1.利用手机USB调试，打包安卓项目
值得注意的是:
- 手机 开发者模式打开
- 手机 USB调试打开
- 连接时为 传送文件
2.2021版本unity 打包设置示意图：
3.Unity事件函数
Reset()函数：
调用时间：当脚本第一次挂载到物体对象上时或者就是在我们的物体的Inspector面板中，对脚本test进行Reset时也会触发。
作用：来初始化脚本的各个属性，Reset最常用于在检测面板中提供良好的默认值。
Awake()：
调用时间：
a.在加载场景资源时，初始化包含脚本的激活状态下的GameObject
b.GameObject从非激活状态转变为激活状态
c.在初始化使用Instantiate创建的GameObject之后
每个游戏物体上的Awke以随机的顺序被调用。
Awake总是在Start之前被调用。
Awake像构造函数一样只被调用一次
OnEnable()
当对象变为可用或该组件被激活时此函数被调用。
4.锚点的使用
射线以及锚点添加的实践
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using UnityEngine.XR.ARFoundation;
using UnityEngine.XR.ARSubsystems;
public class ARPlaneHologram : MonoBehaviour
{
// The Prefab to instantiate on touch
[SerializeField]
private GameObject _prefabtoPlace;
//Cache ARRaycastMananager GameObject from ARCoreSession
private ARRaycastManager _aRRaycastManager;
//List for raycast hits is re-used by raycast manager
private static readonly List<ARRaycastHit> hits = new List<ARRaycastHit>();
//Cache ARAnchorMananager GameObject from ARCoreSession
private ARAnchorManager _aRAnchorManager;
//Cache ARPlaneMananager GameObject from ARCoreSession
private ARPlaneManager _aRPlaneManager;
private void Awake()
{
_aRRaycastManager = GetComponent<ARRaycastManager>();
_aRAnchorManager = GetComponent<ARAnchorManager>();
}
private void Update()
{
// Only consider single-finger touches that are beginning
//Touch touch;
if (Input.touchCount < 1 || Input.GetTouch(0).phase != TouchPhase.Began) return;
//Perform AR raycast to any kind of trackable
if (_aRRaycastManager.Raycast(Input.GetTouch(0).position ,hits, TrackableType.AllTypes))
{
// Raycast hits are sorted by distance, so the first one will be the closest hit
var hitpose = hits[0].pose;
//Instantiate the prefab at the given position
//Instantiate(_prefabtoPlace, hitpose.position, hitpose.rotation);
ARAnchor anchor;
anchor = CreateAnchor(hits[0]);
}
}
ARAnchor CreateAnchor(in ARRaycastHit hit)
{
ARAnchor anchor;
//if we hit a plane, try to "attach" the anchor to the plane
if (hit.trackable is ARPlane plane)
{
var planeManager = GetComponent<ARPlaneManager>();
if (planeManager)
{
//get original prefab of ARAnchorManager
var oldprefab = _aRAnchorManager.anchorPrefab;
//replace into the prefab of this Script Component
//Also,Any prefab is ok if you want
_aRAnchorManager.anchorPrefab = _prefabtoPlace;
//将锚点锚定到平面，当前hit.pose创建锚点
anchor = _aRAnchorManager.AttachAnchor(plane, hit.pose);
//Restore original prefab
_aRAnchorManager.anchorPrefab = oldprefab;
return anchor;
}
}
var instantiateObject = Instantiate(_prefabtoPlace, hit.pose.position, hit.pose.rotation);
//make sure the new GameObject has an ARanchor component
anchor = instantiateObject.GetComponent<ARAnchor>();
if (anchor == null)
{
anchor = instantiateObject.AddComponent<ARAnchor>();
}
return anchor;
}
}
输出信息到UI端
using System;
using System.Collections;
using System.Collections.Generic;
using UnityEngine;
using TMPro;
using UnityEngine.XR.ARFoundation;
public class PointCloudInfo : MonoBehaviour
{
//
private ARPointCloud _aRPointCloud;
//Reference to logging UI element in the canvas
public TMP_Text Log;
private void OnEnable()
{
//Subscribe to the event when point cloud changed
_aRPointCloud = GetComponent<ARPointCloud>();
_aRPointCloud.updated += OnPointedChanged;
}
private void OnDisable()
{
//Unsubscribe event when this element is disabled
_aRPointCloud.updated -= OnPointedChanged;
}
private void OnPointedChanged(ARPointCloudUpdatedEventArgs obj)
{
if (!_aRPointCloud.positions.HasValue || !_aRPointCloud.identifiers.HasValue || !_aRPointCloud.confidenceValues.HasValue) return;
var _positions = _aRPointCloud.positions.Value;
var _identifiers = _aRPointCloud.identifiers.Value;
var _confidence = _aRPointCloud.confidenceValues.Value;
if (_positions.Length == 0) return;
var logText = "Number of points: " + _positions.Length + "\nPoint info: x = "
+ _positions[0].x + ", y = " + _positions[0].y + ", z = " + _positions[0].z
+ ",\n Identifier = " + _identifiers[0] + ", Confidence = " + _confidence[0];
if (Log)
{
Log.text = logText;
}
else
{
Debug.Log(logText);
}
}
}