Log Android signatures

MainApplication.java

  @Override
  public void onCreate() {
      super.onCreate();

      try {
          String packageName = getPackageName();
          PackageInfo packageInfo = getPackageManager().getPackageInfo(packageName, PackageManager.GET_SIGNATURES);
          for (Signature signature : packageInfo.signatures) {
              MessageDigest messageDigest = MessageDigest.getInstance("SHA");
              messageDigest.update(signature.toByteArray());
              String signatureAsString = Base64.encodeToString(messageDigest.digest(), Base64.DEFAULT);
              Log.d(TAG, signatureAsString);
          }
      } catch (PackageManager.NameNotFoundException e) {
          e.printStackTrace();
      } catch (NoSuchAlgorithmException e) {
          e.printStackTrace();
      }
  }