Embrace declarative UI

I mainly do APP Developed , I have been in contact with small program development more or less before , Read about angular vue as well as  Thymeleaf And other front-end frameworks , In order to improve UI Development efficiency , All kinds of attempts have been made ！

Android Application layer usage Java To write , Its UI API Design is also a reference Java SWT,Android View The amount of code is also amazing , With state View Manage your own state , In imperative programming, process with state UI Components also need special care , Code changing component state may inadvertently change data , Some system components also have surprise gift packs , such as Android Of RadioGroup, call RadioGroup Of check Method to select a RadioButton, Will trigger 3 Time onCheckChanged event , To improve the development experience ,Google Also launched many expansion libraries , But it has always been based on tradition UI System , Can't better practice MVVM Pattern , and WEB End declarative UI Already ahead , This is why many people use JS do APP Development , Besides good development experience , And cross platform , Although the performance and volume have been roast , There are still many people who choose JS, I stubbornly adhere to the original development ,Google First of all Flutter Practice declarative UI, however Dart The language ecosystem has been tepid ,Android The system version follows Java Version bundle , New version of the Java Many new features of are not available ,Kotlin The emergence of , I have to admire it here Kotlin The foresight of the team , This language is similar to Dart Born in the same year , But it's completely compatible Java, Its grammar is also quite concise , When you catch Android After the free ride , Mixing ratio Dart It is better to ,Spring Boot Also accepted Kotlin,Android The system version does not follow Kotlin Version bundle , Plus its language expansion ability and simplified grammar ,Google stay 2019 Launched in, based on Kotlin The declarative form of UI：Compose, declarative UI The main feature of is to create UI、Controller Model  Follow View Strictly separate 、 Auto update , Maybe I'm not used to it at first , But don't be too happy after getting familiar with it ！

Recent contact iOS Development , Basic entry , Its traditional UI The way , I'm really not used to the layout , I didn't get it iOS Constraints , Just give up , Since the official has launched a declarative UI：SwiftUI, Why bother yourself ！ I experienced SwiftUI after , Feeling Android、iOS The declarative form of UI It doesn't make much difference in use , It is simple and clear to use , Development efficiency is greatly improved , Don't worry about the compatibility of screen size ！

Changing habits is really uncomfortable , But still embrace new things , Officials continue to push through the old and bring forth the new , We should also keep learning , Improve yourself , There are differences in programming languages , But good programming ideas can be universal , The improvement of language is to realize better programming ideas , The ultimate goal is to improve efficiency ！

Wordy end ！