buttony

基本解释

Button x="17" y="14" label="Button" id="btnSayHello"
s:Button x="17" y="14" label="Button" id="btnSayHello"
For the button position, set the x and y attributes of the shadow tree's element.
对于按钮的位置，设置影像树中元素的 x 和 y 属性。
It is worth noticing how the y coordinate of the popUp window of the vertical menu button is converted from local to global coordinates in the last line of this code fragment.
您有必要了解如何将垂直菜单按钮的 popUp 窗口的 y 坐标从局部坐标转换成全局坐标（见代码片段的最后一行）。

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