Android之用PopupWindow实现弹出菜单

在使用UC-WebBrowser时，你会发现它的弹出菜单跟系统自带的菜单不一样。它实现更多菜单选项的显示和分栏。其实，它的本身是PopupWindow或者是AlertDialog对话框，在里面添加两个GridView控件，一个是菜单标题栏，一个是菜单选项。菜单选项视图的切换可以通过适配器的变换，轻松地实现。

二、实现要点：

        （1）屏蔽系统弹出的菜单：

          1、首先创建至少一个系统的菜单选项

        
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01.@Override 
02.    public boolean onCreateOptionsMenu(Menu menu) {  
03.          
04.        menu.add("menu");  
05.        return super.onCreateOptionsMenu(menu);  
06.    } 
@Override
public boolean onCreateOptionsMenu(Menu menu) {

menu.add("menu");
return super.onCreateOptionsMenu(menu);
}

          2、在onMenuOpened方法里显示自己的菜单视图，并返回FALSE。

       
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01.@Override 
02.    public boolean onMenuOpened(int featureId, Menu menu) {  
03. 
04.        myMenu.showAtLocation(findViewById(R.id.layout), Gravity.BOTTOM, 0,0);  
05.          
06.        return false;   // true--显示系统自带菜单；false--不显示。  
07.    } 
@Override
public boolean onMenuOpened(int featureId, Menu menu) {

myMenu.showAtLocation(findViewById(R.id.layout), Gravity.BOTTOM, 0,0);

return false; // true--显示系统自带菜单；false--不显示。
}

        （2）点击菜单栏，切换菜单视图时，只要重新设置当前的适配器对象就可以。

        
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01.gv_body.setAdapter(bodyAdapter[arg2]);  //改变选项视图 
gv_body.setAdapter(bodyAdapter[arg2]); //改变选项视图

         （3）继承PopupWindow，重写一个类实现弹出对话框，主要是为了更好更简便实现弹出菜单的样式和事件响应等等。

        
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01.public class MyDefinedMenu extends PopupWindow { 。。。} 
public class MyDefinedMenu extends PopupWindow { 。。。}

        三、 具体代码如下：

        （1）布局：

          
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01.<?xml version="1.0" encoding="utf-8"?> 
02.<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android" 
03.    android:id="@+id/layout" 
04.    android:orientation="vertical" 
05.    android:layout_width="fill_parent" 
06.    android:layout_height="fill_parent" 
07.    > 
08.</LinearLayout> 
<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
android:id="@+id/layout"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
</LinearLayout>

          （2）程序代码

           1、主类：MyMenu

           
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01.package com.myandroid.test;  
02. 
03.import java.util.ArrayList;  
04.import java.util.List;  
05. 
06.import android.app.Activity;  
07.import android.os.Bundle;  
08.import android.view.Gravity;  
09.import android.view.Menu;  
10.import android.view.View;  
11.import android.widget.AdapterView;  
12.import android.widget.AdapterView.OnItemClickListener;  
13.import android.widget.Toast;  
14. 
15.public class MyMenu extends Activity {  
16.    private List<String> titles;  //标题栏  
17.    private List<List<String>> item_names;  //选项名称  
18.    private List<List<Integer>> item_images;    //选项图标  
19.    private MyDefinedMenu myMenu;   //弹出菜单  
20.      
21.      
22.    /** Called when the activity is first created. */ 
23.    @Override 
24.    public void onCreate(Bundle savedInstanceState) {  
25.        super.onCreate(savedInstanceState);  
26.        setContentView(R.layout.main);  
27.          
28.        //弹出菜单标题栏  
29.        titles = addItems(new String[]{"菜单一", "菜单二", "菜单三"});  
30.        //选项图标  
31.        item_images = new ArrayList<List<Integer>>();  
32.        item_images.add(addItems(new Integer[]{R.drawable.bag,  
33.            R.drawable.bluetooth, R.drawable.earth, R.drawable.email}));  
34.        item_images.add(addItems(new Integer[]{R.drawable.map,  
35.                R.drawable.news, R.drawable.reader, R.drawable.sound, R.drawable.tape}));  
36.        item_images.add( addItems(new Integer[]{R.drawable.telephone,  
37.                R.drawable.bluetooth, R.drawable.earth, R.drawable.email}));  
38.        //选项名称  
39.        item_names = new ArrayList<List<String>>();  
40.        item_names.add(addItems(new String[]{"购物", "蓝牙", "游览器", "邮件"}));  
41.        item_names.add(addItems(new String[]{"地图", "新闻", "阅读器", "音箱", "录音"}));  
42.        item_names.add(addItems(new String[]{"电话", "蓝牙", "阅读器", "邮箱"}));  
43.        //创建弹出菜单对象  
44.        myMenu = new MyDefinedMenu(this, titles, item_names,   
45.                item_images, new ItemClickEvent());  
46.          
47.    }  
48.      
49.    /** 
50.     * 转换为List<String> 
51.     * @param values 
52.     * @return 
53.     */ 
54.    private List<String> addItems(String[] values) {  
55.          
56.        List<String> list = new ArrayList<String>();  
57.        for (String var : values) {  
58.            list.add(var);  
59.        }  
60.          
61.        return list;  
62.    }  
63.      
64.    /** 
65.     * 转换为List<Integer> 
66.     * @param values 
67.     * @return 
68.     */ 
69.    private List<Integer> addItems(Integer[] values) {  
70.          
71.        List<Integer> list = new ArrayList<Integer>();  
72.        for (Integer var : values) {  
73.            list.add(var);  
74.        }  
75.          
76.        return list;  
77.    }  
78.      
79.    @Override 
80.    public boolean onCreateOptionsMenu(Menu menu) {  
81.          
82.        menu.add("menu");  
83.        return super.onCreateOptionsMenu(menu);  
84.    }  
85. 
86.    @Override 
87.    public boolean onMenuOpened(int featureId, Menu menu) {  
88. 
89.        myMenu.showAtLocation(findViewById(R.id.layout), Gravity.BOTTOM, 0,0);  
90.          
91.        return false;   // true--显示系统自带菜单；false--不显示。  
92.    }  
93.      
94.    /** 
95.     * 菜单选项点击事件 
96.     * @author Kobi 
97.     * 
98.     */ 
99.    class ItemClickEvent implements OnItemClickListener {  
100. 
101.        @Override 
102.        public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,  
103.                long arg3) {  
104.            //显示点击的是哪个菜单哪个选项。  
105.            Toast.makeText(MyMenu.this, "Menu: " +   
106.                    titles.get(myMenu.getTitleIndex()) +   
107.                    " Item: " + item_names.get(myMenu.getTitleIndex()).get(arg2),  
108.                    Toast.LENGTH_SHORT).show();  
109.            myMenu.dismiss();   //菜单消失  
110.        }  
111.          
112.    }  
113.      
114.      
115. 
116.      
117.      
118.} 
package com.myandroid.test;

import java.util.ArrayList;
import java.util.List;

import android.app.Activity;
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 MyMenu extends Activity {
private List<String> titles; //标题栏
private List<List<String>> item_names; //选项名称
private List<List<Integer>> item_images; //选项图标
private MyDefinedMenu myMenu; //弹出菜单


    /** Called when the activity is first created. */
    @Override
    public void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.main);
       
        //弹出菜单标题栏
        titles = addItems(new String[]{"菜单一", "菜单二", "菜单三"});
        //选项图标
        item_images = new ArrayList<List<Integer>>();
        item_images.add(addItems(new Integer[]{R.drawable.bag,
        R.drawable.bluetooth, R.drawable.earth, R.drawable.email}));
        item_images.add(addItems(new Integer[]{R.drawable.map,
            R.drawable.news, R.drawable.reader, R.drawable.sound, R.drawable.tape}));
        item_images.add( addItems(new Integer[]{R.drawable.telephone,
            R.drawable.bluetooth, R.drawable.earth, R.drawable.email}));
        //选项名称
        item_names = new ArrayList<List<String>>();
        item_names.add(addItems(new String[]{"购物", "蓝牙", "游览器", "邮件"}));
        item_names.add(addItems(new String[]{"地图", "新闻", "阅读器", "音箱", "录音"}));
        item_names.add(addItems(new String[]{"电话", "蓝牙", "阅读器", "邮箱"}));
        //创建弹出菜单对象
myMenu = new MyDefinedMenu(this, titles, item_names,
item_images, new ItemClickEvent());
       
    }
   
    /**
     * 转换为List<String>
     * @param values
     * @return
     */
    private List<String> addItems(String[] values) {
   
    List<String> list = new ArrayList<String>();
    for (String var : values) {
list.add(var);
}
   
    return list;
    }
   
    /**
     * 转换为List<Integer>
     * @param values
     * @return
     */
    private List<Integer> addItems(Integer[] values) {
   
    List<Integer> list = new ArrayList<Integer>();
    for (Integer var : values) {
list.add(var);
}
   
    return list;
    }
   
@Override
public boolean onCreateOptionsMenu(Menu menu) {

menu.add("menu");
return super.onCreateOptionsMenu(menu);
}

@Override
public boolean onMenuOpened(int featureId, Menu menu) {

myMenu.showAtLocation(findViewById(R.id.layout), Gravity.BOTTOM, 0,0);

return false; // true--显示系统自带菜单；false--不显示。
}

/**
* 菜单选项点击事件
* @author Kobi
*
*/
class ItemClickEvent implements OnItemClickListener {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
//显示点击的是哪个菜单哪个选项。
Toast.makeText(MyMenu.this, "Menu: " +
titles.get(myMenu.getTitleIndex()) +
" Item: " + item_names.get(myMenu.getTitleIndex()).get(arg2),
Toast.LENGTH_SHORT).show();
myMenu.dismiss(); //菜单消失
}

}



   
   
}

            2、弹出菜单类：MyDefinedMenu、

          
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01.package com.myandroid.test;  
02. 
03.import java.util.List;  
04. 
05.import com.myandroid.test.MyMenu.ItemClickEvent;  
06.import android.content.Context;  
07.import android.graphics.Color;  
08.import android.util.Log;  
09.import android.view.View;  
10.import android.view.ViewGroup.LayoutParams;  
11.import android.widget.AdapterView;  
12.import android.widget.AdapterView.OnItemClickListener;  
13.import android.widget.GridView;  
14.import android.widget.LinearLayout;  
15.import android.widget.PopupWindow;  
16. 
17. 
18. 
19.public class MyDefinedMenu extends PopupWindow {   
20.      
21.    private LinearLayout layout;    //总的布局  
22.    private GridView gv_title;      //菜单栏  
23.    private GridView gv_body;       //选项视图  
24.    private BodyAdatper[] bodyAdapter;  //选项适配器  
25.    private TitleAdatper titleAdapter;  //标题适配器  
26.    private Context context;            //上下文  
27.    private int titleIndex;             //菜单序号  
28.      
29.      
30.      
31.    public MyDefinedMenu(Context context, List<String> titles,   
32.            List<List<String>> item_names, List<List<Integer>> item_images,  
33.            ItemClickEvent itemClickEvent) {  
34.          
35.        super(context);  
36.        this.context = context;  
37.          
38.        //布局框架  
39.        layout = new LinearLayout(context);       
40.        layout.setOrientation(LinearLayout.VERTICAL);  
41.        layout.setLayoutParams(new LayoutParams(  
42.                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));  
43.          
44.        //菜单栏  
45.        titleIndex = 0;  
46.        gv_title = new GridView(context);  
47.        titleAdapter = new TitleAdatper(context, titles);  
48.        gv_title.setAdapter(titleAdapter);  
49.        gv_title.setLayoutParams(new LayoutParams(  
50.                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));  
51.        gv_title.setNumColumns(titles.size());  //菜单个数  
52.        gv_title.setBackgroundColor(Color.WHITE);  
53.          
54.        //选项视图  
55.        bodyAdapter = new BodyAdatper[item_names.size()];   //各个视图适配器  
56.        for (int i = 0; i < item_names.size(); i++) {  
57.            bodyAdapter[i] = new BodyAdatper(context, item_names.get(i), item_images.get(i));  
58.        }  
59.        gv_body = new GridView(context);  
60.        gv_body.setNumColumns(4);   //每行显示4个选项  
61.        gv_body.setBackgroundColor(Color.TRANSPARENT);  
62.        gv_body.setAdapter(bodyAdapter[0]); //设置适配器  
63.          
64.        //菜单项切换  
65.        gv_title.setOnItemClickListener(new OnItemClickListener() {  
66. 
67.            @Override 
68.            public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,  
69.                    long arg3) {  
70.                titleIndex = arg2;  //记录当前选中菜单项序号  
71.                titleAdapter.setFocus(arg2);  
72.                gv_body.setAdapter(bodyAdapter[arg2]);  //改变选项视图  
73. 
74.            }  
75.        });  
76.          
77.        //设置选项点击事件  
78.        gv_body.setOnItemClickListener(itemClickEvent);  
79.          
80.        //添加标题栏和选项  
81.        layout.addView(gv_title);  
82.        layout.addView(gv_body);  
83.          
84.        // 添加菜单视图  
85.        this.setContentView(layout);  
86.        this.setWidth(LayoutParams.FILL_PARENT);  
87.        this.setHeight(LayoutParams.WRAP_CONTENT);  
88.        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    
89.          
90.    }  
91.      
92.    /** 
93.     * 获取当前选中菜单项 
94.     * @return  菜单项序号 
95.     */ 
96.    public int getTitleIndex() {  
97.          
98.        return titleIndex;  
99.    }  
100. 
101.      
102.} 
package com.myandroid.test;

import java.util.List;

import com.myandroid.test.MyMenu.ItemClickEvent;
import android.content.Context;
import android.graphics.Color;
import android.util.Log;
import android.view.View;
import android.view.ViewGroup.LayoutParams;
import android.widget.AdapterView;
import android.widget.AdapterView.OnItemClickListener;
import android.widget.GridView;
import android.widget.LinearLayout;
import android.widget.PopupWindow;



public class MyDefinedMenu extends PopupWindow {

private LinearLayout layout; //总的布局
private GridView gv_title; //菜单栏
private GridView gv_body; //选项视图
private BodyAdatper[] bodyAdapter; //选项适配器
private TitleAdatper titleAdapter; //标题适配器
private Context context; //上下文
private int titleIndex; //菜单序号



public MyDefinedMenu(Context context, List<String> titles,
List<List<String>> item_names, List<List<Integer>> item_images,
ItemClickEvent itemClickEvent) {

super(context);
this.context = context;

//布局框架
layout = new LinearLayout(context);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

//菜单栏
    titleIndex = 0;
gv_title = new GridView(context);
titleAdapter = new TitleAdatper(context, titles);
gv_title.setAdapter(titleAdapter);
gv_title.setLayoutParams(new LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
gv_title.setNumColumns(titles.size()); //菜单个数
gv_title.setBackgroundColor(Color.WHITE);

//选项视图
bodyAdapter = new BodyAdatper[item_names.size()]; //各个视图适配器
for (int i = 0; i < item_names.size(); i++) {
bodyAdapter[i] = new BodyAdatper(context, item_names.get(i), item_images.get(i));
}
gv_body = new GridView(context);
gv_body.setNumColumns(4); //每行显示4个选项
gv_body.setBackgroundColor(Color.TRANSPARENT);
gv_body.setAdapter(bodyAdapter[0]); //设置适配器

//菜单项切换
gv_title.setOnItemClickListener(new OnItemClickListener() {

@Override
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
long arg3) {
titleIndex = arg2; //记录当前选中菜单项序号
titleAdapter.setFocus(arg2);
gv_body.setAdapter(bodyAdapter[arg2]); //改变选项视图

}
});

//设置选项点击事件
gv_body.setOnItemClickListener(itemClickEvent);

//添加标题栏和选项
layout.addView(gv_title);
layout.addView(gv_body);

// 添加菜单视图
this.setContentView(layout);
this.setWidth(LayoutParams.FILL_PARENT);
this.setHeight(LayoutParams.WRAP_CONTENT);
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 

}

/**
* 获取当前选中菜单项
* @return 菜单项序号
*/
public int getTitleIndex() {

return titleIndex;
}


}


           3、菜单栏适配器：TitleAdatper

         
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01.package com.myandroid.test;  
02. 
03.import java.util.List;  
04. 
05.import android.content.Context;  
06.import android.graphics.Color;  
07.import android.view.Gravity;  
08.import android.view.View;  
09.import android.view.ViewGroup;  
10.import android.view.ViewGroup.LayoutParams;  
11.import android.widget.BaseAdapter;  
12.import android.widget.GridView;  
13.import android.widget.TextView;  
14. 
15.public class TitleAdatper extends BaseAdapter {  
16.    private List<String> titles;  
17.    private Context context;  
18.    private final TextView[] tv_titels;  
19.      
20.      
21.    public TitleAdatper(Context context, List<String> titles) {  
22.        this.context = context;  
23.        this.titles = titles;  
24.        tv_titels = new TextView[titles.size()];  
25.    }  
26. 
27.    @Override 
28.    public int getCount() {  
29.        // TODO Auto-generated method stub  
30.        return titles.size();  
31.    }  
32. 
33.    @Override 
34.    public Object getItem(int position) {  
35.        // TODO Auto-generated method stub  
36.        return position;  
37.    }  
38. 
39.    @Override 
40.    public long getItemId(int position) {  
41.        // TODO Auto-generated method stub  
42.        return position;  
43.    }  
44.      
45.    /** 
46.     * 选中后，改变菜单颜色。 
47.     * @param position 
48.     */ 
49.    public void setFocus(int position) {  
50.          
51.        for (int i = 0; i < titles.size(); i++) {  
52.              
53.            tv_titels[i].setBackgroundColor(Color.WHITE);  
54.        }  
55.          
56.        tv_titels[position].setBackgroundColor(Color.BLUE);  
57.          
58.    }  
59. 
60.    @Override 
61.    public View getView(int position, View convertView, ViewGroup parent) {  
62.        //菜单栏文字项  
63.        tv_titels[position] = new TextView(context);  
64.        tv_titels[position].setGravity(Gravity.CENTER);  
65.        tv_titels[position].setText(titles.get(position));  
66.        tv_titels[position].setTextSize(18);  
67.        tv_titels[position].setLayoutParams(new GridView.LayoutParams(  
68.                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));  
69.          
70.        return tv_titels[position];  
71.    }  
72. 
73.} 
package com.myandroid.test;

import java.util.List;

import android.content.Context;
import android.graphics.Color;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.TextView;

public class TitleAdatper extends BaseAdapter {
private List<String> titles;
private Context context;
private final TextView[] tv_titels;


public TitleAdatper(Context context, List<String> titles) {
this.context = context;
this.titles = titles;
tv_titels = new TextView[titles.size()];
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return titles.size();
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}

/**
* 选中后，改变菜单颜色。
* @param position
*/
public void setFocus(int position) {

for (int i = 0; i < titles.size(); i++) {

tv_titels[i].setBackgroundColor(Color.WHITE);
}

tv_titels[position].setBackgroundColor(Color.BLUE);

}

@Override
public View getView(int position, View convertView, ViewGroup parent) {
//菜单栏文字项
tv_titels[position] = new TextView(context);
tv_titels[position].setGravity(Gravity.CENTER);
tv_titels[position].setText(titles.get(position));
tv_titels[position].setTextSize(18);
tv_titels[position].setLayoutParams(new GridView.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));

return tv_titels[position];
}

}


          4、菜单项视图适配器：BodyAdatper

         
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01.package com.myandroid.test;  
02. 
03.import java.util.List;  
04. 
05.import android.content.Context;  
06.import android.view.Gravity;  
07.import android.view.View;  
08.import android.view.ViewGroup;  
09.import android.view.ViewGroup.LayoutParams;  
10.import android.widget.BaseAdapter;  
11.import android.widget.GridView;  
12.import android.widget.ImageView;  
13.import android.widget.LinearLayout;  
14.import android.widget.TextView;  
15. 
16.public class BodyAdatper extends BaseAdapter {  
17.      
18.    private List<String> item_names;  
19.    private List<Integer> item_images;  
20.    private Context context;  
21.      
22.      
23.    public BodyAdatper(Context context, List<String> item_names,  
24.            List<Integer> item_images) {  
25.        this.context = context;  
26.        this.item_names = item_names;  
27.        this.item_images = item_images;  
28.    }  
29. 
30.    @Override 
31.    public int getCount() {  
32.        // TODO Auto-generated method stub  
33.        return item_images.size();  
34.    }  
35. 
36.    @Override 
37.    public Object getItem(int position) {  
38.        // TODO Auto-generated method stub  
39.        return position;  
40.    }  
41. 
42.    @Override 
43.    public long getItemId(int position) {  
44.        // TODO Auto-generated method stub  
45.        return position;  
46.    }  
47.      
48. 
49.    @Override 
50.    public View getView(int position, View convertView, ViewGroup parent) {  
51.        //总布局  
52.        LinearLayout layout = new LinearLayout(context);  
53.        layout.setOrientation(LinearLayout.VERTICAL);  
54.        layout.setGravity(Gravity.CENTER);  
55.        //选项名称  
56.        TextView tv_item = new TextView(context);  
57.        tv_item.setGravity(Gravity.CENTER);  
58.        tv_item.setLayoutParams(new GridView.LayoutParams(  
59.                LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));  
60.        tv_item.setText(item_names.get(position));  
61.        //选项图表  
62.        ImageView img_item = new ImageView(context);  
63.        img_item.setLayoutParams(new LayoutParams(50, 50));  
64.        img_item.setImageResource(item_images.get(position));  
65.        //添加选项图标和名字  
66.        layout.addView(img_item);  
67.        layout.addView(tv_item);  
68.          
69.        return layout;  
70.    }  
71. 
72.} 
package com.myandroid.test;

import java.util.List;

import android.content.Context;
import android.view.Gravity;
import android.view.View;
import android.view.ViewGroup;
import android.view.ViewGroup.LayoutParams;
import android.widget.BaseAdapter;
import android.widget.GridView;
import android.widget.ImageView;
import android.widget.LinearLayout;
import android.widget.TextView;

public class BodyAdatper extends BaseAdapter {

private List<String> item_names;
private List<Integer> item_images;
private Context context;


public BodyAdatper(Context context, List<String> item_names,
List<Integer> item_images) {
this.context = context;
this.item_names = item_names;
this.item_images = item_images;
}

@Override
public int getCount() {
// TODO Auto-generated method stub
return item_images.size();
}

@Override
public Object getItem(int position) {
// TODO Auto-generated method stub
return position;
}

@Override
public long getItemId(int position) {
// TODO Auto-generated method stub
return position;
}


@Override
public View getView(int position, View convertView, ViewGroup parent) {
//总布局
LinearLayout layout = new LinearLayout(context);
layout.setOrientation(LinearLayout.VERTICAL);
layout.setGravity(Gravity.CENTER);
//选项名称
TextView tv_item = new TextView(context);
tv_item.setGravity(Gravity.CENTER);
tv_item.setLayoutParams(new GridView.LayoutParams(
LayoutParams.FILL_PARENT, LayoutParams.WRAP_CONTENT));
tv_item.setText(item_names.get(position));
//选项图表
ImageView img_item = new ImageView(context);
img_item.setLayoutParams(new LayoutParams(50, 50));
img_item.setImageResource(item_images.get(position));
//添加选项图标和名字
layout.addView(img_item);
layout.addView(tv_item);

return layout;
}

}


          这里是用PopupWindow实现，当然也可以用AlertDialog或者其他自定义对话框等等，也可以改写Menu，还可以用Tab实现。实现的方法很多，但原理是相同的，例如用两个GridView，一个作为菜单栏，一个作为菜单项视图。


本文来自CSDN博客，转载请标明出处：http://blog.csdn.net/kkfdsa132/archive/2011/05/08/6403404.aspx

评论

1 楼 guanglin35 2011-08-25  

没图没真相