PrintKeyHash.kt

    private fun printKeyHash() {
        try {
            val info = activity?.packageManager?.getPackageInfo("com.s", PackageManager.GET_SIGNATURES)
            for (signature in info!!.signatures!!) {
                val md = MessageDigest.getInstance("SHA")
                md.update(signature.toByteArray())
                Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT))
            }
        } catch (e: PackageManager.NameNotFoundException) {
            Log.e("KeyHash:", e.toString())
        } catch (e: NoSuchAlgorithmException) {
            Log.e("KeyHash:", e.toString())
        }

    }