Android GetHashKey

GetHashKey.kt

private fun getHashKey() {
    try {
        if (Build.VERSION.SDK_INT > 28) {
            for (a in packageManager.getPackageInfo(
                packageName,
                PackageManager.GET_SIGNING_CERTIFICATES
            ).signingInfo.apkContentsSigners) {
                toLog(a.toByteArray())
            }
        } else {
            for (a in packageManager.getPackageInfo(
                packageName,
                PackageManager.GET_SIGNATURES
            ).signatures) {
                toLog(a.toByteArray())
            }
        }
    } catch (e: Exception) {
        e.printStackTrace();
    }
}

private fun toLog(byteArray: ByteArray) {
    try {
        val md = MessageDigest.getInstance("SHA")
        md.update(byteArray)
        Log.d("KeyHash", Base64.encodeToString(md.digest(), Base64.DEFAULT))
    } catch (e: Exception) {
        e.printStackTrace()
    }
}