CircleBack and WWDC 2015

Transcript

1. WWDC$2015
2. Major&Themes • Swi%&grows&up • Dev&tools&get&a&revamp • watchOS
3. Minor&Items • Contacts)framework • Privacy)changes • Search)Indexing • Improvements)to)iTunesConnect
4. Dev$Tools
5. Xcode&Server • Server&is&an&applica.on • Users&create&‘bots’ • Bots&run&the&scheme&provided&by&the&project&file&and&report&back • Build&errors • Warnings • Sta.c&analysis&results • Test&pass&/&fail
6. Xcode&Server • Server&can&report&code&coverage& • Scriptable • REST&API • Build&scripts&have&access&to&build&results,&products,&etc • Devices&may&be&a@ached&and&used&for&tesBng.
7. What%can%we%do%with%Xcode%Server • Could"be"our"only"CI"resource • Jenkins"(via"rest"API) • Provide"coverage"results"for"Fabrice • Tes>ng"and"regression"results"for"Andy • Automa>cally"trigger"new">ckets"for"problems? • Automa>cally"trigger"builds"on"newly"merged"features
8. Server
9. Bot$Summary
10. Bot$Tests
11. Bot$Coverage
12. Bot$Commits
13. UI#Tes'ng
14. UI#Tes'ng • Tests&are&wri+en&in&na-ve&code&(swi3,&objec-ve7c) • Run&in&the&same&test&framework&as&Unit&tests&(XCTest) • Captures&screenshots&at&every&step
15. Recordable*Tests
16. UI#Tes'ng • Recorded(in(Xcode • Implicit(asser3ons((does(this(bu8on(I(want(to(tap(exist?) • Addi3onal(asser3ons(can(be(added (These&are&not&available&in&the&BDD&style&we&have&been&using,&at&least&I& assume&they’re&not.&Recording&definitely&won’t&work&that&way.)
17. Other&dev&tools
18. Address&Sani+zer • Memory(guarding • Like(mallocGuard(or(Valgrind • Can(gather(memory(corrup9on(informa9on • Comes(with(performance(penalty.(
19. LLVM$Changes$(Objec1ve3C) • C#free#func*ons#without#prototype#is#an#error • Warnings#about#int#(32#bits)#vs#pointer#size#(64#bits) • There#are#c@language#typedefs#(apart#from#NSInteger) • needed#to#fix#the#scan#codebase#that’s#shared#between#iOS/ Android • Points#towards#moderniza*on#tool#for#Objec*ve@C • Added#features:#instancetype,#property#declara*ons,#NS_ENUM
21. LLVM$Modules • Replacement+for+precompiled+header. • Replaces+text+replacement+with+a+seman6c+construct • Can+now+create+user+modules • Good+for+our+dependencies/pods • Removes+the+need+to+explicitly+#import+everywhere • @import MyFramework • Lots+of+caveats+here+to+explore
22. Profile'Guided'Op.miza.on • Compiler*can*use*a*informa1on*from*a*run*of*the*app*to*op1mize* code*internals • LLVM*9>*instrumented*app*9>*profile*9>*PGO • Advantages*in*inlining,*code*layout,*register*alloca1on*and* cacheing. • Performance*Tests*can*be*used*as*profiles
24. LLDB$Improvements Incremental*improvements*that*will*speed*up*debugging 6*LLDB*has*visibility*about*C*return*types 6*Can*see*inline*methods 6*Can*view*proper<es*on*id*type 6*Can*other*SDK*types,*macros,*constants*by*impor<ng*frameworks* into*LLDB 6*Large*scale*improvements*for*SwiB
25. App#Thinning Shrinks(the(size(of(the(app(download.( • Uses%informa-on%in%the%asset%catalog • Sends%code%and%resources%appropriate%by%device% • Asset%catalogs%can%contain%arbitrary%binary%resources.%
26. Swi$%2.0 (and%objec+ve-c)
27. Swi$%2.0 • Under'the'hood'improvements • New'language'features • Error'handling'(do'...'try) • Guard'keyword • Improvements'to'protocols'allow'different'programming' paradigms • Error'handling'is'arguably'first'class
28. Objec&ve(C*addi&ons Three%frontend%language%addi0ons • nullability • generics • __kindOf
29. Objec&ve(C • Nullability*informs*Swi3*about*whether*an*objc*api*can*return*an* op9onal.* • Generics*inform*about*type*informa9on • __kindOf*allows*polymorphic*handling*of*return*types • LLVM*frontend*improvements • Not*run9me*enforceable
30. Wut -(NSArray *)gimmeItems func gimmeItems() -> [AnyObject]? -(NSArray<UIView *>*)gimmeItems func gimmeItems() -> [UIView]? -(__nonnull NSArray<UIView *>*)gimmeItems func gimmeItems() -> [UIView] -(__nonnull NSArray<__kindOf UIView *>*)gimmeItems func gimmeItems() -> [UIView]
31. Other&Swi*&improvements • Errors&are&first&class&ci.zens.& • Not&excep.ons,&but&a&func.on&can&throw&an&error.& • Errors&are&enum&types • Which&are&mapped&to&NSError • Protocol&imporovements • Which&I&don’t&fully&understand • Allows&for&different&seman.cs&on&collec.on&func.ons
32. *>* • Objec've)c*is*uglier • Swi3*is*cleaner • Interop*is*be:er • We*should*start*adop'ng*Swi3.* • Improvements*work*on*iOS*7+
33. watchOS(2.0
34. watchOS(2.0 • Apps%run%na*ve%on%hardware • WatchKit%apis%are%similar • Enhancements%to%allow%custom%anima*ons%and%such • WatchCommunica*on%framework%in%place%for%interapp% communica*on • Shared%watch%keychains
35. We#should#revise#the#watch#app “Users&are&probably&going&to&expect&a&responsive&watch&app” —"A"watch"engineer"I"met"at"lunch
36. Contacts(Framework
37. Contacts(Framework • Objec've)C+/+Swi0+framework • Contact+records+and+the+like+are+thread+safe • Queries+return+value+objects+that+are+no+longer+'ed+to+the+ addressbook+source.+ • Mutable+variants+exist+for+altering+address+book+data • Contacts(provides(a(safe(consistent(id(value
38. Unified'vs'containered'contacts New$terminology: • Unified'contact"#"a"contact"that’s"been"autolinked"by" addressbook • Container"#"a"source"in"our"parlance:"iCloud,"exchange,"gmail," etc. • Par/al'Contact"#"contacts"are"fetched"without"all"its"proper?es • Group"#"a"subset"of"contacts"in"a"container
39. Unified'Contacts
40. Contact'Groups
41. Contact'Framework'Implica2ons • Architecture*adheres*closely*to*proposals*for*NAB*2.0 • More*robust*Sync,*Nab*upload • Sync*can*possibly*run*without*cardDav*by*wri@ng*to*the*default* source*and*working*with*the*same*methods*used*by*addressbook* itself. • Swaths*of*iOS*code*are*rendered*irrelevant*on*iOS9+
42. AddressBook)Framework)is)deprecated in#iOS9
43. Spotlight
44. Spotlight • Searchable*app*content • Also*visible*in*safari*search • Public*data*accessible*even*for*users*who*do*not*have*the*app... • Jump*right*into*app
45. AirBnb'example
46. Other&Examples • LinkedIn)adds)contacts)and)communica1ons • Spotlight)can)open)apps)directly)to)other)points)(deep)links)
47. Cloud&Index • Can%tag%public%items • Public%items%with%enough%interac6on%get%promoted%into%the% cloud • Can%connect%web%content%(along%with%an%app%prompt)
48. • NSUserAc)vity"(aka"handoff) • Like"a"browser"history • Index"things"the"user"has"done • CoreSpotlight • Index"of"user"content • Database<like • Web6Markup • Used"if"content"is"mirrored"on"the"web. CoreSpotlight!is!clearly!the!right!API!for!us!to!use.
49. Leveraging)NSUserAc0vity • Siri%/%Sugges+ons%(apple,%not%ours)%can%act%on%NSUserAc+vity • “Remind%me%about%this”%<C%embeds%the%ac+vity%into%the%reminder
50. How$should$we$use$search$apis? • Contacts)can)be)indexed)in)CoreSpotlight • Updates)could)be)NSUserAc9vi9es • Watch)handoff) • Siri)/)reminders) • There)are)foreground)and)background)modes)we)should)explore • We)will)need)to)support)deep)linking)in)new)ways • We)should)be)sure)to)make)our)search)results)as)engaging)as)possible.)Ranking'is')ed' to'engagement • Designers)should)watch)end)of)video
51. Privacy(&(Security
52. Privacy • When&asking&the&user&for&contacts&access&we&can&specify&a&‘purpose&string’&to& tell&the&user&why&(iOS&8) • All&APIs&will&have&to&support&hAps • canOpenURL&requires&the&protocol&to&be&registered&at&compile&Ime&in&the&plist. • limited&to&50 • looks&like&universal&links&are&the&answer&(uses&web&urls) • requires&web&work&(video&509) • We&should&embrace&on&disk&file&protecIon.
53. Security • App$Transport$Security$2$TLS$1.2$w/forward$secrecy$(see$slide). • Excep@ons$must$be$made$at$compile$@me$in$plist • “Always$accessible”$keychain$seGng$disabled$in$iOS$9
54. Security)IRT)WatchKit • Creden'al*unlocking*with*WK*might*be*cumbersome • Recommends*separate*creden'aling*(from*the*server)*for*WK* opera'ons. • This*might*require*reworking*our*security*model*somewhat*to* allow*for*refresh*tokens*or*a*token*to*get*another*token.
55. Shared'Web'Creden,als • Sharing)auto)fill)passwords)between)safari)&)iOS. • Keychain)underlies)this. • Requires)an)added)en>tlement)on)the)app • Relates)to)handoff,)app)links • Might)also)consider)iCloud)stored)creden>al
56. iTunesConnect+&+ Tes-light
57. iTunesConnect • Mac%and%iOS%are%not%longer%separate • Various%other%UX/site%org%changes • “Scheduled%Release”%<%set%date%and%=me%of%release. • Can%schedule%promo=onal%pricing • Certain%opera=ons%can%be%done%via%XML... • Many%updates%on%the%resources%page
58. Tes$light • Clearer'breakout'of'internal'and'external'testers • Can'specify'different'version'for'internal/external • Tes:light'app • Users'can'see'which'apps'aren’t'compaAble'with'their'device' • Tes:light'has'metrics'(sessions'and'crashes) • Data'available'by'tester. • App'bundle'can'specify'encrypAon'seGng
59. Limit%changes • 6#external#builds#a#day# • 100#ac4ve#apps • expira4on#to#60#days • 25#internal#testers/app • 2000#external#testers/app
60. User%Management • User&segmenta,on&for&users&iTunesConnect • New&Roles& • app&manager • Developer • Marke,ng
61. Transporter Command'line'tool • App$meta$data$in$an$xml$feed$(not$new) • XML$6>$transporter$6>$catch$return • Binary$s?ll$uses$the$uploader$(or$xcode)
62. Other • Common&app&rejec-on&page • App&store&product&page&guide • App&preview&guide
63. Wrap%up
64. Miscellaneous • XCode'support'crash'repor0ng. • Storyboards'have'been'improved'with'support'for'mul0ple'files' without'hackey'custom'transi0ons • CoreData'has'be@er'support'for'async'behavior' (NSAsynchronousFetchRequest) • CoreData'will'allow'a'uniqueness'constraint'across'a'set'of'columns • Session'226'on'opera0ons'explains'what'I’ve'been'advoca0ng'for'in' terms'of'refactoring'our'network'stack.'
65. Final&recommenda-ons • Adopt'Xcode'server'for'CI.'Even'run'on'the'beta'and'file'radars • Begin'to'adopt'swi>'for'some'new'code. • Adopt'nullability'now'in'new'code,'and'where'touching'old'code • Adopt'generics'when'available'in'new'code'and'when'touching'old'code. • Migrate'exisDng'watch'app'to'2.0,'but'maintain'funcDonality • Prepare'for'iOS'9'by'using'Contacts'framework'where'it’s'available • Need'to'use'a'clean'runDme'check. • ConDnue'discussion'about'how'we'should'use'TesOlight
66. Zanier'ideas • Explore)doing)a)complica1on • See)what)we)can)do)to)revive)the)original)watchkit)app)idea.) (Passbook?) • Use)playground)improvements)for)an)API)doc)in)swiE