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Adding a UIView contentView to the alert for generic usage #37

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Adding a UIView contentView to the alert for generic usage #37

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8 changes: 4 additions & 4 deletions SIAlertView/SIAlertView.h
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Original file line number Diff line number Diff line change
Expand Up @@ -39,6 +39,7 @@ typedef void(^SIAlertViewHandler)(SIAlertView *alertView);

@property (nonatomic, copy) NSString *title;
@property (nonatomic, copy) NSString *message;
@property (nonatomic, strong) UIView *contentView;

@property (nonatomic, assign) SIAlertViewTransitionStyle transitionStyle; // default is SIAlertViewTransitionStyleSlideFromBottom
@property (nonatomic, assign) SIAlertViewBackgroundStyle backgroundStyle; // default is SIAlertViewButtonTypeGradient
Expand All @@ -50,6 +51,8 @@ typedef void(^SIAlertViewHandler)(SIAlertView *alertView);

@property (nonatomic, readonly, getter = isVisible) BOOL visible;

@property (nonatomic, readonly, getter = isParallaxEffectEnabled) BOOL enabledParallaxEffect;

@property (nonatomic, strong) UIColor *viewBackgroundColor NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong) UIColor *titleColor NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong) UIColor *messageColor NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;
Expand All @@ -62,11 +65,8 @@ typedef void(^SIAlertViewHandler)(SIAlertView *alertView);
@property (nonatomic, assign) CGFloat cornerRadius NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; // default is 2.0
@property (nonatomic, assign) CGFloat shadowRadius NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR; // default is 8.0

- (void)setDefaultButtonImage:(UIImage *)defaultButtonImage forState:(UIControlState)state NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;
- (void)setCancelButtonImage:(UIImage *)cancelButtonImage forState:(UIControlState)state NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;
- (void)setDestructiveButtonImage:(UIImage *)destructiveButtonImage forState:(UIControlState)state NS_AVAILABLE_IOS(5_0) UI_APPEARANCE_SELECTOR;

- (id)initWithTitle:(NSString *)title andMessage:(NSString *)message;
- (id)initWithTitle:(NSString *)title andMessage:(NSString *)message andContentView:(UIView *)contentView;
- (void)addButtonWithTitle:(NSString *)title type:(SIAlertViewButtonType)type handler:(SIAlertViewHandler)handler;

- (void)show;
Expand Down
161 changes: 107 additions & 54 deletions SIAlertView/SIAlertView.m
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Original file line number Diff line number Diff line change
Expand Up @@ -24,7 +24,7 @@
#define CONTENT_PADDING_TOP 12
#define CONTENT_PADDING_BOTTOM 10
#define BUTTON_HEIGHT 44
#define CONTAINER_WIDTH 300
#define CONTAINER_WIDTH 290

const UIWindowLevel UIWindowLevelSIAlert = 1999.0; // don't overlap system's alert
const UIWindowLevel UIWindowLevelSIAlertBackground = 1998.0; // below the alert window
Expand Down Expand Up @@ -215,11 +215,21 @@ - (id)initWithTitle:(NSString *)title andMessage:(NSString *)message
if (self) {
_title = title;
_message = message;
_enabledParallaxEffect = YES;
self.items = [[NSMutableArray alloc] init];
}
return self;
}

- (id)initWithTitle:(NSString *)title andMessage:(NSString *)message andContentView:(UIView *)contentView
{
self = [self initWithTitle:title andMessage:message];
if (self) {
_contentView = contentView;
}
return self;
}

#pragma mark - Class methods

+ (NSMutableArray *)sharedQueue
Expand Down Expand Up @@ -295,6 +305,12 @@ - (void)setMessage:(NSString *)message
[self invalidateLayout];
}

- (void)setContentView:(UIView *)contentView
{
_containerView = contentView;
[self invalidateLayout];
}

#pragma mark - Public

- (void)addButtonWithTitle:(NSString *)title type:(SIAlertViewButtonType)type handler:(SIAlertViewHandler)handler
Expand Down Expand Up @@ -361,6 +377,9 @@ - (void)show
self.didShowHandler(self);
}
[[NSNotificationCenter defaultCenter] postNotificationName:SIAlertViewDidShowNotification object:self userInfo:nil];
#ifdef __IPHONE_7_0
[self addParallaxEffect];
#endif

[SIAlertView setAnimating:NO];

Expand All @@ -385,6 +404,9 @@ - (void)dismissAnimated:(BOOL)animated cleanup:(BOOL)cleanup
self.willDismissHandler(self);
}
[[NSNotificationCenter defaultCenter] postNotificationName:SIAlertViewWillDismissNotification object:self userInfo:nil];
#ifdef __IPHONE_7_0
[self removeParallaxEffect];
#endif
}

void (^dismissComplete)(void) = ^{
Expand Down Expand Up @@ -657,7 +679,19 @@ - (void)validateLayout
self.containerView.layer.shadowPath = [UIBezierPath bezierPathWithRoundedRect:self.containerView.bounds cornerRadius:self.containerView.layer.cornerRadius].CGPath;

CGFloat y = CONTENT_PADDING_TOP;
if (self.contentView) {
if (y > CONTENT_PADDING_TOP) {
y += GAP;
}
CGFloat height = self.contentView.bounds.size.height;
self.contentView.frame = CGRectMake(CONTENT_PADDING_LEFT, y, self.containerView.bounds.size.width - CONTENT_PADDING_LEFT * 2, height);
y += height;
}

if (self.titleLabel) {
if (y > CONTENT_PADDING_TOP) {
y += GAP;
}
self.titleLabel.text = self.title;
CGFloat height = [self heightForTitleLabel];
self.titleLabel.frame = CGRectMake(CONTENT_PADDING_LEFT, y, self.containerView.bounds.size.width - CONTENT_PADDING_LEFT * 2, height);
Expand Down Expand Up @@ -711,6 +745,12 @@ - (CGFloat)preferredHeight
}
height += [self heightForMessageLabel];
}
if (self.contentView) {
if (height > CONTENT_PADDING_TOP) {
height += GAP;
}
height += self.contentView.frame.size.height;
}
if (self.items.count > 0) {
if (height > CONTENT_PADDING_TOP) {
height += GAP;
Expand All @@ -725,23 +765,25 @@ - (CGFloat)preferredHeight
}
}
height += CONTENT_PADDING_BOTTOM;

return height;
}

- (CGFloat)heightForTitleLabel
{
if (self.titleLabel) {
CGSize size = [self.title sizeWithFont:self.titleLabel.font
minFontSize:
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_6_0
self.titleLabel.font.pointSize * self.titleLabel.minimumScaleFactor
#else
self.titleLabel.minimumFontSize
#endif
actualFontSize:nil
forWidth:CONTAINER_WIDTH - CONTENT_PADDING_LEFT * 2
lineBreakMode:self.titleLabel.lineBreakMode];
return size.height;

UIFont *font = self.titleLabel.font;

CGFloat constrainedHeight = font.lineHeight;

NSDictionary *fontAtts = @{NSFontAttributeName : font};

CGRect rect = [self.title boundingRectWithSize:CGSizeMake(CONTAINER_WIDTH - CONTENT_PADDING_LEFT * 2, constrainedHeight)
options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesLineFragmentOrigin
attributes:fontAtts
context:nil];
return rect.size.height;
}
return 0;
}
Expand All @@ -750,11 +792,19 @@ - (CGFloat)heightForMessageLabel
{
CGFloat minHeight = MESSAGE_MIN_LINE_COUNT * self.messageLabel.font.lineHeight;
if (self.messageLabel) {
CGFloat maxHeight = MESSAGE_MAX_LINE_COUNT * self.messageLabel.font.lineHeight;
CGSize size = [self.message sizeWithFont:self.messageLabel.font
constrainedToSize:CGSizeMake(CONTAINER_WIDTH - CONTENT_PADDING_LEFT * 2, maxHeight)
lineBreakMode:self.messageLabel.lineBreakMode];
return MAX(minHeight, size.height);

UIFont *font = self.messageLabel.font;

CGFloat maxHeight = MESSAGE_MAX_LINE_COUNT * font.lineHeight;

NSDictionary *fontAtts = @{NSFontAttributeName : font};

CGRect rect = [self.title boundingRectWithSize:CGSizeMake(CONTAINER_WIDTH - CONTENT_PADDING_LEFT * 2, maxHeight)
options:NSStringDrawingUsesLineFragmentOrigin|NSStringDrawingUsesLineFragmentOrigin
attributes:fontAtts
context:nil];

return MAX(minHeight, rect.size.height);
}
return minHeight;
}
Expand All @@ -766,6 +816,7 @@ - (void)setup
[self setupContainerView];
[self updateTitleLabel];
[self updateMessageLabel];
[self updateContentView];
[self setupButtons];
[self invalidateLayout];
}
Expand All @@ -776,6 +827,7 @@ - (void)teardown
self.containerView = nil;
self.titleLabel = nil;
self.messageLabel = nil;
self.contentView = nil;
[self.buttons removeAllObjects];
[self.alertWindow removeFromSuperview];
self.alertWindow = nil;
Expand Down Expand Up @@ -803,11 +855,7 @@ - (void)updateTitleLabel
self.titleLabel.font = self.titleFont;
self.titleLabel.textColor = self.titleColor;
self.titleLabel.adjustsFontSizeToFitWidth = YES;
#if __IPHONE_OS_VERSION_MIN_REQUIRED >= __IPHONE_6_0
self.titleLabel.minimumScaleFactor = 0.75;
#else
self.titleLabel.minimumFontSize = self.titleLabel.font.pointSize * 0.75;
#endif
[self.containerView addSubview:self.titleLabel];
#if DEBUG_LAYOUT
self.titleLabel.backgroundColor = [UIColor redColor];
Expand Down Expand Up @@ -844,6 +892,14 @@ - (void)updateMessageLabel
[self invalidateLayout];
}

- (void)updateContentView
{
if (self.contentView) {
[self.containerView addSubview:self.contentView];
}
[self invalidateLayout];
}

- (void)setupButtons
{
self.buttons = [[NSMutableArray alloc] initWithCapacity:self.items.count];
Expand Down Expand Up @@ -1024,48 +1080,45 @@ - (void)setDestructiveButtonColor:(UIColor *)buttonColor
[self setColor:buttonColor toButtonsOfType:SIAlertViewButtonTypeDestructive];
}


- (void)setDefaultButtonImage:(UIImage *)defaultButtonImage forState:(UIControlState)state
{
[self setButtonImage:defaultButtonImage forState:state andButtonType:SIAlertViewButtonTypeDefault];
}


- (void)setCancelButtonImage:(UIImage *)cancelButtonImage forState:(UIControlState)state
{
[self setButtonImage:cancelButtonImage forState:state andButtonType:SIAlertViewButtonTypeCancel];
}


- (void)setDestructiveButtonImage:(UIImage *)destructiveButtonImage forState:(UIControlState)state
{
[self setButtonImage:destructiveButtonImage forState:state andButtonType:SIAlertViewButtonTypeDestructive];
- (void)setColor:(UIColor *)color toButtonsOfType:(SIAlertViewButtonType)type {
for (NSUInteger i = 0; i < self.items.count; i++) {
SIAlertItem *item = self.items[i];
if(item.type == type) {
UIButton *button = self.buttons[i];
[button setTitleColor:color forState:UIControlStateNormal];
[button setTitleColor:[color colorWithAlphaComponent:0.8] forState:UIControlStateHighlighted];
}
}
}

# pragma mark -
# pragma mark Enable parallax effect (iOS7 only)

- (void)setButtonImage:(UIImage *)image forState:(UIControlState)state andButtonType:(SIAlertViewButtonType)type
#ifdef __IPHONE_7_0
- (void)addParallaxEffect
{
for (NSUInteger i = 0; i < self.items.count; i++)
if (_enabledParallaxEffect && NSClassFromString(@"UIInterpolatingMotionEffect"))
{
SIAlertItem *item = self.items[i];
if(item.type == type)
{
UIButton *button = self.buttons[i];
[button setBackgroundImage:image forState:state];
}
UIInterpolatingMotionEffect *effectHorizontal = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"position.x" type:UIInterpolatingMotionEffectTypeTiltAlongHorizontalAxis];
UIInterpolatingMotionEffect *effectVertical = [[UIInterpolatingMotionEffect alloc] initWithKeyPath:@"position.y" type:UIInterpolatingMotionEffectTypeTiltAlongVerticalAxis];
[effectHorizontal setMaximumRelativeValue:@(10.0f)];
[effectHorizontal setMinimumRelativeValue:@(-10.0f)];
[effectVertical setMaximumRelativeValue:@(20.0f)];
[effectVertical setMinimumRelativeValue:@(-20.0f)];
[self.containerView addMotionEffect:effectHorizontal];
[self.containerView addMotionEffect:effectVertical];
}
}


-(void)setColor:(UIColor *)color toButtonsOfType:(SIAlertViewButtonType)type {
for (NSUInteger i = 0; i < self.items.count; i++) {
SIAlertItem *item = self.items[i];
if(item.type == type) {
UIButton *button = self.buttons[i];
[button setTitleColor:color forState:UIControlStateNormal];
[button setTitleColor:[color colorWithAlphaComponent:0.8] forState:UIControlStateHighlighted];
}
- (void)removeParallaxEffect
{
if (_enabledParallaxEffect && NSClassFromString(@"UIInterpolatingMotionEffect"))
{
[self.containerView.motionEffects enumerateObjectsUsingBlock:^(id obj, NSUInteger idx, BOOL *stop) {
[self.containerView removeMotionEffect:obj];
}];
}
}
#endif

@end