高通 Vuforia 最新6-2-10版本 API 动态加载、卸载识别库 闪光灯 对焦 翻转摄像头 动态更改识别数量等

高通 Vuforia 最新6-2-10版本 API 动态加载、卸载识别库 闪光灯 对焦 翻转摄像头 动态更改识别数量 获取识别库名称、路径等
总之标题要长，要醒目，为了赚金币

这两天整理了下高通最新的demo 对新版的函数整合了下，相关函数已经备注，有不对的地方大家留言相互交流下，不明白的可加QQ195754218

而且最近我一直在寻找能把动态创建的DataSet和对应的xml保存到本地方便下次加载的办法，如果有大佬知道求科普~不生感谢

话不多说上代码

using UnityEngine;using System.Collections;using System.Collections.Generic;using System.Linq;using System.IO;using Vuforia;/// <summary>/// 追踪功能设置类/// </summary>public class TrackableSettings : MonoBehaviour{    public const string Name = "TrackableSettings";    static TrackableSettings() { }    protected TrackableSettings() { }    protected static volatile TrackableSettings instance = null;    protected readonly object msyncRoot = new object();    protected static readonly object mstaticSyncRoot = new object();    public static TrackableSettings Instance    {        get        {            if (instance == null)            {                lock (mstaticSyncRoot)                {                    if (instance == null) instance = new GameObject(Name).AddComponent<TrackableSettings>();                }            }            return instance;        }    }    /// <summary>    /// 识别数据集所在的文件路径    /// </summary>    private string dataSetDirectoryPath = null;/// <summary>/// 已经激活的识别数据集/// </summary>    protected Dictionary<string, string> mCurrentActiveDataSets = new Dictionary<string, string>();    /// <summary>    /// 所有数据集对应的路径    /// </summary>    protected Dictionary<string, string> mCurrentAllDataSets = new Dictionary<string, string>();    /// <summary>    /// 是否使用本地内置识别库    /// </summary>    public bool bLocal = false;    /// <summary>    /// 扩展追踪是否开启    /// </summary>    protected bool mExtTrackingEnabled = false;    private void Awake()    {        //if (m_instance == null) m_instance = this;        //if (gameObject.name == "GameObject") gameObject.name = Name;    }    private void Start()    {        Initialize();    }    private void Initialize()    {        dataSetDirectoryPath = Application.persistentDataPath + "/" + "DataDirectory"+"/";        if (!Directory.Exists(dataSetDirectoryPath))        {            Directory.CreateDirectory(dataSetDirectoryPath);        }    }    /// <summary>    /// 获得扩展追踪开启状态    /// </summary>    /// <returns></returns>    public bool IsExtendedTrackingEnabled()    {        return mExtTrackingEnabled;    }    /// <summary>    /// 开启、关闭扩展追踪模式    /// </summary>    /// <param name="extTrackingEnabled">是否开启</param>    public virtual void SwitchExtendedTracking(bool extTrackingEnabled)    {        //返回可以访问当前所有跟踪的状态管理器实例。        StateManager stateManager = TrackerManager.Instance.GetStateManager();        // 我们遍历所有trackablebehaviours启动或停止扩展跟踪他们所代表的目标。        bool success = true;        foreach (var tb in stateManager.GetTrackableBehaviours())        {            if (tb is ImageTargetBehaviour)            {                ImageTargetBehaviour itb = tb as ImageTargetBehaviour;                if (extTrackingEnabled)                {                    if (!itb.ImageTarget.StartExtendedTracking())                    {                        success = false;                        Debug.LogError("扩展跟踪开始失败，对应目标： " + itb.TrackableName);                    }                }                else                {                    itb.ImageTarget.StopExtendedTracking();                }            }            else if (tb is MultiTargetBehaviour)            {                MultiTargetBehaviour mtb = tb as MultiTargetBehaviour;                if (extTrackingEnabled)                {                    if (!mtb.MultiTarget.StartExtendedTracking())                    {                        success = false;                        Debug.LogError("Failed to start Extended Tracking on Target " + mtb.TrackableName);                    }                }                else                {                    mtb.MultiTarget.StopExtendedTracking();                }            }            else if (tb is CylinderTargetBehaviour)            {                CylinderTargetBehaviour ctb = tb as CylinderTargetBehaviour;                if (extTrackingEnabled)                {                    if (!ctb.CylinderTarget.StartExtendedTracking())                    {                        success = false;                        Debug.LogError("Failed to start Extended Tracking on Target " + ctb.TrackableName);                    }                }                else                {                    ctb.CylinderTarget.StopExtendedTracking();                }            }            else if (tb is ObjectTargetBehaviour)            {                ObjectTargetBehaviour otb = tb as ObjectTargetBehaviour;                if (extTrackingEnabled)                {                    if (!otb.ObjectTarget.StartExtendedTracking())                    {                        success = false;                        Debug.LogError("Failed to start Extended Tracking on Target " + otb.TrackableName);                    }                }                else                {                    otb.ObjectTarget.StopExtendedTracking();                }            }            else if (tb is VuMarkBehaviour)            {                VuMarkBehaviour vmb = tb as VuMarkBehaviour;                if (extTrackingEnabled)                {                    if (!vmb.VuMarkTemplate.StartExtendedTracking())                    {                        success = false;                        Debug.LogError("Failed to start Extended Tracking on Target " + vmb.TrackableName);                    }                }                else                {                    vmb.VuMarkTemplate.StopExtendedTracking();                }            }        }        mExtTrackingEnabled = success && extTrackingEnabled;    }    /// <summary>    /// 获取当前激活识别库名称列表    /// </summary>    /// <returns></returns>    public List<string> GetActiveDatasetNameList()    {        ObjectTracker tracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        List<DataSet> activeDataSets = tracker.GetActiveDataSets().ToList();        List<string> tempList = new List<string>();        for (int i = 0 ; i < activeDataSets.Count ; i++)        {            string datasetPath = activeDataSets.ElementAt(i).Path;            Debug.Log("datasetPath:" + datasetPath);            string datasetName = datasetPath.Substring(datasetPath.LastIndexOf("/") + 1);            Debug.Log("datasetName:" + datasetName);            tempList.Add(datasetName.TrimEnd(".xml".ToCharArray()));        }        return tempList;    }    /// <summary>    /// 激活指定的识别数据集    /// </summary>    /// <param name="datasetName">数据集名称或绝对路径</param>    public virtual void ActivateDataSet(string datasetName)    {        if (mCurrentActiveDataSets.ContainsKey(datasetName))        {            Debug.Log(string.Format("要激活的识别库:{0}已经加载", datasetName));            return;        }         // objecttracker跟踪包含在数据集，提供了用于创建和方法的激活数据。        ObjectTracker objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        IEnumerable<DataSet> datasets = objectTracker.GetDataSets();        IEnumerable<DataSet> activeDataSets = objectTracker.GetActiveDataSets();        List<DataSet> activeDataSetsToBeRemoved = activeDataSets.ToList();        // 1. 循环遍历所有的活动数据集并禁用它们        foreach (DataSet ads in activeDataSetsToBeRemoved)        {            objectTracker.DeactivateDataSet(ads);        }        // 在ObjectTracker运行时，不应该对数据集进行交换        // 2. 所以首先要关闭tracker        objectTracker.Stop();        // 3. 然后，查找新数据集，如果存在，激活它        foreach (DataSet ds in datasets)        {            if (ds.Path.Contains(datasetName))            {                objectTracker.ActivateDataSet(ds);                mCurrentActiveDataSets.Add(datasetName, ds.Path);            }        }        // 4. 最后重启traker.        objectTracker.Start();    }    /// <summary>    /// 关闭指定识别数据集    /// </summary>    /// <param name="datasetName">数据集名称或绝对路径</param>    public virtual void DeactivateDateset(string datasetName)    {        if (!mCurrentActiveDataSets.ContainsKey(datasetName))        {            Debug.Log(string.Format("要关闭的识别库:{0}不存在", datasetName));            return;        }        ObjectTracker objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        IEnumerable<DataSet> datasets = objectTracker.GetDataSets();        IEnumerable<DataSet> activeDataSets = objectTracker.GetActiveDataSets();        List<DataSet> activeDataSetsToBeRemoved = activeDataSets.ToList();        List<DataSet> dataSetsToBeActive = new List<DataSet>();        foreach (DataSet ads in activeDataSetsToBeRemoved)        {            if (!ads.Path.Contains(datasetName))            {                dataSetsToBeActive.Add(ads);            }            objectTracker.DeactivateDataSet(ads);        }        objectTracker.Stop();        foreach (DataSet ds in dataSetsToBeActive)        {            objectTracker.ActivateDataSet(ds);        }        mCurrentActiveDataSets.Remove(datasetName);        objectTracker.Start();    }    /// <summary>    /// 载入识别数据集    /// </summary>    /// <param name="DataSetName">数据集名称</param>    /// <param name="Local">是否是本地识别数据集</param>    public virtual void LoadDataSet(string DataSetName, bool Local = true)    {        ObjectTracker objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        objectTracker.Stop();        bool bLoadDataSet = false;        DataSet mDataSet = null;        if (VuforiaRuntimeUtilities.IsVuforiaEnabled())        {            objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();            mDataSet = objectTracker.CreateDataSet();            if (!Local)            {                bLoadDataSet = mDataSet.Load(dataSetDirectoryPath+DataSetName+".xml", VuforiaUnity.StorageType.STORAGE_ABSOLUTE);//绝对路径 一般用来加载网络下载的识别库（dat和xml文件）              }            else            {                bLoadDataSet = mDataSet.Load(DataSetName);//本地预制的识别库              }        }        if (bLoadDataSet)        {            mCurrentAllDataSets.Add(DataSetName, mDataSet.Path);            UpdateImageTarget();            Debug.Log("加载识别数据库成功并激活");            if (objectTracker.ActivateDataSet(mDataSet))            {                mCurrentActiveDataSets.Add(DataSetName, mDataSet.Path);            }            else            {                Debug.Log(DataSetName + "激活失败");            }        }        else        {            Debug.Log("加载识别数据库失败");        }        CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_TRIGGERAUTO);        CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);        objectTracker.Start();//开启识别器 （可以理解为摄像头）      }    /// <summary>    /// 更新ImageTarget上的信息    /// </summary>   public virtual void UpdateImageTarget()    {        ImageTargetBehaviour[] m_ImageTargetBehaviours = GameObject.FindObjectsOfType<ImageTargetBehaviour>();        for (int i = 0 ; i < m_ImageTargetBehaviours.Length ; i++)        {            ImageTargetBehaviour imageTargetBehaviour = m_ImageTargetBehaviours[i];            imageTargetBehaviour.name = m_ImageTargetBehaviours[i].ImageTarget.Name + "Target";            imageTargetBehaviour.gameObject.AddComponent<DefaultTrackableEventHandler>();            imageTargetBehaviour.gameObject.AddComponent<TurnOffBehaviour>();        }    }    /// <summary>    /// 卸载所有识别数据集（识别库）    /// </summary>    public virtual void UnLoadAllDataSet()    {        ObjectTracker objectTracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        bool isVuforiaEnabled = VuforiaRuntimeUtilities.IsVuforiaEnabled();        if (isVuforiaEnabled)        {            //1. 关闭跟踪器            objectTracker.Stop();            //获取对应数据集合集（和激活数据集写法略有不同）            IEnumerable<DataSet> dataSets = objectTracker.GetActiveDataSets();            IEnumerator<DataSet> dEnumerator = dataSets.GetEnumerator();            List<DataSet> listDataSet = new List<DataSet>();            while (dEnumerator.MoveNext())            {                listDataSet.Add(dEnumerator.Current);            }            //关闭每一个数据集            for (int i = 0 ; i < listDataSet.Count ; i++)            {                Debug.Log("关闭对应数据集：" + listDataSet[i].Path);                objectTracker.DeactivateDataSet(listDataSet[i]);            }            for (int i = 0 ; i < listDataSet.Count ; i++)            {                Debug.Log("关闭对应数据集：" + listDataSet[i].Path);                objectTracker.DestroyDataSet(listDataSet[i], false);            }            //管理所有可跟踪行为的状态            StateManager stateManager = TrackerManager.Instance.GetStateManager();            //ImageTargetBehaviour[] ImageTargetBehaviours = GameObject.FindObjectsOfType<ImageTargetBehaviour>();            IEnumerable<TrackableBehaviour> IETrackableBehaviours = stateManager.GetTrackableBehaviours();            //销毁对应创建的ImageTarget跟踪具体行为（就是在imagetarget上设置的参数）和销毁对应的GameObject            foreach (var tb in IETrackableBehaviours)            {                stateManager.DestroyTrackableBehavioursForTrackable(tb.Trackable, true);            }            objectTracker.DestroyAllDataSets(true);            Debug.Log("销毁识别数据成功");            mCurrentActiveDataSets.Clear();            mCurrentAllDataSets.Clear();        }        else        {            Debug.Log("销毁数据失败");        }    }    /// <summary>    /// 设置同时识别Image的个数    /// </summary>    /// <param name="TrackedCount"></param>    public virtual void SetTrackedImageCount(int TrackedCount)    {        VuforiaUnity.SetHint(VuforiaUnity.VuforiaHint.HINT_MAX_SIMULTANEOUS_IMAGE_TARGETS, TrackedCount);    }    /// <summary>    /// 设置同时识别3D物体的个数    /// </summary>    /// <param name="TrackedCount"></param>    public virtual void SetTrackedObjectCount(int TrackedCount)    {        VuforiaUnity.SetHint(VuforiaUnity.VuforiaHint.HINT_MAX_SIMULTANEOUS_OBJECT_TARGETS, TrackedCount);    }}

using UnityEngine;using Vuforia;/// <summary>///帧率设置类/// </summary>public class FrameRateSettings : MonoBehaviour{    public const string Name = "FrameRateSettings";    static FrameRateSettings() { }    protected FrameRateSettings() { }    protected static volatile FrameRateSettings m_instance = null;    protected readonly object m_syncRoot = new object();    protected static readonly object m_staticSyncRoot = new object();    public static FrameRateSettings Instance    {        get        {            if (m_instance == null)            {                lock (m_staticSyncRoot)                {                    if (m_instance == null) m_instance = new GameObject(Name).AddComponent<FrameRateSettings>();                }            }            return m_instance;        }        //set { m_instance = value; }    }    void Awake()    {        if (m_instance == null) m_instance = this;        if (gameObject.name == "GameObject") gameObject.name = Name;    }    void Start()    {        VuforiaARController.Instance.RegisterVuforiaStartedCallback(OnVuforiaStarted);    }    /// <summary>    /// 高通全面启动的帧率设置回调    /// </summary>    private void OnVuforiaStarted()    {        //查询在unity中推荐的帧率（默认 AR或VR  省电 高帧数 四种模式）        int targetFps = VuforiaRenderer.Instance.GetRecommendedFps(VuforiaRenderer.FpsHint.NONE);        /*默认情况下，我们使用application.targetframerate设置推荐的帧速率。         谷歌纸板不使用垂直同步，和OVR明确禁用它。如果开发商         使用VSYNC的质量设置，他们也应该把他们的qualitysettings.vsynccount           根据上面返回的值。         例如：如果物体的FPS > 50 > vsynccount = 1；其他vsynccount = 2；        */        if (Application.targetFrameRate != targetFps)        {            Debug.Log("Setting frame rate to " + targetFps + "fps");            Application.targetFrameRate = targetFps;        }    }}

using UnityEngine;using System.Collections;using Vuforia;/// <summary>/// 摄像机功能设置类/// </summary>public class CameraSettings : MonoBehaviour{    public const string Name = "CameraSettings";    static CameraSettings() { }    protected CameraSettings() { }    protected static volatile CameraSettings m_instance = null;    protected readonly object m_syncRoot = new object();    protected static readonly object m_staticSyncRoot = new object();    public static CameraSettings Instance    {        get        {            if (m_instance == null)            {                lock (m_staticSyncRoot)                {                    if (m_instance == null) m_instance = new GameObject(Name).AddComponent<CameraSettings>();                }            }            return m_instance;        }        //set { m_instance = value; }    }    private bool mVuforiaStarted = false;    private bool mAutofocusEnabled = true;    private bool mFlashTorchEnabled = false;    private CameraDevice.CameraDirection mActiveDirection = CameraDevice.CameraDirection.CAMERA_DEFAULT;    void Awake()    {        if (m_instance == null) m_instance = this;        if (gameObject.name == "GameObject") gameObject.name = Name;    }    void Start()    {        var vuforia = VuforiaARController.Instance;        //vuforia已经全面启动回调，包括相机和跟踪器。可以注册多个回调函数        vuforia.RegisterVuforiaStartedCallback(OnVuforiaStarted);        //停止和恢复的回调，这个是回复后重新让摄像机对焦（对应状态自动传入对应的bool值）        vuforia.RegisterOnPauseCallback(OnPaused);    }    private void OnVuforiaStarted()    {        mVuforiaStarted = true;        //开启自动对焦        SwitchAutofocus(true);    }    private void OnPaused(bool paused)    {        bool appResumed = !paused;        if (appResumed && mVuforiaStarted)        {            // 恢复原来的对焦方式            if (mAutofocusEnabled)                CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);            else                CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_NORMAL);        }        else        {            //闪光灯状态更改 因为闪光灯会自动被操作系统关闭            mFlashTorchEnabled = false;        }    }    public bool IsFlashTorchEnabled()    {        return mFlashTorchEnabled;    }    /// <summary>    /// 闪光灯开关    /// </summary>    /// <param name="ON">是否开启闪光灯</param>    public virtual void SwitchFlashTorch(bool ON)    {        if (CameraDevice.Instance.SetFlashTorchMode(ON))        {            Debug.Log("成功开启闪光灯 " + ON);            mFlashTorchEnabled = ON;        }        else        {            Debug.Log("开启闪光灯失败 " + ON);            mFlashTorchEnabled = false;        }    }    public virtual bool IsAutofocusEnabled()    {        return mAutofocusEnabled;    }    /// <summary>    /// 是否开启自动对焦    /// </summary>    /// <param name="ON">是否开启自动对焦</param>    public virtual void SwitchAutofocus(bool ON)    {        if (ON)        {            if (CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO))            {                Debug.Log("成功开启连续对焦");                mAutofocusEnabled = true;            }            else            {                // Fallback to normal focus mode                Debug.Log("未能启用连续自动对焦，切换到正常对焦模式");                mAutofocusEnabled = false;                CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_NORMAL);            }        }        else        {            Debug.Log("禁用连续自动对焦（启用正常对焦模式）.");            mAutofocusEnabled = false;            CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_NORMAL);        }    }    /// <summary>    /// 强制触发一次对焦    /// </summary>    public virtual void TriggerAutofocusEvent()    {        CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_TRIGGERAUTO);        // 恢复到原来的对焦模式        StartCoroutine(RestoreOriginalFocusMode());    }    private IEnumerator RestoreOriginalFocusMode()    {        yield return new WaitForSeconds(1.5f);        if (mAutofocusEnabled)            CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_CONTINUOUSAUTO);        else            CameraDevice.Instance.SetFocusMode(CameraDevice.FocusMode.FOCUS_MODE_NORMAL);    }    /// <summary>    /// 前后摄像机调换    /// </summary>    /// <param name="camDir">摄像机方向</param>    public virtual void SelectCamera(CameraDevice.CameraDirection camDir)    {        if (RestartCamera(camDir))        {            mActiveDirection = camDir;            // Upon camera restart, flash is turned off            mFlashTorchEnabled = false;        }    }    /// <summary>    /// 转换摄像机需要把原来的摄像机状态关掉卸载然后重新初始化    /// </summary>    /// <param name="direction">摄像机方向</param>    /// <returns></returns>    public virtual bool RestartCamera(CameraDevice.CameraDirection direction)    {        ObjectTracker tracker = TrackerManager.Instance.GetTracker<ObjectTracker>();        if (tracker != null)            tracker.Stop();        CameraDevice.Instance.Stop();        CameraDevice.Instance.Deinit();        if (!CameraDevice.Instance.Init(direction))        {            Debug.Log("初始化失败，指定的方向为: " + direction.ToString());            return false;        }        if (!CameraDevice.Instance.Start())        {            Debug.Log("摄像机启动失败，指定的方向为: " + direction.ToString());            return false;        }        if (tracker != null)        {            if (!tracker.Start())            {                Debug.Log("Tracker重新启动失败");                return false;            }        }        return true;    }    /// <summary>    /// 在IOS上翻转摄像头会出现摄像头上下颠倒的情况，在CameraDevice.Instance.Start()后调用次函数，反之忽略即可    /// </summary>    /// <returns></returns>    IEnumerator Refresh()    {        yield return new WaitForEndOfFrame();        Camera.main.transform.localEulerAngles = new Vector3(0, 0, 180.0f);    }    /// <summary>    /// 是否为前置摄像头    /// </summary>    /// <returns></returns>    public virtual bool IsFrontCameraActive()    {        return (mActiveDirection == CameraDevice.CameraDirection.CAMERA_FRONT);    }}