Menu 大变脸

实话说 就个人感觉 Memu 真的很丑 所以今天尝试换掉之

 

 

[原理]

1. 保留Menu按键起作用

2. 用ListView显示所有子菜单

 

 

 

[代码 步骤]

1. 定义 menu.xml 仅含有一个ListView 并得到其View

    <?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:orientation="vertical"
    android:layout_width="fill_parent"
    android:layout_height="fill_parent"
    >
<ListView  
	android:id="@+id/mList"
    android:layout_width="fill_parent" 
    android:layout_height="wrap_content" 
    />
</LinearLayout>

  

 

    mview = this.getLayoutInflater().inflate(R.layout.menu, null);
    	
  

 

 

2. 使用PopupWindow作为菜单显示容器 并得到其中的ListView 供后续使用

    mpop = new PopupWindow(mview,500,200);
    	mpop.setFocusable(true);

    	mlist = (ListView)mview.findViewById(R.id.mList);
    	
  

 

 

3. 定义List<Map<String,String>> moption 用于存放菜单名字

    public void initialMenu(){
    	moption = new ArrayList<Map<String,String>>();
    	
    	Map<String,String> map1 = new HashMap<String,String>();
    	map1.put("Option", "新增");
    	moption.add(map1);
    	
    	Map<String,String> map2 = new HashMap<String,String>();
    	map2.put("Option", "删除");
    	moption.add(map2);
    	
    	Map<String,String> map3 = new HashMap<String,String>();
    	map3.put("Option", "属性");
    	moption.add(map3);
    	
    }
  

 

4. 在ListView中显示moption

    String[] from = {"Option"};
        int[] to = {R.id.text1};
        madapter = new SimpleAdapter(this, moption, R.layout.menulayout, from,to);
        
        mlist.setAdapter(madapter);
  

 

5. 注册Menu弹起事件

    public boolean onCreateOptionsMenu(Menu menu) {
    	mpop.showAtLocation(findViewById(R.id.mainlayout), Gravity.CENTER, 30, 40);
    	
        return false;
    }
  

 

6. 注册Menu子项单击事件 而后关闭之

    mlist.setOnItemClickListener(new OnItemClickListener(){
			@Override
			public void onItemClick(AdapterView<?> arg0, View arg1, int arg2,
					long arg3) {
				// TODO Auto-generated method stub
				doMenu(arg2);
				
				mpop.dismiss();
			}
        	
        });


public void doMenu(int i){
    	switch(i){
    	case 0:
    		break;
    	
    	case 1:
    		break;
    			
    	}
    	
    	Toast.makeText(this, "Menu "+i+" is selected!", Toast.LENGTH_LONG).show();
    }
  

 

 

 7. emulator 运行截图：

 

Menu 大变脸