feat: 优化代码

app/src/main/java/io/legado/app/data/entities/Book.kt

@@ -86,6 +86,8 @@ data class Book(
     @IgnoredOnParcel
     override var tocHtml: String? = null
 
+    fun getRealAuthor() = author.replace("作者：", "")
+
     fun getUnreadChapterNum() = max(totalChapterNum - durChapterIndex - 1, 0)
 
     fun getDisplayCover() = if (customCoverUrl.isNullOrEmpty()) coverUrl else customCoverUrl

app/src/main/java/io/legado/app/data/entities/BookChapter.kt

@@ -33,7 +33,7 @@ data class BookChapter(
     var tag: String? = null,            //
     var start: Long? = null,            // 章节起始位置
     var end: Long? = null,               // 章节终止位置
-    var variable: String? = null
+    var variable: String? = null        //变量
 ) : Parcelable {
 
     @Ignore

app/src/main/java/io/legado/app/help/BookHelp.kt

@@ -51,17 +51,6 @@ object BookHelp {
         if (content.isEmpty()) return
         if (downloadPath.isContentPath()) {
             DocumentFile.fromTreeUri(App.INSTANCE, downloadUri)?.let { root ->
-                DocumentUtils.getDirDocument(
-                    root,
-                    subDirs = *arrayOf(cacheFolderName, bookFolderName(book))
-                )?.uri?.let { uri ->
-                    DocumentUtils.listFiles(App.INSTANCE, uri).forEach {
-                        if (it.name.startsWith(String.format("%05d", bookChapter.index))) {
-                            DocumentFile.fromSingleUri(App.INSTANCE, it.uri)?.delete()
-                            return@forEach
-                        }
-                    }
-                }
                 DocumentUtils.createFileIfNotExist(
                     root,
                     "${bookChapterName(bookChapter)}.nb",
@@ -69,15 +58,6 @@ object BookHelp {
                 )?.uri?.writeText(App.INSTANCE, content)
             }
         } else {
-            FileUtils.createFolderIfNotExist(
-                File(downloadPath),
-                subDirs = *arrayOf(cacheFolderName, bookFolderName(book))
-            ).listFiles()?.forEach {
-                if (it.name.startsWith(String.format("%05d", bookChapter.index))) {
-                    it.delete()
-                    return@forEach
-                }
-            }
             FileUtils.createFileIfNotExist(
                 File(downloadPath),
                 "${bookChapterName(bookChapter)}.nb",
@@ -86,21 +66,28 @@ object BookHelp {
         }
     }
 
-    fun getChapterCount(book: Book): Int {
+    fun getChapterFiles(book: Book): List<String> {
+        val fileNameList = arrayListOf<String>()
         if (downloadPath.isContentPath()) {
             DocumentFile.fromTreeUri(App.INSTANCE, downloadUri)?.let { root ->
-                return DocumentUtils.createFolderIfNotExist(
+                DocumentUtils.createFolderIfNotExist(
                     root,
                     subDirs = *arrayOf(cacheFolderName, bookFolderName(book))
-                )?.listFiles()?.size ?: 0
+                )?.let { bookDoc ->
+                    DocumentUtils.listFiles(App.INSTANCE, bookDoc.uri).forEach {
+                        fileNameList.add(it.name)
+                    }
+                }
             }
         } else {
-            return FileUtils.createFolderIfNotExist(
+            FileUtils.createFolderIfNotExist(
                 File(downloadPath),
                 subDirs = *arrayOf(cacheFolderName, bookFolderName(book))
-            ).list()?.size ?: 0
+            ).list()?.let {
+                fileNameList.addAll(it)
+            }
         }
-        return 0
+        return fileNameList
     }
 
     fun hasContent(book: Book, bookChapter: BookChapter): Boolean {

app/src/main/java/io/legado/app/ui/download/DownloadAdapter.kt

@@ -1,12 +1,10 @@
 package io.legado.app.ui.download
 
 import android.content.Context
-import android.view.View
 import io.legado.app.R
 import io.legado.app.base.adapter.ItemViewHolder
 import io.legado.app.base.adapter.SimpleRecyclerAdapter
 import io.legado.app.data.entities.Book
-import io.legado.app.help.BookHelp
 import kotlinx.android.synthetic.main.item_download.view.*
 
 
@@ -17,20 +15,14 @@ class DownloadAdapter(context: Context) :
         with(holder.itemView) {
             if (payloads.isEmpty()) {
                 tv_name.text = item.name
-                tv_author.text = item.author
-                upDownloadCount(this, item)
+                tv_author.text = context.getString(R.string.author_show, item.getRealAuthor())
+                tv_download.setText(R.string.loading)
             } else {
-                upDownloadCount(this, item)
+                val count = payloads[0] as Int
+                tv_download.text =
+                    context.getString(R.string.download_count, count, item.totalChapterNum)
             }
         }
     }
 
-    private fun upDownloadCount(view: View, book: Book) {
-        view.tv_download.text = context.getString(
-            R.string.download_count,
-            BookHelp.getChapterCount(book),
-            book.totalChapterNum
-        )
-    }
-
 }

app/src/main/java/io/legado/app/ui/widget/DetailSeekBar.kt

@@ -29,21 +29,27 @@ class DetailSeekBar(context: Context, attrs: AttributeSet?) : LinearLayoutCompat
 
         iv_seek_add.onClick {
             seek_bar.progressAdd(1)
+            upValue()
             onChanged?.invoke(seek_bar.progress)
         }
         iv_seek_remove.onClick {
             seek_bar.progressAdd(-1)
+            upValue()
             onChanged?.invoke(seek_bar.progress)
         }
         seek_bar.setOnSeekBarChangeListener(this)
     }
 
-    private fun upValue() {
-
+    private fun upValue(progress: Int = seek_bar.progress) {
+        valueFormat?.let {
+            tv_seek_value.text = String.format(it, progress)
+        } ?: let {
+            tv_seek_value.text = progress.toString()
+        }
     }
 
     override fun onProgressChanged(seekBar: SeekBar?, progress: Int, fromUser: Boolean) {
-
+        upValue(progress)
     }
 
     override fun onStartTrackingTouch(seekBar: SeekBar?) {
@@ -51,6 +57,7 @@ class DetailSeekBar(context: Context, attrs: AttributeSet?) : LinearLayoutCompat
     }
 
     override fun onStopTrackingTouch(seekBar: SeekBar?) {
+        upValue()
         onChanged?.invoke(seek_bar.progress)
     }