用过UCWEB-Android版的人都应该对其特殊的menu有印象,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(作者:CoffeeCole,email:longkefan@foxmail.com),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:
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:
main.xml的源码如下:
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
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nr"
+"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
}
}
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