diff --git a/lib_base/src/main/java/com/android/base/adapter/recycler/MultiTypeAdapter.java b/lib_base/src/main/java/com/android/base/adapter/recycler/MultiTypeAdapter.java
index d29f4d7..7571c1a 100644
--- a/lib_base/src/main/java/com/android/base/adapter/recycler/MultiTypeAdapter.java
+++ b/lib_base/src/main/java/com/android/base/adapter/recycler/MultiTypeAdapter.java
@@ -15,7 +15,7 @@ import me.drakeet.multitype.TypePool;
  */
 public class MultiTypeAdapter extends me.drakeet.multitype.MultiTypeAdapter implements DataManager<Object> {
 
-    protected final Context mContext;
+    private final Context mContext;
 
     private RecyclerDataManagerImpl<Object> mRecyclerDataManager;
 
@@ -163,4 +163,8 @@ public class MultiTypeAdapter extends me.drakeet.multitype.MultiTypeAdapter impl
         mRecyclerDataManager.setDataSource(objects, true);
     }
 
+    public Context getContext() {
+        return mContext;
+    }
+
 }
\ No newline at end of file
diff --git a/lib_base/src/main/java/com/android/base/kotlin/MenuEx.kt b/lib_base/src/main/java/com/android/base/kotlin/MenuEx.kt
index 6ce25af..2601519 100644
--- a/lib_base/src/main/java/com/android/base/kotlin/MenuEx.kt
+++ b/lib_base/src/main/java/com/android/base/kotlin/MenuEx.kt
@@ -31,7 +31,7 @@ fun MenuItem.alwaysShow(): MenuItem {
     return this
 }
 
-fun MenuItem.setSimpleClickListener(onClick: (MenuItem) -> Unit): MenuItem {
+fun MenuItem.onMenuItemClick(onClick: (MenuItem) -> Unit): MenuItem {
     setOnMenuItemClickListener {
         onClick(it)
         true
diff --git a/lib_base/src/main/java/com/android/base/kotlin/RecyclerViewEx.kt b/lib_base/src/main/java/com/android/base/kotlin/RecyclerViewEx.kt
deleted file mode 100644
index fcfcfb1..0000000
--- a/lib_base/src/main/java/com/android/base/kotlin/RecyclerViewEx.kt
+++ /dev/null
@@ -1,29 +0,0 @@
-package com.android.base.kotlin
-
-import android.support.v7.widget.GridLayoutManager
-import android.support.v7.widget.LinearLayoutManager
-import android.support.v7.widget.RecyclerView
-
-fun RecyclerView.verticalLinearLayoutManager(): LinearLayoutManager {
-    val linearLayoutManager = LinearLayoutManager(context)
-    layoutManager = linearLayoutManager
-    return linearLayoutManager
-}
-
-fun RecyclerView.horizontalLinearlLayoutManager(): LinearLayoutManager {
-    val linearLayoutManager = LinearLayoutManager(context, LinearLayoutManager.HORIZONTAL, false)
-    layoutManager = linearLayoutManager
-    return linearLayoutManager
-}
-
-fun RecyclerView.verticalLinearLayoutManager(span: Int): GridLayoutManager {
-    val gridLayoutManager = GridLayoutManager(context, span)
-    layoutManager = gridLayoutManager
-    return gridLayoutManager
-}
-
-fun RecyclerView.horizontalLinearlLayoutManager(span: Int): GridLayoutManager {
-    val gridLayoutManager = GridLayoutManager(context, span, GridLayoutManager.HORIZONTAL, false)
-    layoutManager = gridLayoutManager
-    return gridLayoutManager
-}
\ No newline at end of file