Unity 2018升级2020后XR报错error CS0619: ‘XRDevice.isPresent‘ is obsolete

error CS0619: 'XRDevice.isPresent' is obsolete: 'This is obsolete, and should no longer be used. Instead, find the active XRDisplaySubsystem and check that the running property is true (for details, see XRDevice.isPresent documentation).'

因为在2017版本后unity.Engine.VR就过时了，换成了XR，所以我们需要对一些项目维护进行对应的更改。网上查了很多资料，基本没有确切对应的解决方案，于是使用leap motion官方升级文档对比查看，解决方案如下：

public static bool IsXRDevicePresent() {#if UNITY_2020_1_OR_NEWERreturn XRSettings.isDeviceActive;#elif UNITY_2017_2_OR_NEWERreturn XRDevice.isPresent;#elsereturn VRDevice.isPresent;#endif}

我们可以直接使用XRSettings.isDeviceActive代替XRDevice.isPresent。

对应版本同上。

附所有有关XR的过时报错更改：对照上述参考

using System.Collections.Generic;
using UnityEngine;#if UNITY_2017_2_OR_NEWER
using UnityEngine.XR;
#else
using UnityEngine.VR;
#endifnamespace Leap.Unity {/// <summary>/// Wraps various (but not all) "XR" calls with Unity 5.6-supporting "VR" calls/// via #ifdefs./// </summary>public static class XRSupportUtil {#if UNITY_2019_2_OR_NEWERprivate static System.Collections.Generic.List<XRNodeState> nodeStates = new System.Collections.Generic.List<XRNodeState>();#endifpublic static bool IsXREnabled() {#if UNITY_2017_2_OR_NEWERreturn XRSettings.enabled;#elsereturn VRSettings.enabled;#endif}public static bool IsXRDevicePresent() {#if UNITY_2020_1_OR_NEWERreturn XRSettings.isDeviceActive;#elif UNITY_2017_2_OR_NEWERreturn XRDevice.isPresent;#elsereturn VRDevice.isPresent;#endif}static bool outputPresenceWarning = false;public static bool IsUserPresent(bool defaultPresence = true) {#if UNITY_2019_3_OR_NEWERvar devices = new List<InputDevice>();InputDevices.GetDevicesWithCharacteristics(InputDeviceCharacteristics.HeadMounted, devices);if (devices.Count == 0 && !outputPresenceWarning) {Debug.LogWarning("No head-mounted devices found. Possibly no HMD is available to the XR system.");outputPresenceWarning = true;}if (devices.Count != 0) {var device = devices[0];if (device.TryGetFeatureValue(CommonUsages.userPresence, out var userPresent)) {return userPresent;}}#elif UNITY_2017_2_OR_NEWERvar userPresence = XRDevice.userPresence;if (userPresence == UserPresenceState.Present) {return true;} else if (!outputPresenceWarning && userPresence == UserPresenceState.Unsupported) {Debug.LogWarning("XR UserPresenceState unsupported (XR support is probably disabled).");outputPresenceWarning = true;}#elseif (!outputPresenceWarning){Debug.LogWarning("XR UserPresenceState is only supported in 2017.2 and newer.");outputPresenceWarning = true;}#endifreturn defaultPresence;}public static Vector3 GetXRNodeCenterEyeLocalPosition() {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Vector3 position;foreach(XRNodeState state in nodeStates) {if(state.nodeType == XRNode.CenterEye &&state.TryGetPosition(out position)){ return position; }}return Vector3.zero;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalPosition(XRNode.CenterEye);#elsereturn InputTracking.GetLocalPosition(VRNode.CenterEye);#endif}public static Quaternion GetXRNodeCenterEyeLocalRotation() {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Quaternion rotation;foreach (XRNodeState state in nodeStates) {if (state.nodeType == XRNode.CenterEye &&state.TryGetRotation(out rotation)){ return rotation; }}return Quaternion.identity;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalRotation(XRNode.CenterEye);#elsereturn InputTracking.GetLocalRotation(VRNode.CenterEye);#endif}public static Vector3 GetXRNodeHeadLocalPosition() {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Vector3 position;foreach(XRNodeState state in nodeStates) {if(state.nodeType == XRNode.Head &&state.TryGetPosition(out position)){ return position; }}return Vector3.zero;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalPosition(XRNode.Head);#elsereturn InputTracking.GetLocalPosition(VRNode.Head);#endif}public static Quaternion GetXRNodeHeadLocalRotation() {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Quaternion rotation;foreach (XRNodeState state in nodeStates) {if (state.nodeType == XRNode.Head &&state.TryGetRotation(out rotation)){ return rotation; }}return Quaternion.identity;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalRotation(XRNode.Head);#elsereturn InputTracking.GetLocalRotation(VRNode.Head);#endif}public static Vector3 GetXRNodeLocalPosition(int node) {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Vector3 position;foreach(XRNodeState state in nodeStates) {if(state.nodeType == (XRNode)node &&state.TryGetPosition(out position)){ return position; }}return Vector3.zero;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalPosition((XRNode)node);#elsereturn InputTracking.GetLocalPosition((VRNode)node);#endif}public static Quaternion GetXRNodeLocalRotation(int node) {#if UNITY_2019_2_OR_NEWERInputTracking.GetNodeStates(nodeStates);Quaternion rotation;foreach (XRNodeState state in nodeStates) {if (state.nodeType == (XRNode)node &&state.TryGetRotation(out rotation)){ return rotation; }}return Quaternion.identity;#elif UNITY_2017_2_OR_NEWERreturn InputTracking.GetLocalRotation((XRNode)node);#elsereturn InputTracking.GetLocalRotation((VRNode)node);#endif}public static void Recenter() {#if UNITY_2019_3_OR_NEWERvar devices = new List<InputDevice>();InputDevices.GetDevicesWithCharacteristics(InputDeviceCharacteristics.HeadMounted, devices);if (devices.Count == 0) return;var hmdDevice = devices[0];#if !UNITY_2020_1_OR_NEWERif(hmdDevice.subsystem != null) {#endifhmdDevice.subsystem.TryRecenter();#if !UNITY_2020_1_OR_NEWER}else{#pragma warning disable 0618InputTracking.Recenter();#pragma warning restore 0618}#endif#elseInputTracking.Recenter();#endif}public static string GetLoadedDeviceName() {#if UNITY_2017_2_OR_NEWERreturn XRSettings.loadedDeviceName;#elsereturn VRSettings.loadedDeviceName;#endif}/// <summary> Returns whether there's a floor available. </summary>public static bool IsRoomScale() {#if UNITY_2019_3_OR_NEWERvar devices = new List<InputDevice>();InputDevices.GetDevicesWithCharacteristics(InputDeviceCharacteristics.HeadMounted, devices);if (devices.Count == 0) return false;var hmdDevice = devices[0];#if !UNITY_2020_1_OR_NEWERif(hmdDevice.subsystem != null) {#endifreturn hmdDevice.subsystem.GetTrackingOriginMode().HasFlag(TrackingOriginModeFlags.Floor);#if !UNITY_2020_1_OR_NEWER}else{#pragma warning disable 0618return XRDevice.GetTrackingSpaceType() == TrackingSpaceType.RoomScale;#pragma warning restore 0618}#endif#elif UNITY_2017_2_OR_NEWERreturn XRDevice.GetTrackingSpaceType() == TrackingSpaceType.RoomScale;#elsereturn VRDevice.GetTrackingSpaceType() == TrackingSpaceType.RoomScale;#endif}static List<Vector3> _boundaryPoints = new List<Vector3>();/// <summary> Returns whether the playspace is larger than 1m on its shortest side. </summary>public static bool IsLargePlayspace() {#if UNITY_2020_1_OR_NEWER // Oculus reports a floor centered space now...var devices = new List<InputDevice>();InputDevices.GetDevicesWithCharacteristics(InputDeviceCharacteristics.HeadMounted, devices);if (devices.Count == 0) return false;var hmdDevice = devices[0];hmdDevice.subsystem.TryGetBoundaryPoints(_boundaryPoints);Bounds playspaceSize = new Bounds();foreach(Vector3 boundaryPoint in _boundaryPoints) { playspaceSize.Encapsulate(boundaryPoint); }return playspaceSize.size.magnitude > 1f; // Playspace is greater than 1m on its shortest axis#elsereturn IsRoomScale();#endif}public static float GetGPUTime() {float gpuTime = 0f;#if UNITY_5_6_OR_NEWER#if UNITY_2017_2_OR_NEWERUnityEngine.XR.XRStats.TryGetGPUTimeLastFrame(out gpuTime);#elseUnityEngine.VR.VRStats.TryGetGPUTimeLastFrame(out gpuTime);#endif#elsegpuTime = UnityEngine.VR.VRStats.gpuTimeLastFrame;#endifreturn gpuTime;}}}

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Unity 2018升级2020后XR报错error CS0619: ‘XRDevice.isPresent‘ is obsolete

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