|
|
|
@ -1,21 +1,19 @@
|
|
|
|
|
/*
|
|
|
|
|
* Copyright (c) 2010-2011, The MiCode Open Source Community (www.micode.net)
|
|
|
|
|
* 版权所有 (c) 2010-2011, MiCode 开源社区 (www.micode.net)
|
|
|
|
|
*
|
|
|
|
|
* 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
|
|
|
|
|
* 本文件授权使用 Apache License, Version 2.0(以下简称“许可证”);
|
|
|
|
|
* 除非符合许可证规定,否则不得使用此文件。
|
|
|
|
|
* 您可以从以下网址获取许可证副本:
|
|
|
|
|
*
|
|
|
|
|
* 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.
|
|
|
|
|
* 除非适用法律要求或书面同意,否则根据许可证分发的软件
|
|
|
|
|
* 均按“原样”分发,不附带任何明示或暗示的保证或条件。
|
|
|
|
|
* 有关许可权限和限制的具体语言,请参阅许可证。
|
|
|
|
|
*/
|
|
|
|
|
|
|
|
|
|
package net.micode.notes.ui;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
import android.content.Context;
|
|
|
|
|
import android.view.Menu;
|
|
|
|
|
import android.view.MenuItem;
|
|
|
|
@ -24,42 +22,62 @@ import android.view.View.OnClickListener;
|
|
|
|
|
import android.widget.Button;
|
|
|
|
|
import android.widget.PopupMenu;
|
|
|
|
|
import android.widget.PopupMenu.OnMenuItemClickListener;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
import net.micode.notes.R;
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* DropdownMenu 类用于创建一个下拉菜单。
|
|
|
|
|
* 它提供了一个按钮,点击按钮时显示一个弹出菜单。
|
|
|
|
|
*/
|
|
|
|
|
public class DropdownMenu {
|
|
|
|
|
private Button mButton;
|
|
|
|
|
private PopupMenu mPopupMenu;
|
|
|
|
|
//声明一个下拉菜单
|
|
|
|
|
private Menu mMenu;
|
|
|
|
|
|
|
|
|
|
private Button mButton; // 按钮控件
|
|
|
|
|
private PopupMenu mPopupMenu; // 弹出菜单
|
|
|
|
|
private Menu mMenu; // 菜单对象
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 构造函数,初始化 DropdownMenu。
|
|
|
|
|
* @param context 应用上下文。
|
|
|
|
|
* @param button 按钮控件。
|
|
|
|
|
* @param menuId 菜单资源 ID。
|
|
|
|
|
*/
|
|
|
|
|
public DropdownMenu(Context context, Button button, int menuId) {
|
|
|
|
|
mButton = button;
|
|
|
|
|
mButton.setBackgroundResource(R.drawable.dropdown_icon);
|
|
|
|
|
//设置这个view的背景
|
|
|
|
|
mButton.setBackgroundResource(R.drawable.dropdown_icon); // 设置按钮背景
|
|
|
|
|
mPopupMenu = new PopupMenu(context, mButton);
|
|
|
|
|
mMenu = mPopupMenu.getMenu();
|
|
|
|
|
mPopupMenu.getMenuInflater().inflate(menuId, mMenu);
|
|
|
|
|
//MenuInflater是用来实例化Menu目录下的Menu布局文件
|
|
|
|
|
//根据ID来确认menu的内容选项
|
|
|
|
|
mPopupMenu.getMenuInflater().inflate(menuId, mMenu); // 加载菜单资源
|
|
|
|
|
mButton.setOnClickListener(new OnClickListener() {
|
|
|
|
|
@Override
|
|
|
|
|
public void onClick(View v) {
|
|
|
|
|
mPopupMenu.show();
|
|
|
|
|
mPopupMenu.show(); // 显示弹出菜单
|
|
|
|
|
}
|
|
|
|
|
});
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置菜单项点击监听器。
|
|
|
|
|
* @param listener 菜单项点击监听器。
|
|
|
|
|
*/
|
|
|
|
|
public void setOnDropdownMenuItemClickListener(OnMenuItemClickListener listener) {
|
|
|
|
|
if (mPopupMenu != null) {
|
|
|
|
|
mPopupMenu.setOnMenuItemClickListener(listener);
|
|
|
|
|
}//设置菜单的监听
|
|
|
|
|
mPopupMenu.setOnMenuItemClickListener(listener); // 设置菜单项点击监听器
|
|
|
|
|
}
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 查找菜单项。
|
|
|
|
|
* @param id 菜单项 ID。
|
|
|
|
|
* @return 菜单项。
|
|
|
|
|
*/
|
|
|
|
|
public MenuItem findItem(int id) {
|
|
|
|
|
return mMenu.findItem(id);
|
|
|
|
|
}//对于菜单选项的初始化,根据索引搜索菜单需要的选项
|
|
|
|
|
|
|
|
|
|
return mMenu.findItem(id); // 查找菜单项
|
|
|
|
|
}
|
|
|
|
|
|
|
|
|
|
/**
|
|
|
|
|
* 设置按钮标题。
|
|
|
|
|
* @param title 标题文本。
|
|
|
|
|
*/
|
|
|
|
|
public void setTitle(CharSequence title) {
|
|
|
|
|
mButton.setText(title);
|
|
|
|
|
}//布局文件,设置标题
|
|
|
|
|
mButton.setText(title); // 设置按钮标题
|
|
|
|
|
}
|
|
|
|
|
}
|