LinearSnapHelper.smali
.class public Landroidx/recyclerview/widget/LinearSnapHelper;
.super Landroidx/recyclerview/widget/SnapHelper;
.source "LinearSnapHelper.java"
# static fields
.field private static final INVALID_DISTANCE:F = 1.0f
# instance fields
.field private mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;
.field private mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;
# direct methods
.method static constructor <clinit>()V
.registers 1
return-void
.end method
.method public constructor <init>()V
.registers 1
.line 33
invoke-direct {p0}, Landroidx/recyclerview/widget/SnapHelper;-><init>()V
return-void
.end method
.method private computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F
.registers 13
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "helper" # Landroidx/recyclerview/widget/OrientationHelper;
.line 233
const/4 v0, 0x0
.line 234
.local v0, "minPosView":Landroid/view/View;
const/4 v1, 0x0
.line 235
.local v1, "maxPosView":Landroid/view/View;
const v2, 0x7fffffff
.line 236
.local v2, "minPos":I
const/high16 v3, -0x80000000
.line 237
.local v3, "maxPos":I
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I
move-result v4
.line 238
.local v4, "childCount":I
const/high16 v5, 0x3f800000 # 1.0f
if-nez v4, :cond_10
.line 239
return v5
.line 242
:cond_10
const/4 v6, 0x0
.local v6, "i":I
:goto_11
if-ge v6, v4, :cond_2a
.line 243
invoke-virtual {p1, v6}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;
move-result-object v7
.line 244
.local v7, "child":Landroid/view/View;
invoke-virtual {p1, v7}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I
move-result v8
.line 245
.local v8, "pos":I
const/4 v9, -0x1
if-ne v8, v9, :cond_1f
.line 246
goto :goto_27
.line 248
:cond_1f
if-ge v8, v2, :cond_23
.line 249
move v2, v8
.line 250
move-object v0, v7
.line 252
:cond_23
if-le v8, v3, :cond_27
.line 253
move v3, v8
.line 254
move-object v1, v7
.line 242
.end local v7 # "child":Landroid/view/View;
.end local v8 # "pos":I
:cond_27
:goto_27
add-int/lit8 v6, v6, 0x1
goto :goto_11
.line 257
.end local v6 # "i":I
:cond_2a
if-eqz v0, :cond_56
if-nez v1, :cond_2f
goto :goto_56
.line 260
:cond_2f
invoke-virtual {p2, v0}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I
move-result v6
.line 261
invoke-virtual {p2, v1}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I
move-result v7
.line 260
invoke-static {v6, v7}, Ljava/lang/Math;->min(II)I
move-result v6
.line 262
.local v6, "start":I
invoke-virtual {p2, v0}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I
move-result v7
.line 263
invoke-virtual {p2, v1}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedEnd(Landroid/view/View;)I
move-result v8
.line 262
invoke-static {v7, v8}, Ljava/lang/Math;->max(II)I
move-result v7
.line 264
.local v7, "end":I
sub-int v8, v7, v6
.line 265
.local v8, "distance":I
if-nez v8, :cond_4c
.line 266
return v5
.line 268
:cond_4c
int-to-float v9, v8
mul-float v9, v9, v5
sub-int v5, v3, v2
add-int/lit8 v5, v5, 0x1
int-to-float v5, v5
div-float/2addr v9, v5
return v9
.line 258
.end local v6 # "start":I
.end local v7 # "end":I
.end local v8 # "distance":I
:cond_56
:goto_56
return v5
.end method
.method private distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I
.registers 7
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "targetView" # Landroid/view/View;
.param p3, "helper" # Landroidx/recyclerview/widget/OrientationHelper;
.line 143
invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I
move-result v0
.line 144
invoke-virtual {p3, p2}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedMeasurement(Landroid/view/View;)I
move-result v1
div-int/lit8 v1, v1, 0x2
add-int/2addr v0, v1
.line 146
.local v0, "childCenter":I
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getClipToPadding()Z
move-result v1
if-eqz v1, :cond_1d
.line 147
invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I
move-result v1
invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I
move-result v2
div-int/lit8 v2, v2, 0x2
add-int/2addr v1, v2
.local v1, "containerCenter":I
goto :goto_23
.line 149
.end local v1 # "containerCenter":I
:cond_1d
invoke-virtual {p3}, Landroidx/recyclerview/widget/OrientationHelper;->getEnd()I
move-result v1
div-int/lit8 v1, v1, 0x2
.line 151
.restart local v1 # "containerCenter":I
:goto_23
sub-int v2, v0, v1
return v2
.end method
.method private estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I
.registers 11
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "helper" # Landroidx/recyclerview/widget/OrientationHelper;
.param p3, "velocityX" # I
.param p4, "velocityY" # I
.line 167
invoke-virtual {p0, p3, p4}, Landroidx/recyclerview/widget/LinearSnapHelper;->calculateScrollDistance(II)[I
move-result-object v0
.line 168
.local v0, "distances":[I
invoke-direct {p0, p1, p2}, Landroidx/recyclerview/widget/LinearSnapHelper;->computeDistancePerChild(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)F
move-result v1
.line 169
.local v1, "distancePerChild":F
const/4 v2, 0x0
const/4 v3, 0x0
cmpg-float v3, v1, v3
if-gtz v3, :cond_f
.line 170
return v2
.line 172
:cond_f
aget v3, v0, v2
.line 173
invoke-static {v3}, Ljava/lang/Math;->abs(I)I
move-result v3
const/4 v4, 0x1
aget v5, v0, v4
invoke-static {v5}, Ljava/lang/Math;->abs(I)I
move-result v5
if-le v3, v5, :cond_21
aget v2, v0, v2
goto :goto_23
:cond_21
aget v2, v0, v4
.line 174
.local v2, "distance":I
:goto_23
int-to-float v3, v2
div-float/2addr v3, v1
invoke-static {v3}, Ljava/lang/Math;->round(F)I
move-result v3
return v3
.end method
.method private findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;
.registers 11
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "helper" # Landroidx/recyclerview/widget/OrientationHelper;
.line 189
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildCount()I
move-result v0
.line 190
.local v0, "childCount":I
if-nez v0, :cond_8
.line 191
const/4 v1, 0x0
return-object v1
.line 194
:cond_8
const/4 v1, 0x0
.line 196
.local v1, "closestChild":Landroid/view/View;
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getClipToPadding()Z
move-result v2
if-eqz v2, :cond_1b
.line 197
invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getStartAfterPadding()I
move-result v2
invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getTotalSpace()I
move-result v3
div-int/lit8 v3, v3, 0x2
add-int/2addr v2, v3
.local v2, "center":I
goto :goto_21
.line 199
.end local v2 # "center":I
:cond_1b
invoke-virtual {p2}, Landroidx/recyclerview/widget/OrientationHelper;->getEnd()I
move-result v2
div-int/lit8 v2, v2, 0x2
.line 201
.restart local v2 # "center":I
:goto_21
const v3, 0x7fffffff
.line 203
.local v3, "absClosest":I
const/4 v4, 0x0
.local v4, "i":I
:goto_25
if-ge v4, v0, :cond_43
.line 204
invoke-virtual {p1, v4}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getChildAt(I)Landroid/view/View;
move-result-object v5
.line 205
.local v5, "child":Landroid/view/View;
invoke-virtual {p2, v5}, Landroidx/recyclerview/widget/OrientationHelper;->getDecoratedStart(Landroid/view/View;)I
move-result v6
.line 206
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
.line 207
.local v6, "childCenter":I
sub-int v7, v6, v2
invoke-static {v7}, Ljava/lang/Math;->abs(I)I
move-result v7
.line 210
.local v7, "absDistance":I
if-ge v7, v3, :cond_40
.line 211
move v3, v7
.line 212
move-object v1, v5
.line 203
.end local v5 # "child":Landroid/view/View;
.end local v6 # "childCenter":I
.end local v7 # "absDistance":I
:cond_40
add-int/lit8 v4, v4, 0x1
goto :goto_25
.line 215
.end local v4 # "i":I
:cond_43
return-object v1
.end method
.method private getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
.registers 3
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.line 282
iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;
if-eqz v0, :cond_8
iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
if-eq v0, p1, :cond_e
.line 283
:cond_8
invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v0
iput-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;
.line 285
:cond_e
iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mHorizontalHelper:Landroidx/recyclerview/widget/OrientationHelper;
return-object v0
.end method
.method private getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
.registers 3
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.line 273
iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;
if-eqz v0, :cond_8
iget-object v0, v0, Landroidx/recyclerview/widget/OrientationHelper;->mLayoutManager:Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
if-eq v0, p1, :cond_e
.line 274
:cond_8
invoke-static {p1}, Landroidx/recyclerview/widget/OrientationHelper;->createVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v0
iput-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;
.line 276
:cond_e
iget-object v0, p0, Landroidx/recyclerview/widget/LinearSnapHelper;->mVerticalHelper:Landroidx/recyclerview/widget/OrientationHelper;
return-object v0
.end method
# virtual methods
.method public calculateDistanceToFinalSnap(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;)[I
.registers 7
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "targetView" # Landroid/view/View;
.line 46
const/4 v0, 0x2
new-array v0, v0, [I
.line 47
.local v0, "out":[I
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z
move-result v1
const/4 v2, 0x0
if-eqz v1, :cond_16
.line 48
nop
.line 49
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v1
.line 48
invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I
move-result v1
aput v1, v0, v2
goto :goto_18
.line 51
:cond_16
aput v2, v0, v2
.line 54
:goto_18
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z
move-result v1
const/4 v3, 0x1
if-eqz v1, :cond_2b
.line 55
nop
.line 56
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v1
.line 55
invoke-direct {p0, p1, p2, v1}, Landroidx/recyclerview/widget/LinearSnapHelper;->distanceToCenter(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroid/view/View;Landroidx/recyclerview/widget/OrientationHelper;)I
move-result v1
aput v1, v0, v3
goto :goto_2d
.line 58
:cond_2b
aput v2, v0, v3
.line 60
:goto_2d
return-object v0
.end method
.method public findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View;
.registers 3
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.line 133
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z
move-result v0
if-eqz v0, :cond_f
.line 134
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v0
invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/LinearSnapHelper;->findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;
move-result-object v0
return-object v0
.line 135
:cond_f
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z
move-result v0
if-eqz v0, :cond_1e
.line 136
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v0
invoke-direct {p0, p1, v0}, Landroidx/recyclerview/widget/LinearSnapHelper;->findCenterView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;)Landroid/view/View;
move-result-object v0
return-object v0
.line 138
:cond_1e
const/4 v0, 0x0
return-object v0
.end method
.method public findTargetSnapPosition(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;II)I
.registers 14
.param p1, "layoutManager" # Landroidx/recyclerview/widget/RecyclerView$LayoutManager;
.param p2, "velocityX" # I
.param p3, "velocityY" # I
.line 66
instance-of v0, p1, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;
const/4 v1, -0x1
if-nez v0, :cond_6
.line 67
return v1
.line 70
:cond_6
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getItemCount()I
move-result v0
.line 71
.local v0, "itemCount":I
if-nez v0, :cond_d
.line 72
return v1
.line 75
:cond_d
invoke-virtual {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->findSnapView(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroid/view/View;
move-result-object v2
.line 76
.local v2, "currentView":Landroid/view/View;
if-nez v2, :cond_14
.line 77
return v1
.line 80
:cond_14
invoke-virtual {p1, v2}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->getPosition(Landroid/view/View;)I
move-result v3
.line 81
.local v3, "currentPosition":I
if-ne v3, v1, :cond_1b
.line 82
return v1
.line 85
:cond_1b
move-object v4, p1
check-cast v4, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;
.line 90
.local v4, "vectorProvider":Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;
add-int/lit8 v5, v0, -0x1
invoke-interface {v4, v5}, Landroidx/recyclerview/widget/RecyclerView$SmoothScroller$ScrollVectorProvider;->computeScrollVectorForPosition(I)Landroid/graphics/PointF;
move-result-object v5
.line 91
.local v5, "vectorForEnd":Landroid/graphics/PointF;
if-nez v5, :cond_27
.line 93
return v1
.line 97
:cond_27
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollHorizontally()Z
move-result v6
const/4 v7, 0x0
const/4 v8, 0x0
if-eqz v6, :cond_40
.line 98
nop
.line 99
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getHorizontalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v6
.line 98
invoke-direct {p0, p1, v6, p2, v8}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I
move-result v6
.line 100
.local v6, "hDeltaJump":I
iget v9, v5, Landroid/graphics/PointF;->x:F
cmpg-float v9, v9, v7
if-gez v9, :cond_41
.line 101
neg-int v6, v6
goto :goto_41
.line 104
.end local v6 # "hDeltaJump":I
:cond_40
const/4 v6, 0x0
.line 106
.restart local v6 # "hDeltaJump":I
:cond_41
:goto_41
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z
move-result v9
if-eqz v9, :cond_58
.line 107
nop
.line 108
invoke-direct {p0, p1}, Landroidx/recyclerview/widget/LinearSnapHelper;->getVerticalHelper(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;)Landroidx/recyclerview/widget/OrientationHelper;
move-result-object v9
.line 107
invoke-direct {p0, p1, v9, v8, p3}, Landroidx/recyclerview/widget/LinearSnapHelper;->estimateNextPositionDiffForFling(Landroidx/recyclerview/widget/RecyclerView$LayoutManager;Landroidx/recyclerview/widget/OrientationHelper;II)I
move-result v8
.line 109
.local v8, "vDeltaJump":I
iget v9, v5, Landroid/graphics/PointF;->y:F
cmpg-float v7, v9, v7
if-gez v7, :cond_59
.line 110
neg-int v8, v8
goto :goto_59
.line 113
.end local v8 # "vDeltaJump":I
:cond_58
const/4 v8, 0x0
.line 116
.restart local v8 # "vDeltaJump":I
:cond_59
:goto_59
invoke-virtual {p1}, Landroidx/recyclerview/widget/RecyclerView$LayoutManager;->canScrollVertically()Z
move-result v7
if-eqz v7, :cond_61
move v7, v8
goto :goto_62
:cond_61
move v7, v6
.line 117
.local v7, "deltaJump":I
:goto_62
if-nez v7, :cond_65
.line 118
return v1
.line 121
:cond_65
add-int v1, v3, v7
.line 122
.local v1, "targetPos":I
if-gez v1, :cond_6a
.line 123
const/4 v1, 0x0
.line 125
:cond_6a
if-lt v1, v0, :cond_6e
.line 126
add-int/lit8 v1, v0, -0x1
.line 128
:cond_6e
return v1
.end method