# Motion Artifact: [androidx.constraintlayout:constraintlayout-core](https://developer.android.com/jetpack/androidx/releases/constraintlayout) [View Source](https://cs.android.com/search?q=file:androidx/constraintlayout/core/motion/Motion.java+class:androidx.constraintlayout.core.motion.Motion) Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) *** ** * ** *** ``` public class Motion implements TypedValues ```
*** ** * ** *** Contains the picture of a view through a transition and is used to interpolate it. During a transition every view has a MotionController which drives its position. All parameter which affect a views motion are added to MotionController and then setup() builds out the splines that control the view. ## Summary | ### Constants | |---|---| | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_AS_CONFIGURED() = 4` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_BASIC() = 1` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_CARTESIAN() = 3` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_NONE() = 0` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_RECTANGLE() = 5` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_RELATIVE() = 2` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#DRAW_PATH_SCREEN() = 6` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#HORIZONTAL_PATH_X() = 2` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#HORIZONTAL_PATH_Y() = 3` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#PATH_PERCENT() = 0` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#PATH_PERPENDICULAR() = 1` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#ROTATION_LEFT() = 2` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#ROTATION_RIGHT() = 1` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#VERTICAL_PATH_X() = 4` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#VERTICAL_PATH_Y() = 5` | | ### Public fields | |---|---| | `https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#mId()` | | ### Public constructors | |---| | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#Motion(androidx.constraintlayout.core.motion.MotionWidget)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget view)` | | ### Public methods | |---|---| | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#addKey(androidx.constraintlayout.core.motion.key.MotionKey)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/key/MotionKey key)` | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#buildKeyFrames(float[],int[],int[])(float[] keyFrames, int[] mode, int[] pos)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#buildPath(float[],int)(float[] points, int pointCount)` Fills the array point with the center coordinates. point\[0\] is filled with the x coordinate of "time" 0.0 mPoints\[point.length-1\] is filled with the y coordinate of "time" 1.0 | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#buildRect(float,float[],int)(float p, float[] path, int offset)` | | `https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getAnimateRelativeTo()()` Returns the id of the view to move relative to. | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getCenter(double,float[],float[])(double p, float[] pos, float[] vel)` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getCenterX()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getCenterY()()` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getDpDt(float,float,float,float[])( float position, float locationX, float locationY, float[] mAnchorDpDt )` This returns the differential with respect to the animation layout position (Progress) of a point on the view (post layout effects are not computed) | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getDrawPath()()` | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getFinalHeight()()` get the width of the widget at the end of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getFinalWidth()()` get the width of the widget at the end of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getFinalX()()` get the left most position of the widget at the end of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getFinalY()()` get the top most position of the widget at the end of the movement. | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getId(java.lang.String)(https://developer.android.com/reference/java/lang/String.html name)` | | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionPaths` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getKeyFrame(int)(int i)` provides access to MotionPath objects | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getKeyFrameInfo(int,int[])(int type, int[] info)` Gets the keyFrames for the view controlled by this MotionController. | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getKeyFramePositions(int[],float[])(int[] type, float[] pos)` Get the keyFrames for the view controlled by this MotionController | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getMotionStagger()()` The values set in motion: { stagger: '2' } | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getStartHeight()()` get the width of the widget at the start of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getStartWidth()()` get the width of the widget at the start of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getStartX()()` get the left most position of the widget at the start of the movement. | | `float` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getStartY()()` get the top most position of the widget at the start of the movement. | | `int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getTransformPivotTarget()()` Get the view to pivot around | | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#getView()()` | | `boolean` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#interpolate(androidx.constraintlayout.core.motion.MotionWidget,float,long,androidx.constraintlayout.core.motion.utils.KeyCache)( https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget child, float globalPosition, long time, https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/KeyCache keyCache )` The main driver of interpolation | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setDrawPath(int)(int debugMode)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setEnd(androidx.constraintlayout.core.motion.MotionWidget)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget mw)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setIdString(java.lang.String)(https://developer.android.com/reference/java/lang/String.html stringId)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setPathMotionArc(int)(int arc)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setStaggerOffset(float)(float staggerOffset)` set the offset used in calculating stagger launches | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setStaggerScale(float)(float staggerScale)` Set stagger scale | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setStart(androidx.constraintlayout.core.motion.MotionWidget)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget mw)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setStartState(androidx.constraintlayout.core.motion.utils.ViewState,androidx.constraintlayout.core.motion.MotionWidget,int,int,int)( https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/ViewState rect, https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget v, int rotation, int preWidth, int preHeight )` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setTransformPivotTarget(int)(int transformPivotTarget)` Set a view to pivot around | | `boolean` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setValue(int,boolean)(int id, boolean value)` Used to set boolean values | | `boolean` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setValue(int,float)(int id, float value)` Used to set float values | | `boolean` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setValue(int,int)(int id, int value)` Used to set integer values | | `boolean` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setValue(int,java.lang.String)(int id, https://developer.android.com/reference/java/lang/String.html value)` Used to set String values | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setView(androidx.constraintlayout.core.motion.MotionWidget)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/MotionWidget view)` | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setup(int,int,float,long)( int parentWidth, int parentHeight, float transitionDuration, long currentTime )` Called after all TimePoints \&Cycles have been added; Spines are evaluated | | `void` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#setupRelative(androidx.constraintlayout.core.motion.Motion)(https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion motionController)` set up the motion to be relative to this other motionController | | `https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/Motion#toString()()` Debug string | | ### Inherited Constants | |---| | From [androidx.constraintlayout.core.motion.utils.TypedValues](https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues) |---|---| | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#BOOLEAN_MASK() = 1` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#FLOAT_MASK() = 4` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#INT_MASK() = 2` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#STRING_MASK() = 8` | | `static final https://developer.android.com/reference/java/lang/String.html` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#S_CUSTOM() = "CUSTOM"` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#TYPE_FRAME_POSITION() = 100` | | `static final int` | `https://developer.android.com/reference/androidx/constraintlayout/core/motion/utils/TypedValues#TYPE_TARGET() = 101` | | ## Constants ### DRAW_PATH_AS_CONFIGURED Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_AS_CONFIGURED = 4 ``` ### DRAW_PATH_BASIC Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_BASIC = 1 ``` ### DRAW_PATH_CARTESIAN Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_CARTESIAN = 3 ``` ### DRAW_PATH_NONE Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_NONE = 0 ``` ### DRAW_PATH_RECTANGLE Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_RECTANGLE = 5 ``` ### DRAW_PATH_RELATIVE Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_RELATIVE = 2 ``` ### DRAW_PATH_SCREEN Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int DRAW_PATH_SCREEN = 6 ``` ### HORIZONTAL_PATH_X Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int HORIZONTAL_PATH_X = 2 ``` ### HORIZONTAL_PATH_Y Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int HORIZONTAL_PATH_Y = 3 ``` ### PATH_PERCENT Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int PATH_PERCENT = 0 ``` ### PATH_PERPENDICULAR Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int PATH_PERPENDICULAR = 1 ``` ### ROTATION_LEFT Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int ROTATION_LEFT = 2 ``` ### ROTATION_RIGHT Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int ROTATION_RIGHT = 1 ``` ### VERTICAL_PATH_X Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int VERTICAL_PATH_X = 4 ``` ### VERTICAL_PATH_Y Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public static final int VERTICAL_PATH_Y = 5 ``` ## Public fields ### mId Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public String mId ``` ## Public constructors ### Motion Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public Motion(MotionWidget view) ``` ## Public methods ### addKey Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void addKey(MotionKey key) ``` ### buildKeyFrames Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int buildKeyFrames(float[] keyFrames, int[] mode, int[] pos) ``` ### buildPath Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void buildPath(float[] points, int pointCount) ``` Fills the array point with the center coordinates. point\[0\] is filled with the x coordinate of "time" 0.0 mPoints\[point.length-1\] is filled with the y coordinate of "time" 1.0 | Parameters | |---|---| | `float[] points` | array to fill (should be 2x the number of mPoints | ### buildRect Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void buildRect(float p, float[] path, int offset) ``` ### getAnimateRelativeTo Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public String getAnimateRelativeTo() ``` Returns the id of the view to move relative to. The position at the start and then end will be viewed relative to this view -1 is the return value if NOT in polar mode | Returns | |---|---| | `https://developer.android.com/reference/java/lang/String.html` | the view id of the view this is in polar mode to or -1 if not in polar | ### getCenter Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void getCenter(double p, float[] pos, float[] vel) ``` ### getCenterX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getCenterX() ``` ### getCenterY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getCenterY() ``` ### getDpDt Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void getDpDt(     float position,     float locationX,     float locationY,     float[] mAnchorDpDt ) ``` This returns the differential with respect to the animation layout position (Progress) of a point on the view (post layout effects are not computed) | Parameters | |---|---| | `float position` | position in time | | `float locationX` | the x location on the view (0 = left edge, 1 = right edge) | | `float locationY` | the y location on the view (0 = top, 1 = bottom) | | `float[] mAnchorDpDt` | returns the differential of the motion with respect to the position | ### getDrawPath Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getDrawPath() ``` ### getFinalHeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getFinalHeight() ``` get the width of the widget at the end of the movement. | Returns | |---|---| | `float` | the height at the end | ### getFinalWidth Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getFinalWidth() ``` get the width of the widget at the end of the movement. | Returns | |---|---| | `float` | the width at the end | ### getFinalX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getFinalX() ``` get the left most position of the widget at the end of the movement. | Returns | |---|---| | `float` | the left most position | ### getFinalY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getFinalY() ``` get the top most position of the widget at the end of the movement. Positive is down. | Returns | |---|---| | `float` | the top most position | ### getId Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getId(String name) ``` ### getKeyFrame Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public MotionPaths getKeyFrame(int i) ``` provides access to MotionPath objects ### getKeyFrameInfo Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getKeyFrameInfo(int type, int[] info) ``` Gets the keyFrames for the view controlled by this MotionController. The info data structure is of the form 0 length if your are at index i the \[i+len+1\] is the next entry 1 type 1=Attributes, 2=Position, 3=TimeCycle 4=Cycle 5=Trigger 2 position 3 x location 4 y location 5 ... length | Parameters | |---|---| | `int[] info` | is a data structure array of int that holds info on each keyframe | | Returns | |---|---| | `int` | Number of keyFrames found | ### getKeyFramePositions Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getKeyFramePositions(int[] type, float[] pos) ``` Get the keyFrames for the view controlled by this MotionController | Parameters | |---|---| | `int[] type` | is position(0-100) + 1000 \* mType(1=Attributes, 2=Position, 3=TimeCycle 4=Cycle 5=Trigger | | `float[] pos` | the x\&y position of the keyFrame along the path | | Returns | |---|---| | `int` | Number of keyFrames found | ### getMotionStagger Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getMotionStagger() ``` The values set in motion: { stagger: '2' } | Returns | |---|---| | `float` | value from motion: { stagger: ? } or NaN if not set | ### getStartHeight Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getStartHeight() ``` get the width of the widget at the start of the movement. | Returns | |---|---| | `float` | the height at the start | ### getStartWidth Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getStartWidth() ``` get the width of the widget at the start of the movement. | Returns | |---|---| | `float` | the width at the start | ### getStartX Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getStartX() ``` get the left most position of the widget at the start of the movement. | Returns | |---|---| | `float` | the left most position | ### getStartY Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public float getStartY() ``` get the top most position of the widget at the start of the movement. Positive is down. | Returns | |---|---| | `float` | the top most position | ### getTransformPivotTarget Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public int getTransformPivotTarget() ``` Get the view to pivot around | Returns | |---|---| | `int` | id of view or UNSET if not set | ### getView Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public MotionWidget getView() ``` ### interpolate Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public boolean interpolate(     MotionWidget child,     float globalPosition,     long time,     KeyCache keyCache ) ``` The main driver of interpolation | Returns | |---|---| | `boolean` | do you need to keep animating | ### setDrawPath Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setDrawPath(int debugMode) ``` ### setEnd Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setEnd(MotionWidget mw) ``` ### setIdString Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setIdString(String stringId) ``` ### setPathMotionArc Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setPathMotionArc(int arc) ``` ### setStaggerOffset Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setStaggerOffset(float staggerOffset) ``` set the offset used in calculating stagger launches | Parameters | |---|---| | `float staggerOffset` | fraction of progress before this controller runs | ### setStaggerScale Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setStaggerScale(float staggerScale) ``` Set stagger scale ### setStart Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setStart(MotionWidget mw) ``` ### setStartState Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setStartState(     ViewState rect,     MotionWidget v,     int rotation,     int preWidth,     int preHeight ) ``` ### setTransformPivotTarget Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setTransformPivotTarget(int transformPivotTarget) ``` Set a view to pivot around | Parameters | |---|---| | `int transformPivotTarget` | id of view | ### setValue Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public boolean setValue(int id, boolean value) ``` Used to set boolean values | Returns | |---|---| | `boolean` | true if it accepted the value | ### setValue Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public boolean setValue(int id, float value) ``` Used to set float values | Returns | |---|---| | `boolean` | true if it accepted the value | ### setValue Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public boolean setValue(int id, int value) ``` Used to set integer values | Returns | |---|---| | `boolean` | true if it accepted the value | ### setValue Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public boolean setValue(int id, String value) ``` Used to set String values | Returns | |---|---| | `boolean` | true if it accepted the value | ### setView Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setView(MotionWidget view) ``` ### setup Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setup(     int parentWidth,     int parentHeight,     float transitionDuration,     long currentTime ) ``` Called after all TimePoints \&Cycles have been added; Spines are evaluated ### setupRelative Added in [1.1.2](https://developer.android.com/jetpack/androidx/releases/constraintlayout#1.1.2) ``` public void setupRelative(Motion motionController) ``` set up the motion to be relative to this other motionController ### toString ``` public String toString() ``` Debug string