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
230
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
120
What the heck is JavaScriptCore?
funkyboy
0
140
The new WebKit is awesome
funkyboy
1
360
The new WebKit is AWESOME
funkyboy
0
500
Designing with Cognitive Science in Mind
funkyboy
0
150
The new WebKit is AWESOME
funkyboy
0
170
Choosing a back end for your mobile app:
funkyboy
0
640
Apps and Mental Models
funkyboy
0
210
Auto Layout? Oh boy!
funkyboy
0
130
Other Decks in Technology
See All in Technology
20250625 Snowflake Summit 2025活用事例 レポート / Nowcast Snowflake Summit 2025 Case Study Report
kkuv
1
250
MySQL5.6から8.4へ 戦いの記録
kyoshidaxx
1
110
Create a Rails8 responsive app with Gemini and RubyLLM
palladius
0
140
本当に使える?AutoUpgrade の新機能を実践検証してみた
oracle4engineer
PRO
1
130
Amazon Bedrockで実現する 新たな学習体験
kzkmaeda
1
410
Agentic DevOps時代の生存戦略
kkamegawa
1
1.1k
Definition of Done
kawaguti
PRO
6
470
Абьюзим random_bytes(). Фёдор Кулаков, разработчик Lamoda Tech
lamodatech
0
300
IIWレポートからみるID業界で話題のMCP
fujie
0
740
低レイヤを知りたいPHPerのためのCコンパイラ作成入門 完全版 / Building a C Compiler for PHPers Who Want to Dive into Low-Level Programming - Expanded
tomzoh
4
2.3k
Snowflake Summit 2025全体振り返り / Snowflake Summit 2025 Overall Review
mtpooh
2
350
Oracle Audit Vault and Database Firewall 20 概要
oracle4engineer
PRO
3
1.7k
Featured
See All Featured
Fantastic passwords and where to find them - at NoRuKo
philnash
51
3.3k
The Art of Programming - Codeland 2020
erikaheidi
54
13k
Rebuilding a faster, lazier Slack
samanthasiow
81
9k
Optimising Largest Contentful Paint
csswizardry
37
3.3k
Thoughts on Productivity
jonyablonski
69
4.7k
[Rails World 2023 - Day 1 Closing Keynote] - The Magic of Rails
eileencodes
35
2.3k
Design and Strategy: How to Deal with People Who Don’t "Get" Design
morganepeng
130
19k
Gamification - CAS2011
davidbonilla
81
5.3k
Music & Morning Musume
bryan
46
6.6k
Designing Dashboards & Data Visualisations in Web Apps
destraynor
231
53k
Why You Should Never Use an ORM
jnunemaker
PRO
56
9.4k
The Cost Of JavaScript in 2023
addyosmani
51
8.4k
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