fix: crash on notification events

app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/MyScriptListFragment.java

@@ -125,7 +125,8 @@ public class MyScriptListFragment extends ViewPagerFragment implements BackPress
     @Override
     public void onDetach() {
         super.onDetach();
-        mFloatingActionMenu.setOnFloatingActionButtonClickListener(null);
+        if (mFloatingActionMenu != null)
+            mFloatingActionMenu.setOnFloatingActionButtonClickListener(null);
     }
 
     @Override

app/src/main/java/com/stardust/scriptdroid/ui/main/scripts/ScriptListView.java

@@ -11,6 +11,7 @@ import android.view.LayoutInflater;
 import android.view.MenuItem;
 import android.view.View;
 import android.view.ViewGroup;
+import android.widget.ImageView;
 import android.widget.PopupMenu;
 import android.widget.TextView;
 
@@ -316,6 +317,9 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
         @BindView(R.id.title)
         TextView mTitle;
 
+        @BindView(R.id.sort)
+        ImageView mSort;
+
         CategoryViewHolder(View itemView) {
             super(itemView);
             ButterKnife.bind(this, itemView);
@@ -326,5 +330,17 @@ public class ScriptListView extends SwipeRefreshLayout implements SwipeRefreshLa
             mTitle.setText(isDirCategory ? R.string.text_directory : R.string.text_file);
         }
 
+        @OnClick(R.id.order)
+        void changeSortOrder() {
+
+        }
+
+        @OnClick(R.id.sort)
+        void showSortOptions() {
+            PopupMenu popupMenu = new PopupMenu(getContext(), mSort);
+            popupMenu.inflate(R.menu.menu_sort_options);
+            popupMenu.setOnMenuItemClickListener(ScriptListView.this);
+            popupMenu.show();
+        }
     }
 }

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

@@ -35,6 +35,7 @@
 
 
     <ImageView
+        android:id="@+id/order"
         android:layout_width="32dp"
         android:layout_height="match_parent"
         android:layout_gravity="center_vertical"
@@ -45,6 +46,7 @@
         android:tint="#828384"/>
 
     <ImageView
+        android:id="@+id/sort"
         android:layout_width="32dp"
         android:layout_height="match_parent"
         android:layout_gravity="center_vertical"

app/src/main/res/menu/menu_sort_options.xml

@@ -0,0 +1,19 @@
+<?xml version="1.0" encoding="utf-8"?>
+<menu xmlns:android="http://schemas.android.com/apk/res/android">
+
+    <item
+        android:checkable="true"
+        android:title="@string/text_name"/>
+    <item
+        android:checkable="true"
+        android:title="@string/text_time"
+        />
+    <item
+        android:checkable="true"
+        android:title="@string/text_size"
+        />
+    <item
+        android:checkable="true"
+        android:title="@string/text_type"
+        />
+</menu>

app/src/main/res/values/strings.xml

@@ -249,6 +249,9 @@
     <string name="text_forgot_password">忘记密码</string>
     <string name="text_username_cannot_be_empty">用户名不能为空</string>
     <string name="text_password_cannot_be_empty">密码不能为空</string>
+    <string name="text_time">时间</string>
+    <string name="text_size">大小</string>
+    <string name="text_type">类型</string>
 
 
     <string-array name="record_control_keys">