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Added Shadow with option + Improved Interface Orientation Behavior with new Options #26

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Added Shadow with option + Improved Interface Orientation Behavior with new Options #26

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0abd878
added shadow and option for Views
Jeehut Nov 26, 2014
2dc52e6
interface orientation improvements (fixes + more options)
Jeehut Nov 27, 2014
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7 changes: 6 additions & 1 deletion APParallaxHeader/UIScrollView+APParallaxHeader.h
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Original file line number Diff line number Diff line change
Expand Up @@ -14,9 +14,15 @@

@interface UIScrollView (APParallaxHeader)

- (void)addParallaxWithImage:(UIImage *)image portraitHeight:(CGFloat)portraitHeight landscapeHeight:(CGFloat)landscapeHeight andShadow:(BOOL)shadow;
- (void)addParallaxWithImage:(UIImage *)image heightRatio:(CGFloat)heightRatio andShadow:(BOOL)shadow;
- (void)addParallaxWithImage:(UIImage *)image andHeight:(CGFloat)height andShadow:(BOOL)shadow;
- (void)addParallaxWithImage:(UIImage *)image andHeight:(CGFloat)height;
- (void)addParallaxWithView:(UIView*)view portraitHeight:(CGFloat)portraitHeight landscapeHeight:(CGFloat)landscapeHeight andShadow:(BOOL)shadow;
- (void)addParallaxWithView:(UIView*)view heightRatio:(CGFloat)heightRatio andShadow:(BOOL)shadow;
- (void)addParallaxWithView:(UIView*)view andHeight:(CGFloat)height andShadow:(BOOL)shadow;
- (void)addParallaxWithView:(UIView*)view andHeight:(CGFloat)height;
- (void)rotateParallaxViewToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation;

@property (nonatomic, strong, readonly) APParallaxView *parallaxView;
@property (nonatomic, assign) BOOL showsParallax;
Expand All @@ -40,7 +46,6 @@ typedef NS_ENUM(NSUInteger, APParallaxTrackingState) {
@property (nonatomic, strong) UIImageView *imageView;
@property (nonatomic, strong) UIView *currentSubView;
@property (nonatomic, strong) APParallaxShadowView *shadowView;
@property (nonatomic, strong) UIView *customView;

- (id)initWithFrame:(CGRect)frame andShadow:(BOOL)shadow;

Expand Down
205 changes: 154 additions & 51 deletions APParallaxHeader/UIScrollView+APParallaxHeader.m
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Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -15,7 +15,9 @@ @interface APParallaxView ()

@property (nonatomic, weak) UIScrollView *scrollView;
@property (nonatomic, readwrite) CGFloat originalTopInset;
@property (nonatomic) CGFloat parallaxHeight;
@property (nonatomic) CGFloat parallaxPortraitHeight;
@property (nonatomic) CGFloat parallaxLandscapeHeight;
@property (nonatomic) CGFloat heightRatio;

@property(nonatomic, assign) BOOL isObserving;

Expand All @@ -35,6 +37,11 @@ - (void)addParallaxWithImage:(UIImage *)image andHeight:(CGFloat)height {
}

- (void)addParallaxWithImage:(UIImage *)image andHeight:(CGFloat)height andShadow:(BOOL)shadow {
[self addParallaxWithImage:image portraitHeight:height landscapeHeight:height andShadow:shadow];
}

- (void)addParallaxWithImage:(UIImage *)image heightRatio:(CGFloat)heightRatio andShadow:(BOOL)shadow
{
if(self.parallaxView) {
if(self.parallaxView.currentSubView) {
[self.parallaxView.currentSubView removeFromSuperview];
Expand All @@ -43,53 +50,180 @@ - (void)addParallaxWithImage:(UIImage *)image andHeight:(CGFloat)height andShado
}
else
{
APParallaxView *parallaxView = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width*2, height) andShadow:shadow];
CGFloat heightByRatio = heightRatio * self.bounds.size.width;

APParallaxView *view = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, heightRatio) andShadow:shadow];
[view setClipsToBounds:YES];
[view.imageView setImage:image];

view.scrollView = self;
view.heightRatio = heightRatio;
[self addSubview:view];

view.originalTopInset = self.contentInset.top;

UIEdgeInsets newInset = self.contentInset;
newInset.top = heightByRatio;
self.contentInset = newInset;

self.parallaxView = view;
self.showsParallax = YES;
}
}

- (void)addParallaxWithImage:(UIImage *)image portraitHeight:(CGFloat)portraitHeight landscapeHeight:(CGFloat)landscapeHeight andShadow:(BOOL)shadow {
if(self.parallaxView) {
if(self.parallaxView.currentSubView) {
[self.parallaxView.currentSubView removeFromSuperview];
}
[self.parallaxView.imageView setImage:image];
}
else
{
CGFloat heightForCurrentOrientation;
if (UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
heightForCurrentOrientation = landscapeHeight;
} else {
heightForCurrentOrientation = portraitHeight;
}

APParallaxView *view = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, heightForCurrentOrientation) andShadow:shadow];
[view setClipsToBounds:YES];
[view.imageView setImage:image];

view.scrollView = self;
view.parallaxLandscapeHeight = landscapeHeight;
view.parallaxPortraitHeight = portraitHeight;
view.heightRatio = -1;
[self addSubview:view];

view.originalTopInset = self.contentInset.top;

UIEdgeInsets newInset = self.contentInset;
newInset.top = heightForCurrentOrientation;
self.contentInset = newInset;

self.parallaxView = view;
self.showsParallax = YES;
}
}

- (void)addParallaxWithView:(UIView*)view andHeight:(CGFloat)height {
[self addParallaxWithView:view andHeight:height andShadow:YES];
}

- (void)addParallaxWithView:(UIView*)view andHeight:(CGFloat)height andShadow:(BOOL)shadow {
[self addParallaxWithView:view portraitHeight:height landscapeHeight:height andShadow:shadow];
}

- (void)addParallaxWithView:(UIView *)view heightRatio:(CGFloat)heightRatio andShadow:(BOOL)shadow {
if(self.parallaxView) {
[self.parallaxView.currentSubView removeFromSuperview];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[self.parallaxView addSubview:view];
}
else
{
CGFloat heightByRatio = heightRatio * self.bounds.size.width;

APParallaxView *parallaxView = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, heightByRatio) andShadow:YES];
[parallaxView setClipsToBounds:YES];
[parallaxView.imageView setImage:image];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[parallaxView addSubview:view];

// bring shadow to foreground
if (shadow) {
[parallaxView bringSubviewToFront:parallaxView.shadowView];
}

parallaxView.scrollView = self;
parallaxView.parallaxHeight = height;
parallaxView.heightRatio = heightRatio;
[self addSubview:parallaxView];

parallaxView.originalTopInset = self.contentInset.top;

UIEdgeInsets newInset = self.contentInset;
newInset.top = height;
newInset.top = heightByRatio;
self.contentInset = newInset;

self.parallaxView = parallaxView;
self.showsParallax = YES;
}
}

- (void)addParallaxWithView:(UIView*)view andHeight:(CGFloat)height {
- (void)addParallaxWithView:(UIView*)view portraitHeight:(CGFloat)portraitHeight landscapeHeight:(CGFloat)landscapeHeight andShadow:(BOOL)shadow {
if(self.parallaxView) {
[self.parallaxView.currentSubView removeFromSuperview];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[self.parallaxView setCustomView:view];
[self.parallaxView addSubview:view];
}
else
{
APParallaxView *parallaxView = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, height)];
CGFloat heightForCurrentOrientation;
if (UIInterfaceOrientationIsLandscape([UIApplication sharedApplication].statusBarOrientation)) {
heightForCurrentOrientation = landscapeHeight;
} else {
heightForCurrentOrientation = portraitHeight;
}

APParallaxView *parallaxView = [[APParallaxView alloc] initWithFrame:CGRectMake(0, 0, self.bounds.size.width, heightForCurrentOrientation) andShadow:YES];
[parallaxView setClipsToBounds:YES];
[view setAutoresizingMask:UIViewAutoresizingFlexibleWidth|UIViewAutoresizingFlexibleHeight];
[parallaxView addSubview:view];

[parallaxView setCustomView:view];
// bring shadow to foreground
if (shadow) {
[parallaxView bringSubviewToFront:parallaxView.shadowView];
}

parallaxView.scrollView = self;
parallaxView.parallaxHeight = height;
parallaxView.parallaxLandscapeHeight = landscapeHeight;
parallaxView.parallaxPortraitHeight = portraitHeight;
parallaxView.heightRatio = -1;
[self addSubview:parallaxView];

parallaxView.originalTopInset = self.contentInset.top;

UIEdgeInsets newInset = self.contentInset;
newInset.top = height;
newInset.top = heightForCurrentOrientation;
self.contentInset = newInset;

self.parallaxView = parallaxView;
self.showsParallax = YES;
}
}

- (void)rotateParallaxViewToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
if (self.parallaxView) {
if (self.parallaxView.heightRatio > 0) {
CGFloat heightByRatio = self.bounds.size.width * self.parallaxView.heightRatio;

CGRect frame = self.parallaxView.frame;
frame.size.height = heightByRatio;
self.parallaxView.frame = frame;

UIEdgeInsets newInset = self.contentInset;
newInset.top = heightByRatio;
self.contentInset = newInset;
} else {
CGFloat heightForCurrentOrientation;
if (UIInterfaceOrientationIsLandscape(interfaceOrientation)) {
heightForCurrentOrientation = self.parallaxView.parallaxLandscapeHeight;
} else {
heightForCurrentOrientation = self.parallaxView.parallaxPortraitHeight;
}

CGRect frame = self.parallaxView.frame;
frame.size.height = heightForCurrentOrientation;
self.parallaxView.frame = frame;

UIEdgeInsets newInset = self.contentInset;
newInset.top = heightForCurrentOrientation;
self.contentInset = newInset;
}
}
}

- (void)setParallaxView:(APParallaxView *)parallaxView {
objc_setAssociatedObject(self, &UIScrollViewParallaxView,
parallaxView,
Expand Down Expand Up @@ -183,27 +317,21 @@ - (id)initWithFrame:(CGRect)frame {
- (id)initWithFrame:(CGRect)frame andShadow:(BOOL)shadow {
if(self = [super initWithFrame:frame]) {

[self setBackgroundColor:[UIColor redColor]];

// default styling values
[self setAutoresizingMask:UIViewAutoresizingFlexibleHeight];
[self setAutoresizingMask:UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth];
[self setState:APParallaxTrackingActive];
[self setAutoresizesSubviews:YES];

self.imageView = [[UIImageView alloc] init];
self.imageView = [[UIImageView alloc] initWithFrame:CGRectMake(0, 0, CGRectGetWidth(frame), CGRectGetHeight(frame))];
[self.imageView setAutoresizingMask:UIViewAutoresizingFlexibleHeight|UIViewAutoresizingFlexibleWidth];
[self.imageView setContentMode:UIViewContentModeScaleAspectFill];
[self.imageView setClipsToBounds:YES];
[self addSubview:self.imageView];

[self.imageView setTranslatesAutoresizingMaskIntoConstraints:NO];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[imageView]|" options:0 metrics:nil views:@{@"imageView" : self.imageView}]];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[imageView]|" options:0 metrics:nil views:@{@"imageView" : self.imageView}]];

if (shadow) {
self.shadowView = [[APParallaxShadowView alloc] init];
self.shadowView = [[APParallaxShadowView alloc] initWithFrame:CGRectMake(0, CGRectGetMaxY(frame)-8, CGRectGetWidth(frame), 8)];
[self.shadowView setAutoresizingMask:UIViewAutoresizingFlexibleTopMargin|UIViewAutoresizingFlexibleWidth];
[self addSubview:self.shadowView];
[self.shadowView setTranslatesAutoresizingMaskIntoConstraints:NO];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:[shadowView(8.0)]|" options:NSLayoutFormatAlignAllBottom metrics:nil views:@{@"shadowView" : self.shadowView}]];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[shadowView]|" options:0 metrics:nil views:@{@"shadowView" : self.shadowView}]];
}
}

Expand All @@ -229,38 +357,13 @@ - (void)addSubview:(UIView *)view {
self.currentSubView = view;
}

- (void)setCustomView:(UIView *)customView
{
if (_customView) {
[_customView removeFromSuperview];
}

_customView = customView;

[self addSubview:customView];
[customView setTranslatesAutoresizingMaskIntoConstraints:NO];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"H:|[customView]|" options:0 metrics:nil views:@{@"customView" : customView}]];
[self addConstraints:[NSLayoutConstraint constraintsWithVisualFormat:@"V:|[customView]|" options:0 metrics:nil views:@{@"customView" : customView}]];
}

- (void)layoutSubviews
{
[super layoutSubviews];

if (self.shadowView) {
[self bringSubviewToFront:self.shadowView];
}
}

#pragma mark - Observing

- (void)observeValueForKeyPath:(NSString *)keyPath ofObject:(id)object change:(NSDictionary *)change context:(void *)context {
if([keyPath isEqualToString:@"contentOffset"]) {
if([keyPath isEqualToString:@"contentOffset"])
[self scrollViewDidScroll:[[change valueForKey:NSKeyValueChangeNewKey] CGPointValue]];
}
else if([keyPath isEqualToString:@"frame"]) {
else if([keyPath isEqualToString:@"frame"])
[self layoutSubviews];
}
}

- (void)scrollViewDidScroll:(CGPoint)contentOffset {
Expand Down