File	Doc	Category	Size	Date	Package
Keyframe.java	API Doc	Android 5.1 API	14755	Thu Mar 12 22:22:08 GMT 2015	android.animation

Keyframe

• java.lang.Object

Fields Summary
boolean	mHasValue Flag to indicate whether this keyframe has a valid value. This flag is used when an animation first starts, to populate placeholder keyframes with real values derived from the target object.
boolean	mValueWasSetOnStart Flag to indicate whether the value in the keyframe was read from the target object or not. If so, its value will be recalculated if target changes.
float	mFraction The time at which mValue will hold true.
Class	mValueType The type of the value in this Keyframe. This type is determined at construction time, based on the type of the value object passed into the constructor.
private TimeInterpolator	mInterpolator The optional time interpolator for the interval preceding this keyframe. A null interpolator (the default) results in linear interpolation over the interval.

Constructors Summary

Methods Summary
public abstract android.animation.Keyframe	clone()
public float	getFraction() Gets the time for this keyframe, as a fraction of the overall animation duration. return The time associated with this keyframe, as a fraction of the overall animation duration. This should be a value between 0 and 1. return mFraction;
public TimeInterpolator	getInterpolator() Gets the optional interpolator for this Keyframe. A value of null indicates that there is no interpolation, which is the same as linear interpolation. return The optional interpolator for this Keyframe. return mInterpolator;
public java.lang.Class	getType() Gets the type of keyframe. This information is used by ValueAnimator to determine the type of {@link TypeEvaluator} to use when calculating values between keyframes. The type is based on the type of Keyframe created. return The type of the value stored in the Keyframe. return mValueType;
public abstract java.lang.Object	getValue() Gets the value for this Keyframe. return The value for this Keyframe.
public boolean	hasValue() Indicates whether this keyframe has a valid value. This method is called internally when an {@link ObjectAnimator} first starts; keyframes without values are assigned values at that time by deriving the value for the property from the target object. return boolean Whether this object has a value assigned. return mHasValue;
public static android.animation.Keyframe	ofFloat(float fraction, float value) Constructs a Keyframe object with the given time and value. The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. param value The value that the object will animate to as the animation time approaches the time in this keyframe, and the the value animated from as the time passes the time in this keyframe. return new FloatKeyframe(fraction, value);
public static android.animation.Keyframe	ofFloat(float fraction) Constructs a Keyframe object with the given time. The value at this time will be derived from the target object when the animation first starts (note that this implies that keyframes with no initial value must be used as part of an {@link ObjectAnimator}). The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. return new FloatKeyframe(fraction);
public static android.animation.Keyframe	ofInt(float fraction, int value) Constructs a Keyframe object with the given time and value. The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. param value The value that the object will animate to as the animation time approaches the time in this keyframe, and the the value animated from as the time passes the time in this keyframe. return new IntKeyframe(fraction, value);
public static android.animation.Keyframe	ofInt(float fraction) Constructs a Keyframe object with the given time. The value at this time will be derived from the target object when the animation first starts (note that this implies that keyframes with no initial value must be used as part of an {@link ObjectAnimator}). The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. return new IntKeyframe(fraction);
public static android.animation.Keyframe	ofObject(float fraction, java.lang.Object value) Constructs a Keyframe object with the given time and value. The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. param value The value that the object will animate to as the animation time approaches the time in this keyframe, and the the value animated from as the time passes the time in this keyframe. return new ObjectKeyframe(fraction, value);
public static android.animation.Keyframe	ofObject(float fraction) Constructs a Keyframe object with the given time. The value at this time will be derived from the target object when the animation first starts (note that this implies that keyframes with no initial value must be used as part of an {@link ObjectAnimator}). The time defines the time, as a proportion of an overall animation's duration, at which the value will hold true for the animation. The value for the animation between keyframes will be calculated as an interpolation between the values at those keyframes. param fraction The time, expressed as a value between 0 and 1, representing the fraction of time elapsed of the overall animation duration. return new ObjectKeyframe(fraction, null);
public void	setFraction(float fraction) Sets the time for this keyframe, as a fraction of the overall animation duration. param fraction time associated with this keyframe, as a fraction of the overall animation duration. This should be a value between 0 and 1. mFraction = fraction;
public void	setInterpolator(TimeInterpolator interpolator) Sets the optional interpolator for this Keyframe. A value of null indicates that there is no interpolation, which is the same as linear interpolation. return The optional interpolator for this Keyframe. mInterpolator = interpolator;
public abstract void	setValue(java.lang.Object value) Sets the value for this Keyframe. param value value for this Keyframe.
void	setValueWasSetOnStart(boolean valueWasSetOnStart) mValueWasSetOnStart = valueWasSetOnStart;
boolean	valueWasSetOnStart() If the Keyframe's value was acquired from the target object, this flag should be set so that, if target changes, value will be reset. return boolean Whether this Keyframe's value was retieved from the target object or not. return mValueWasSetOnStart;