Unexcepted Token

- [ok] I have verified there are no duplicate active or recent bugs, questions, or requests.
- [ok] I have verified that I am using the latest version of MaterialStyledDialogs.
- [ok] I have given my issue a non-generic title.
- [ok] I have read over the [README](https://github.com/javiersantos/MaterialStyledDialogs/blob/master/README.md) and [Wiki](https://github.com/javiersantos/MaterialStyledDialogs/wiki) (before asking questions on how to do something).

###### Reproduction Steps

```
@Override
public void onBackPressed() {
new MaterialStyledDialog.Builder(this)
.setTitle("You pressed Back!")
.setDescription("Are you sure you want to disconnect?")
.setHeaderColor(R.color.colorPrimary)
.setIcon(R.drawable.app)
.setPositiveText("Yes!")
.onPositive(new MaterialDialog.SingleButtonCallback() {
@Override
public void onClick(@NonNull MaterialDialog dialog, @NonNull DialogAction which) {
Log.d("MaterialStyledDialogs", "Do something!");
})
.setNegativeText("No!")
.withIconAnimation(true).show();
}

```
###### Expected Result

###### Actual Result
It gives unexpected token syntax error

Start with the provided onBackPressed reproduction and capture the exact compiler error and line; the issue names no repository file or test. Done means the syntax error is reproduced and the example compiles, with the resulting dialog behavior confirmed.

Written by the indexing model from the issue text.