402 lines
8.7 KiB
Smali
402 lines
8.7 KiB
Smali
.class public Landroidx/core/widget/AutoScrollHelper$ClampedScroller;
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.super Ljava/lang/Object;
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.source "AutoScrollHelper.java"
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# annotations
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.annotation system Ldalvik/annotation/EnclosingClass;
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value = Landroidx/core/widget/AutoScrollHelper;
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.end annotation
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.annotation system Ldalvik/annotation/InnerClass;
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accessFlags = 0x9
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name = "ClampedScroller"
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.end annotation
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# instance fields
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.field public mDeltaTime:J
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.field public mDeltaX:I
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.field public mDeltaY:I
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.field public mEffectiveRampDown:I
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.field public mRampDownDuration:I
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.field public mRampUpDuration:I
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.field public mStartTime:J
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.field public mStopTime:J
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.field public mStopValue:F
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.field public mTargetVelocityX:F
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.field public mTargetVelocityY:F
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# direct methods
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.method public constructor <init>()V
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.locals 2
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invoke-direct {p0}, Ljava/lang/Object;-><init>()V
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const-wide/high16 v0, -0x8000000000000000L
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStartTime:J
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const-wide/16 v0, -0x1
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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const-wide/16 v0, 0x0
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaTime:J
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const/4 v0, 0x0
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaX:I
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaY:I
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return-void
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.end method
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.method private getValueAt(J)F
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.locals 7
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iget-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStartTime:J
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const/4 v2, 0x0
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cmp-long v3, p1, v0
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if-gez v3, :cond_0
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return v2
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:cond_0
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iget-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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const-wide/16 v3, 0x0
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const/high16 v5, 0x3f800000 # 1.0f
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cmp-long v6, v0, v3
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if-ltz v6, :cond_2
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cmp-long v3, p1, v0
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if-gez v3, :cond_1
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goto :goto_0
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:cond_1
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sub-long/2addr p1, v0
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iget v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopValue:F
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sub-float v1, v5, v0
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long-to-float p1, p1
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iget p2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mEffectiveRampDown:I
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int-to-float p2, p2
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div-float/2addr p1, p2
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invoke-static {p1, v2, v5}, Landroidx/core/widget/AutoScrollHelper;->constrain(FFF)F
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move-result p1
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mul-float p1, p1, v0
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add-float/2addr p1, v1
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return p1
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:cond_2
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:goto_0
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iget-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStartTime:J
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sub-long/2addr p1, v0
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const/high16 v0, 0x3f000000 # 0.5f
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long-to-float p1, p1
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iget p2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mRampUpDuration:I
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int-to-float p2, p2
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div-float/2addr p1, p2
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invoke-static {p1, v2, v5}, Landroidx/core/widget/AutoScrollHelper;->constrain(FFF)F
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move-result p1
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mul-float p1, p1, v0
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return p1
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.end method
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.method private interpolateValue(F)F
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.locals 2
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const/high16 v0, -0x3f800000 # -4.0f
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mul-float v0, v0, p1
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mul-float v0, v0, p1
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const/high16 v1, 0x40800000 # 4.0f
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mul-float p1, p1, v1
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add-float/2addr p1, v0
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return p1
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.end method
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# virtual methods
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.method public computeScrollDelta()V
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.locals 5
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iget-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaTime:J
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const-wide/16 v2, 0x0
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cmp-long v4, v0, v2
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if-eqz v4, :cond_0
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invoke-static {}, Landroid/view/animation/AnimationUtils;->currentAnimationTimeMillis()J
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move-result-wide v0
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invoke-direct {p0, v0, v1}, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->getValueAt(J)F
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move-result v2
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invoke-direct {p0, v2}, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->interpolateValue(F)F
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move-result v2
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iget-wide v3, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaTime:J
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sub-long v3, v0, v3
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaTime:J
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long-to-float v0, v3
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mul-float v0, v0, v2
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iget v1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityX:F
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mul-float v1, v1, v0
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float-to-int v1, v1
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iput v1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaX:I
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iget v1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityY:F
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mul-float v0, v0, v1
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float-to-int v0, v0
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaY:I
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return-void
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:cond_0
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new-instance v0, Ljava/lang/RuntimeException;
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const-string v1, "Cannot compute scroll delta before calling start()"
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invoke-direct {v0, v1}, Ljava/lang/RuntimeException;-><init>(Ljava/lang/String;)V
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throw v0
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.end method
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.method public getDeltaX()I
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.locals 1
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iget v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaX:I
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return v0
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.end method
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.method public getDeltaY()I
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.locals 1
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iget v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaY:I
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return v0
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.end method
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.method public getHorizontalDirection()I
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.locals 2
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iget v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityX:F
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invoke-static {v0}, Ljava/lang/Math;->abs(F)F
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move-result v1
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div-float/2addr v0, v1
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float-to-int v0, v0
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return v0
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.end method
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.method public getVerticalDirection()I
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.locals 2
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iget v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityY:F
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invoke-static {v0}, Ljava/lang/Math;->abs(F)F
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move-result v1
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div-float/2addr v0, v1
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float-to-int v0, v0
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return v0
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.end method
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.method public isFinished()Z
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.locals 6
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iget-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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const-wide/16 v2, 0x0
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cmp-long v4, v0, v2
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if-lez v4, :cond_0
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invoke-static {}, Landroid/view/animation/AnimationUtils;->currentAnimationTimeMillis()J
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move-result-wide v0
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iget-wide v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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iget v4, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mEffectiveRampDown:I
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int-to-long v4, v4
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add-long/2addr v2, v4
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cmp-long v4, v0, v2
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if-lez v4, :cond_0
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const/4 v0, 0x1
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goto :goto_0
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:cond_0
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const/4 v0, 0x0
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:goto_0
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return v0
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.end method
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.method public requestStop()V
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.locals 5
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invoke-static {}, Landroid/view/animation/AnimationUtils;->currentAnimationTimeMillis()J
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move-result-wide v0
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iget-wide v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStartTime:J
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sub-long v2, v0, v2
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long-to-int v3, v2
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iget v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mRampDownDuration:I
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const/4 v4, 0x0
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invoke-static {v3, v4, v2}, Landroidx/core/widget/AutoScrollHelper;->constrain(III)I
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move-result v2
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iput v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mEffectiveRampDown:I
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invoke-direct {p0, v0, v1}, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->getValueAt(J)F
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move-result v2
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iput v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopValue:F
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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return-void
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.end method
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.method public setRampDownDuration(I)V
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.locals 0
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iput p1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mRampDownDuration:I
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return-void
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.end method
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.method public setRampUpDuration(I)V
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.locals 0
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iput p1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mRampUpDuration:I
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return-void
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.end method
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.method public setTargetVelocity(FF)V
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.locals 0
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iput p1, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityX:F
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iput p2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mTargetVelocityY:F
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return-void
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.end method
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.method public start()V
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.locals 4
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invoke-static {}, Landroid/view/animation/AnimationUtils;->currentAnimationTimeMillis()J
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move-result-wide v0
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStartTime:J
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const-wide/16 v2, -0x1
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iput-wide v2, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopTime:J
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iput-wide v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaTime:J
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const/high16 v0, 0x3f000000 # 0.5f
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mStopValue:F
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const/4 v0, 0x0
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaX:I
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iput v0, p0, Landroidx/core/widget/AutoScrollHelper$ClampedScroller;->mDeltaY:I
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return-void
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.end method
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