209 lines
5.2 KiB
Smali
209 lines
5.2 KiB
Smali
.class public final Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;
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.super Ljava/lang/Object;
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.source "FlingAnimation.java"
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# interfaces
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.implements Landroidx/dynamicanimation/animation/Force;
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# annotations
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.annotation system Ldalvik/annotation/EnclosingClass;
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value = Landroidx/dynamicanimation/animation/FlingAnimation;
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.end annotation
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.annotation system Ldalvik/annotation/InnerClass;
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accessFlags = 0x19
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name = "DragForce"
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.end annotation
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# static fields
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.field public static final DEFAULT_FRICTION:F = -4.2f
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.field public static final VELOCITY_THRESHOLD_MULTIPLIER:F = 62.5f
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# instance fields
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.field public mFriction:F
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.field public final mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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.field public mVelocityThreshold:F
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# direct methods
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.method public constructor <init>()V
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.locals 1
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invoke-direct {p0}, Ljava/lang/Object;-><init>()V
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const v0, -0x3f79999a # -4.2f
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iput v0, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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new-instance v0, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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invoke-direct {v0}, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;-><init>()V
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iput-object v0, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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return-void
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.end method
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# virtual methods
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.method public getAcceleration(FF)F
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.locals 0
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iget p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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mul-float p2, p2, p1
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return p2
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.end method
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.method public getFrictionScalar()F
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.locals 2
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iget v0, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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const v1, -0x3f79999a # -4.2f
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div-float/2addr v0, v1
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return v0
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.end method
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.method public isAtEquilibrium(FF)Z
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.locals 0
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invoke-static {p2}, Ljava/lang/Math;->abs(F)F
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move-result p1
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iget p2, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mVelocityThreshold:F
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cmpg-float p1, p1, p2
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if-gez p1, :cond_0
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const/4 p1, 0x1
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goto :goto_0
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:cond_0
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const/4 p1, 0x0
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:goto_0
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return p1
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.end method
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.method public setFrictionScalar(F)V
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.locals 1
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const v0, -0x3f79999a # -4.2f
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mul-float p1, p1, v0
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iput p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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return-void
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.end method
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.method public setValueThreshold(F)V
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.locals 1
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const/high16 v0, 0x427a0000 # 62.5f
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mul-float p1, p1, v0
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iput p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mVelocityThreshold:F
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return-void
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.end method
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.method public updateValueAndVelocity(FFJ)Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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.locals 5
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iget-object v0, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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float-to-double v1, p2
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long-to-float p3, p3
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const/high16 p4, 0x447a0000 # 1000.0f
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div-float v3, p3, p4
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iget v4, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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mul-float v3, v3, v4
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float-to-double v3, v3
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invoke-static {v3, v4}, Ljava/lang/Math;->exp(D)D
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move-result-wide v3
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mul-double v3, v3, v1
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double-to-float v1, v3
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iput v1, v0, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;->mVelocity:F
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iget-object v0, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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iget v1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mFriction:F
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div-float v2, p2, v1
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sub-float/2addr p1, v2
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float-to-double v2, p1
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div-float/2addr p2, v1
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float-to-double p1, p2
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mul-float v1, v1, p3
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div-float/2addr v1, p4
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float-to-double p3, v1
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invoke-static {p3, p4}, Ljava/lang/Math;->exp(D)D
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move-result-wide p3
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mul-double p3, p3, p1
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add-double/2addr p3, v2
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double-to-float p1, p3
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iput p1, v0, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;->mValue:F
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iget-object p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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iget p2, p1, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;->mValue:F
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iget p1, p1, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;->mVelocity:F
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invoke-virtual {p0, p2, p1}, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->isAtEquilibrium(FF)Z
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move-result p1
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if-eqz p1, :cond_0
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iget-object p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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const/4 p2, 0x0
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iput p2, p1, Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;->mVelocity:F
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:cond_0
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iget-object p1, p0, Landroidx/dynamicanimation/animation/FlingAnimation$DragForce;->mMassState:Landroidx/dynamicanimation/animation/DynamicAnimation$MassState;
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return-object p1
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.end method
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