Feature/log

[VitaminPSG]

Logs usage:

• Equivalent of Log.i(javaClass.simpleName, message)

override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)
        setContentView(R.layout.test_activity)
        i("onCreate")
    }

   i {
            when (Build.VERSION.SDK_INT) {
                Build.VERSION_CODES.HONEYCOMB -> "HONEYCOMB"
                Build.VERSION_CODES.FROYO -> "FROYO"
                else -> "UNKNOWN"
            }
       }

i("Custom tag", "Log my version ${Build.VERSION.SDK_INT}")

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[googlebot]

CLAs look good, thanks!

[sourabhv]

I'd prefer it as

info("I have a snake in my boot")
error("To infinity and ... StackOverflowException")
wtf("WTF! I still have a snake in my boot")

And the implementation could be

inline fun Any.info(message: String) = Log.i(javaClass.simpleName, message)

But I don't find this very useful

[romainguy]

The isLoggable aren't super useful since at that point you've already allocated all your strings.

[lukaspili]

Many kotlin developer create their own log() function, which calls Timber.d rather than Log.d.
Not sure it's such a great idea to pollute the IDE import window with an identical log() function that you don't want to use.
What about adding a prefix like androidDebug(), androidError(), etc?

[JakeWharton]

I don't think this provides a lot of added value. It's mostly code golfing character count. The lazy string one is interesting to potentially add as static extensions onto Log that check isLoggable, but we can't do that until https://youtrack.jetbrains.com/issue/KT-11968 is fixed so going to close for now.