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VGParallaxHeaderModeBottomFill mode added #33

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VGParallaxHeaderModeBottomFill mode added #33

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1 change: 1 addition & 0 deletions VGParallaxHeader/UIScrollView+VGParallaxHeader.h
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Original file line number Diff line number Diff line change
Expand Up @@ -12,6 +12,7 @@ typedef NS_ENUM(NSInteger, VGParallaxHeaderMode) {
VGParallaxHeaderModeFill,
VGParallaxHeaderModeTop,
VGParallaxHeaderModeTopFill,
VGParallaxHeaderModeBottomFill,
};

typedef NS_ENUM(NSInteger, VGParallaxHeaderStickyViewPosition) {
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27 changes: 27 additions & 0 deletions VGParallaxHeader/UIScrollView+VGParallaxHeader.m
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Original file line number Diff line number Diff line change
Expand Up @@ -256,6 +256,9 @@ - (void)setupContentViewMode
case VGParallaxHeaderModeTopFill:
[self addContentViewModeTopFillConstraints];
break;
case VGParallaxHeaderModeBottomFill:
[self addContentViewModeBottomFillConstraints];
break;
case VGParallaxHeaderModeCenter:
default:
[self addContentViewModeCenterConstraints];
Expand Down Expand Up @@ -364,6 +367,30 @@ - (void)addContentViewModeTopFillConstraints
self.insetAwareSizeConstraint.priority = UILayoutPriorityDefaultHigh;
}


- (void)addContentViewModeBottomFillConstraints
{
[self.contentView autoPinEdgeToSuperviewEdge:ALEdgeLeft
withInset:0];
[self.contentView autoPinEdgeToSuperviewEdge:ALEdgeRight
withInset:0];

NSArray *array = [self.contentView autoPinEdgesToSuperviewEdgesWithInsets:UIEdgeInsetsMake(self.originalTopInset, 0, 0, 0)
excludingEdge:ALEdgeTop];
self.insetAwarePositionConstraint = [array firstObject];

NSLayoutConstraint *constraint = [self.contentView autoSetDimension:ALDimensionHeight
toSize:self.originalHeight
relation:NSLayoutRelationGreaterThanOrEqual];
constraint.priority = UILayoutPriorityRequired;

self.insetAwareSizeConstraint = [self.contentView autoMatchDimension:ALDimensionHeight
toDimension:ALDimensionHeight
ofView:self.containerView
withOffset:-self.originalTopInset];
self.insetAwareSizeConstraint.priority = UILayoutPriorityDefaultHigh;
}

- (void)addContentViewModeCenterConstraints
{
[self.contentView autoPinEdgeToSuperviewEdge:ALEdgeLeft
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