Design and implementation of mobile application in Kotlin language

The bachelor's thesis deals with designing and implementing a mobile application created in the Kotlin language. Specifically, it is an application focused on psychological disorders and self-development. This work aims to make and deploy such a mobile application so anyone can download it. The work is divided into four main parts. In the first part, the terms psychological disorder and self-improvement are defined, and then a graph is drawn up, which lists the number of occurrences of the most frequently mentioned disorders. Finally, the sources used for this chart are described. The next part is devoted to analyzing existing solutions, which tests applications dealing with similar themes and evaluates individual criteria. From these, the requirements for the created application are then determined. Based on these requirements, an application design is subsequently created, including a use case analysis, a description, a reason for choosing Kotlin, and descriptions of other programming languages primarily used for creating mobile applications. The end of this section contains the design of individual screens. The implementation part describes the technologies used outside of Kotlin and then describes the individual components of the code. The course of development and distribution is also included. After implementation, the application is tested, and at the end, suggestions for expanding the application are proposed, and experience gained by the author during the application development is shared.