MotionKey

Artifact: androidx.constraintlayout:constraintlayout-core

Added in 1.1.1

Kotlin |Java

public abstract class MotionKey implements TypedValues

Known direct subclasses

MotionKeyAttributes, MotionKeyCycle, MotionKeyPosition, MotionKeyTimeCycle, MotionKeyTrigger

`MotionKeyAttributes`
`MotionKeyCycle`
`MotionKeyPosition`
`MotionKeyTimeCycle`
`MotionKeyTrigger`

Base class in an element in a KeyFrame

Summary

Constants
`static final String`	`ALPHA = "alpha"`
`static final String`	`CUSTOM = "CUSTOM"`
`static final String`	`ELEVATION = "elevation"`
`static final String`	`ROTATION = "rotationZ"`
`static final String`	`ROTATION_X = "rotationX"`
`static final String`	`SCALE_X = "scaleX"`
`static final String`	`SCALE_Y = "scaleY"`
`static final String`	`TRANSITION_PATH_ROTATE = "transitionPathRotate"`
`static final String`	`TRANSLATION_X = "translationX"`
`static final String`	`TRANSLATION_Y = "translationY"`
`static final String`	`VISIBILITY = "visibility"`

Public fields
`static int`	`UNSET`
`HashMap<String, CustomVariable>`	`mCustom`
`int`	`mFramePosition`
`int`	`mType`

Public constructors
`MotionKey()`

Public methods
`abstract void`	`addValues(HashMap<String, SplineSet> splines)` Defines method to add a a view to splines derived form this key frame.
`abstract MotionKey`	`clone()`
`MotionKey`	`copy(MotionKey src)`
`abstract void`	`getAttributeNames(HashSet<String> attributes)`
`int`	`getFramePosition()` Gets the current frame position
`void`	`setCustomAttribute(String name, int type, boolean value)`
`void`	`setCustomAttribute(String name, int type, float value)`
`void`	`setCustomAttribute(String name, int type, int value)`
`void`	`setCustomAttribute(String name, int type, String value)`
`void`	`setFramePosition(int pos)` sets the frame position
`void`	`setInterpolation(HashMap<String, Integer> interpolation)` Key frame can specify the type of interpolation it wants on various attributes For each string it set it to -1, CurveFit.LINEAR or CurveFit.SPLINE
`boolean`	`setValue(int type, boolean value)` Used to set boolean values
`boolean`	`setValue(int type, float value)` Used to set float values
`boolean`	`setValue(int type, int value)` Used to set integer values
`boolean`	`setValue(int type, String value)` Used to set String values
`MotionKey`	`setViewId(int id)`

Inherited Constants

From androidx.constraintlayout.core.motion.utils.TypedValues

`static final int`	`BOOLEAN_MASK = 1`
`static final int`	`FLOAT_MASK = 4`
`static final int`	`INT_MASK = 2`
`static final int`	`STRING_MASK = 8`
`static final String`	`S_CUSTOM = "CUSTOM"`
`static final int`	`TYPE_FRAME_POSITION = 100`
`static final int`	`TYPE_TARGET = 101`

Inherited methods

From androidx.constraintlayout.core.motion.utils.TypedValues

abstract int

getId(String name)

Constants

ALPHA

Added in 1.1.1

public static final String ALPHA = "alpha"

CUSTOM

Added in 1.1.1

public static final String CUSTOM = "CUSTOM"

ELEVATION

Added in 1.1.1

public static final String ELEVATION = "elevation"

ROTATION

Added in 1.1.1

public static final String ROTATION = "rotationZ"

ROTATION_X

Added in 1.1.1

public static final String ROTATION_X = "rotationX"

SCALE_X

Added in 1.1.1

public static final String SCALE_X = "scaleX"

SCALE_Y

Added in 1.1.1

public static final String SCALE_Y = "scaleY"

TRANSITION_PATH_ROTATE

Added in 1.1.1

public static final String TRANSITION_PATH_ROTATE = "transitionPathRotate"

TRANSLATION_X

Added in 1.1.1

public static final String TRANSLATION_X = "translationX"

TRANSLATION_Y

Added in 1.1.1

public static final String TRANSLATION_Y = "translationY"

VISIBILITY

Added in 1.1.1

public static final String VISIBILITY = "visibility"

Public fields

UNSET

Added in 1.1.1

public static int UNSET

mCustom

Added in 1.1.1

public HashMap<String, CustomVariable> mCustom

mFramePosition

Added in 1.1.1

public int mFramePosition

mType

Added in 1.1.1

public int mType

Public constructors

MotionKey

Added in 1.1.1

public MotionKey()

Public methods

addValues

Added in 1.1.1

public abstract void addValues(HashMap<String, SplineSet> 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, SplineSet> splines`	splines to write values to

clone

Added in 1.1.1

public abstract MotionKey clone()

copy

Added in 1.1.1

public MotionKey copy(MotionKey src)

getAttributeNames

Added in 1.1.1

public abstract void getAttributeNames(HashSet<String> attributes)

getFramePosition

Added in 1.1.1

public int getFramePosition()

Gets the current frame position

setCustomAttribute

Added in 1.1.1

public void setCustomAttribute(String name, int type, boolean value)

setCustomAttribute

Added in 1.1.1

public void setCustomAttribute(String name, int type, float value)

setCustomAttribute

Added in 1.1.1

public void setCustomAttribute(String name, int type, int value)

setCustomAttribute

Added in 1.1.1

public void setCustomAttribute(String name, int type, String value)

setFramePosition

Added in 1.1.1

public void setFramePosition(int pos)

sets the frame position

setInterpolation

Added in 1.1.1

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

Key frame can specify the type of interpolation it wants on various attributes For each string it set it to -1, CurveFit.LINEAR or CurveFit.SPLINE

setValue

Added in 1.1.1

public boolean setValue(int type, boolean value)

Used to set boolean values

Returns
`boolean`	true if it accepted the value

setValue

Added in 1.1.1

public boolean setValue(int type, float value)

Used to set float values

Returns
`boolean`	true if it accepted the value

setValue

Added in 1.1.1

public boolean setValue(int type, int value)

Used to set integer values

Returns
`boolean`	true if it accepted the value

setValue

Added in 1.1.1

public boolean setValue(int type, String value)

Used to set String values

Returns
`boolean`	true if it accepted the value

setViewId

Added in 1.1.1

public MotionKey setViewId(int id)