What should be a presentation project for a job search?

Question

Android

How complex does it have to be, and do I need to use all the libraries I know?
Only some kind of activity with authorization through firebase and a couple of fragments to fill the sqlite database comes to mind, I don’t know if this is enough, or do I need to write my own buggy vatsap?
If at the same time I peek at some chips on the Internet, or if I forget to peek, is it considered that I wrote it myself, or do I need everything myself to demonstrate the learned material?

Answer 1

you need to look at the requirements in the vacancy. Open any vacancy, look at the list of technologies, libraries and architectures that are used in the desired company. It can be: Retrofit, RxJava/Coroutines, Jetpack, MVP/MVVM etc.
Sample projects: weather forecast, online store
And based on this, you make a project and place it on github.
Looking at your project, employers will evaluate the knowledge and ability to apply relevant technologies and architectures, and of course, code style

Answer 2

Few people look at pet projects in detail. Out of dozens of social security services, they only once started asking me about a home project, and then I collapsed) It is
more important to memorize the answers to the theory. Either all the same, everyone has their own, it is impossible to find a completely suitable person for your stack and everyone understands this.