Upgrade to Pro
— share decks privately, control downloads, hide ads and more …
Speaker Deck
Features
Speaker Deck
PRO
Sign in
Sign up for free
Search
Search
Auto Layout? Oh boy!
Search
Cesare Rocchi
May 02, 2013
Technology
1
240
Auto Layout? Oh boy!
Slides of my presentation "Auto Layout? Oh boy!" at UIKonf
Cesare Rocchi
May 02, 2013
Tweet
Share
More Decks by Cesare Rocchi
See All by Cesare Rocchi
In the customer's shoes
funkyboy
0
130
What the heck is JavaScriptCore?
funkyboy
0
140
The new WebKit is awesome
funkyboy
1
370
The new WebKit is AWESOME
funkyboy
0
500
Designing with Cognitive Science in Mind
funkyboy
0
150
The new WebKit is AWESOME
funkyboy
0
180
Choosing a back end for your mobile app:
funkyboy
0
640
Apps and Mental Models
funkyboy
0
220
Auto Layout? Oh boy!
funkyboy
0
140
Other Decks in Technology
See All in Technology
kaigi_on_rails_2025_設計.pdf
nay3
8
4.2k
非エンジニアのあなたもできる&もうやってる!コンテキストエンジニアリング
findy_eventslides
3
850
Sidekiq その前に:Webアプリケーションにおける非同期ジョブ設計原則
morihirok
17
6.4k
PyCon JP 2025 DAY1 「Hello, satellite data! ~Pythonではじめる衛星データ解析~」
ra0kley
0
830
KMP の Swift export
kokihirokawa
0
190
From Prompt to Product @ How to Web 2025, Bucharest, Romania
janwerner
0
110
「Verify with Wallet API」を アプリに導入するために
hinakko
1
110
GA technologiesでのAI-Readyの取り組み@DataOps Night
yuto16
0
240
"複雑なデータ処理 × 静的サイト" を両立させる、楽をするRails運用 / A low-effort Rails workflow that combines “Complex Data Processing × Static Sites”
hogelog
3
1.4k
PythonとLLMで挑む、 4コマ漫画の構造化データ化
esuji5
0
120
[2025-09-30] Databricks Genie を利用した分析基盤とデータモデリングの IVRy の現在地
wxyzzz
0
410
SoccerNet GSRの紹介と技術応用:選手視点映像を提供するサッカー作戦盤ツール
mixi_engineers
PRO
1
130
Featured
See All Featured
Performance Is Good for Brains [We Love Speed 2024]
tammyeverts
12
1.1k
Art, The Web, and Tiny UX
lynnandtonic
303
21k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Typedesign – Prime Four
hannesfritz
42
2.8k
Templates, Plugins, & Blocks: Oh My! Creating the theme that thinks of everything
marktimemedia
31
2.5k
Exploring the Power of Turbo Streams & Action Cable | RailsConf2023
kevinliebholz
34
6.1k
For a Future-Friendly Web
brad_frost
180
9.9k
[RailsConf 2023 Opening Keynote] The Magic of Rails
eileencodes
30
9.7k
Why Our Code Smells
bkeepers
PRO
339
57k
Designing for humans not robots
tammielis
254
25k
RailsConf 2023
tenderlove
30
1.2k
Building a Modern Day E-commerce SEO Strategy
aleyda
43
7.7k
Transcript
Auto Layout? Oh boy! Rocchi Cesare _funkyboy funkyboy
Outline History Frames Spring&Struts Auto layout
Who am I?
UX designer and developer
Who are you?
Giveaway
None
Lyrics
“Ring! Ring! It's 7:00 A.M.! Move y'self to go again”
“Ring! Ring! It's 7:00 A.M.! Move y'self to go again”
The Magnificent Seven - The Clash
A bit of history
A bit of history
A bit of history
A bit of history
A bit of history
None
None
What is layout?
What is layout? Position Size
Web people have CSS
http://mediaqueri.es
http://joshemerson.co.uk/rsd/
In the beginning ...
Frames UIView *newView = [[UIView alloc] initWithFrame: CGRectMake(10, 10, 100,
100)]; [self.view addSubview:newView];
Frames UIView *newView = [[UIView alloc] initWithFrame: CGRectMake(10, 10, 100,
100)]; [self.view addSubview:newView]; CGRect frame = newView.frame; frame.size.height = 200; frame.size.width = 200; frame.origin.x = 20; frame.origin.y = 20; newView.frame = frame;
Frames UIView *newView = [[UIView alloc] initWithFrame: CGRectMake(10, 10, 100,
100)]; [self.view addSubview:newView]; CGRect frame = newView.frame; frame.size.height = 200; frame.size.width = 200; frame.origin.x = 20; frame.origin.y = 20; newView.frame = frame; newView.center = newView.superview.center;
Spring & Struts
Spring & Struts Autosizing mask
Spring & Struts Autosizing mask How do I change when
superview changes?
Spring & Struts
Spring & Struts
Spring & Struts self.view.autoresizingMask =
Spring & Struts UIViewAutoresizingFlexibleWidth UIViewAutoresizingFlexibleHeight UIViewAutoresizingFlexibleLeftMargin UIViewAutoresizingFlexibleRightMargin UIViewAutoresizingFlexibleTopMargin UIViewAutoresizingFlexibleBottomMargin self.view.autoresizingMask
=
Auto Layout
Mental shift
Impacts your life
Wife: “Honey are you still working with that auto layout
thing?”
Wife: “Honey are you still working with that auto layout
thing?” Me: “Yeah, how do you know?”
Wife: “Honey are you still working with that auto layout
thing?” Me: “Yeah, how do you know?” Wife: “Because I am hearing more ‘f*ck’ and ‘sh!t’ than usual”.
You DON’T setFrame: anymore
You DON’T setFrame: anymore You DECLARE a layout
You express relations between elements
constraint3 constraint4 constraint1 constraint2
constraint3 constraint4 constraint1 constraint2
constraint3 constraint4 constraint1 constraint2
?
Linear equations
ax + by = c Linear equations
ax + by = c Linear equations
ax + by = c 2x + 2y = 4
Linear equations
ax + by = c 2x + 2y = 4
=> [x = 1, y = 1] Linear equations
ax + by = c 2x + 2y = 4
=> [x = 1, y = 1] 2(x+5)-7 = 3(x-2) Linear equations
ax + by = c 2x + 2y = 4
=> [x = 1, y = 1] 2(x+5)-7 = 3(x-2) => [x = 9] Linear equations
0x + 1 = 2
Linear equations One solution No solution Infinite solutions
One solution
One solution “Hey lady, you got the love I need
...”
One solution “Hey lady, you got the love I need
...” Over the Hills and Far Away - Led Zeppelin
No solution
“Pleased to meet you hope you guess my name ...”
No solution
“Pleased to meet you hope you guess my name ...”
No solution Sympathy For The Devil - The Rolling Stones
Infinite solutions
“It's gettin' dark, too dark to see ...” Infinite solutions
“It's gettin' dark, too dark to see ...” Infinite solutions
Knockin' on Heaven's Door - Bob Dylan
Geometry helps
Geometry helps One solution x -2y = -1 4x +
3y = 7
Geometry helps No solution 3x + 2y = 12 3x
+ 2y = 6
Geometry helps Infinite solutions y = 10x + 4 -30x
- 12 = -3y
Likes one solution scenarios Multiple solutions => ambiguous layout No
solution => conflicting constraints
No order in grinding ...
No order in grinding ... Priorities
“Left margin is always 20” “Top margin is always 20”
Let’s see
“Left edge is 20” “Top edge is 20” “Width is
100” “Height is 100”
Enough IB
NSLayoutConstraint
[NSLayoutConstraint constraintWithItem:newElement
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:[newElement superview]
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:[newElement superview] attribute:NSLayoutAttributeLeft
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:[newElement superview] attribute:NSLayoutAttributeLeft multiplier:1.0
[NSLayoutConstraint constraintWithItem:newElement attribute:NSLayoutAttributeLeft relatedBy:NSLayoutRelationEqual toItem:[newElement superview] attribute:NSLayoutAttributeLeft multiplier:1.0 constant:0.0];
More complex example
Zen
Zen NSArray *constraints = [NSLayoutConstraint constraintsWithVisualFormat:@"H:|[newEl]|" options:0 metrics:nil views:NSDictionaryOfVariableBindings(newEl)];
Zen @"V:|[newElement]-100-|"
Zen @"V:[btn1]-[btn2]"
Zen @"V:[btn1]-100-[btn2]"
Zen @"[btn(>=100)]"
Zen @"[btn(>=100@500)]"
Zen @"[btn1(>=80, <=120)]"
Animation
Alternative
Alternative https://github.com/RolandasRazma/RRAutoLayout if(!NSClassFromString(@"NSLayoutConstraint")) { objc_registerClassPair( objc_allocateClassPair( [RRLayoutConstraint class], "NSLayoutConstraint", 0));
}
DON’T think in terms of frames
Should I use Auto Layout?
“The answer my friend is ...”
“The answer my friend is ...” Blowin' In The Wind
- Bob Dylan
Summing up Did blocks substitute delegates?
Thank you!
Coordinates twitter.com/_funkyboy app.net/funkyboy
[email protected]
http://studiomagnolia.com