Unity学习3，如何显示与隐藏平面检测

显示与隐藏平面检测

• • 准备工作
  • 添加脚本
  • 添加事件的疑难：
  • 演示效果

准备工作

首先搭建好基本环境，在AR Session Origin下添加一个AR Plane Manager对象，并添加一个预制体AR Default Plane到AR Plane Manager对象的Plane Prefab属性下（这一部分在Unity配置Android开发环境下有介绍不再记录）Unity配置Android开发环境与第一个Demo

添加脚本

AR Plane Manager 负责管理检测平面相关工作，其有一个属性 enabled，设置 enabled=true 则是开启了平面检测，设置 enabled=false 则是关闭了平面检测，因此， 我们可以非常方便的用代码控制平面的检测与关闭。前文我们也学习到，ARPlaneManager 并不负责检 测到的平面的可视化渲染，因此，在关闭平面检测后我们还应该取消已检测到的平面的显示。

1. 在Scripts文件夹下创建一个C#脚本，命名为 PlaneDetectionController
2. 将脚本挂载到与AR Plane Manager组件相同的场景对象上
3. 添加一个UI-Button，将按钮与脚本中的Toggle Plane Detection（）函数绑定

using System.Collections.Generic;using UnityEngine;using UnityEngine.UI;using UnityEngine.XR.ARFoundation;namespace UnityEngine.XR.ARFoundation.Samples{    /// 
    /// This example demonstrates how to toggle plane detection,    /// and also hide or show the existing planes.    ///     [RequireComponent(typeof(ARPlaneManager))]    public class PlaneDetectionController : MonoBehaviour    { [Tooltip("The UI Text element used to display plane detection messages.")] [SerializeField] Text m_TogglePlaneDetectionText; /// 
 /// The UI Text element used to display plane detection messages. ///  public Text togglePlaneDetectionText {     get { return m_TogglePlaneDetectionText; }     set { m_TogglePlaneDetectionText = value; } } /// 
 /// Toggles plane detection and the visualization of the planes. ///  public void TogglePlaneDetection() {     m_ARPlaneManager.enabled = !m_ARPlaneManager.enabled;     string planeDetectionMessage = "";     if (m_ARPlaneManager.enabled)     {  planeDetectionMessage = "Disable Plane Detection and Hide Existing";  SetAllPlanesActive(true);     }     else     {  planeDetectionMessage = "Enable Plane Detection and Show Existing";  SetAllPlanesActive(false);     }     if (togglePlaneDetectionText != null)  togglePlaneDetectionText.text = planeDetectionMessage; } /// 
 /// Iterates over all the existing planes and activates /// or deactivates their GameObjects'. ///  /// Each planes' GameObject is SetActive with this value. void SetAllPlanesActive(bool value) {     foreach (var plane in m_ARPlaneManager.trackables)  plane.gameObject.SetActive(value); } void Awake() {     m_ARPlaneManager = GetComponent<ARPlaneManager>(); } ARPlaneManager m_ARPlaneManager;    }}

添加事件的疑难：

UGUI中Button和Toggle 添加动态事件

Unity - 方法绑定到Button.OnClick

演示效果

https://www.bilibili.com/video/BV1sZ4y1f77G/