一般使用过UCWEB-Android版的人都应该对其特殊的menu有一定的印象，把menu做成Tab-Menu(支持分页的Menu)，可以容纳比Android传统的menu更丰富的内容(Android的menu超过6项则缩略在[更多]里)，本文参考网上的例子的基础上对例子进行简化以及封装，使其作为一个复合控件融入自己的framework。

先来看看本文程序运行的效果如下图所示：

TabMenu本身就是一个PopupWindow，PopupWindow上面放了两个GridView,第一个GridView就是分页标签，位于PopupWindow的顶部，第二个GridView是菜单，位于PopupWindow的主体。为了实现PopupWindow的弹出/退出的动画效果，本文使用了以下代码：

在工程的res文件夹里添加anim子目录，再新建文件popup_enter.xml：

新建文件popup_exit.xml：

在工程的values文件夹里新建文件popup_animation.xml：

@anim/popup_enter

@anim/popup_exit

main.xml的源码如下：

android:layout_width="fill_parent" android:layout_height="fill_parent"

xmlns:android="http://schemas.android.com/apk/res/android">

android:layout_width="fill_parent" android:text="扩展Menu----hellogv">

TabMenu的封装类TabMenu.java的源码如下：

package com.testTabMenu;

import android.content.Context;

import android.graphics.Color;

import android.graphics.drawable.ColorDrawable;

import android.view.Gravity;

import android.view.View;

import android.view.ViewGroup;

import android.widget.BaseAdapter;

import android.widget.GridView;

import android.widget.ImageView;

import android.widget.LinearLayout;

import android.widget.PopupWindow;

import android.widget.TextView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.LinearLayout.LayoutParams;

public class TabMenu extends PopupWindow{

private GridView gvBody, gvTitle;

private LinearLayout mLayout;

private MenuTitleAdapter titleAdapter;

public TabMenu(Context context,OnItemClickListener titleClick,OnItemClickListener bodyClick,

MenuTitleAdapter titleAdapter,int colorBgTabMenu,int aniTabMenu){

super(context);

mLayout = new LinearLayout(context);

mLayout.setOrientation(LinearLayout.VERTICAL);

//标题选项栏

gvTitle = new GridView(context);

gvTitle.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

gvTitle.setNumColumns(titleAdapter.getCount());

gvTitle.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);

gvTitle.setVerticalSpacing(1);

gvTitle.setHorizontalSpacing(1);

gvTitle.setGravity(Gravity.CENTER);

gvTitle.setOnItemClickListener(titleClick);

gvTitle.setAdapter(titleAdapter);

gvTitle.setSelector(new ColorDrawable(Color.TRANSPARENT));//选中的时候为透明色

this.titleAdapter=titleAdapter;

//子选项栏

gvBody = new GridView(context);

gvBody.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));

gvBody.setSelector(new ColorDrawable(Color.TRANSPARENT));//选中的时候为透明色

gvBody.setNumColumns(4);

gvBody.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);

gvBody.setVerticalSpacing(10);

gvBody.setHorizontalSpacing(10);

gvBody.setPadding(10, 10, 10, 10);

gvBody.setGravity(Gravity.CENTER);

gvBody.setOnItemClickListener(bodyClick);

mLayout.addView(gvTitle);

mLayout.addView(gvBody);

//设置默认项

this.setContentView(mLayout);

this.setWidth(LayoutParams.FILL_PARENT);

this.setHeight(LayoutParams.WRAP_CONTENT);

this.setBackgroundDrawable(new ColorDrawable(colorBgTabMenu));// 设置TabMenu菜单背景

this.setAnimationStyle(aniTabMenu);

this.setFocusable(true);// menu菜单获得焦点 如果没有获得焦点menu菜单中的控件事件无法响应

}

public void SetTitleSelect(int index)

{

gvTitle.setSelection(index);

this.titleAdapter.SetFocus(index);

}

public void SetBodySelect(int index,int colorSelBody)

{

int count=gvBody.getChildCount();

for(int i=0;i

{

if(i!=index)

((LinearLayout)gvBody.getChildAt(i)).setBackgroundColor(Color.TRANSPARENT);

}

((LinearLayout)gvBody.getChildAt(index)).setBackgroundColor(colorSelBody);

}

public void SetBodyAdapter(MenuBodyAdapter bodyAdapter)

{

gvBody.setAdapter(bodyAdapter);

}

/**

* 自定义Adapter，TabMenu的每个分页的主体

*

*/

static public class MenuBodyAdapter extends BaseAdapter {

private Context mContext;

private int fontColor,fontSize;

private String[] texts;

private int[] resID;

/**

* 设置TabMenu的分页主体

* @param context 调用方的上下文

* @param texts 按钮集合的字符串数组

* @param resID 按钮集合的图标资源数组

* @param fontSize 按钮字体大小

* @param color 按钮字体颜色

*/

public MenuBodyAdapter(Context context, String[] texts,int[] resID, int fontSize,int fontColor)

{

this.mContext = context;

this.fontColor = fontColor;

this.texts = texts;

this.fontSize=fontSize;

this.resID=resID;

}

public int getCount() {

return texts.length;

}

public Object getItem(int position) {

return makeMenyBody(position);

}

public long getItemId(int position) {

return position;

}

private LinearLayout makeMenyBody(int position)

{

LinearLayout result=new LinearLayout(this.mContext);

result.setOrientation(LinearLayout.VERTICAL);

result.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL);

result.setPadding(10, 10, 10, 10);

TextView text = new TextView(this.mContext);

text.setText(texts[position]);

text.setTextSize(fontSize);

text.setTextColor(fontColor);

text.setGravity(Gravity.CENTER);

text.setPadding(5, 5, 5, 5);

ImageView img=new ImageView(this.mContext);

img.setBackgroundResource(resID[position]);

result.addView(img,new LinearLayout.LayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)));

result.addView(text);

return result;

}

public View getView(int position, View convertView, ViewGroup parent) {

return makeMenyBody(position);

}

}

/**

* 自定义Adapter,TabMenu的分页标签部分

*

*/

static public class MenuTitleAdapter extends BaseAdapter {

private Context mContext;

private int fontColor,unselcolor,selcolor;

private TextView[] title;

/**

* 设置TabMenu的title

* @param context 调用方的上下文

* @param titles 分页标签的字符串数组

* @param fontSize 字体大小

* @param fontcolor 字体颜色

* @param unselcolor 未选中项的背景色

* @param selcolor 选中项的背景色

*/

public MenuTitleAdapter(Context context, String[] titles, int fontSize,

int fontcolor,int unselcolor,int selcolor) {

this.mContext = context;

this.fontColor = fontcolor;

this.unselcolor = unselcolor;

this.selcolor=selcolor;

this.title = new TextView[titles.length];

for (int i = 0; i < titles.length; i++) {

title[i] = new TextView(mContext);

title[i].setText(titles[i]);

title[i].setTextSize(fontSize);

title[i].setTextColor(fontColor);

title[i].setGravity(Gravity.CENTER);

title[i].setPadding(10, 10, 10, 10);

}

}

public int getCount() {

return title.length;

}

public Object getItem(int position) {

return title[position];

}

public long getItemId(int position) {

return title[position].getId();

}

/**

* 设置选中的效果

*/

private void SetFocus(int index)

{

for(int i=0;i

{

if(i!=index)

{

title[i].setBackgroundDrawable(new ColorDrawable(unselcolor));//设置没选中的颜色

title[i].setTextColor(fontColor);//设置没选中项的字体颜色

}

}

title[index].setBackgroundColor(0x00);//设置选中项的颜色

title[index].setTextColor(selcolor);//设置选中项的字体颜色

}

public View getView(int position, View convertView, ViewGroup parent) {

View v;

if (convertView == null) {

v = title[position];

} else {

v = convertView;

}

return v;

}

}

}

testTabMenu介绍了数据的定义以及TabMenu的使用，源码如下：

package com.testTabMenu;

import android.app.Activity;

import android.graphics.Color;

import android.os.Bundle;

import android.view.Gravity;

import android.view.Menu;

import android.view.View;

import android.widget.AdapterView;

import android.widget.AdapterView.OnItemClickListener;

import android.widget.Toast;

public class testTabMenu extends Activity {

TabMenu.MenuBodyAdapter []bodyAdapter=new TabMenu.MenuBodyAdapter[3];

TabMenu.MenuTitleAdapter titleAdapter;

TabMenu tabMenu;

int selTitle=0;

@Override

public void onCreate(Bundle savedInstanceState) {

super.onCreate(savedInstanceState);

setContentView(R.layout.main);

//设置分页栏的标题

titleAdapter = new TabMenu.MenuTitleAdapter(this, new String[] { "常用",

"设置", "工具" }, 16, 0xFF222222,Color.LTGRAY,Color.WHITE);

//定义每项分页栏的内容

bodyAdapter[0]=new TabMenu.MenuBodyAdapter(this,new String[] { "常用1", "常用2", },

new int[] { R.drawable.menu_test,

R.drawable.menu_bookmark},13, 0xFFFFFFFF);

bodyAdapter[1]=new TabMenu.MenuBodyAdapter(this,new String[] { "设置1", "设置2",

"设置3"}, new int[] { R.drawable.menu_edit,

R.drawable.menu_delete, R.drawable.menu_fullscreen},13, 0xFFFFFFFF);

bodyAdapter[2]=new TabMenu.MenuBodyAdapter(this,new String[] { "工具1", "工具2",

"工具3", "工具4" }, new int[] { R.drawable.menu_copy,

R.drawable.menu_cut, R.drawable.menu_normalmode,

R.drawable.menu_quit },13, 0xFFFFFFFF);

tabMenu=new TabMenu(this,

new TitleClickEvent(),

new BodyClickEvent(),

titleAdapter,

0x55123456,//TabMenu的背景颜色

R.style.PopupAnimation);//出现与消失的动画

tabMenu.update();

tabMenu.SetTitleSelect(0);

tabMenu.SetBodyAdapter(bodyAdapter[0]);

}

class TitleClickEvent implements OnItemClickListener{

@Override

public void onItemClick(AdapterView> arg0, View arg1, int arg2,

long arg3) {

selTitle=arg2;

tabMenu.SetTitleSelect(arg2);

tabMenu.SetBodyAdapter(bodyAdapter[arg2]);

}

}

class BodyClickEvent implements OnItemClickListener{

@Override

public void onItemClick(AdapterView> arg0, View arg1, int arg2,

long arg3) {

tabMenu.SetBodySelect(arg2,Color.GRAY);

String str="第"+String.valueOf(selTitle)+"栏/n/r"

+"第"+String.valueOf(arg2)+"项";

Toast.makeText(testTabMenu.this, str, 500).show();

}

}

@Override

/**

* 创建MENU

*/

public boolean onCreateOptionsMenu(Menu menu) {

menu.add("menu");// 必须创建一项

return super.onCreateOptionsMenu(menu);

}

@Override

/**

* 拦截MENU

*/

public boolean onMenuOpened(int featureId, Menu menu) {

if (tabMenu != null) {

if (tabMenu.isShowing())

tabMenu.dismiss();

else {

tabMenu.showAtLocation(findViewById(R.id.LinearLayout01),

Gravity.BOTTOM, 0, 0);

}

}

return false;// 返回为true 则显示系统menu

}

}

感兴趣的读者可以自己动手测试一下本文所述实例，相信会对大家的Android程序开发有一定帮助。