SimpleDownloadDialogFragment()
A confirmation dialog to be called before a download is triggered. Meant to be used in collaboration with DownloadsFeature
SimpleDownloadDialogFragment is the default dialog use by DownloadsFeature if you don't provide a value. It is composed by a title, a negative and a positive bottoms. When the positive button is clicked the download it triggered.
Consumers must implement the DownloadDialogListener interface on their Activity/Fragment to ensure that they will get notified on positiveButtonClick and negativeButtonClick events after activity/fragment is recreated.
If you are using this class from a android.support.v4.app.Fragment you must use a childFragmentManager or you will get a ClassCastException.