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share your code
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share your code
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Brian Gesiak
@modocache
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github.com/Quick/Quick/
issues/300
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✨
BananaUIKit
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Series A
B
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Series
X
Y
Z
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abstractions
for what will change
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@interface BananaAlertView : UIAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText;
@end
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@interface BananaAlertView : UIAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText;
@end
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@interface BananaAlertView : UIAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText;
@end
tintColor:(UIColor *)tintColor;
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[BananaAlertView showWithTitleText:@"403 Error"
messageText:@"Forbidden banana."
dismissButtonText:@"Dang."];
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[BananaAlertView showWithTitleText:@"403 Error"
messageText:@"Forbidden banana."
dismissButtonText:@"Dang."];
No known class method for selector 'showWithTitleText:messageText:…'
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BananaUIKit
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BananaUIKit 2.0
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v1.0 v1.1 v2.0 v2.1 v2.2
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[BananaAlertView showWithTitleText:@"403 Error"
messageText:@"Forbidden banana."
dismissButtonText:@"Dang."];
No known class method for selector 'showWithTitleText:messageText:…'
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@interface BananaAlertView : UIAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText;
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText
tintColor:(UIColor *)tintColor;
@end
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@interface BananaAlertView : UIAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText;
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText
tintColor:(UIColor *)tintColor;
@end
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@implementation BananaAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText {
[self showWithTitleText:titleText
messageText:messageText
dismissButtonText:dismissButtonText
tintColor:[UIColor yellowColor]];
}
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText
tintColor:(UIColor *)tintColor {
// ...
}
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@implementation BananaAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText {
[self showWithTitleText:titleText
messageText:messageText
dismissButtonText:dismissButtonText
tintColor:[UIColor yellowColor]];
}
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText
tintColor:(UIColor *)tintColor {
// ...
}
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@implementation BananaAlertView
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText {
[self showWithTitleText:titleText
messageText:messageText
dismissButtonText:dismissButtonText
tintColor:[UIColor yellowColor]];
}
+ (void)showWithTitleText:(NSString *)titleText
messageText:(NSString *)messageText
dismissButtonText:(NSString *)dismissButtonText
tintColor:(UIColor *)tintColor {
// ...
}
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[BananaAlertView showWithTitleText:@"403 Error"
messageText:@"Forbidden banana."
dismissButtonText:@"Dang."];
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[BananaAlertView showWithTitleText:@"403 Error"
messageText:@"Forbidden banana."
dismissButtonText:@"Dang."];
[BananaAlertView showWithTitleText:@"500 Error"
messageText:@"Internal banana."
dismissButtonText:@"Rats."
tintColor:[UIColor redColor]];
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public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String) {
// ...
}
}
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public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String) {
// ...
}
}
dismissButtonText: String,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
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public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String,
dismissButtonCallback: ButtonCallback,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
}
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public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String,
dismissButtonCallback: ButtonCallback,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
}
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public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String,
dismissButtonCallback: ButtonCallback,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
}
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
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public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String,
dismissButtonCallback: ButtonCallback,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
}
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public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
dismissButtonText: String,
dismissButtonCallback: ButtonCallback,
tintColor: UIColor = UIColor.yellowColor()) {
// ...
}
}
(buttonIndex: Int, buttonTitle: String) -> ()
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
Cannot invoke 'show' with an argument list of type '(String, message…
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
Cannot invoke 'show' with an argument list of type '(String, message…
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parameter objects
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonText: String
}
public typealias ButtonCallback =
(buttonIndex: Int) -> ()
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonText: String
}
public typealias ButtonCallback =
(buttonIndex: Int) -> ()
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonText: String
}
public typealias ButtonCallback =
(buttonIndex: Int) -> ()
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { (buttonIndex: Int) in
// ...
},
tintColor: UIColor.redColor()
)
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
let totalButtonCount: Int
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
let totalButtonCount: Int
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
tintColor: UIColor.redColor()
)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
tintColor: UIColor.redColor()
)
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
let totalButtonCount: Int
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
let totalButtonCount: Int
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
@availability(*, deprecated=2.0)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
tintColor: UIColor.redColor()
)
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BananaAlertView.show(
"500 Error",
messageText: "Internal banana error.",
dismissButtonText: "Rats.",
dismissButtonCallback: { parameters in
if parameters.buttonText == "Rats." {
// ...
}
},
tintColor: UIColor.redColor()
)
'buttonText' was deprecated in * version 2.0
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public struct AlertViewOptions {
public let dismissButtonText: String
public let tintColor: UIColor
public let animationDuration: NSTimeInterval
}
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
options: AlertViewOptions) {
// ...
}
}
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public struct AlertViewOptions {
public let dismissButtonText: String
public let tintColor: UIColor
public let animationDuration: NSTimeInterval
}
public class BananaAlertView {
public static func show(
titleText: String,
messageText: String,
options: AlertViewOptions) {
// ...
}
}
= AlertViewOptions()) {
= "OK"
= UIColor.yellowColor()
= 1
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#
U+1F645 KENT BECK
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#
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future-proof your API
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more overhead
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don’t force users to choose
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@interface JVFloatLabeledTextField : UITextField
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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@interface JVFloatLabeledTextField : UITextField
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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CGRect frame = CGRectMake(0.f, 0.f, 100.f, 44.f);
JVFloatLabeledTextField *textField =
[[JVFloatLabeledTextField alloc] initWithFrame:frame];
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CGRect frame = CGRectMake(0.f, 0.f, 100.f, 44.f);
JVFloatLabeledTextField *textField =
[[JVFloatLabeledTextField alloc] initWithFrame:frame];
textField.placeholder = @"Price";
textField.floatingLabelYPadding = 10.f;
textField.floatingLabelTextColor = [UIColor blueColor];
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CGRect frame = CGRectMake(0.f, 0.f, 100.f, 44.f);
JVFloatLabeledTextField *textField =
[[JVFloatLabeledTextField alloc] initWithFrame:frame];
textField.placeholder = @"Price";
textField.floatingLabelYPadding = 10.f;
textField.floatingLabelTextColor = [UIColor blueColor];
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subclasses force people to
use your class exclusively
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@interface UITextField (JVFloatLabeledTextField)
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
@interface JVFloatLabeledTextField : UITextField
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@interface UITextField (JVFloatLabeledTextField)
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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@interface UITextField (JVFloatLabeledTextField)
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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@interface UITextField (JVFloatLabeledTextField) {
CGFloat _floatingLabelYPadding;
}
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@end
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@interface UITextField (JVFloatLabeledTextField) {
CGFloat _floatingLabelYPadding;
}
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@end
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const void * const YPaddingKey = &YPaddingKey;
- (void)setFloatingLabelYPadding:(CGFloat)yPadding {
objc_setAssociatedObject(
self,
YPaddingKey,
@(yPadding),
OBJC_ASSOCIATION_RETAIN_NONATOMIC
);
}
- (CGFloat)floatingLabelYPadding {
return [objc_getAssociatedObject(self, YPaddingKey)
floatValue];
}
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const void * const YPaddingKey = &YPaddingKey;
- (void)setFloatingLabelYPadding:(CGFloat)yPadding {
objc_setAssociatedObject(
self,
YPaddingKey,
@(yPadding),
OBJC_ASSOCIATION_RETAIN_NONATOMIC
);
}
- (CGFloat)floatingLabelYPadding {
return [objc_getAssociatedObject(self, YPaddingKey)
floatValue];
}
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const void * const YPaddingKey = &YPaddingKey;
- (void)setFloatingLabelYPadding:(CGFloat)yPadding {
objc_setAssociatedObject(
self,
YPaddingKey,
@(yPadding),
OBJC_ASSOCIATION_RETAIN_NONATOMIC
);
}
- (CGFloat)floatingLabelYPadding {
return [objc_getAssociatedObject(self, YPaddingKey)
floatValue];
}
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@interface UITextField (JVFloatLabeledTextField)
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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@interface UITextField (JVFloatLabeledTextField)
@property (nonatomic, assign)
CGFloat floatingLabelYPadding UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIFont *floatingLabelFont UI_APPEARANCE_SELECTOR;
@property (nonatomic, strong)
UIColor *floatingLabelTextColor UI_APPEARANCE_SELECTOR;
@end
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const void * const YPaddingKey = &YPaddingKey;
const void * const FontKey = &FontKey;
const void * const TextColorKey = &TextColorKey;
- (void)setFloatingLabelYPadding:(CGFloat)yPadding {
objc_setAssociatedObject(
self,
YPaddingKey,
@(yPadding),
OBJC_ASSOCIATION_RETAIN_NONATOMIC
);
}
- (CGFloat)floatingLabelYPadding {
return [objc_getAssociatedObject(self, YPaddingKey)
floatValue];
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}
- (UIFont *)floatingLabelFont {
return objc_getAssociatedObject(self, FontKey);
}
- (void)setFloatingLabelTextColor:(UIColor *)color {
objc_setAssociatedObject(
self,
TextColorKey,
color,
OBJC_ASSOCIATION_RETAIN_NONATOMIC
);
}
- (UIColor *)floatingLabelTextColor {
return objc_getAssociatedObject(self, TextColorKey);
}
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extension UITextField {
var floatingLabelYPadding: CGFloat {
set {
objc_setAssociatedObject(
self,
&YPaddingKey,
newValue,
objc_AssociationPolicy(OBJC_ASSOCIATION_ASSIGN)
)
}
get {
if let padding = objc_getAssociatedObject(
self, &YPaddingKey) as? CGFloat {
return padding
} else {
return 0
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extension UITextField {
var floatingLabelYPadding: CGFloat {
set {
objc_setAssociatedObject(
self,
&YPaddingKey,
newValue,
objc_AssociationPolicy(OBJC_ASSOCIATION_ASSIGN)
)
}
get {
if let padding = objc_getAssociatedObject(
self, &YPaddingKey) as? CGFloat {
return padding
} else {
return 0
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&TextColorKey,
newValue,
objc_AssociationPolicy(
OBJC_ASSOCIATION_RETAIN_NONATOMIC)
)
}
get {
if let color = objc_getAssociatedObject(
self, &TextColorKey) as? UIColor {
return color
} else {
return UIColor.blackColor()
}
}
}
}
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doesn’t scale
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// objc4-532/runtime/objc-references.mm
// class AssociationsManager manages a lock / hash table
// singleton pair. Allocating an instance acquires the
// lock, and calling its assocations() method
// lazily allocates it.
class AssociationsManager {
static OSSpinLock _lock;
// associative references:
// object pointer -> PtrPtrHashMap.
static AssociationsHashMap *_map;
public:
AssociationsManager() { OSSpinLockLock(&_lock); }
~AssociationsManager() { OSSpinLockUnlock(&_lock); }
};
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CGFloat *floatingLabelYPadding
UIFont *floatingLabelFont
UIColor *floatingLabelTextColor
UIColor *floatingLabelActiveColor
BOOL animateEvenIfNotFirstResponder
UITextField
(JVFloatLabeledTextField)
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CGFloat *floatingLabelYPadding
UIFont *floatingLabelFont
UIColor *floatingLabelTextColor
UIColor *floatingLabelActiveColor
BOOL animateEvenIfNotFirstResponder
JVFloatLabeledOptions
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CGFloat *floatingLabelYPadding
UIFont *floatingLabelFont
UIColor *floatingLabelTextColor
UIColor *floatingLabelActiveColor
BOOL animateEvenIfNotFirstResponder
JVFloatLabeledOptions
UITextField
(JVFloatLabeledTextField)
JVFloatLabeledOptions *options
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extension UITextField {
var options: FloatLabelOptions {
get {
if let options = objc_getAssociatedObject(
self, &OptionsKey) as? FloatLabelOptions {
return options
} else {
return FloatLabelOptions()
}
}
set {
// ...
}
}
}
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extension UITextField {
var options: FloatLabelOptions {
get {
if let options = objc_getAssociatedObject(
self, &OptionsKey) as? FloatLabelOptions {
return options
} else {
return FloatLabelOptions()
}
}
set {
// ...
}
}
}
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extension UITextField {
var options: FloatLabelOptions {
get {
if let options = objc_getAssociatedObject(
self, &OptionsKey) as? FloatLabelOptions {
return options
} else {
return FloatLabelOptions()
}
}
set {
// ...
}
}
}
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extension UITextField {
var options: FloatLabelOptions {
get {
if let options = objc_getAssociatedObject(
self, &OptionsKey) as? FloatLabelOptions {
return options
} else {
return FloatLabelOptions()
}
}
set {
// ...
}
}
}
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@objc class FloatLabelOptions {
let yPadding: CGFloat
let font: UIFont
let textColor: UIColor
// ...
}
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@objc class FloatLabelOptions {
let yPadding: CGFloat
let font: UIFont
let textColor: UIColor
// ...
}
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#
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compose multiple categories
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runtime sorcery
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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No content
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No content
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No content
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
switch state.direction {
case .Left:
self.bookmarkView.alpha = 0
self.dontBookmarkView.alpha = state.thresholdRatio
case .Right:
self.bookmarkView.alpha = state.thresholdRatio
self.dontBookmarkView.alpha = 0
}
}
webView.mdc_swipeToChooseSetup(options)
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parameter objects
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
let totalButtonCount: Int
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
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public struct ButtonCallbackParameters {
let buttonIndex: Int
let buttonTitle: String
let totalButtonCount: Int
}
public typealias ButtonCallback =
(parameters: ButtonCallbackParameters) -> ()
@availability(*, deprecated=2.0)
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extensions vs. subclasses
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extension UITextField {
var options: FloatLabelOptions {
get {
// ...
}
set {
// ...
}
}
}
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configuration objects
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
// ...
}
webView.mdc_swipeToChooseSetup(options)
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prefer immutability
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let options = MDCSwipeOptions()
options.threshold = 130
options.onPan = { state in
// ...
}
webView.mdc_swipeToChooseSetup(options)
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- github.com/Quick/Quick
- github.com/modocache/MDCSwipeToChoose
@modocache