Is there a way to use Java 8 functional interfaces on Android API below 24?

Question

I can use retrolambda to enable lambdas with Android API level <24. So this works

myButton.setOnClickListener(view -> Timber.d(\"Lambdas work!\"));
         


        

Answer 1

For alternative, Lightweight-Stream-API also provides backport support. Like android-retrostreams metioned above, you have to replace some package names by using:

com.annimon.stream.function instead of java.util.function

com.annimon.stream.ComparatorCompat instead of java.util.Comparator