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Robert Wijas
November 14, 2013
Programming
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120
UISS
Talk about my UISS library presented at Mobile Warsaw and CocoaHeads Cracow.
Robert Wijas
November 14, 2013
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Transcript
Attractive things work better… When you wash and wax a
car, it drives better, doesn’t it? Or at least feels like it does. David A. Norman
Attractive things work better… When you wash and wax a
car, it drives better, doesn’t it? Or at least feels like it does. David A. Norman
Robert Wijas
Robert Wijas
Robert Wijas
Robert Wijas
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UIAppearance on Steroids UISS
Quick introduction UIAppearance
Protocols @protocol UIAppearance <NSObject> ! + (id)appearance; ! + (id)appearanceWhenContainedIn:(Class
<UIAppearanceContainer>)ContainerClass, ... NS_REQUIRES_NIL_TERMINATION; ! @end ! ! @protocol UIAppearanceContainer <NSObject> @end
Properties - (void)setProperty:(PropertyType)property forAxis1:(IntegerType)axis1 axisN:(IntegerType)axisN; ! - (PropertyType)propertyForAxis1:(IntegerType)axis1 axisN:(IntegerType)axisN; #define
UI_APPEARANCE_SELECTOR
None
[[UIButton appearance] setTitleColor:[[UIColor whiteColor] colorWithAlphaComponent:0.800] forState:UIControlStateNormal]; [[UIButton appearance] setTitleColor:[UIColor whiteColor]
forState:UIControlStateHighlighted]; [[UIButton appearance] setBackgroundImage:[[UIImage imageNamed:@"button-background-normal"] resizableImageWithCapInsets:UIEdgeInsetsMake(0.0, 10.0, 0.0, 10.0)] forState:UIControlStateNormal]; [[UIButton appearance] setBackgroundImage:[[UIImage imageNamed:@"button-background-highlighted"] resizableImageWithCapInsets:UIEdgeInsetsMake(0.0, 10.0, 0.0, 10.0)] forState:UIControlStateHighlighted]; [[UILabel appearanceWhenContainedIn:[UIButton class], nil] setFont:[UIFont fontWithName:@"Copperplate-Bold" size:18.0]]; [[UIButton appearance] setTitleEdgeInsets:UIEdgeInsetsMake(1.0, 0.0, 0.0, 0.0)];
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UISS JSON Syntax
UISS JSON Syntax "UIButton":{ "titleColor:normal":["white", 0.8], "titleColor:highlighted":"white", ! "backgroundImage:normal": ["button-background-normal",
[0,10,0,10]], "backgroundImage:highlighted": ["button-background-highlighted", [0,10,0,10]], ! "titleEdgeInsets": [1,0,0,0], ! "UILabel":{ "font":["Copperplate-Bold", 18] } }
"UIButton":{ "titleColor:normal":["white", 0.8], "titleColor:highlighted":"white", ! "backgroundImage:normal": ["button-background-normal", [0,10,0,10]], "backgroundImage:highlighted": ["button-background-highlighted",
[0,10,0,10]], ! "titleEdgeInsets": [1,0,0,0], ! "UILabel":{ "font":["Copperplate-Bold", 18] } } UIAppearance objects and containment
"UIButton":{ "titleColor:normal":["white", 0.8], "titleColor:highlighted":"white", ! "backgroundImage:normal": ["button-background-normal", [0,10,0,10]], "backgroundImage:highlighted": ["button-background-highlighted",
[0,10,0,10]], ! "titleEdgeInsets": [1,0,0,0], ! "UILabel":{ "font":["Copperplate-Bold", 18] } } Properties
"UIButton":{ "titleColor:normal":["white", 0.8], "titleColor:highlighted":"white", ! "backgroundImage:normal": ["button-background-normal", [0,10,0,10]], "backgroundImage:highlighted": ["button-background-highlighted",
[0,10,0,10]], ! "titleEdgeInsets": [1,0,0,0], ! "UILabel":{ "font":["Copperplate-Bold", 18] } } Axis parameters
"clear" [UIColor clearColor] ! ["#ffffff", 0.5] [UIColor colorWithRed:255.0f green:255.0f blue:255.0f
alpha:0.5f] ! [0, 255, 255, 0.5] [UIColor colorWithRed:0.0f green:255.0f blue:255.0f alpha:0.5f] Colors
14 [UIFont systemFontOfSize:14.0f] ! ["bold", 14] [UIFont boldSystemFontOfSize:14.0f] ! ["Georgia-Italic",
12] [UIFont fontWithName:@"Georgia-Italic" size:12.0f] Fonts
"imageName" [UIImage imageNamed:@"imageName"] ! ["imageName", 1, 2, 3, 4] [[UIImage
imageNamed:@"imageName"] resizableImageWithCapInsets:UIEdgeInsetsMake(1, 2, 3, 4)] Images
"UINavigationBar":{ "Phone":{ "tintColor":"gray" }, "Pad":{ "tintColor":"lightGray" } } UI Idiom
Branches
"Variables":{ "tint":"blue", “toolbar”:{ "tintColor": "$tint" } }, "UINavigationBar":{ "tintColor": "$tint"
}, "UITabBar":{ "tintColor": "$tint" }, "UIToolbar":”$toolbar” Variables
"UISSDemoViewController":{ "-UIButton":{ "titleColor:normal":["white", 0.8], "titleColor:highlighted":"white" } } Comments
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Simple Setup
one line of code Simple Setup
Simple Setup [UISS configureWithDefaultJSONFile]; uiss.json
How to make it really cool?
How to make it really cool? Live updates
Remote Style [UISS configureWithDefaultJSONFile]
Remote Style [UISS configureWithURL:[NSURL URLWithString:@"http://localhost/uiss.json"]]
How-to Remote uiss.json
curl get.pow.cx | sh http://pow.cx
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UIAppearance - (NSMutableArray *)_appearanceInvocations;
Swizzling TaggingAppearanceGeneralSetterIMP ()
When the magic happens
[UIView(Hierarchy) addSubview:] When the magic happens
- (void)reloadAppearance { NSArray * windows = [UIApplication sharedApplication].windows; for
(UIWindow *window in windows) { for (UIView *view in window.subviews) { [view removeFromSuperview]; [window addSubview:view]; } } } Reload appearance
None
UIAppearance weakness Selectors
subclassing UIAppearance weakness Selectors
subclassing UIAppearance weakness custom properties Selectors
Alternatives
Alternatives
Alternatives https://github.com/tombenner/nui
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Layout
Layout Auto
attribute1 == multiplier × attribute2 + constant
attribute1 == multiplier × attribute2 + constant >= <= Left
Right Top Bottom Leading Trailing Width Height CenterX CenterY Baseline Left Right Top Bottom Leading Trailing Width Height CenterX CenterY Baseline @500
ASCII Art
|-[find]-[findNext]-[findField(>=20)]-| ASCII Art
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Why bother?
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http://github.com/robertwijas/UISS CocoaPods
inspired by @worrydream
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robertwijas