优化

app/src/main/java/io/legado/app/base/adapter/CommonRecyclerAdapter.kt

@@ -15,17 +15,17 @@ import java.util.*
  *
  * 通用的adapter 可添加header，footer，以及不同类型item
  */
-abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context):
+abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context) :
     RecyclerView.Adapter<ItemViewHolder>() {
 
-    constructor(context: Context, vararg delegates: ItemViewDelegate<ITEM>): this(context) {
+    constructor(context: Context, vararg delegates: ItemViewDelegate<ITEM>) : this(context) {
         addItemViewDelegates(*delegates)
     }
 
     constructor(
         context: Context,
         vararg delegates: Pair<Int, ItemViewDelegate<ITEM>>
-    ): this(context) {
+    ) : this(context) {
         addItemViewDelegates(*delegates)
     }
 
@@ -57,15 +57,15 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context):
         recyclerView.adapter = this
     }
 
-    fun <DELEGATE: ItemViewDelegate<ITEM>> addItemViewDelegate(viewType: Int, delegate: DELEGATE) {
+    fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegate(viewType: Int, delegate: DELEGATE) {
         itemDelegates[viewType] = delegate
     }
 
-    fun <DELEGATE: ItemViewDelegate<ITEM>> addItemViewDelegate(delegate: DELEGATE) {
+    fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegate(delegate: DELEGATE) {
         itemDelegates[itemDelegates.size] = delegate
     }
 
-    fun <DELEGATE: ItemViewDelegate<ITEM>> addItemViewDelegates(vararg delegates: DELEGATE) {
+    fun <DELEGATE : ItemViewDelegate<ITEM>> addItemViewDelegates(vararg delegates: DELEGATE) {
         delegates.forEach {
             addItemViewDelegate(it)
         }
@@ -365,7 +365,7 @@ abstract class CommonRecyclerAdapter<ITEM>(protected val context: Context):
         super.onAttachedToRecyclerView(recyclerView)
         val manager = recyclerView.layoutManager
         if (manager is GridLayoutManager) {
-            manager.spanSizeLookup = object: GridLayoutManager.SpanSizeLookup() {
+            manager.spanSizeLookup = object : GridLayoutManager.SpanSizeLookup() {
                 override fun getSpanSize(position: Int): Int {
                     return getItem(position)?.let {
                         if (isHeader(position) || isFooter(position)) manager.spanCount else getSpanSize(