allprojects {
    repositories {
        maven {
            url 'https://s01.oss.sonatype.org/content/repositories/releases/'
        }
    }
}

dependencies {
    implementation('com.gitee.chinasoft_ohos:DropDownLayout:1.0.0')
    ......  
}

<?xml version="1.0" encoding="utf-8"?>
<org.net.sunger.widget.DropDownLayout
   xmlns:ohos="http://schemas.huawei.com/res/ohos"
   ohos:height="match_parent"
   ohos:width="match_parent">

   <ListContainer
       ohos:id="$+id:recyclerView"
       ohos:height="match_parent"
       ohos:width="match_parent"/>

   <org.net.sunger.widget.MaskComponent
       ohos:height="match_parent"
       ohos:width="match_parent"
       ohos:background_element="#88838685"
       ohos:visibility="hide"/>

   <org.net.sunger.widget.MenuLayout
       ohos:id="$+id:menuLayout"
       ohos:height="match_content"
       ohos:width="match_parent"
       ohos:background_element="#fff"
       ohos:visibility="hide"/>
</org.net.sunger.widget.DropDownLayout>
   

MenuLayout menuLayout = (MenuLayout) findComponentById(ResourceTable.Id_menuLayout);
DropDownLayout dropDownLayout = (DropDownLayout) findComponentById(ResourceTable.Id_dropdown);
CommonTabList layout = (CommonTabList) findComponentById(ResourceTable.Id_my);
layouts = new ArrayList<>();
DirectionalLayout layout1 = (DirectionalLayout) LayoutScatter.getInstance(getContext()).parse(ResourceTable.Layout_list_layout, null, false);
DirectionalLayout layout2 = (DirectionalLayout) LayoutScatter.getInstance(getContext()).parse(ResourceTable.Layout_list_layout, null, false);
DirectionalLayout layout3 = (DirectionalLayout) LayoutScatter.getInstance(getContext()).parse(ResourceTable.Layout_list_layout, null, false);
layouts.add(layout1);
layouts.add(layout2);
layouts.add(layout3);
menuLayout.bindLayouts(layouts);
layout.setSelectListener(new OnTabSelectListener() {
   @Override
   public void onTabSelect(int position) {
       dropDownLayout.showMenuAt(position);
       index = position;
   }
   @Override
   public void onTabReselect(int position) {
       if (menuLayout.isShow()) {
          dropDownLayout.closeMenu();
       } else {
          dropDownLayout.showMenuAt(position);
       }
   }
});
// dropDownLayout.closeMenu();       

Copyright 2016 sungerk

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

   http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.