Key hash for Android-Facebook app

Question

I\'m working on an Android app, in which I want to integrate a Facebook posting feature. I downloaded the Facebook-Android SDK, and I got the readme.md (text file) in there,

Answer 1

The best approach is to use the following code:

private void getHashKey(String pkgName)
{
    try
    {
        PackageInfo info = getPackageManager().getPackageInfo(pkgName, PackageManager.GET_SIGNATURES);
        for (Signature signature : info.signatures)
        {
            MessageDigest md = MessageDigest.getInstance("SHA");
            md.update(signature.toByteArray());
            String hashKey = Base64.encodeBytes(md.digest());
            _hashKey_et.setText(hashKey);
            Log.i("KeyTool", pkgName + " -> hashKey = " + hashKey);
        }
    }
    catch (NameNotFoundException e)
    {
        e.printStackTrace();
    }
    catch (NoSuchAlgorithmException e)
    {
        e.printStackTrace();
    }
}

But I was so frustrating with the fact that there is no simple tool to generate the HashKey for the Facebook app. Each time I had to play with Openssl and Keytool or to use a code to get the hash from signature ...

So I wrote a simple KeyGenTool that will do that work for you: -> KeyGenTool on Google Play <-

Enjoy :)