Comparative analysis of software approaches in development of mobile applications for Android and iOS

U ovome radu uspoređen je razvoj mobilnih aplikacija za Android i iOS platforme. Obje aplikacije spajaju se na dostupni poslužitelj kako bi se mogla oblikovati korisnička sučelja. Uvodnim dijelom rada prikazane su najzastupljenije mobilne platforme današnjice te opis arhitekturalnih komponenti od kojih se sastoje. Opisano je korištenje programskih jezika Java, Objective-C s naglaskom na programske jezike Kotlin i Swift koji su ih zamijenili u razvoju aplikacija. Opisana je arhitektura MVP korištena za razvoj praktičnog dijela rada. Prikazan je kratki pregled metoda testiranja programske podrške kao i načela razvoja SOLID pri pisanju programskog koda. Opis razvoja svake od platformi započinje opisom korištenih biblioteka te ključnih elemenata potrebnih za razvoj aplikacija. Značajnije biblioteke korištene za razvoj Android aplikacije uključuju Retrofit i Koin, a za razvoj iOS aplikacije biblioteke Alamofire te Swinject. Na kraju rada dana je usporedba mobilnih platformi s gledišta mrežne razine arhitekture s kreiranim modelima, mrežnim klijentima, interaktorima i repozitorijima.The development of Android and iOS applications is presented in this paper. Both applications connect to the server to fetch the data required for the creation of user interfaces. In the introductory part of this paper the two most popular mobile platforms are described along with the description of architectural components of each platform. The Java and Objective-C programming languages are described with the emphasis on Kotlin and Swift programming languages which replaced the former ones in the application development. MVP architecture, which was used for the application development, is also described. Furthermore, testing methods and SOLID principles are also described in the following section. Overview of application development starts with the explanation of libraries needed for the development after which the explanation of key application elements is given. The most important libraries used for Android application are Retrofit and Koin, while for iOS application those are Alamofire and Swinject. With the ending section the mobile platforms are compared with the emphasis on the network architecture layer with created models, network clients, interactors and repositories