How can I execute something just once per application start?

Question

I\'d like to implement an update checker in an application, and I obviously only need this to show up once when you start the application. If I do the call in the onCr

Answer 1

This continues on @Vitalii's answer.

After having setup the Application class, if access to the Activity is required, we can use the aptly named android library "Once" https://github.com/jonfinerty/Once.

In the Application class's onCreate method

Once.initialise(this)

In the Activity / Fragment class's onCreate / onViewCreated method.

val helloTag = "hello"
if (!Once.beenDone(Once.THIS_APP_SESSION, helloTag)) {
    //Do something that needs to be done only once
    Once.markDone(helloTag) //Mark it done
}