android menu自定义,Android提高之自定义Menu(TabMenu)实现方法
一般使用過UCWEB-Android版的人都應(yīng)該對其特殊的menu有一定的印象，把menu做成Tab-Menu(支持分頁的Menu)，可以容納比Android傳統(tǒng)的menu更豐富的內(nèi)容(Android的menu超過6項(xiàng)則縮略在[更多]里)，本文參考網(wǎng)上的例子的基礎(chǔ)上對例子進(jìn)行簡化以及封裝，使其作為一個復(fù)合控件融入自己的framework。
先來看看本文程序運(yùn)行的效果如下圖所示：
TabMenu本身就是一個PopupWindow，PopupWindow上面放了兩個GridView,第一個GridView就是分頁標(biāo)簽，位于PopupWindow的頂部，第二個GridView是菜單，位于PopupWindow的主體。為了實(shí)現(xiàn)PopupWindow的彈出/退出的動畫效果，本文使用了以下代碼：
在工程的res文件夾里添加anim子目錄，再新建文件popup_enter.xml：
新建文件popup_exit.xml：
在工程的values文件夾里新建文件popup_animation.xml：
@anim/popup_enter
@anim/popup_exit
main.xml的源碼如下：
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="擴(kuò)展Menu----hellogv">
TabMenu的封裝類TabMenu.java的源碼如下：
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);
//標(biāo)題選項(xiàng)欄
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));//選中的時候?yàn)橥该魃?/p>
this.titleAdapter=titleAdapter;
//子選項(xiàng)欄
gvBody = new GridView(context);
gvBody.setLayoutParams(new LayoutParams(LayoutParams.FILL_PARENT,LayoutParams.WRAP_CONTENT));
gvBody.setSelector(new ColorDrawable(Color.TRANSPARENT));//選中的時候?yàn)橥该魃?/p>
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);
//設(shè)置默認(rèn)項(xiàng)
this.setContentView(mLayout);
this.setWidth(LayoutParams.FILL_PARENT);
this.setHeight(LayoutParams.WRAP_CONTENT);
this.setBackgroundDrawable(new ColorDrawable(colorBgTabMenu));// 設(shè)置TabMenu菜單背景
this.setAnimationStyle(aniTabMenu);
this.setFocusable(true);// menu菜單獲得焦點(diǎn) 如果沒有獲得焦點(diǎn)menu菜單中的控件事件無法響應(yīng)
}
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);
}
/**
* 自定義Adapter，TabMenu的每個分頁的主體
*
*/
static public class MenuBodyAdapter extends BaseAdapter {
private Context mContext;
private int fontColor,fontSize;
private String[] texts;
private int[] resID;
/**
* 設(shè)置TabMenu的分頁主體
* @param context 調(diào)用方的上下文
* @param texts 按鈕集合的字符串?dāng)?shù)組
* @param resID 按鈕集合的圖標(biāo)資源數(shù)組
* @param fontSize 按鈕字體大小
* @param color 按鈕字體顏色
*/
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);
}
}
/**
* 自定義Adapter,TabMenu的分頁標(biāo)簽部分
*
*/
static public class MenuTitleAdapter extends BaseAdapter {
private Context mContext;
private int fontColor,unselcolor,selcolor;
private TextView[] title;
/**
* 設(shè)置TabMenu的title
* @param context 調(diào)用方的上下文
* @param titles 分頁標(biāo)簽的字符串?dāng)?shù)組
* @param fontSize 字體大小
* @param fontcolor 字體顏色
* @param unselcolor 未選中項(xiàng)的背景色
* @param selcolor 選中項(xiàng)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();
}
/**
* 設(shè)置選中的效果
*/
private void SetFocus(int index)
{
for(int i=0;i
{
if(i!=index)
{
title[i].setBackgroundDrawable(new ColorDrawable(unselcolor));//設(shè)置沒選中的顏色
title[i].setTextColor(fontColor);//設(shè)置沒選中項(xiàng)的字體顏色
}
}
title[index].setBackgroundColor(0x00);//設(shè)置選中項(xiàng)的顏色
title[index].setTextColor(selcolor);//設(shè)置選中項(xiàng)的字體顏色
}
public View getView(int position, View convertView, ViewGroup parent) {
View v;
if (convertView == null) {
v = title[position];
} else {
v = convertView;
}
return v;
}
}
}
testTabMenu介紹了數(shù)據(jù)的定義以及TabMenu的使用，源碼如下：
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);
//設(shè)置分頁欄的標(biāo)題
titleAdapter = new TabMenu.MenuTitleAdapter(this, new String[] { "常用",
"設(shè)置", "工具" }, 16, 0xFF222222,Color.LTGRAY,Color.WHITE);
//定義每項(xiàng)分頁欄的內(nèi)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[] { "設(shè)置1", "設(shè)置2",
"設(shè)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的背景顏色
R.style.PopupAnimation);//出現(xiàn)與消失的動畫
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)+"欄/n/r"
+"第"+String.valueOf(arg2)+"項(xiàng)";
Toast.makeText(testTabMenu.this, str, 500).show();
}
}
@Override
/**
* 創(chuàng)建MENU
*/
public boolean onCreateOptionsMenu(Menu menu) {
menu.add("menu");// 必須創(chuàng)建一項(xiàng)
return super.onCreateOptionsMenu(menu);
}
@Override
/**
* 攔截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;// 返回為true 則顯示系統(tǒng)menu
}
}
感興趣的讀者可以自己動手測試一下本文所述實(shí)例，相信會對大家的Android程序開發(fā)有一定幫助。
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