# androidx.constraintlayout.core.motion.key

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## Classes

|---|---|
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionConstraintSet` |   |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKey` | Base class in an element in a KeyFrame |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKeyAttributes` |   |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKeyCycle` |   |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKeyPosition` |   |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKeyTimeCycle` |   |
| `https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKeyTrigger` |   |