Kotlin Standard Library Cookbook

How it works...

We are using the edit() extension function provided by the KTX library for the SharedPreferences class. It takes the lambda block, including the operations we want to perform on the SharedPreferences.Editor instance, and automatically invokes the SharedPreferences.Editor.apply() function to submit the transaction. The lambda block passed to the edit() function implements the type, SharedPreferences.Editor.() -> Unit, which allows us to access an instance of Editor through the implicit this modifier.

If you'd like to submit operations applied to the Editor using the blocking commit() instead of the asynchronous apply() function, you should pass an additional commit = true parameter to the edit() function.