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
Objective-C Runtime Swizzle
Search
Wei Wang
November 20, 2014
Programming
0
200
Objective-C Runtime Swizzle
Wei Wang
November 20, 2014
Tweet
Share
More Decks by Wei Wang
See All by Wei Wang
網路之難,難於上青天 - iPlayground 2019
onevcat
11
5.1k
GMTC 2019 - 在分歧中发展,2019 我们能用 Swift 做什么
onevcat
0
1k
从 Swift 到机器学习
onevcat
2
1k
iOS Dev - The Dark Side
onevcat
0
140
面向协议编程与 Cocoa 的邂逅
onevcat
14
4.8k
Swift 3 - From Expert to Beginner
onevcat
2
220
如何打造一个让人愉快的框架
onevcat
4
22k
JSPatch Introduction
onevcat
0
200
Unity Memory
onevcat
0
150
Other Decks in Programming
See All in Programming
プロダクト志向ってなんなんだろうね
righttouch
PRO
0
190
iOS 26にアップデートすると実機でのHot Reloadができない?
umigishiaoi
0
130
Porting a visionOS App to Android XR
akkeylab
0
460
Is Xcode slowly dying out in 2025?
uetyo
1
270
Blazing Fast UI Development with Compose Hot Reload (droidcon New York 2025)
zsmb
1
290
Webの外へ飛び出せ NativePHPが切り拓くPHPの未来
takuyakatsusa
2
550
猫と暮らす Google Nest Cam生活🐈 / WebRTC with Google Nest Cam
yutailang0119
0
120
おやつのお供はお決まりですか?@WWDC25 Recap -Japan-\(region).swift
shingangan
0
140
「テストは愚直&&網羅的に書くほどよい」という誤解 / Test Smarter, Not Harder
munetoshi
0
170
Hypervel - A Coroutine Framework for Laravel Artisans
albertcht
1
130
ruby.wasmで多人数リアルタイム通信ゲームを作ろう
lnit
3
480
PHPでWebSocketサーバーを実装しよう2025
kubotak
0
290
Featured
See All Featured
Gamification - CAS2011
davidbonilla
81
5.4k
Making Projects Easy
brettharned
116
6.3k
A designer walks into a library…
pauljervisheath
207
24k
How to train your dragon (web standard)
notwaldorf
95
6.1k
Large-scale JavaScript Application Architecture
addyosmani
512
110k
The Art of Delivering Value - GDevCon NA Keynote
reverentgeek
15
1.5k
Agile that works and the tools we love
rasmusluckow
329
21k
Designing Experiences People Love
moore
142
24k
Why You Should Never Use an ORM
jnunemaker
PRO
58
9.4k
Easily Structure & Communicate Ideas using Wireframe
afnizarnur
194
16k
Responsive Adventures: Dirty Tricks From The Dark Corners of Front-End
smashingmag
251
21k
Dealing with People You Can't Stand - Big Design 2015
cassininazir
367
26k
Transcript
0CKFDUJWF$3VOUJNF 4XJ[[MF࣮ફ Ԧቨ
ࣗݾհ w ઌ݄ೖ͔ࣾΓɺલຊདྷͨ w J04։ൃ͙Β͍ɻલ৬6OJUZ% w ࠓ-JOF"ET4%,ͷࣄΛ୲͍ͯ͠Δ w ࠷ۙ"OESPJEษڧத w
IUUQHJUIVCDPNPOFWDBU
Ͳ͏ͯ͠0CKFDUJWF$͕ੜ͖Δ ͔Βɺࠓ·Ͱࡀա͗ɻݴޠʹͷ͓دΓ
None
4NBMM5BML ϝοηʔδૹ৴ 4XJ[[MJOH ϝλݴޠ $ͱ$ ޓ "3$ "TTPDJBUFE 0CKFDU --7.$MBOH
($% ັྗతͳ ॊೈੑ
4XJ[[MJOH
.FUIPE$BMMJOH ClassName *object = [[ClassName alloc] init]; [object doItWithA:a]; objc_msgSend(object,
@selector(doItWithA:), a); %JTQBUDI5BCMF .FUIPE *.1 @selector(doIt) doIt @selector(doItWithA:) doItWithA: - (void)doIt { //... } - (void)doItWithA:(id)a { //... }
.FUIPE4XJ[[MJOH %JTQBUDI5BCMF .FUIPE *.1 @selector(doIt) doIt @selector(doItWithA:) doItWithA: @selector(alt_doItWithA:) alt_doItWithA:
- (void)doIt { //... } - (void)doItWithA:(id)a { //... } - (void)alt_doItWithA:(id)a { //... } EP*U8JUI"ͱBMU@EP*U8JUI"Λ4XJ[[MF͠·͢
.FUIPE4XJ[[MJOH %JTQBUDI5BCMF .FUIPE *.1 @selector(doIt) doIt @selector(doItWithA:) doItWithA: @selector(alt_doItWithA:) alt_doItWithA:
- (void)doIt { //... } - (void)doItWithA:(id)a { //... } - (void)alt_doItWithA:(id)a { //... } EP*U8JUI"ͱBMU@EP*U8JUI"Λ4XJ[[MF͠·͢
.FUIPE4XJ[[MJOH %JTQBUDI5BCMF .FUIPE *.1 @selector(doIt) doIt @selector(doItWithA:) doItWithA: @selector(alt_doItWithA:) alt_doItWithA:
- (void)doIt { //... } - (void)doItWithA:(id)a { //... } - (void)alt_doItWithA:(id)a { //... } *.1Λަ͠·͢
%FNP -JOF"ET4%,ΦϦΤϯςʔγϣϯ
αϚϦʔ w ΫϥεͷϝιουςʔϒϧΛॻ͖͑Δ w ڧྗͰ͋ΔͨΊཚ༻Λආ͚Δ͖ w ඞͣަલͷϝιʔυΛݺͼ·͢ w ΫϥεͷΧςΰϦʔͱ MPBE࿈ܞ͕Φεεϝ
'"2 NBJMXFJXBOH!MJOFDPSQDPN )JQ$IBUPOFWDBU %FNPDPEFIUUQTHJUIVCDPNPOFWDBU-BOETDBQF7JFX$POUSPMMFS%FNP