Wed, 11 Aug 2010 08:45:00 GMT

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, "昄��buttons1");
        menu.add(0, 1, 1, "昄��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);
    }

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子皿�?/a> 2010-08-11 16:45 发表评论

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