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
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
180
Choosing a back end for your mobile app:
funkyboy
0
640
Apps and Mental Models
funkyboy
0
210
Auto Layout? Oh boy!
funkyboy
0
140
Other Decks in Technology
See All in Technology
Android Studio の 新しいAI機能を試してみよう / Try out the new AI features in Android Studio
yanzm
0
130
JOAI発表資料 @ 関東kaggler会
joai_committee
1
130
人を動かすことについて考える
ichimichi
2
160
React Server ComponentsでAPI不要の開発体験
polidog
PRO
1
350
.NET開発者のためのAzureの概要
tomokusaba
0
130
夢の印税生活 / Life on Royalties
tmtms
0
170
MySQL HeatWave:サービス概要のご紹介
oracle4engineer
PRO
4
1.6k
不確実性に耐えて、どう進む?「あえて決めない」勇気と「楽しむ」戦略
mamedai55
1
100
AIに頼りすぎない新人育成術
cuebic9bic
3
340
Observability for LLM Application lifecycle
ivry_presentationmaterials
1
160
九州の人に知ってもらいたいGISスポット / gis spot in kyushu 2025
sakaik
0
210
Exadata Database Service on Dedicated Infrastructure セキュリティ、ネットワーク、および管理について
oracle4engineer
PRO
1
330
Featured
See All Featured
Designing Experiences People Love
moore
142
24k
The Language of Interfaces
destraynor
160
25k
Fight the Zombie Pattern Library - RWD Summit 2016
marcelosomers
234
17k
Faster Mobile Websites
deanohume
309
31k
Docker and Python
trallard
45
3.5k
YesSQL, Process and Tooling at Scale
rocio
173
14k
Designing for humans not robots
tammielis
253
25k
Fantastic passwords and where to find them - at NoRuKo
philnash
51
3.4k
How To Stay Up To Date on Web Technology
chriscoyier
790
250k
Why You Should Never Use an ORM
jnunemaker
PRO
58
9.5k
Designing for Performance
lara
610
69k
Testing 201, or: Great Expectations
jmmastey
45
7.6k
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