up

app/src/main/java/io/legado/app/ui/bookinfo/BookInfoActivity.kt

@@ -24,7 +24,9 @@ import kotlinx.android.synthetic.main.view_title_bar.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 import org.jetbrains.anko.startActivity
 
-class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_book_info), ChangeSourceDialog.CallBack {
+class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_book_info),
+    ChapterListAdapter.CallBack,
+    ChangeSourceDialog.CallBack {
     override val viewModel: BookInfoViewModel
         get() = getViewModel(BookInfoViewModel::class.java)
 
@@ -134,7 +136,7 @@ class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_boo
     }
 
     private fun initRecyclerView() {
-        adapter = ChapterListAdapter(this)
+        adapter = ChapterListAdapter(this, this)
         ATH.applyEdgeEffectColor(rv_chapter_list)
         rv_chapter_list.layoutManager = LinearLayoutManager(this)
         rv_chapter_list.addItemDecoration(DividerItemDecoration(this, LinearLayout.VERTICAL))
@@ -178,4 +180,8 @@ class BookInfoActivity : VMBaseActivity<BookInfoViewModel>(R.layout.activity_boo
     override fun changeTo(book: Book) {
 
     }
+
+    override fun skipToChapter(index: Int) {
+
+    }
 }

app/src/main/java/io/legado/app/ui/bookinfo/ChapterListAdapter.kt

@@ -8,14 +8,14 @@ import io.legado.app.data.entities.BookChapter
 import kotlinx.android.synthetic.main.item_chapter_list.view.*
 import org.jetbrains.anko.sdk27.listeners.onClick
 
-class ChapterListAdapter(context: Context) : SimpleRecyclerAdapter<BookChapter>(context, R.layout.item_chapter_list) {
-    var callBack: CallBack? = null
+class ChapterListAdapter(context: Context, var callBack: CallBack) :
+    SimpleRecyclerAdapter<BookChapter>(context, R.layout.item_chapter_list) {
 
     override fun convert(holder: ItemViewHolder, item: BookChapter, payloads: MutableList<Any>) {
         holder.itemView.apply {
             tv_chapter_name.text = item.title
             this.onClick {
-                callBack?.skipToChapter(item.index)
+                callBack.skipToChapter(item.index)
             }
         }
     }