Hey Kotlin enthusiasts.. I just wrote a little cla...

# announcements

[mplacona]

Hey Kotlin enthusiasts.. I just wrote a little class for a binary clock I'm building, and have made the code as small as I possibly could with my limited knowledge of Kotlin. Though I think there are still some optimisations to be made. Wondering if anyone here would care to have a look...

https://github.com/mplacona/Binary-Watch/blob/master/app/src/main/java/rocks/androidthings/binaryclock/MainActivity.kt#L36

[voddan]

mplacona: #C1H43FDRB is a specialized channel for that

[voddan]

L37: object : Runnable { can be just a lambda

[voddan]

L60: when with 2 options should really be an if, or a binary expression:
ledControl.setLed(0, 0, 1, hour in 10..19)

[voddan]

L71: same as L60:
ledControl.setLed(0, 1, 1, hourUnit in setOf(1, 3, 5, 7, 9))

[voddan]

L88: same as above:
ledControl.setLed(0, 2, 1, minute in (10..19) + (30..39) + (50..59))

[voddan]

Basically you abuse `when`s when they should be `if`s or plain binary expressions. Fix that and you code will shrink x3, not speaking about improved clarity

[voddan]

The next step would be to add extension methods like operator fun MAX72XX.set(x: Int, y: Int, z: Int, value: Boolean) = setLed(x, y, z, value). Then their usage becomes ledControl[0, 2, 1] = true

[mplacona]

Thank you @voddan! Really your feedback!

[voddan]

👌
Feel free to post the reworked version at #C1H43FDRB. Frankly I curious how much shorter can you get the code without the `when`s and with a bit of DSL