不点击menu按钮、点击自定义的按钮弹出系统的menu菜单如何实现、菜鸟请教、
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http://www.eoeandroid.com/thread-69418-1-1.html
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调用这句
KeyEvent event=new KeyEvent(KeyEvent.ACTION_DOWN, KeyEvent.KEYCODE_MENU);
myActivity.this.dispatchKeyEvent(event);