Facebook Android Generate Key Hash

Question

Trying to create an android app with Facebook integration, I\'ve gotten to the part in the docs where you have to generate a key hash file, it specifies to run the following

Answer 1

At last :)

Here my story :

1. Add this code to your main activity, after you set layout.

   try { 
     PackageInfo info = getPackageManager().getPackageInfo("PROJECTNAME", PackageManager.GET_SIGNATURES);
     for (Signature signature : info.signatures) {
         MessageDigest md = MessageDigest.getInstance("SHA");
         md.update(signature.toByteArray());
         String sign=Base64.encodeToString(md.digest(), Base64.DEFAULT);
         Log.e("MY KEY HASH:", sign);
         //textInstructionsOrLink = (TextView)findViewById(R.id.textstring);
         //textInstructionsOrLink.setText(sign);
         Toast.makeText(getApplicationContext(),sign, Toast.LENGTH_LONG).show();
     }
   } catch (NameNotFoundException e) {
       Log.d("nope","nope");
   } catch (NoSuchAlgorithmException e) {
   }
   

2. Change PROJECTNAME to your package name!

3. Sign your app (Android Tools->Export Signed Application)
4. In your main activity where you paste code from 2 option, in your layout create TextView with id textstring
5. uncomment two lines, that your sign code would be set to TextView 6 Wuolia, you have your HASH , install app on your phone!!! and check your hash Key!
6. Now when it is visible , go to facebook app you created and add it to [Key Hashes]
7. Note that your package name should be same as on facebook [Package Name] under [Key Hashes]
8. Have a nice day :)