KeyAttributes

Added in 2.2.0

Kotlin |Java

public class KeyAttributes extends Key

java.lang.Object
↳	androidx.constraintlayout.motion.widget.Key
	↳	androidx.constraintlayout.motion.widget.KeyAttributes

Defines container for a key frame of for storing KeyAttributes. KeyAttributes change post layout values of a view.

Summary

Constants
`static final int`	`KEY_TYPE = 1`

Public constructors
`KeyAttributes()`

Public methods
`void`	`addValues(HashMap<String, ViewSpline> splines)` Defines method to add a a view to splines derived form this key frame.
`Key`	`clone()` Clone this KeyAttributes
`Key`	`copy(Key src)` Copy the key
`void`	`getAttributeNames(HashSet<String> attributes)`
`void`	`load(Context context, AttributeSet attrs)`
`void`	`setInterpolation(HashMap<String, Integer> interpolation)` create the interpolations associated with this KeyAttribute
`void`	`setValue(String tag, Object value)` Set the value associated with this tag

`static final String`	`ALPHA = "alpha"`
`static final String`	`CURVEFIT = "curveFit"`
`static final String`	`CUSTOM = "CUSTOM"`
`static final String`	`ELEVATION = "elevation"`
`static final String`	`MOTIONPROGRESS = "motionProgress"`
`static final String`	`PIVOT_X = "transformPivotX"`
`static final String`	`PIVOT_Y = "transformPivotY"`
`static final String`	`PROGRESS = "progress"`
`static final String`	`ROTATION = "rotation"`
`static final String`	`ROTATION_X = "rotationX"`
`static final String`	`ROTATION_Y = "rotationY"`
`static final String`	`SCALE_X = "scaleX"`
`static final String`	`SCALE_Y = "scaleY"`
`static final String`	`TRANSITIONEASING = "transitionEasing"`
`static final String`	`TRANSITION_PATH_ROTATE = "transitionPathRotate"`
`static final String`	`TRANSLATION_X = "translationX"`
`static final String`	`TRANSLATION_Y = "translationY"`
`static final String`	`TRANSLATION_Z = "translationZ"`
`static final String`	`VISIBILITY = "visibility"`
`static final String`	`WAVE_OFFSET = "waveOffset"`
`static final String`	`WAVE_PERIOD = "wavePeriod"`
`static final String`	`WAVE_PHASE = "wavePhase"`
`static final String`	`WAVE_VARIES_BY = "waveVariesBy"`

`static int`	`UNSET`
`int`	`mType`

`int`	`getFramePosition()` Gets the current frame position
`void`	`setFramePosition(int pos)` sets the frame position
`Key`	`setViewId(int id)` set the id of the view

Added in 2.2.0

public static final int KEY_TYPE = 1

Added in 2.2.0

public KeyAttributes()

Added in 2.2.0

public void addValues(HashMap<String, ViewSpline> splines)

Defines method to add a a view to splines derived form this key frame. The values are written to the spline

Parameters
`HashMap<String, ViewSpline> splines`	splines to write values to

Added in 2.2.0

public Key clone()

Clone this KeyAttributes

Returns
`Key`

public Key copy(Key src)

Copy the key

Parameters
`Key src`	to be copied

Returns
`Key`	self

Added in 2.2.0

public void getAttributeNames(HashSet<String> attributes)

Added in 2.2.0

public void load(Context context, AttributeSet attrs)

public void setInterpolation(HashMap<String, Integer> interpolation)

create the interpolations associated with this KeyAttribute

Parameters
`HashMap<String, Integer> interpolation`	will be added to with keyAttributes

Added in 2.2.0

public void setValue(String tag, Object value)

Set the value associated with this tag

Parameters
`String tag`
`Object value`