Rabbit-R1/android (non root)/java/sources/androidx/dynamicanimation/animation/FlingAnimation.java
2024-05-21 17:08:36 -04:00

130 lines
4.6 KiB
Java

package androidx.dynamicanimation.animation;
import androidx.dynamicanimation.animation.DynamicAnimation;
/* loaded from: classes.dex */
public final class FlingAnimation extends DynamicAnimation<FlingAnimation> {
private final DragForce mFlingForce;
public FlingAnimation(FloatValueHolder floatValueHolder) {
super(floatValueHolder);
DragForce dragForce = new DragForce();
this.mFlingForce = dragForce;
dragForce.setValueThreshold(getValueThreshold());
}
public <K> FlingAnimation(K k, FloatPropertyCompat<K> floatPropertyCompat) {
super(k, floatPropertyCompat);
DragForce dragForce = new DragForce();
this.mFlingForce = dragForce;
dragForce.setValueThreshold(getValueThreshold());
}
public FlingAnimation setFriction(float f) {
if (f <= 0.0f) {
throw new IllegalArgumentException("Friction must be positive");
}
this.mFlingForce.setFrictionScalar(f);
return this;
}
public float getFriction() {
return this.mFlingForce.getFrictionScalar();
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
public FlingAnimation setMinValue(float f) {
super.setMinValue(f);
return this;
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
public FlingAnimation setMaxValue(float f) {
super.setMaxValue(f);
return this;
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
public FlingAnimation setStartVelocity(float f) {
super.setStartVelocity(f);
return this;
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
boolean updateValueAndVelocity(long j) {
DynamicAnimation.MassState updateValueAndVelocity = this.mFlingForce.updateValueAndVelocity(this.mValue, this.mVelocity, j);
this.mValue = updateValueAndVelocity.mValue;
this.mVelocity = updateValueAndVelocity.mVelocity;
if (this.mValue < this.mMinValue) {
this.mValue = this.mMinValue;
return true;
}
if (this.mValue <= this.mMaxValue) {
return isAtEquilibrium(this.mValue, this.mVelocity);
}
this.mValue = this.mMaxValue;
return true;
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
float getAcceleration(float f, float f2) {
return this.mFlingForce.getAcceleration(f, f2);
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
boolean isAtEquilibrium(float f, float f2) {
return f >= this.mMaxValue || f <= this.mMinValue || this.mFlingForce.isAtEquilibrium(f, f2);
}
@Override // androidx.dynamicanimation.animation.DynamicAnimation
void setValueThreshold(float f) {
this.mFlingForce.setValueThreshold(f);
}
/* JADX INFO: Access modifiers changed from: package-private */
/* loaded from: classes.dex */
public static final class DragForce implements Force {
private static final float DEFAULT_FRICTION = -4.2f;
private static final float VELOCITY_THRESHOLD_MULTIPLIER = 62.5f;
private float mFriction = DEFAULT_FRICTION;
private final DynamicAnimation.MassState mMassState = new DynamicAnimation.MassState();
private float mVelocityThreshold;
@Override // androidx.dynamicanimation.animation.Force
public float getAcceleration(float f, float f2) {
return f2 * this.mFriction;
}
float getFrictionScalar() {
return this.mFriction / DEFAULT_FRICTION;
}
void setFrictionScalar(float f) {
this.mFriction = f * DEFAULT_FRICTION;
}
void setValueThreshold(float f) {
this.mVelocityThreshold = f * VELOCITY_THRESHOLD_MULTIPLIER;
}
DragForce() {
}
DynamicAnimation.MassState updateValueAndVelocity(float f, float f2, long j) {
float f3 = (float) j;
this.mMassState.mVelocity = (float) (f2 * Math.exp((f3 / 1000.0f) * this.mFriction));
DynamicAnimation.MassState massState = this.mMassState;
float f4 = this.mFriction;
massState.mValue = (float) ((f - (f2 / f4)) + ((f2 / f4) * Math.exp((f4 * f3) / 1000.0f)));
if (isAtEquilibrium(this.mMassState.mValue, this.mMassState.mVelocity)) {
this.mMassState.mVelocity = 0.0f;
}
return this.mMassState;
}
@Override // androidx.dynamicanimation.animation.Force
public boolean isAtEquilibrium(float f, float f2) {
return Math.abs(f2) < this.mVelocityThreshold;
}
}
}