Can't select clip or track using C# Selection.activeObject

I tried using the code posted by @seant_unity here but I guess some things have changed in the last 2.3 years

The object is selected and there is something there - debug.log prints out "Hello there" but does not continue through the next if condition.

I'm really after the track object - I'd like to add an animation/custom clip to the selected track. I'm hoping it will be a relatively easy step from selecting the clip to selecting the track.

Please let me know if I can provide any additional info.

Code (CSharp):

1. var obj = UnityEditor.Selection.activeObject;
2. if (obj != null)
3. {
4.     Debug.Log("Hello there"); // this works
5.  
6.     var fi = obj.GetType().GetField("m_Item", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);
7.     if (fi != null)
8.     {
9.         Debug.Log("You are a bold one");
10.  
11.         var clip = fi.GetValue(obj) as TimelineClip;
12.         if (clip != null)
13.             Debug.Log(clip.displayName);
14.  
15.         //var track = fi.GetValue(obj) as AnimationTrack;
16.         //if (track != null)
17.         //    Debug.Log(track.name);
18.  
19.     }
20. }

 

Thanks very much @seant_unity. Works perfectly. I can select a clip in a track and then click a button in the editor to add an curve editable clip. Two click bliss!

For the two click animators of the future (before 2019.2):

Code (CSharp):

1. if (GUILayout.Button("Add Clip to Selected Track"))
2. {
3.     AnimationTrack theAnimationTrack;
4.     TimelineClip theAnimationClip;
5.     AnimationCurve curve;
6.  
7.     var obj = UnityEditor.Selection.activeObject;
8.     if (obj != null)
9.     {
10.  
11.         var fi = obj.GetType().GetField("m_Clip", BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.FlattenHierarchy);
12.         if (fi != null)
13.         {
14.  
15.             var clip = fi.GetValue(obj) as TimelineClip;
16.             if (clip != null)
17.                 Debug.Log(clip.displayName);
18.                 Debug.Log(clip.parentTrack.name);
19.  
20.                 theAnimationTrack = clip.parentTrack as AnimationTrack;
21.  
22.                 var d = theAnimationTrack.duration;
23.                 theAnimationClip = theAnimationTrack.CreateRecordableClip("ComingForwardClip");
24.                 theAnimationClip.start = d;
25.  
26.                 theAnimationClip.duration = 20;
27.                 AnimationPlayableAsset animationPlayableAsset = theAnimationClip.asset as AnimationPlayableAsset;
28.                 Keyframe[] keys;
29.                 keys = new Keyframe[3];
30.                 keys[0] = new Keyframe(0.0f, 2.0f);
31.                 keys[1] = new Keyframe(1.0f, 0.0f);
32.                 keys[2] = new Keyframe(2.0f, -1.0f);
33.                 curve = new AnimationCurve(keys);
34.  
35.                 typeof(TimelineClip).GetMethod("AllocateAnimatedParameterCurves", BindingFlags.NonPublic | BindingFlags.Instance).Invoke(theAnimationClip, new object[] { });
36.                 animationPlayableAsset.clip.SetCurve("", typeof(Transform), "localPosition.z", curve);
37.  
38.                 AssetDatabase.SaveAssets();
39.                 AssetDatabase.Refresh();
40.         }
41.     }
42. }