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/*
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* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package net.micode.notes.ui;
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import android.content.Context;
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import android.view.Menu;
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import android.view.MenuItem;
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import android.view.View;
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import android.view.View.OnClickListener;
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import android.widget.Button;
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import android.widget.PopupMenu;
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import android.widget.PopupMenu.OnMenuItemClickListener;
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import net.micode.notes.R;
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/**
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* @projectName（项目名称）: xiaomi label
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* @package（包）: ui
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* @className（类名称）: DropdownMenu
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* @description（类描述）: 声明一个下拉菜单
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* @author（创建人）: zhangchaoqun
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* @createDate（创建时间）: datetime
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* @updateUser（修改人）: user
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* @updateDate（修改时间）: datetime
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* @updateRemark（修改备注）: 说明本次修改内容
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* @version（版本）: v1.0
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*/
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public class DropdownMenu {
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private Button mButton;
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//声明一个下拉菜单
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private PopupMenu mPopupMenu;
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private Menu mMenu;
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/**
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* @description 描述:将菜单私有变量实例化
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* @param 参数1:context（上下文）
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* @param 参数2:button（按钮）
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* @param 参数3:menuId（菜单id）
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* @return 返回值:创建一个DropdownMenu实例对象
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* @author zhangchaoqun
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*/
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public DropdownMenu(Context context, Button button, int menuId) {
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mButton = button;
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//设置这个view的背景
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mButton.setBackgroundResource(R.drawable.dropdown_icon);
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mPopupMenu = new PopupMenu(context, mButton);
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mMenu = mPopupMenu.getMenu();
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//MenuInflater是用来实例化Menu目录下的Menu布局文件
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//根据ID来确认menu的内容选项
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mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
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mButton.setOnClickListener(new OnClickListener() {
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public void onClick(View v) {
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mPopupMenu.show();
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}
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});
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}
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/**
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* @description 描述:对非空的菜单的具体条目设置监听
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* @param 参数1:listener
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* @param 参数2:
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* @param 参数3:
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* @return 返回值:void
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* @author zhangchaoqun
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*/
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public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
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if (mPopupMenu != null) {
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mPopupMenu.setOnMenuItemClickListener(listener);
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}
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}
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//对于菜单选项的初始化，根据索引搜索菜单需要的选项
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public MenuItem findItem(int id) {
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return mMenu.findItem(id);
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}
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/**
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* @description 描述:设置按钮的标题文本信息
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* @param 参数1:title（接口CharSequence的实例对象），其实就是描述了一个string对象
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* @param 参数2:
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* @param 参数3:
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* @return 返回值:
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* @author zhangchaoqun
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*/
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public void setTitle(CharSequence title) {
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mButton.setText(title);
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}
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}
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