Can I use Kotlin contracts to validate a minimum Android SDK level? I’m hoping for something like th...

# android

[andym]

Can I use Kotlin contracts to validate a minimum Android SDK level?
I’m hoping for something like the following, to encapsulate the version test with the feature test:

`at`ExperimentalContracts
fun isMyFeatureSupported(): Boolean {
    contract {
        // The implies expression fails to build with "Error in contract description:  unsupported construction"
        returns(true) implies (Build.VERSION.SDK_INT >= BUILD.VERSION_CODES.something)
    }

    return (Build.VERSION.SDK_INT >= BUILD.VERSION_CODES.something) &&
            myFeatureTest()
}

[tseisel]

Are you trying to make the Android linter understand that it is safe to call a method annotated with @RequiresApi ? I don't think you could do that with Kotlin contracts

[tseisel]

Just discovered this, might help: https://developer.android.com/reference/androidx/annotation/ChecksSdkIntAtLeast

[andym]

That looks awesome, thanks!

I had to update to the 1.2.0-alpha01 version of the annotations library to find it — I wish the Android docs specified which library dependency you need, and the minimum version