Key hash for Facebook Android SDK

Question

I can\'t figure out how to get the Key Hash required to use the Facebook Android SDK. I figured out that I can use keytool with these commands:

Answer 1

Best way is to generate Key-Hash using code:

 public static void generateKeyHash(Context context) {
    try {
        PackageInfo info = context.getPackageManager().getPackageInfo(
                "com.example.user2.testapp",
                PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures) {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            Log.d("KeyHash:", Base64.encodeToString(md.digest(), Base64.DEFAULT));
        }
    } catch (PackageManager.NameNotFoundException e) {

    } catch (NoSuchAlgorithmException e) {

    }
}

call this method once and generate key-hash, enjoy