本文来自http://blog.csdn.net/hellogv/ ,引用必须注明出处!
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@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:
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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate android:fromYDelta="100%p" android:toYDelta="0" android:duration="1000" />
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<alpha android:fromAlpha="0.0" android:toAlpha="1.0" android:duration="1000" />
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</set>
新建文件popup_exit.xml:
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<?xml version="1.0" encoding="utf-8"?>
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<set xmlns:android="http://schemas.android.com/apk/res/android">
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<translate android:fromYDelta="0" android:toYDelta="100%p" android:duration="1000" />
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<alpha android:fromAlpha="1.0" android:toAlpha="0.0" android:duration="1000" />
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</set>
在工程的values文件夹里新建文件popup_animation.xml:
<?xml version="1.0" encoding="utf-8"?>
<resources>
<style name="PopupAnimation" parent="android:Animation">
<item name="android:windowEnterAnimation">@anim/popup_enter</item>
<item name="android:windowExitAnimation">@anim/popup_exit</item>
</style>
</resources>
main.xml的源码如下:
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<?xml version="1.0" encoding="utf-8"?>
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<LinearLayout android:id="@+id/LinearLayout01"
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android:layout_width="fill_parent" android:layout_height="fill_parent"
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xmlns:android="http://schemas.android.com/apk/res/android">
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<TextView android:id="@+id/TextView01" android:layout_height="wrap_content"
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android:layout_width="fill_parent" android:text="扩展Menu----hellogv"></TextView>
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</LinearLayout>
TabMenu的封装类TabMenu.java的源码如下:
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package com.testTabMenu;
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import android.content.Context;
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import android.graphics.Color;
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import android.graphics.drawable.ColorDrawable;
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import android.view.Gravity;
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import android.view.View;
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import android.view.ViewGroup;
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import android.widget.BaseAdapter;
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import android.widget.GridView;
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import android.widget.ImageView;
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import android.widget.LinearLayout;
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import android.widget.PopupWindow;
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import android.widget.TextView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.LinearLayout.LayoutParams;
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public class TabMenu extends PopupWindow{
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private GridView gvBody, gvTitle;
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private LinearLayout mLayout;
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private MenuTitleAdapter titleAdapter;
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public TabMenu(Context context,OnItemClickListener titleClick,OnItemClickListener bodyClick,
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MenuTitleAdapter titleAdapter,int colorBgTabMenu,int aniTabMenu){
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super(context);
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mLayout = new LinearLayout(context);
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mLayout.setOrientation(LinearLayout.VERTICAL);
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gvTitle = new GridView(context);
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gvTitle.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
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gvTitle.setNumColumns(titleAdapter.getCount());
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gvTitle.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
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gvTitle.setVerticalSpacing(1);
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gvTitle.setHorizontalSpacing(1);
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gvTitle.setGravity(Gravity.CENTER);
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gvTitle.setOnItemClickListener(titleClick);
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gvTitle.setAdapter(titleAdapter);
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gvTitle.setSelector(new ColorDrawable(Color.TRANSPARENT));
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this.titleAdapter=titleAdapter;
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gvBody = new GridView(context);
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gvBody.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
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gvBody.setSelector(new ColorDrawable(Color.TRANSPARENT));
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gvBody.setNumColumns(4);
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gvBody.setStretchMode(GridView.STRETCH_COLUMN_WIDTH);
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gvBody.setVerticalSpacing(10);
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gvBody.setHorizontalSpacing(10);
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gvBody.setPadding(10, 10, 10, 10);
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gvBody.setGravity(Gravity.CENTER);
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gvBody.setOnItemClickListener(bodyClick);
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mLayout.addView(gvTitle);
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mLayout.addView(gvBody);
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this.setContentView(mLayout);
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this.setWidth(LayoutParams.FILL_PARENT);
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this.setHeight(LayoutParams.WRAP_CONTENT);
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this.setBackgroundDrawable(new ColorDrawable(colorBgTabMenu));
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this.setAnimationStyle(aniTabMenu);
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this.setFocusable(true);
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}
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public void SetTitleSelect(int index)
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{
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gvTitle.setSelection(index);
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this.titleAdapter.SetFocus(index);
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}
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public void SetBodySelect(int index,int colorSelBody)
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{
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int count=gvBody.getChildCount();
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for(int i=0;i<count;i++)
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{
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if(i!=index)
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((LinearLayout)gvBody.getChildAt(i)).setBackgroundColor(Color.TRANSPARENT);
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}
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((LinearLayout)gvBody.getChildAt(index)).setBackgroundColor(colorSelBody);
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}
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public void SetBodyAdapter(MenuBodyAdapter bodyAdapter)
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{
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gvBody.setAdapter(bodyAdapter);
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}
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static public class MenuBodyAdapter extends BaseAdapter {
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private Context mContext;
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private int fontColor,fontSize;
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private String[] texts;
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private int[] resID;
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public MenuBodyAdapter(Context context, String[] texts,int[] resID, int fontSize,int fontColor)
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{
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this.mContext = context;
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this.fontColor = fontColor;
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this.texts = texts;
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this.fontSize=fontSize;
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this.resID=resID;
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}
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public int getCount() {
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return texts.length;
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}
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public Object getItem(int position) {
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return makeMenyBody(position);
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}
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public long getItemId(int position) {
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return position;
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}
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private LinearLayout makeMenyBody(int position)
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{
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LinearLayout result=new LinearLayout(this.mContext);
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result.setOrientation(LinearLayout.VERTICAL);
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result.setGravity(Gravity.CENTER_HORIZONTAL|Gravity.CENTER_VERTICAL);
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result.setPadding(10, 10, 10, 10);
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TextView text = new TextView(this.mContext);
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text.setText(texts[position]);
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text.setTextSize(fontSize);
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text.setTextColor(fontColor);
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text.setGravity(Gravity.CENTER);
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text.setPadding(5, 5, 5, 5);
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ImageView img=new ImageView(this.mContext);
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img.setBackgroundResource(resID[position]);
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result.addView(img,new LinearLayout.LayoutParams(new LayoutParams(LayoutParams.WRAP_CONTENT,LayoutParams.WRAP_CONTENT)));
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result.addView(text);
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return result;
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}
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public View getView(int position, View convertView, ViewGroup parent) {
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return makeMenyBody(position);
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}
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}
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static public class MenuTitleAdapter extends BaseAdapter {
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private Context mContext;
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private int fontColor,unselcolor,selcolor;
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private TextView[] title;
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public MenuTitleAdapter(Context context, String[] titles, int fontSize,
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int fontcolor,int unselcolor,int selcolor) {
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this.mContext = context;
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this.fontColor = fontcolor;
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this.unselcolor = unselcolor;
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this.selcolor=selcolor;
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this.title = new TextView[titles.length];
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for (int i = 0; i < titles.length; i++) {
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title[i] = new TextView(mContext);
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title[i].setText(titles[i]);
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title[i].setTextSize(fontSize);
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title[i].setTextColor(fontColor);
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title[i].setGravity(Gravity.CENTER);
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title[i].setPadding(10, 10, 10, 10);
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}
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}
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public int getCount() {
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return title.length;
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}
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public Object getItem(int position) {
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return title[position];
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}
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public long getItemId(int position) {
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return title[position].getId();
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}
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private void SetFocus(int index)
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{
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for(int i=0;i<title.length;i++)
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{
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if(i!=index)
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{
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title[i].setBackgroundDrawable(new ColorDrawable(unselcolor));
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title[i].setTextColor(fontColor);
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}
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}
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title[index].setBackgroundColor(0x00);
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title[index].setTextColor(selcolor);
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}
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public View getView(int position, View convertView, ViewGroup parent) {
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View v;
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if (convertView == null) {
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v = title[position];
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} else {
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v = convertView;
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}
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return v;
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}
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}
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}
testTabMenu介绍了数据的定义以及TabMenu的使用,源码如下:
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package com.testTabMenu;
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import android.app.Activity;
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import android.graphics.Color;
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import android.os.Bundle;
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import android.view.Gravity;
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import android.view.Menu;
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import android.view.View;
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import android.widget.AdapterView;
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import android.widget.AdapterView.OnItemClickListener;
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import android.widget.Toast;
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public class testTabMenu extends Activity {
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TabMenu.MenuBodyAdapter []bodyAdapter=new TabMenu.MenuBodyAdapter[3];
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TabMenu.MenuTitleAdapter titleAdapter;
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TabMenu tabMenu;
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int selTitle=0;
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@Override
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public void onCreate(Bundle savedInstanceState) {
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super.onCreate(savedInstanceState);
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setContentView(R.layout.main);
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titleAdapter = new TabMenu.MenuTitleAdapter(this, new String[] { "常用",
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"设置", "工具" }, 16, 0xFF222222,Color.LTGRAY,Color.WHITE);
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bodyAdapter[0]=new TabMenu.MenuBodyAdapter(this,new String[] { "常用1", "常用2", },
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new int[] { R.drawable.menu_test,
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R.drawable.menu_bookmark},13, 0xFFFFFFFF);
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bodyAdapter[1]=new TabMenu.MenuBodyAdapter(this,new String[] { "设置1", "设置2",
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"设置3"}, new int[] { R.drawable.menu_edit,
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R.drawable.menu_delete, R.drawable.menu_fullscreen},13, 0xFFFFFFFF);
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bodyAdapter[2]=new TabMenu.MenuBodyAdapter(this,new String[] { "工具1", "工具2",
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"工具3", "工具4" }, new int[] { R.drawable.menu_copy,
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R.drawable.menu_cut, R.drawable.menu_normalmode,
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R.drawable.menu_quit },13, 0xFFFFFFFF);
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tabMenu=new TabMenu(this,
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new TitleClickEvent(),
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new BodyClickEvent(),
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titleAdapter,
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0x55123456,
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R.style.PopupAnimation);
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tabMenu.update();
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tabMenu.SetTitleSelect(0);
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tabMenu.SetBodyAdapter(bodyAdapter[0]);
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}
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class TitleClickEvent implements OnItemClickListener{
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@Override
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public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
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long arg3) {
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selTitle=arg2;
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tabMenu.SetTitleSelect(arg2);
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tabMenu.SetBodyAdapter(bodyAdapter[arg2]);
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}
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}
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class BodyClickEvent implements OnItemClickListener{
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@Override
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public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
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long arg3) {
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tabMenu.SetBodySelect(arg2,Color.GRAY);
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String str="第"+String.valueOf(selTitle)+"栏/n/r"
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+"第"+String.valueOf(arg2)+"项";
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Toast.makeText(testTabMenu.this, str, 500).show();
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}
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}
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@Override
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public boolean onCreateOptionsMenu(Menu menu) {
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menu.add("menu");
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return super.onCreateOptionsMenu(menu);
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}
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@Override
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public boolean onMenuOpened(int featureId, Menu menu) {
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if (tabMenu != null) {
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if (tabMenu.isShowing())
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tabMenu.dismiss();
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else {
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tabMenu.showAtLocation(findViewById(R.id.LinearLayout01),
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Gravity.BOTTOM, 0, 0);
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}
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}
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return false;
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}
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}