.class public Landroidx/recyclerview/widget/LinearSnapHelper; .super Landroidx/recyclerview/widget/SnapHelper; # static fields .field private static final INVALID_DISTANCE:F = 1.0f # instance fields .field private mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper; .annotation build Landroidx/annotation/Nullable; .end annotation .end field .field private mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper; .annotation build Landroidx/annotation/Nullable; .end annotation .end field # direct methods .method public constructor ()V .locals 0 invoke-direct {p0}, Landroidx/recyclerview/widget/SnapHelper;->()V return-void .end method .method private computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F .locals 10 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I move-result v0 const/high16 v1, 0x3f800000 # 1.0f if-nez v0, :cond_0 return v1 :cond_0 const/4 v2, 0x0 const/4 v3, 0x0 const v4, 0x7fffffff const/high16 v5, -0x80000000 move-object v5, v3 const/high16 v6, -0x80000000 :goto_0 if-ge v2, v0, :cond_3 invoke-virtual {p1, v2}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View; move-result-object v7 invoke-virtual {p1, v7}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I move-result v8 const/4 v9, -0x1 if-eq v8, v9, :cond_2 if-ge v8, v4, :cond_1 move-object v3, v7 move v4, v8 :cond_1 if-le v8, v6, :cond_2 move-object v5, v7 move v6, v8 :cond_2 add-int/lit8 v2, v2, 0x1 goto :goto_0 :cond_3 if-eqz v3, :cond_6 if-nez v5, :cond_4 goto :goto_1 :cond_4 invoke-virtual {p2, v3}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I move-result p1 invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I move-result v0 invoke-static {p1, v0}, Ljava/lang/Math;->min(II)I move-result p1 invoke-virtual {p2, v3}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I move-result v0 invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I move-result p2 invoke-static {v0, p2}, Ljava/lang/Math;->max(II)I move-result p2 sub-int/2addr p2, p1 if-nez p2, :cond_5 return v1 :cond_5 int-to-float p1, p2 mul-float p1, p1, v1 sub-int/2addr v6, v4 add-int/lit8 v6, v6, 0x1 int-to-float p2, v6 div-float/2addr p1, p2 return p1 :cond_6 :goto_1 return v1 .end method .method private distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I .locals 1 .param p1 # Landroidx/recyclerview/widget/RecyclerView$LayoutManager; .annotation build Landroidx/annotation/NonNull; .end annotation .end param .param p2 # Landroid/view/View; .annotation build Landroidx/annotation/NonNull; .end annotation .end param invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I move-result v0 invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I move-result p2 div-int/lit8 p2, p2, 0x2 add-int/2addr v0, p2 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getClipToPadding()Z move-result p1 if-eqz p1, :cond_0 invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I move-result p1 invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I move-result p2 div-int/lit8 p2, p2, 0x2 add-int/2addr p1, p2 goto :goto_0 :cond_0 invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getEnd()I move-result p1 div-int/lit8 p1, p1, 0x2 :goto_0 sub-int/2addr v0, p1 return v0 .end method .method private estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I .locals 2 invoke-virtual {p0, p3, p4}, Landroidx/recyclerview/widget/LinearSnapHelper;->calculateScrollDistance(II)[I move-result-object p3 invoke-direct {p0, p1, p2}, Landroidx/recyclerview/widget/LinearSnapHelper;->computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F move-result p1 const/4 p2, 0x0 const/4 p4, 0x0 cmpg-float p4, p1, p4 if-gtz p4, :cond_0 return p2 :cond_0 aget p4, p3, p2 invoke-static {p4}, Ljava/lang/Math;->abs(I)I move-result p4 const/4 v0, 0x1 aget v1, p3, v0 invoke-static {v1}, Ljava/lang/Math;->abs(I)I move-result v1 if-le p4, v1, :cond_1 aget p2, p3, p2 goto :goto_0 :cond_1 aget p2, p3, v0 :goto_0 int-to-float p2, p2 div-float/2addr p2, p1 invoke-static {p2}, Ljava/lang/Math;->round(F)I move-result p1 return p1 .end method .method private findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View; .locals 8 .annotation build Landroidx/annotation/Nullable; .end annotation invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I move-result v0 const/4 v1, 0x0 if-nez v0, :cond_0 return-object v1 :cond_0 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getClipToPadding()Z move-result v2 if-eqz v2, :cond_1 invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I move-result v2 invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I move-result v3 div-int/lit8 v3, v3, 0x2 add-int/2addr v2, v3 goto :goto_0 :cond_1 invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getEnd()I move-result v2 div-int/lit8 v2, v2, 0x2 :goto_0 const v3, 0x7fffffff const/4 v4, 0x0 :goto_1 if-ge v4, v0, :cond_3 invoke-virtual {p1, v4}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View; move-result-object v5 invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I move-result v6 invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I move-result v7 div-int/lit8 v7, v7, 0x2 add-int/2addr v6, v7 sub-int/2addr v6, v2 invoke-static {v6}, Ljava/lang/Math;->abs(I)I move-result v6 if-ge v6, v3, :cond_2 move-object v1, v5 move v3, v6 :cond_2 add-int/lit8 v4, v4, 0x1 goto :goto_1 :cond_3 return-object v1 .end method .method private getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; .locals 1 .param p1 # Landroidx/recyclerview/widget/RecyclerView$LayoutManager; .annotation build Landroidx/annotation/NonNull; .end annotation .end param .annotation build Landroidx/annotation/NonNull; .end annotation iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper; if-eqz v0, :cond_0 iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper; iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager; if-eq v0, p1, :cond_1 :cond_0 invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object p1 iput-object p1, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper; :cond_1 iget-object p1, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper; return-object p1 .end method .method private getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; .locals 1 .param p1 # Landroidx/recyclerview/widget/RecyclerView$LayoutManager; .annotation build Landroidx/annotation/NonNull; .end annotation .end param .annotation build Landroidx/annotation/NonNull; .end annotation iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper; if-eqz v0, :cond_0 iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper; iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager; if-eq v0, p1, :cond_1 :cond_0 invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object p1 iput-object p1, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper; :cond_1 iget-object p1, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper; return-object p1 .end method # virtual methods .method public calculateDistanceToFinalSnap(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;)[I .locals 4 .param p1 # Landroidx/recyclerview/widget/RecyclerView$LayoutManager; .annotation build Landroidx/annotation/NonNull; .end annotation .end param .param p2 # Landroid/view/View; .annotation build Landroidx/annotation/NonNull; .end annotation .end param const/4 v0, 0x2 new-array v0, v0, [I invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z move-result v1 const/4 v2, 0x0 if-eqz v1, :cond_0 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v1 invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I move-result v1 aput v1, v0, v2 goto :goto_0 :cond_0 aput v2, v0, v2 :goto_0 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z move-result v1 const/4 v3, 0x1 if-eqz v1, :cond_1 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v1 invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I move-result p1 aput p1, v0, v3 goto :goto_1 :cond_1 aput v2, v0, v3 :goto_1 return-object v0 .end method .method public findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View; .locals 1 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z move-result v0 if-eqz v0, :cond_0 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v0 :goto_0 invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/LinearSnapHelper;->findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View; move-result-object p1 return-object p1 :cond_0 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z move-result v0 if-eqz v0, :cond_1 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v0 goto :goto_0 :cond_1 const/4 p1, 0x0 return-object p1 .end method .method public findTargetSnapPosition(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;II)I .locals 8 instance-of v0, p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider; const/4 v1, -0x1 if-nez v0, :cond_0 return v1 :cond_0 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getItemCount()I move-result v0 if-nez v0, :cond_1 return v1 :cond_1 invoke-virtual {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View; move-result-object v2 if-nez v2, :cond_2 return v1 :cond_2 invoke-virtual {p1, v2}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I move-result v2 if-ne v2, v1, :cond_3 return v1 :cond_3 move-object v3, p1 check-cast v3, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider; add-int/lit8 v4, v0, -0x1 invoke-interface {v3, v4}, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;->computeScrollVectorForPosition(I)Landroid/graphics/PointF; move-result-object v3 if-nez v3, :cond_4 return v1 :cond_4 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z move-result v5 const/4 v6, 0x0 const/4 v7, 0x0 if-eqz v5, :cond_5 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v5 invoke-direct {p0, p1, v5, p2, v7}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I move-result p2 iget v5, v3, Landroid/graphics/PointF;->x:F cmpg-float v5, v5, v6 if-gez v5, :cond_6 neg-int p2, p2 goto :goto_0 :cond_5 const/4 p2, 0x0 :cond_6 :goto_0 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z move-result v5 if-eqz v5, :cond_7 invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper; move-result-object v5 invoke-direct {p0, p1, v5, v7, p3}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I move-result p3 iget v3, v3, Landroid/graphics/PointF;->y:F cmpg-float v3, v3, v6 if-gez v3, :cond_8 neg-int p3, p3 goto :goto_1 :cond_7 const/4 p3, 0x0 :cond_8 :goto_1 invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z move-result p1 if-eqz p1, :cond_9 move p2, p3 :cond_9 if-nez p2, :cond_a return v1 :cond_a add-int/2addr v2, p2 if-gez v2, :cond_b const/4 v2, 0x0 :cond_b if-lt v2, v0, :cond_c move v2, v4 :cond_c return v2 .end method