语源科技BlogJava-子皿燕(飞飞)http://www.blogjava.net/Mifer/zh-cnThu, 07 May 2026 03:20:11 GMTThu, 07 May 2026 03:20:11 GMT60android开发初学--menu的用法http://www.blogjava.net/Mifer/archive/2010/08/11/328553.html子皿燕子皿燕Wed, 11 Aug 2010 08:45:00 GMThttp://www.blogjava.net/Mifer/archive/2010/08/11/328553.htmlhttp://www.blogjava.net/Mifer/comments/328553.htmlhttp://www.blogjava.net/Mifer/archive/2010/08/11/328553.html#Feedback0http://www.blogjava.net/Mifer/comments/commentRss/328553.htmlhttp://www.blogjava.net/Mifer/services/trackbacks/328553.html

menuActivity.java 内容
    public void onCreate(Bundle savedInstanceState)
    {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.menu);
        button1=(Button) findViewById(R.id.buttons);
        button2=(Button) findViewById(R.id.buttons2);
        button1.setVisibility(View.INVISIBLE);
        button2.setVisibility(View.INVISIBLE);
        
    }
     
     @Override
    public boolean onCreateOptionsMenu(Menu menu)
    {
        super.onCreateOptionsMenu(menu);
        menu.add(0, 0, 0, "显示buttons1");
        menu.add(0, 1, 1, "显示buttons1");
        menu.findItem(1);
        return true;        
    }
     @Override
    public boolean onOptionsItemSelected(MenuItem item)
    {
        switch(item.getItemId()){
        case 0:button2.setVisibility(View.INVISIBLE);
            button1.setVisibility(View.VISIBLE);
        
            break;
        case 1:button1.setVisibility(View.INVISIBLE);
        button2.setVisibility(View.VISIBLE);
            break;
        }
        return super.onOptionsItemSelected(item);
    }
xml文件中内容
   <TextView 
    android:layout_width="fill_parent"
    android:layout_height="wrap_content"
    android:text="this is the menu text" />

    <Button android:id="@+id/buttons"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="buttons" />
    
    <Button android:id="@+id/buttons2"
    android:layout_width="wrap_content"
    android:layout_height="wrap_content"
    android:text="buttons2" />

 



子皿燕 2010-08-11 16:45 发表评论
]]>