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    Class TrackedObject

    Provides common Property Variant functionality for a Unity object. You can inherit from this class to create custom object trackers. This shows how to create a UnityEngine.Localization.PropertyVariants.TrackedObjects to support the AudioSource component.

    [Serializable]
    [DisplayName("Audio Source")]
    [CustomTrackedObject(typeof(AudioSource), false)]
    public class TrackedAudioSource : TrackedObject
    {
    public override AsyncOperationHandle ApplyLocale(Locale variantLocale, Locale defaultLocale)
    {
        var audioClipProperty = GetTrackedProperty("m_audioClip");
        if (audioClipProperty == null)
            return default;
    
        // Check if the Asset is stored in an Asset Table
        if (audioClipProperty is LocalizedAssetProperty localizedAssetProperty &&
            localizedAssetProperty.LocalizedObject is LocalizedAudioClip localizedAudioClip)
        {
            localizedAudioClip.LocaleOverride = variantLocale;
            var loadHandle = localizedAudioClip.LoadAssetAsync();
            if (loadHandle.IsDone)
                AudioClipLoaded(loadHandle);
            else
            {
                loadHandle.Completed += AudioClipLoaded;
                return loadHandle;
            }
        }
        // Check if the Asset is stored locally
        else if (audioClipProperty is UnityObjectProperty localAssetProperty)
        {
            if (localAssetProperty.GetValue(variantLocale.Identifier, defaultLocale.Identifier, out var clip))
                SetAudioClip(clip as AudioClip);
        }
    
        return default;
    }
    
    void AudioClipLoaded(AsyncOperationHandle<AudioClip> loadHandle)
    {
        SetAudioClip(loadHandle.Result);
    }
    
    void SetAudioClip(AudioClip clip)
    {
        var source = (AudioSource)Target;
        source.Stop();
        source.clip = clip;
        if (clip != null)
            source.Play();
    }
    
    public override bool CanTrackProperty(string propertyPath)
    {
        // We only care about the Audio clip
        return propertyPath == "m_audioClip";
    }
    }

    Inheritance
    Object
    TrackedObject
    JsonSerializerTrackedObject
    TrackedMeshFilter
    TrackedTransform
    Namespace: UnityEngine.Localization.PropertyVariants.TrackedObjects
    Syntax
    [Serializable]
    public abstract class TrackedObject : ISerializationCallbackReceiver

    Properties

    Target

    The target that the variants will be applied to.

    Declaration
    public Object Target { get; set; }
    Property Value
    Type Description
    Object

    TrackedProperties

    The tracked properties for this object.

    Declaration
    public IList<ITrackedProperty> TrackedProperties { get; }
    Property Value
    Type Description
    IList<ITrackedProperty>

    Methods

    AddTrackedProperty(ITrackedProperty)

    Add a tracked property for this object.

    Declaration
    public virtual void AddTrackedProperty(ITrackedProperty trackedProperty)
    Parameters
    Type Name Description
    ITrackedProperty trackedProperty

    AddTrackedProperty<T>(String)

    Create and add a tracked property for this object.

    Declaration
    public T AddTrackedProperty<T>(string propertyPath)
        where T : ITrackedProperty, new()
    Parameters
    Type Name Description
    String propertyPath
    Returns
    Type Description
    T
    Type Parameters
    Name Description
    T

    ApplyLocale(Locale, Locale)

    Apply the TrackedProperties for variantLocale. If a value does not exist for this locale then the value for defaultLocale is used as a fallback.

    Declaration
    public abstract AsyncOperationHandle ApplyLocale(Locale variantLocale, Locale defaultLocale)
    Parameters
    Type Name Description
    Locale variantLocale

    The chosen variant to apply to Target.

    Locale defaultLocale

    The fallback Locale to use when a value does not exist for this variant.

    Returns
    Type Description
    AsyncOperationHandle

    CanTrackProperty(String)

    Can be used to reject certain properties.

    Declaration
    public virtual bool CanTrackProperty(string propertyPath)
    Parameters
    Type Name Description
    String propertyPath
    Returns
    Type Description
    Boolean

    CreateCustomTrackedProperty(String)

    Declaration
    public virtual ITrackedProperty CreateCustomTrackedProperty(string propertyPath)
    Parameters
    Type Name Description
    String propertyPath
    Returns
    Type Description
    ITrackedProperty

    GetTrackedProperty(String)

    Return the tracked property for the property path.

    Declaration
    public virtual ITrackedProperty GetTrackedProperty(string propertyPath)
    Parameters
    Type Name Description
    String propertyPath

    The serialized property path.

    Returns
    Type Description
    ITrackedProperty

    GetTrackedProperty<T>(String, Boolean)

    Return the tracked property for the property path.

    Declaration
    public T GetTrackedProperty<T>(string propertyPath, bool create = true)
        where T : ITrackedProperty, new()
    Parameters
    Type Name Description
    String propertyPath

    The serialized property path.

    Boolean create

    Specify whether to create a property if no existing property is found.

    Returns
    Type Description
    T
    Type Parameters
    Name Description
    T

    PostApplyTrackedProperties()

    Called when the variants have been applied to Target.

    Declaration
    protected virtual void PostApplyTrackedProperties()

    RemoveTrackedProperty(ITrackedProperty)

    Remove a tracked property for this object.

    Declaration
    public virtual bool RemoveTrackedProperty(ITrackedProperty trackedProperty)
    Parameters
    Type Name Description
    ITrackedProperty trackedProperty

    The tracked property to be removed.

    Returns
    Type Description
    Boolean

    Returns true if the value was removed; otherwise false.

    In This Article
    • Properties
      • Target
      • TrackedProperties
    • Methods
      • AddTrackedProperty(ITrackedProperty)
      • AddTrackedProperty<T>(String)
      • ApplyLocale(Locale, Locale)
      • CanTrackProperty(String)
      • CreateCustomTrackedProperty(String)
      • GetTrackedProperty(String)
      • GetTrackedProperty<T>(String, Boolean)
      • PostApplyTrackedProperties()
      • RemoveTrackedProperty(ITrackedProperty)
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