Valhalla Wing Index du Forum
Valhalla Wing Index du ForumFAQRechercherS’enregistrerConnexion

Cocoa Design Pattern@05-20-2016

 
Poster un nouveau sujet   Répondre au sujet    Valhalla Wing Index du Forum -> Ouvert à Tous -> Recrutement
Sujet précédent :: Sujet suivant  
Auteur Message
kangijymme


Hors ligne

Inscrit le: 08 Mai 2016
Messages: 97
Localisation: Paris

MessagePosté le: Ven 20 Mai - 14:59 (2016)    Sujet du message: Cocoa Design Pattern@05-20-2016 Répondre en citant




Cocoa Design Pattern > urlin.us/2bj7u





The....new....methods....are....added....at....compile....time....and....can....be....executed....like....normal....methods....of....the....extended....classNote:....If....a....protocol....becomes....too....big....and....is....packed....with....a....lot....of....methods,....you....should....consider....breaking....it....into....several....smaller....protocolsIf....the....image....hasnt....already....been....downloaded,....then....retrieve....it....using....HTTPClientThis....code....is....pretty....straightforwardBeing...a...beginner...of...swift...language...concepts,...I...wonder...how...the...object...creation...worksSwift...automatically...translates...Objective-C...methods...that...produce...errors...into...methods...that...throw...an...error...according...to...Swifts...native...error...handling...functionalityThis..creates..a..toolbar..which..will..display..the..buttons..for..the..new..actions,..as..well..as..an..array..to..act..as..the..command..queueThe....arrays....mutable....so....that....you....can....easily....add....and....delete....albumsinterface..LibraryAPI..()..{..PersistencyManager..*persistencyManager;..HTTPClient..*httpClient;..BOOL..isOnline;..}....endWhen...you...create...a...new...album,...youll...pass...in...the...album...name,...the...artist,...the...album...cover...URL,...and...the...yearThis....method....loads....album....data....via....LibraryAPI....and....then....sets....the....currently....displayed....view....based....on....the....current....value....of....the....current....view....indexSince...the...main...application...accesses...all...services...via...LibraryAPI,...this...is...how...the...application...will...let...PersitencyManager...know...that...it...needs...to...save...album...dataNote:...This...is...an...important...patternHow..to..Use..the..Command..PatternYoull....create....a....category....that....is....an....extension....of....Album;....it....will....define....a....new....method....that....returns....a....data....structure....which....can....be....used....easily....with....UITableViewsCreate....a....new....class....with....the....iOSCocoa....TouchObjective-C....class....template....inside....the....API....groupBuild..and..run..your..appYou..can..check..the..simulator..Documents..folder..for..your..app..in..Finder..to..see..that..the..album..data..file..is..created..but..in..order..to..see..any..other..changes..youd..have..to..add..in..the..ability..to..change..album..dataCategories..help..keep..the..methods..organized..and..separated..into..sectionsThe..notification..info..contains..the..UIImageView..to..populate..and..the..URL..of..the..cover..image..to..be..downloadedStop..your..app..and..run..it..againcoordinates...=...CLLocationCoordinate2D...(...latitude...:...latitude...,...longitude...:...longitude...)...self...Add....the....following....code....to....LibraryAPI.m:The...last...album...you...viewed...wont...be...the...default...album...when...the...app...launchesdataUsingEncoding..(..NSUTF8StringEncoding..)!..let..attributes..=..try..!..NSJSONSerialization..arguments....{....print....(....argument....)....}....//....prints...."/path/to/app"....//....prints...."--argumentName"....//....prints...."value"....Note....The....first....element....in....Process.arguments....is....always....a....path....to....the....executableView:..The..objects..that..are..in..charge..of..the..visual..representation..of..the..Model..and..the..controls..the..user..can..interact..with;..basically,..all..the..UIViews..and..their..subclassesThis....logic....promises....that....only....one....instance....exists....at....all....timesNow,....add....the....following....code:Missing....(....let....field....)....{....print....(...."Missing....Field:....(....field....)...."....)....}....//....Prints...."Missing....Field:....name"....Or,....if....the....provided....JSON....specified....all....of....the....required....fields....but....had....a....value....for....the...."category"....key....that....didnt....correspond....with....the....rawValue....of....any....of....the....defined....Category....cases,....the....initializer....would....throw....the....enumeration....value....ValidationError.Invalid....with....an....associated....value....corresponding....to....the...."category"....field:....{...."name":...."Moscone....West",...."coordinates":....{...."lat":....37.7842,...."lng":....-122.4016....},...."category":...."Convention....Center"....}....let....JSON....=...."{"name":...."Moscone....West",...."coordinates":....{"lat":....37.7842,...."lng":....-122.4016},...."category":...."Convention....Center"}"....let....data....=....JSON....Next,..youll..need..to..refer..to..your..new..delegate..from..within..the..HorizontalScroller..class..definitionif....let....button....=....object....as....?....UIButton....{....//....object....is....successfully....cast....to....type....UIButton....and....bound....to....button....}....else....{....//....object....could....not....be....cast....to....type....UIButton....}....For....more....information,....see....Type....Casting....in....The....Swift....Programming....Language....(Swift....2.2)Youll...implement...this...pattern...by...creating...a...singleton...class...to...manage...all...the...album...dataNow,..add..the..following..method..to..ViewController.m:ios..web-services..authentication..mobile-application..cocoa-design-patterns..asked..May..9..at..9:53..saw..161..1..vote..1answer..45..views..Where..should..custom,..reusable..animation..code..go?..Overview:..I..currently..have..a..custom..UIView..subclass..that..implements..custom..animation..logic,..and..I'm..not..sure..that..the..view..class..is..the..best..place..to..put..that..codeRequired....methods....must....be....implemented....by....the....delegate....and....usually....contain....some....data....that....is....absolutely....required....by....the....classOpen..LibraryAPI.h..and..replace..its..contents..with..the..following: f5880b0734



Revenir en haut
Publicité






MessagePosté le: Ven 20 Mai - 14:59 (2016)    Sujet du message: Publicité

PublicitéSupprimer les publicités ?
Revenir en haut
Montrer les messages depuis:   
Poster un nouveau sujet   Répondre au sujet    Valhalla Wing Index du Forum -> Ouvert à Tous -> Recrutement Toutes les heures sont au format GMT + 2 Heures
Page 1 sur 1

 
Sauter vers:  

Index | Panneau d’administration | forum gratuit | Forum gratuit d’entraide | Annuaire des forums gratuits | Signaler une violation | Conditions générales d'utilisation
darkages Template © larme d'ange
Powered by phpBB © 2001, 2005 phpBB Group
Traduction par : phpBB-fr.com