在activity中重写onKeyDown函数
@Override
public boolean onKeyDown(int keyCode, KeyEvent event) {
switch (keyCode) {
case KeyEvent.KEYCODE_BACK:
return true;
case KeyEvent.KEYCODE_MENU:
return true;
default:
break;
}
return super.onKeyDown(keyCode, event);
}
原文：http://blog.csdn.net/u012554768/article/details/19198867