Facebook_Hash_Key_generator

//  Call printHashKey(this) method in onCreate method.

fun printHashKey(context: Context) {
try {
val info =
context.getPackageManager().getPackageInfo(context.getPackageName(), PackageManager.GET_SIGNATURES)
for (signature in info.signatures) {
val md = MessageDigest.getInstance("SHA")
md.update(signature.toByteArray())
val hashKey = String(Base64.encode(md.digest(), 0))
Log.e("Key hash", "printHashKey() Hash Key: $hashKey")
}
} catch (e: NoSuchAlgorithmException) {
Log.e("Key hash", "printHashKey()", e)
} catch (e: Exception) {
Log.e("Key hash", "printHashKey()", e)
}
}