Android提高十八篇之自定义MenuTabMenu.docx

1、Android提高十八篇之自定义MenuTabMenuAndroid提高十八篇之自定义Menu(TabMenu)文章录入：7747.Net责任编辑：7747.Net 464 【字体：小 大】快要过年了，在这里先祝广大的技术宅兔年快乐！ 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),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fr

2、amework。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：set xmlns:android= 新建文件popup_exit.xml：set xmlns:android= 在工程的values文件夹里新建文件popup_

3、animation.xml： anim/popup_enter anim/popup_exit main.xml的源码如下：LinearLayout android:id=+id/LinearLayout01android:layout_width=fill_parent android:layout_height=fill_parentxmlns:android=TabMenu的封装类TabMenu.java的源码如下：package com.testTabMenu;import android.content.Context;import android.graphics.Color;im

4、port 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

5、 android.widget.TextView;import android.widget.AdapterView.OnItemClickListener;import android.widget.LinearLayout.LayoutParams;public class TabMenu extends PopupWindowprivate GridView gvBody, gvTitle;private LinearLayout mLayout;private MenuTitleAdapter titleAdapter;public TabMenu(Context context,On

6、ItemClickListener 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(L

7、ayoutParams.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.

8、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.TRANSP

9、ARENT);/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.ad

10、dView(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

11、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;icount;i+)if(i!=index)(LinearLayout)gvBody.getChildAt(i).setBackgroundColor(Color.TRANSPARENT);(Line

12、arLayout)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

13、;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;th

14、is.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)LinearLay

15、out 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(textsposition);text.setTextSize(fontSize);text.setTe

16、xtColor(fontColor);text.setGravity(Gravity.CENTER);text.setPadding(5, 5, 5, 5);ImageView img=new ImageView(this.mContext);img.setBackgroundResource(resIDposition);result.addView(img,new LinearLayout.LayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT);result.addView(tex

17、t);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

18、; /* * 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

19、 = context; this.fontColor = fontcolor; this.unselcolor = unselcolor; this.selcolor=selcolor; this.title = new TextViewtitles.length; for (int i = 0; i titles.length; i+) titlei = new TextView(mContext); titlei.setText(titlesi); titlei.setTextSize(fontSize); titlei.setTextColor(fontColor); titlei.se

20、tGravity(Gravity.CENTER); titlei.setPadding(10, 10, 10, 10); public int getCount() return title.length; public Object getItem(int position) return titleposition; public long getItemId(int position) return titleposition.getId(); /* * 设置选中的效果 */ private void SetFocus(int index) for(int i=0;ititle.leng

21、th;i+) if(i!=index) titlei.setBackgroundDrawable(new ColorDrawable(unselcolor);/设置没选中的颜色 titlei.setTextColor(fontColor);/设置没选中项的字体颜色 titleindex.setBackgroundColor(0x00);/设置选中项的颜色 titleindex.setTextColor(selcolor);/设置选中项的字体颜色 public View getView(int position, View convertView, ViewGroup parent) View

22、v; if (convertView = null) v = titleposition; 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;

23、import android.widget.AdapterView;import android.widget.AdapterView.OnItemClickListener;import android.widget.Toast;public class testTabMenu extends Activity TabMenu.MenuBodyAdapter bodyAdapter=new TabMenu.MenuBodyAdapter3;TabMenu.MenuTitleAdapter titleAdapter;TabMenu tabMenu;int selTitle=0;Override

24、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bodyAdapter0=new TabMenu.MenuBodyAdapter(this,new String 常用1, 常用2, , new int R.drawable.menu_test,