Hololens2基础之button交互
主要是控制功能太多且不能同时赋予一个物体，如tap to place, bounds control,object manipulator写到一个例子中，用button控制开关省事，顺便上一节的路标Chevron也开关控制一下试试。
参考官网：Exercise - Panel of buttons and dynamic menus - Learn | Microsoft Docs
1. Create Empty，name the object Buttons，
2.use the Add Component button to add the GridObjectCollection component and configure it as follows:
- Sort Type: Child Order
- Layout: Horizontal
- Cell Width: 0.2
- Anchor: Middle Left
上面的喇叭太烦人了，挡视野，点击Gizmos按钮解决了。如下：
3.In the Project window, navigate to the Assets > MRTK.Tutorials.GettingStarted > Prefabs folder, click-and-drag the PressableRoundButton prefab on to the Buttons object, then right-click on the PressableRoundButton and select Duplicate to create a copy, repeat until four.全部改名字如下图。
Then In the Hierarchy window, 选择buttons选项，click the Update Collection button to update the position of the Buttons,按钮自动如上图排列。
4..For each button, select the SeeItSayItLabel > TextMeshPro child object, then in the Inspector window, change the respective TextMeshPro - Text component text to match the button names:
5.In the Hierarchy window, select the indicator button object, then in the Inspector window, configure the Interactable.OnClick () event as follows:
- Assign the Chevron object to the None (Object) field
- From the No Function dropdown, select directionalindicator > bool enabled to set this function as the action to be executed when the event is triggered
Chevron设置如下，add compoment 添加了Directionalindicator函数，不能勾：
Directionalindicator函数位置如下：
按钮添加函数过程如下两图：
勾上勾。
6.tap to place 添加一个函数，控制cube,如下图：
7. manipulate enable添加两个函数，控制cube,如下,记得勾上：
8. manipulate disable添加两个函数，控制cube,如下,不能勾：
经测试，很好用。跟朋友探讨过，以上的方式 开和关要两个按钮才办得到。不怎么好。