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

1. Simply Open you Main Activity File and create below mention function:

        try {
       PackageInfo info = getPackageManager().getPackageInfo(
               "your.application.package.name",
               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) {
    }
   

1.1 Run you Application, this will generate a Hash key for your application.

2. Now, Open log cat and search with "KeyHash" and copy the hash key.

3. One you generate the Hash key you can remove this function.