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跳转功能完善，可以返回上个页面

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This commit is contained in:
zhangsan 2024-04-30 09:41:24 +08:00
parent 985582f8de
commit 9210235f45
15 changed files with 124 additions and 36 deletions
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21
app/src/main/java/com/zjgsu/jianshu/Activity/BookInformationActivity.kt
View File

@ -29,12 +29,14 @@ class BookInformationActivity : AppCompatActivity() {
private lateinit var authorName: String
private lateinit var userId:String
private lateinit var picurl:String
private var sourceActivityClass: Class<*>? = null
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()
sourceActivityClass = intent.getSerializableExtra("Source_Activity") as? Class<*>
loadPerceptions()
setupRecyclerView()
loadBookInfo()
@ -102,7 +104,7 @@ class BookInformationActivity : AppCompatActivity() {
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)
bookinfo_addBook.setImageResource(R.drawable.alreadyin)
}
}
})
@ -117,8 +119,15 @@ class BookInformationActivity : AppCompatActivity() {
}
//TODO:不一定回到MainActivity::class，后面还要在跳转前保存上一个页面
bookinfo_return.setOnClickListener {
if (sourceActivityClass != null) {
// 返回到上一个页面
val intent = Intent(this, sourceActivityClass!!)
startActivity(intent)
} else {
// 如果没有来源页面信息,则返回到 MainActivity
val intent = Intent(this, MainActivity::class.java)
startActivity(intent)
}
finish()
}
@ -131,10 +140,14 @@ class BookInformationActivity : AppCompatActivity() {
intent.putExtra("Book_name", bookName)
startActivity(intent)
}
toBookshelf.setOnClickListener {
val intent = Intent(this, BookShelfActivity::class.java)
startActivity(intent)
}
setCommentClickListeners()
}
//TODO:以后可以考虑再次点击这个“已加入的按钮”后，弹出一个对话框：是否将该书移除，然后将该书从书架中移除。而不是弹：该书已在您的书架中
private fun addBookToBookshelf() {
val queryBookshelf = BmobQuery<BookShelf>()
queryBookshelf.addWhereEqualTo("userid", userId)
@ -149,7 +162,7 @@ class BookInformationActivity : AppCompatActivity() {
bookshelfRecord.save(object : SaveListener<String>() {
override fun done(objectId: String?, saveException: BmobException?) {
if (saveException == null) {
bookinfo_addBook.setImageResource(R.drawable.bookshelf2)
bookinfo_addBook.setImageResource(R.drawable.alreadyin)
Toast.makeText(
this@BookInformationActivity,
"添加成功",
@ -164,7 +177,7 @@ class BookInformationActivity : AppCompatActivity() {
}
})
} else {
Toast.makeText(this@BookInformationActivity, "书本已在您的书架中！", Toast.LENGTH_SHORT)
Toast.makeText(this@BookInformationActivity, "该书已在您的书架中！", Toast.LENGTH_SHORT)
.show()
}
}

4
app/src/main/java/com/zjgsu/jianshu/Activity/GoodBookActivity.kt
View File

@ -1,5 +1,6 @@
package com.zjgsu.jianshu
import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.widget.Toast
@ -24,7 +25,8 @@ class GoodBookActivity : AppCompatActivity() {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_bookrank)
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
adapter= BookRankAdapter(goodbookList,false)
val userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString() //全局范围内userid，登录的时候存进来
adapter= BookRankAdapter(this,goodbookList,false,userId)
bookrank_recyclerView.layoutManager=
StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
bookrank_recyclerView.adapter=adapter

4
app/src/main/java/com/zjgsu/jianshu/Activity/HotBookActivity.kt
View File

@ -1,4 +1,5 @@
package com.zjgsu.jianshu
import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.text.TextUtils
@ -27,7 +28,8 @@ class HotBookActivity: AppCompatActivity() {
super.onCreate(savedInstanceState)
setContentView(R.layout.activity_bookrank)
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")//连接bmob
adapter= BookRankAdapter(hotbookList,true)
val userId = getSharedPreferences("userinf", Context.MODE_PRIVATE).getString("user_id", "").toString()
adapter= BookRankAdapter(this,hotbookList,true,userId)
bookrank_recyclerView.layoutManager=StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
bookrank_recyclerView.adapter=adapter
bookrank_swipeRefresh.setOnRefreshListener {

2
app/src/main/java/com/zjgsu/jianshu/Activity/LiteratureActivity.kt
View File

@ -30,7 +30,7 @@ class LiteratureActivity : AppCompatActivity() {
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
val titleTextView = findViewById<TextView>(R.id.categoryPage_title)
titleTextView.text = "文学"
adapter = BookAdapter2(bookList)
adapter = BookAdapter2(bookList,1)
categoryPage_recyclerView.layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
categoryPage_recyclerView.adapter = adapter
categoryPage_swipeRefresh.setOnRefreshListener {

1
app/src/main/java/com/zjgsu/jianshu/Activity/MainActivity.kt
View File

@ -1,5 +1,6 @@
package com.zjgsu.jianshu
import android.content.Context
import android.content.Intent
import android.os.Bundle
import android.text.TextUtils

2
app/src/main/java/com/zjgsu/jianshu/Activity/ManagementActivity.kt
View File

@ -29,7 +29,7 @@ class ManagementActivity:AppCompatActivity() {
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
val titleTextView = findViewById<TextView>(R.id.categoryPage_title)
titleTextView.text = "管理学"
adapter = BookAdapter2(bookList)
adapter = BookAdapter2(bookList,2)
categoryPage_recyclerView.layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
categoryPage_recyclerView.adapter = adapter
categoryPage_swipeRefresh.setOnRefreshListener {

2
app/src/main/java/com/zjgsu/jianshu/Activity/PhilosophyActivity.kt
View File

@ -30,7 +30,7 @@ class PhilosophyActivity:AppCompatActivity() {
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
val titleTextView = findViewById<TextView>(R.id.categoryPage_title)
titleTextView.text = "哲学"
adapter = BookAdapter2(bookList)
adapter = BookAdapter2(bookList,5)
categoryPage_recyclerView.layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
categoryPage_recyclerView.adapter = adapter
categoryPage_swipeRefresh.setOnRefreshListener {

2
app/src/main/java/com/zjgsu/jianshu/Activity/PsychologyActivity.kt
View File

@ -29,7 +29,7 @@ class PsychologyActivity:AppCompatActivity() {
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
val titleTextView = findViewById<TextView>(R.id.categoryPage_title)
titleTextView.text = "心理学"
adapter = BookAdapter2(bookList)
adapter = BookAdapter2(bookList,3)
categoryPage_recyclerView.layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
categoryPage_recyclerView.adapter = adapter
categoryPage_swipeRefresh.setOnRefreshListener {

2
app/src/main/java/com/zjgsu/jianshu/Activity/ScienceActivity.kt
View File

@ -30,7 +30,7 @@ class ScienceActivity:AppCompatActivity() {
Bmob.initialize(this, "8f9f1d1ea520b0ce4f84a6fa83a5f754")
val titleTextView = findViewById<TextView>(R.id.categoryPage_title)
titleTextView.text = "科学"
adapter = BookAdapter2(bookList)
adapter = BookAdapter2(bookList,4)
categoryPage_recyclerView.layoutManager = StaggeredGridLayoutManager(1, StaggeredGridLayoutManager.VERTICAL)
categoryPage_recyclerView.adapter = adapter
categoryPage_swipeRefresh.setOnRefreshListener {

1
app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter.kt
View File

@ -63,6 +63,7 @@ inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
holder.outerLinearLayout.setOnClickListener{
val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
intent.putExtra("Book_name", book.name)
intent.putExtra("Source_Activity", MainActivity::class.java)
ContextCompat.startActivity(holder.itemView.context, intent, null)
}
}

2
app/src/main/java/com/zjgsu/jianshu/Adapter/BookAdapter2.kt
View File

@ -25,7 +25,7 @@ import java.io.InputStream
import java.net.HttpURLConnection
import java.net.URL
class BookAdapter2(val bookList: List<Book>) : RecyclerView.Adapter<BookAdapter2.ViewHolder>() {
class BookAdapter2(val bookList: List<Book>,val categoryId:Int) : RecyclerView.Adapter<BookAdapter2.ViewHolder>() {
inner class ViewHolder(view: View) : RecyclerView.ViewHolder(view) {
val bookList_Image: ImageView = view.findViewById(R.id.book_Image)

74
app/src/main/java/com/zjgsu/jianshu/Adapter/BookRankAdapter.kt
View File

@ -1,19 +1,29 @@
package com.zjgsu.jianshu.Adapter
import android.content.Context
import android.content.Intent
import android.media.Image
import android.util.Log
import android.view.LayoutInflater
import android.view.View
import android.view.ViewGroup
import android.widget.ImageView
import android.widget.LinearLayout
import android.widget.TextView
import android.widget.Toast
import androidx.core.content.ContextCompat
import androidx.recyclerview.widget.RecyclerView
import cn.bmob.v3.BmobQuery
import cn.bmob.v3.exception.BmobException
import cn.bmob.v3.listener.FindListener
import cn.bmob.v3.listener.SaveListener
import com.bumptech.glide.Glide
import com.zjgsu.jianshu.*
import com.zjgsu.jianshu.Bmob.BookShelf
import kotlinx.android.synthetic.main.bookinfo_title.*
class BookRankAdapter(var bookList: List<Book_rank>,val isHotList:Boolean): RecyclerView.Adapter<BookRankAdapter.ViewHolder>() {
class BookRankAdapter(private val context: Context,var bookList: List<Book_rank>, val isHotList: Boolean, val userId: String) :
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)
@ -23,10 +33,13 @@ class BookRankAdapter(var bookList: List<Book_rank>,val isHotList:Boolean): Recy
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)
val bookrank_addbook: ImageView = view.findViewById(R.id.bookrank_addbook)
val bookrank_add:TextView=view.findViewById(R.id.bookrank_add)
}
override fun onCreateViewHolder(parent: ViewGroup, viewType: Int): ViewHolder {
val view = LayoutInflater.from(parent.context).inflate(R.layout.book_rank2_item, parent, false)
val view =
LayoutInflater.from(parent.context).inflate(R.layout.book_rank2_item, parent, false)
return ViewHolder(view)
}
@ -36,7 +49,8 @@ class BookRankAdapter(var bookList: List<Book_rank>,val isHotList:Boolean): Recy
holder.bookrank_intro.text = book.intro
val backgrounds = arrayOf(
R.drawable.color_lightpurple, R.drawable.color_lightblue,
R.drawable.color_lightgreen, R.drawable.color_flesh)
R.drawable.color_lightgreen, R.drawable.color_flesh
)
holder.innerLinearLayout.setBackgroundResource(backgrounds[position % backgrounds.size])
if (isHotList)
holder.bookrank_desc.text = "在读人数：" + book.courtOfReaders
@ -69,8 +83,62 @@ class BookRankAdapter(var bookList: List<Book_rank>,val isHotList:Boolean): Recy
holder.outerLinearLayout.setOnClickListener {
val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
intent.putExtra("Book_name", book.name)
if(isHotList)
intent.putExtra("Source_Activity", HotBookActivity::class.java)
else
intent.putExtra("Source_Activity", GoodBookActivity::class.java)
ContextCompat.startActivity(holder.itemView.context, intent, null)
}
holder.bookrank_addbook.setOnClickListener {
val queryBookshelf = BmobQuery<BookShelf>()
queryBookshelf.addWhereEqualTo("userid", userId)
queryBookshelf.addWhereEqualTo("b_name", book.name)
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(book.name)
bookshelfRecord.setuserid(userId)
bookshelfRecord.setpicurl(book.picUrl)
bookshelfRecord.save(object : SaveListener<String>() {
override fun done(objectId: String?, saveException: BmobException?) {
if (saveException == null) {
holder.bookrank_addbook.setImageResource(R.drawable.bookshelf2)
Toast.makeText(
context,
"添加成功",
Toast.LENGTH_SHORT
).show()
} else {
Log.e(
"BookInfo",
"Error adding book to bookshelf: ${saveException.message}"
)
}
}
})
} else {
Toast.makeText(context, "该书已在您的书架中！", Toast.LENGTH_SHORT)
.show()
}
}
})
}
fun judgeInBookshelf() {
val queryBookshelf = BmobQuery<BookShelf>()
queryBookshelf.addWhereEqualTo("userid", userId)
queryBookshelf.addWhereEqualTo("b_name", book.name)
queryBookshelf.findObjects(object : FindListener<BookShelf>() {
override fun done(bookshelfItems: MutableList<BookShelf>?, e: BmobException?) {
if (e == null && bookshelfItems != null && bookshelfItems.isNotEmpty()) {
holder.bookrank_addbook.setImageResource(R.drawable.alreadyin)
holder.bookrank_add.text="已加入"
}
}
})
}
judgeInBookshelf()
}
override fun getItemCount() = bookList.size
}

1
app/src/main/java/com/zjgsu/jianshu/Adapter/BookshelfAdapter.kt
View File

@ -61,6 +61,7 @@ class BookshelfAdapter(val context: Context, val bookshelf: ArrayList<Book_Shelf
} else {
val intent = Intent(holder.itemView.context, BookInformationActivity::class.java)
intent.putExtra("Book_name", book.bkname)
intent.putExtra("Source_Activity", BookShelfActivity::class.java)
ContextCompat.startActivity(holder.itemView.context, intent, null)
}
}

4
app/src/main/res/layout/book_rank2_item.xml
View File

@ -8,7 +8,6 @@
app:cardElevation="4dp">
<LinearLayout
android:id="@+id/bookrank_outerLinearLayout"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:orientation="vertical"
@ -16,6 +15,7 @@
<!-- 第一行：图书封面和简介 -->
<LinearLayout
android:id="@+id/bookrank_outerLinearLayout"
android:layout_width="match_parent"
android:layout_height="200dp"
android:orientation="horizontal">
@ -117,7 +117,7 @@
android:src="@drawable/addbook" />
<TextView
android:id="@+id/tvLikeText"
android:id="@+id/bookrank_add"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="加入书架"

10
app/src/main/res/layout/bookinfo_title.xml
View File

@ -25,15 +25,15 @@
android:layout_width="34dp"
android:layout_height="30dp"
android:layout_gravity="center"
app:srcCompat="@drawable/bookshelf1" />
app:srcCompat="@drawable/addbook" />
<ImageView
android:id="@+id/imageView2"
android:layout_width="37dp"
android:layout_height="41dp"
android:id="@+id/toBookshelf"
android:layout_width="34dp"
android:layout_height="30dp"
android:layout_gravity="center"
android:layout_margin="5dp"
app:srcCompat="@drawable/shopcart" />
app:srcCompat="@drawable/bookshelf1" />
<ImageView
android:id="@+id/imageView7"