王轲－唱吧iOS客户端的架构演进

《王轲－唱吧iOS客户端的架构演进》由会员上传分享，免费在线阅读，更多相关内容在行业资料-天天文库。

1、唱吧iOS客户端的架构演进王轲唱吧iOS架构师Aboutme•王轲，唱吧iOS架构师•之前是iOS独立开发者，个人应用在全球拥有2000w+次下载•6年iOS开发经验Aboutktv.app•Feed流•榜单•点歌台•音视频录制•语音包房•群组•聊天Mistakesinktv.app•View•ViewController•Model•HTTPNetworking•Graphics•AudioView-WaterfallView-WaterfallCTOiOSEngineerView-Waterfall•Choosetherighttechnique•UIC

2、ollectionViewBasedwaterfallview•Pinshapelayout•ReusecelltogethigherFPSView-MassiveCell•Text/Image/Voice/GIF…14types•Massivechatcell•Single/groupchat•Incoming/Outgoingmessage•If/elsepyramid•2000+LoCView-MassiveCellView-MassiveCell•Samebasecell•Incoming/Outgoing•Innerview•14innerview

3、subclasses•200LoConaverageView-MassiveCellVC-PreKTV6.0•Hamburger(Drawer)•Viewbasedhierarchy•Highmemoryusage•LowFPS•Buggy•Re-inventwheelsVC-PreKTV6.0•Hamburger(Drawer)•Viewbasedhierarchy•Highmemoryusage•LowFPS•Buggy•Re-inventwheelsVC-KTV6.0+•VCbasedhierarchy•UITabBarController+UINav

4、igationControllerVC-MVC==MassiveViewController•MassiveLoC•Mixedresponsibility•Hardtomaintain•Poorreadability•Buggy•20+VCwith3000+LoCVC-ChildViewController•ReusableVC•Lesscode,lessbug•LoC<2000,700LoConaverage•Eg.KTVKeyboardViewControllerModel-PreKTV6.0•Uselessdumbmodel•NSDictionaryd

5、rivendataflowwithweaktype•Inconsistentdatatypeusage•Model<=>JSON•Buggy•Eg1,if([param[@“songid”]integerValue]==-1){/**blah*/}•Eg2,if(param[@“songid”]isEqualToString:@“1134”]{/**blah*/}Model-Mantle(KTV6.0+)•OpensourcebyGithub,appliedinGithubforMac•Runtime/KVCbasedModel/JSONconversion

6、•Keypathmapping•NSValueTransformer•StrongtypewithcompilercheckingHTTPNetworking•Nocachecontrol•NoHTTPSsupport,insecureforcriticalAPI•Poordefaulterrorhandling•LowuploadingsuccessrateHTTPNetworking•NSURLCachebasedcachecontrol•ValidationModel(ETag)+ExpireModel(max-age)•Doublerequestif

7、needed•Defaulterrorhandling•SSLPinning•DifferentCDNforvariousuploadingstrategyHTTPNetworking-Uploading•SingleCDN=>MultipleCDN•AntiCDNhijacking•Auto-switchinguploadtarget•Pingtest•Serverpreferredtarget•Uploadinghistory•Autoretrysupport•Successrate:83%=>98%Graphic-LyricView•CoreGraph

8、ics=>CoreAnimation•CPUboun