Android实现扩展Menu的方法

本文实例讲述了android实现扩展menu的方法。分享给大家供大家参考。具体如下：

1. java代码：

package com.tabmenu;
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;
/**可扩展menu
 * 
 * @author antking
 **/
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<count;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<title.length;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;
  }
 }
}

2. java代码：

package com.tabmenu;
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;
/**
 * 活动界面
 * @author wei
 *
 */
public class activity01 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[] { android.r.drawable.alert_dark_frame,
    android.r.drawable.ic_delete},13, 0xffffffff);
  bodyadapter[1]=new tabmenu.menubodyadapter(this,new string[] { "设置1", "设置2",
     "设置3"}, new int[] { android.r.drawable.ic_menu_edit,
     android.r.drawable.btn_default,android.r.drawable.btn_dropdown},13, 0xffffffff);
  bodyadapter[2]=new tabmenu.menubodyadapter(this,new string[] { "工具1", "工具2",
     "工具3", "工具4" }, new int[] { android.r.drawable.ic_media_ff,
    android.r.drawable.ic_menu_delete, android.r.drawable.ic_btn_speak_now,
     android.r.drawable.edit_text },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(activity01.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
 }
}

3. 运行结果：

希望本文所述对大家的android程序设计有所帮助。