Instead, by default IntelliJ will advise us to use property access syntax over of getters by highlighting lint warnings. To fix the 'Java: how to fix (Kotlin) Backend Internal error: Exception during code generation' issue using 'Update Dependencies' in your Java project, you can follow these steps: Open your projects adle file. But language doesn't counsel us to do so. Of cause, we still can write getters manually and hide values, and use getters access. We will keep changes internally to FlightData object.īut because of property access syntax in Kotlin, we dispose internal implementation of our classes in sources (at compile time they will generate getters), and now I have to change all the places FlightData was used, just because of internal FlightData changes. Later, I will probably change the internal structure of FlightData class – it will contain location description object, that will contain information about the location and localOperatorPointIndex, instead of separate fields.įrom Uncle Bob’s Clean Code book we know, that objects should hide internal implementation but provide behavior.Īnd in Java, we will not change any classes, that uses flight data. Then we will use data from this object in RequestGenerator like this I have a class, responsible for providing flight information Kotlin is a modern statically typed programming language used by over 60 of professional Android developers that helps boost productivity, developer satisfaction, and code safety. I’m writing an app, that takes flight information and generates flight plan request according to air traffic control rules. It definitely requires less boilerplate and a code is more readable, It allows tons of great features, and I use it as well.īut today I’ll write about biggest Kotlin disadvantage I see so far.Īnd it’s not about default final classes, it’s about encapsulation problems and about the king of SOLID principles – single responsibility. If you need files to persist - even after the app is uninstalled - use external storage.Ĭontext.openFileOutput(fileName, Context.MODE_PRIVATE).There is a lot of articles about why android developers should use Kotlin instead of Java.

When you uninstall the app, files saved in the internal storage directory are deleted. The system creates an internal storage directory for each app and names it with the app’s package name. The internal storage, by default, is private to your app. Reading and writing files in Android using Kotlin Android

Internal kotlin