection
 import java.net.URL
 
 class Book_authorAdapter(val bookList:List<BookAuthor>):RecyclerView.Adapter<Book_authorAdapter.ViewHolder>() {
+    lateinit var userId:String
     inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
         val bookList_Image: ImageView = view.findViewById(R.id.book_Image1)
         val addButton:Button=view.findViewById(R.id.addButton)
@@ -65,7 +66,7 @@ class Book_authorAdapter(val bookList:List<BookAuthor>):RecyclerView.Adapter<Boo
             }
         })
         val query1=BmobQuery<BookShelf>()
-        query1.addWhereEqualTo("userid", UserId)
+        query1.addWhereEqualTo("userid", userId)
         query1.addWhereEqualTo("b_name",book.name)
         query1.findObjects(object :FindListener<BookShelf>() {
             override fun done(p0: MutableList<BookShelf>?, p1: BmobException?) {
@@ -77,7 +78,7 @@ class Book_authorAdapter(val bookList:List<BookAuthor>):RecyclerView.Adapter<Boo
             }
         })
         holder.bookList_Image.setOnClickListener {
-            val intent= Intent(holder.itemView.context,Book_informationActivity::class.java)
+            val intent= Intent(holder.itemView.context,BookInformationActivity::class.java)
             intent.putExtra("Book_name",book.name)
             ContextCompat.startActivity(holder.itemView.context, intent, null)
         }
@@ -86,7 +87,7 @@ class Book_authorAdapter(val bookList:List<BookAuthor>):RecyclerView.Adapter<Boo
 //            intent.putExtra("Book_name",book.name)
 //            ContextCompat.startActivity(holder.itemView.context,intent,null)
             val query= BmobQuery<BookShelf>()
-            query.addWhereEqualTo("userid", UserId)
+            query.addWhereEqualTo("userid", userId)
             query.addWhereEqualTo("b_name",book.name)
             query.findObjects(object :FindListener<BookShelf>(){
                 override fun done(p0: MutableList<BookShelf>?, p1: BmobException?) {
@@ -96,8 +97,8 @@ class Book_authorAdapter(val bookList:List<BookAuthor>):RecyclerView.Adapter<Boo
                         }
                         else{
                             val bookshelf_record=BookShelf()
-                            bookshelf_record.settb_name(book.name)
-                            bookshelf_record.setuserid(UserId)
+                            bookshelf_record.setb_name(book.name)
+                            bookshelf_record.setuserid(userId)
                             bookshelf_record.save(object : SaveListener<String>() {
                                 override fun done(objectId: String?, e: BmobException?) {
                                     if (e == null) {
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookshelfAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookshelfAdapter.kt
index 466473f..48de42a 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/BookshelfAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/BookshelfAdapter.kt
@@ -199,7 +199,7 @@ class BookshelfAdapter(val context: Context, val bookshelf: ArrayList<Book_Shelf
         holder.book_img.setOnClickListener {
             val res = holder.book_img.getTag()
             if (res == "0") {
-                val intent = Intent(holder.itemView.context, Book_informationActivity::class.java)
+                val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
                 intent.putExtra("Book_name", book.bkname)
                 ContextCompat.startActivity(holder.itemView.context, intent, null)
             } else {
diff --git a/app/src/main/java/com/zjgsu/jianshu/Adapter/PerceptionAdapter.kt b/app/src/main/java/com/zjgsu/jianshu/Adapter/PerceptionAdapter.kt
index afdca73..ec95bbb 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Adapter/PerceptionAdapter.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Adapter/PerceptionAdapter.kt
@@ -151,7 +151,7 @@ class PerceptionAdapter(val perceptionList: List<Perception>) : RecyclerView.Ada
         })
 
         holder.perceptionList_bookInf.setOnClickListener(){
-            val intent= Intent(holder.itemView.context,Book_informationActivity::class.java)
+            val intent= Intent(holder.itemView.context,BookInformationActivity::class.java)
             intent.putExtra("Book_name",bookName)
             ContextCompat.startActivity(holder.itemView.context, intent, null)
         }
diff --git a/app/src/main/java/com/zjgsu/jianshu/Bmob/BookShelf.kt b/app/src/main/java/com/zjgsu/jianshu/Bmob/BookShelf.kt
index 48ae9b3..2671cfe 100644
--- a/app/src/main/java/com/zjgsu/jianshu/Bmob/BookShelf.kt
+++ b/app/src/main/java/com/zjgsu/jianshu/Bmob/BookShelf.kt
@@ -5,7 +5,7 @@ import cn.bmob.v3.BmobObject
 class BookShelf:BmobObject(){
     var b_name:String = ""
     var userid:String=""
-    fun settb_name(bookname: String){
+    fun setb_name(bookname: String){
         this.b_name=bookname
     }
     fun setuserid(uid: String){
diff --git a/app/src/main/res/drawable/edit_bg.xml b/app/src/main/res/drawable/edit_bg.xml
index 465f615..74ae8d8 100644
--- a/app/src/main/res/drawable/edit_bg.xml
+++ b/app/src/main/res/drawable/edit_bg.xml
@@ -12,8 +12,8 @@
                     android:radius="5dip"
                     />
                 <stroke
-                    android:width="0.1px"
-                    android:color="#E0FFFF"/>
+                    android:width="2dp"
+                    android:color="#000000"/>
             </shape>
         </item>
     </layer-list>
diff --git a/app/src/main/res/drawable/white_button_bg.xml b/app/src/main/res/drawable/white_button_bg.xml
new file mode 100644
index 0000000..33ce803
--- /dev/null
+++ b/app/src/main/res/drawable/white_button_bg.xml
@@ -0,0 +1,7 @@
+<?xml version="1.0" encoding="utf-8"?>
+<shape xmlns:android="http://schemas.android.com/apk/res/android"
+    android:shape="rectangle">
+    <solid android:color="@android:color/white" />
+    <stroke android:width="2dp" android:color="@color/black" />
+    <corners android:radius="4dp" />
+</shape>
\ No newline at end of file
diff --git a/app/src/main/res/layout/activity_book_info.xml b/app/src/main/res/layout/activity_book_info.xml
index eb9973c..bd3c58d 100644
--- a/app/src/main/res/layout/activity_book_info.xml
+++ b/app/src/main/res/layout/activity_book_info.xml
@@ -12,7 +12,7 @@
             android:layout_width="match_parent"
             android:layout_height="wrap_content"
             android:orientation="vertical" >
-<include layout="@layout/title"/>
+        <include layout="@layout/bookinfo_title"/>
             <LinearLayout
                 android:layout_width="match_parent"
                 android:layout_height="400dp"
@@ -166,7 +166,7 @@
                 android:layout_width="match_parent"
                 android:layout_height="match_parent">
             <androidx.recyclerview.widget.RecyclerView
-                android:id="@+id/recyclerView3"
+                android:id="@+id/bookinfo_recyclerView"
                 android:layout_width="match_parent"
                 android:layout_height="match_parent"/>
             </LinearLayout>
diff --git a/app/src/main/res/layout/activity_bookrank.xml b/app/src/main/res/layout/activity_bookrank.xml
index 60f093e..83dec6d 100644
--- a/app/src/main/res/layout/activity_bookrank.xml
+++ b/app/src/main/res/layout/activity_bookrank.xml
@@ -1,6 +1,5 @@
 <?xml version="1.0" encoding="utf-8"?>
 <androidx.drawerlayout.widget.DrawerLayout xmlns:android="http://schemas.android.com/apk/res/android"
-    xmlns:app="http://schemas.android.com/apk/res-auto"
     android:id="@+id/categoryPage_drawerLayout"
     android:layout_width="match_parent"
     android:layout_height="match_parent">
@@ -12,38 +11,55 @@
 
         <!-- 左侧返回按钮和推荐标题 -->
         <LinearLayout
-            android:layout_width="wrap_content"
+            android:layout_width="match_parent"
             android:layout_height="wrap_content"
-            android:orientation="horizontal">
+            android:orientation="horizontal"
+            android:gravity="center_vertical">
 
-            <ImageView
-                android:id="@+id/bookrank_return"
-                android:layout_width="40dp"
-                android:layout_height="40dp"
-                android:src="@drawable/return1" />
-
-        </LinearLayout>
-        <LinearLayout
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:orientation="vertical">
-        <!-- 标题 -->
-        <TextView
-            android:id="@+id/bookrank_title"
-            android:layout_width="wrap_content"
-            android:layout_height="wrap_content"
-            android:fontFamily="sans-serif"
-            android:text="文学"
-            android:textColor="@color/black"
-            android:textSize="16sp"
-            android:textStyle="bold" />
-            <TextView
-                android:layout_width="wrap_content"
+            <LinearLayout
+                android:layout_width="0dp"
                 android:layout_height="wrap_content"
-                android:fontFamily="sans-serif"
-                android:text="10本"
+                android:layout_weight="1"
+                android:orientation="horizontal">
+
+                <ImageView
+                    android:id="@+id/bookrank_return"
+                    android:layout_width="40dp"
+                    android:layout_height="40dp"
+                    android:src="@drawable/return1" />
+
+                <LinearLayout
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:orientation="vertical">
+                    <!-- 标题 -->
+                    <TextView
+                        android:id="@+id/bookrank_title"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:fontFamily="sans-serif"
+                        android:text="文学"
+                        android:textColor="@color/black"
+                        android:textSize="16sp"
+                        android:textStyle="bold" />
+                    <TextView
+                        android:id="@+id/bookrank_subtitle"
+                        android:layout_width="wrap_content"
+                        android:layout_height="wrap_content"
+                        android:fontFamily="sans-serif"
+                        android:text="10本・ 8213人关注"
+                        android:textSize="16sp" />
+                </LinearLayout>
+
+            </LinearLayout>
+
+            <Button
+                android:layout_width="60dp"
+                android:layout_height="30dp"
+                android:text="+ 关注"
+                android:layout_marginRight="30dp"
                 android:textColor="@color/black"
-                android:textSize="16sp" />
+                android:background="@drawable/white_button_bg" />
         </LinearLayout>
 
     </LinearLayout>
diff --git a/app/src/main/res/layout/activity_login.xml b/app/src/main/res/layout/activity_login.xml
index 6c07124..7897579 100644
--- a/app/src/main/res/layout/activity_login.xml
+++ b/app/src/main/res/layout/activity_login.xml
@@ -52,7 +52,6 @@
                 android:id="@+id/et_blackOutName"
                 android:layout_width="match_parent"
                 android:layout_height="50dp"
-                android:background="@drawable/edit_bg"
                 android:hint="请输入账号"
                 android:paddingLeft="2dp"
                 android:textSize="20sp" />
@@ -78,7 +77,6 @@
                 android:id="@+id/et_UserPassword"
                 android:layout_width="250dp"
                 android:layout_height="50dp"
-                android:background="@drawable/edit_bg"
                 android:hint="密码"
                 android:inputType="textPassword"
                 android:paddingLeft="2dp"
diff --git a/app/src/main/res/layout/book_rank2_item.xml b/app/src/main/res/layout/book_rank2_item.xml
index 4d45da5..3cd845c 100644
--- a/app/src/main/res/layout/book_rank2_item.xml
+++ b/app/src/main/res/layout/book_rank2_item.xml
@@ -21,12 +21,26 @@
             android:orientation="horizontal">
 
             <!-- 图书封面 -->
-            <ImageView
-                android:id="@+id/bookrank_pic"
+            <RelativeLayout
                 android:layout_width="0dp"
                 android:layout_height="match_parent"
-                android:layout_weight="50"
-                android:src="@drawable/pre_load" /> <!-- 替换为实际的封面图片资源 -->
+                android:layout_weight="50">
+                <!-- 图书封面 -->
+                <ImageView
+                    android:id="@+id/bookrank_pic"
+                    android:layout_width="match_parent"
+                    android:layout_height="match_parent"
+                    android:src="@drawable/pre_load" />
+
+                <!-- 图标 -->
+                <ImageView
+                    android:id="@+id/bookrank_icon"
+                    android:layout_width="wrap_content"
+                    android:layout_height="wrap_content"
+                    android:layout_alignParentTop="true"
+                    android:layout_alignParentStart="true"
+                    android:src="@drawable/gold" />
+            </RelativeLayout>
             <LinearLayout
                 android:id="@+id/bookrank_innerLinearLayout"
                 android:layout_width="wrap_content"
@@ -89,7 +103,6 @@
                     android:textSize="14sp" />
             </LinearLayout>
 
-            <!-- 喜欢图标和文字 -->
             <LinearLayout
                 android:layout_width="wrap_content"
                 android:layout_height="wrap_content"
@@ -98,16 +111,16 @@
                 android:paddingEnd="16dp">
 
                 <ImageView
-                    android:id="@+id/ivLikeIcon"
+                    android:id="@+id/bookrank_addbook"
                     android:layout_width="24dp"
                     android:layout_height="24dp"
-                    android:src="@drawable/addBook" /> <!-- 替换为实际的喜欢图标资源 -->
+                    android:src="@drawable/addbook" />
 
                 <TextView
                     android:id="@+id/tvLikeText"
                     android:layout_width="wrap_content"
                     android:layout_height="wrap_content"
-                    android:text="想读"
+                    android:text="加入书架"
                     android:textSize="12sp" />
             </LinearLayout>
         </LinearLayout>
diff --git a/app/src/main/res/layout/title.xml b/app/src/main/res/layout/bookinfo_title.xml
similarity index 77%
rename from app/src/main/res/layout/title.xml
rename to app/src/main/res/layout/bookinfo_title.xml
index 5c3934d..e0109ed 100644
--- a/app/src/main/res/layout/title.xml
+++ b/app/src/main/res/layout/bookinfo_title.xml
@@ -4,15 +4,11 @@
     android:layout_width="match_parent"
     android:layout_height="45dp">
 
-    <Button
-        android:id="@+id/titleback"
-        android:layout_width="35dp"
-        android:layout_height="35dp"
-        android:layout_gravity="center"
-        android:layout_margin="5dp"
-        android:background="@drawable/return1"
-        android:text="Back"
-        android:textColor="#fff" />
+    <ImageView
+        android:id="@+id/bookinfo_return"
+        android:layout_width="40dp"
+        android:layout_height="40dp"
+        android:src="@drawable/return1" />
 
     <TextView
         android:id="@+id/textView5"
@@ -25,7 +21,7 @@
         android:text="添加图书" />
 
     <ImageView
-        android:id="@+id/titleAddBook"
+        android:id="@+id/bookinfo_addBook"
         android:layout_width="34dp"
         android:layout_height="30dp"
         android:layout_gravity="center"
diff --git a/app/src/main/res/values-night/themes.xml b/app/src/main/res/values-night/themes.xml
deleted file mode 100644
index d295c4a..0000000
--- a/app/src/main/res/values-night/themes.xml
+++ /dev/null
@@ -1,16 +0,0 @@
-<resources xmlns:tools="http://schemas.android.com/tools">
-    <!-- Base application theme. -->
-    <style name="Theme.Jianshu" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
-        <!-- Primary brand color. -->
-        <item name="colorPrimary">@color/purple_200</item>
-        <item name="colorPrimaryVariant">@color/purple_700</item>
-        <item name="colorOnPrimary">@color/black</item>
-        <!-- Secondary brand color. -->
-        <item name="colorSecondary">@color/teal_200</item>
-        <item name="colorSecondaryVariant">@color/teal_200</item>
-        <item name="colorOnSecondary">@color/black</item>
-        <!-- Status bar color. -->
-        <item name="android:statusBarColor" tools:targetApi="l">?attr/colorPrimaryVariant</item>
-        <!-- Customize your theme here. -->
-    </style>
-</resources>
\ No newline at end of file
diff --git a/app/src/main/res/values/themes.xml b/app/src/main/res/values/themes.xml
index 435bacf..43ca30d 100644
--- a/app/src/main/res/values/themes.xml
+++ b/app/src/main/res/values/themes.xml
@@ -1,6 +1,6 @@
 <resources xmlns:tools="http://schemas.android.com/tools">
     <!-- Base application theme. -->
-    <style name="Theme.Jianshu" parent="Theme.MaterialComponents.DayNight.DarkActionBar">
+    <style name="Theme.Jianshu" parent="Theme.MaterialComponents.DayNight.NoActionBar.Bridge">
         <!-- Primary brand color. -->
         <item name="colorPrimary">@color/mydarkbalck</item>
         <item name="colorPrimaryVariant">@color/purple_700</item>
diff --git a/readme.txt b/readme.txt
new file mode 100644
index 0000000..6cb59a3
--- /dev/null
+++ b/readme.txt
@@ -0,0 +1 @@
+安卓项目是面向用户的，目前数据库设计有点问题，应该“管理员”专门设置一个热门图书表和好评图书表，而不要用户自己来查图片
\ No newline at end of file