up

app/src/main/java/io/legado/app/ui/main/findbook/FindBookAdapter.kt

@@ -20,7 +20,7 @@ import kotlinx.coroutines.CoroutineScope
 import org.jetbrains.anko.sdk27.listeners.onClick
 
 
-class FindBookAdapter(private val scope: CoroutineScope) :
+class FindBookAdapter(private val scope: CoroutineScope, val callBack: CallBack) :
     PagedListAdapter<BookSource, FindBookAdapter.MyViewHolder>(DIFF_CALLBACK) {
 
     var exIndex = 0
@@ -58,6 +58,7 @@ class FindBookAdapter(private val scope: CoroutineScope) :
                         notifyItemChanged(position)
                     }
                     notifyItemChanged(oldEx)
+                    callBack.scrollTo(position)
                 }
                 if (exIndex == position) {
                     rotate_loading.show()
@@ -65,7 +66,6 @@ class FindBookAdapter(private val scope: CoroutineScope) :
                         bookSource.getExploreRule().getExploreKinds(bookSource.bookSourceUrl)
                     }.onSuccess {
                         it?.let {
-                            rotate_loading.hide()
                             gl_child.visible()
                             var rowNum = 0
                             var columnNum = 0
@@ -89,12 +89,20 @@ class FindBookAdapter(private val scope: CoroutineScope) :
                                 }
                             }
                         }
+                    }.onFinally {
+                        rotate_loading.hide()
                     }
                 } else {
+                    rotate_loading.hide()
                     gl_child.gone()
                 }
         }
     }
 
     class MyViewHolder(view: View) : RecyclerView.ViewHolder(view)
+
+    interface CallBack {
+
+        fun scrollTo(pos: Int)
+    }
 }

app/src/main/java/io/legado/app/ui/main/findbook/FindBookFragment.kt

@@ -16,10 +16,11 @@ import io.legado.app.lib.theme.ATH
 import kotlinx.android.synthetic.main.fragment_find_book.*
 import kotlinx.android.synthetic.main.view_title_bar.*
 
-class FindBookFragment : BaseFragment(R.layout.fragment_find_book) {
+class FindBookFragment : BaseFragment(R.layout.fragment_find_book),
+    FindBookAdapter.CallBack {
 
     private lateinit var adapter: FindBookAdapter
-    private var findLiveData:LiveData<PagedList<BookSource>>? = null
+    private var findLiveData: LiveData<PagedList<BookSource>>? = null
 
     override fun onViewCreated(view: View, savedInstanceState: Bundle?) {
         setSupportToolbar(toolbar)
@@ -34,7 +35,7 @@ class FindBookFragment : BaseFragment(R.layout.fragment_find_book) {
     private fun initRecyclerView() {
         ATH.applyEdgeEffectColor(rv_find)
         rv_find.layoutManager = LinearLayoutManager(context)
-        adapter = FindBookAdapter(this)
+        adapter = FindBookAdapter(this, this)
         rv_find.adapter = adapter
     }
 
@@ -43,4 +44,8 @@ class FindBookFragment : BaseFragment(R.layout.fragment_find_book) {
         findLiveData = LivePagedListBuilder(App.db.bookSourceDao().observeFind(), 2000).build()
         findLiveData?.observe(viewLifecycleOwner, Observer { adapter.submitList(it) })
     }
+
+    override fun scrollTo(pos: Int) {
+        rv_find.scrollToPosition(pos)
+    }
 }

app/src/main/res/layout/item_find_book.xml

@@ -6,6 +6,7 @@
     android:layout_height="wrap_content"
     android:paddingLeft="10dp"
     android:paddingRight="10dp"
+    android:gravity="center"
     android:orientation="vertical">
 
     <LinearLayout
@@ -51,6 +52,7 @@
         android:id="@+id/rotate_loading"
         android:layout_width="36dp"
         android:layout_height="36dp"
-        android:visibility="gone" />
+        android:visibility="gone"
+        app:loading_width="2dp" />
 
 </LinearLayout>