swiftui和uikit，uikit tools 是什么

2023-12-28 14:57 经验分享睿知

1，uikit tools 是什么系统应用工具【swiftui和uikit，uikit tools 是什么】
2 ，在SwiftUI项目中使用UIKitSwiftUI和UIKit混合开发在SwiftUI中使用UIKit控件，需要对UIKit的控件进行包装。UIView使用UIViewRepresentable进行包装。UIViewController使用UIViewControllerRepresentable进行包装1、使用UIViewRepresentable转化UIView运行结果如下图2、使用UIViewControllerRepresentable初始化UIViewController运行结果如下
3，uikit框架 datauk怎么用data-uk-*，不需要用，任何data-uk-开头的样式，都会应用data-uk-*的样式我会继续学习，争取下次回答你
4，CombineSwiftUI VS RxSwiftUIKit截止到2022年5月21日，Apple近4年活跃的iPhone设备中系统版本 >= iOS14 的数量已经占到了98%，所有iPhone设备中系统版本 >= iOS14的数量已经占到了7% 。数据已经摆在这了，那么现在我们是否还有必要支持iOS12呢？经过我的实战经验，如果不支持iOS12，可以直接从SwiftUI+Combine入手开始写，遇到复杂的页面布局、交互、动画，再用RxSwift+UIKit，SwiftUI和UIKit可以很方便的桥接。2021年12月底的数据显示，已经有85%的iOS设备升级到了iOS14，8%的设备停留在iOS13 。从Appleapp-store网站可以看出来本文会持续收集参考资料，对比RxSwift和Combine 。RxSwift to Apples Combine “Cheat Sheet”https://medium.com/gett-engineering/rxswift-to-apples-combine-cheat-sheet-e9ce32b14c5bCombine vs RxSwift: Introduction to Combine and Differenceshttps://dzone.com/articles/combine-vs-rxswift-introduction-to-combine-amp-dif#:~:text=In%20Combine,%20every%20Publisher%20needs,errors%20that%20should%20be%20launched.Will Combine kill RxSwift?https://medium.com/flawless-app-stories/will-combine-kill-rxswift-64780a150d89这里直接放地址链接，因为有时候不跳转。5，ios ui kit 什么意思UIkit 是 YOOtheme 团队开发的一款轻量级、模块化的前端框架，可快速构建强大的web前端界面。UIKit提供了全面的HTML、CSS及JS组件，它们使用简单，容易定制和扩展。它基于LESS开发，代码结构清晰简单，易于扩展和维护，并且具有体积小、反应灵敏的响应式组件，你可以根据 UIKit 基本的风格样式，轻松地自定义创建出自己喜欢的主题样式。明怎么处理6，swift nsdata和data的区别var string = NSString.init(data:yourData，encoding:NSUTF8StringEncoding) yourData就是要转换的NSData先创建两个类import foundationimport coredataclass coredatastore: nsobject let storename = "news" let storefilename = "news.sqlite" var managedobjectmodel: nsmanagedobjectmodel if _managedobjectmodel == nil let modelurl = nsbundle.mainbundle().urlforresource(storename, withextension: "momd") _managedobjectmodel = nsmanagedobjectmodel(contentsofurl: modelurl) } return _managedobjectmodel! } var _managedobjectmodel: nsmanagedobjectmodel? = nil var persistentstorecoordinator: nspersistentstorecoordinator if _persistentstorecoordinator == nil let storeurl = self.applicationdocumentsdirectory.urlbyappendingpathcomponent(storefilename) var error: nserror? = nil _persistentstorecoordinator = nspersistentstorecoordinator(managedobjectmodel: self.managedobjectmodel) if _persistentstorecoordinator!.addpersistentstorewithtype(nssqlitestoretype, configuration: nil, url: storeurl, options: nil, error: &error) == nil abort() } } return _persistentstorecoordinator! } var _persistentstorecoordinator: nspersistentstorecoordinator? = nil // #pragma mark - documents directory var applicationdocumentsdirectory: nsurl let urls = nsfilemanager.defaultmanager().urlsfordirectory(.documentdirectory, indomains: .userdomainmask) return urls[urls.endindex-1] as nsurl }}import coredataimport uikitclass coredatahelper: nsobject let store: coredatastore! override init() super.init() let appdelegate = uiapplication.sharedapplication().delegate as appdelegate self.store = appdelegate.cdstore nsnotificationcenter.defaultcenter().addobserver(self, selector: "contextdidsavecontext:", name: nsmanagedobjectcontextdidsavenotification, object: nil) } deinit nsnotificationcenter.defaultcenter().removeobserver(self) } // #pragma mark - core data stack // main thread context var managedobjectcontext: nsmanagedobjectcontext if _managedobjectcontext == nil let coordinator = self.store.persistentstorecoordinator if coordinator != nil _managedobjectcontext = nsmanagedobjectcontext(concurrencytype: nsmanagedobjectcontextconcurrencytype.mainqueueconcurrencytype) _managedobjectcontext!.persistentstorecoordinator = coordinator } } return _managedobjectcontext! } var _managedobjectcontext: nsmanagedobjectcontext? = nil var backgroundcontext: nsmanagedobjectcontext if _backgroundcontext == nil let coordinator = self.store.persistentstorecoordinator if coordinator != nil _backgroundcontext = nsmanagedobjectcontext(concurrencytype: nsmanagedobjectcontextconcurrencytype.privatequeueconcurrencytype) _backgroundcontext!.persistentstorecoordinator = coordinator } } return _backgroundcontext! } var _backgroundcontext: nsmanagedobjectcontext? = nil // save nsmanagedobjectcontext func savecontext (context: nsmanagedobjectcontext) var error: nserror? = nil if context != nil if context.haschanges && !context.save(&error) nslog("unresolved error (error)") abort() } } } func savecontext () self.savecontext( self.backgroundcontext ) } // call back function by savecontext, support multi-thread func contextdidsavecontext(notification: nsnotification) let sender = notification.object as nsmanagedobjectcontext if sender === self.managedobjectcontext nslog("======= saved main context in this thread") self.backgroundcontext.performblock self.backgroundcontext.mergechangesfromcontextdidsavenotification(notification) } } else if sender === self.backgroundcontext nslog("======= saved background context in this thread") self.managedobjectcontext.performblock self.managedobjectcontext.mergechangesfromcontextdidsavenotification(notification) } } else nslog("======= saved context in other thread") self.backgroundcontext.performblock } self.managedobjectcontext.performblock self.managedobjectcontext.mergechangesfromcontextdidsavenotification(notification) } } }}在appdelegate里添加如下代码 // #pragma mark - core data helper var cdstore: coredatastore if _cdstore == nil _cdstore = coredatastore() } return _cdstore! } var _cdstore: coredatastore? = nil var cdh: coredatahelper if _cdh == nil _cdh = coredatahelper() } return _cdh! } var _cdh: coredatahelper? = nil func applicationwillterminate(application: uiapplication!) self.cdh.savecontext() }现在就可以在程序里使用coredata了。

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