Progress Dialog during download

I use the following method to download an image.

  public void downloadFile(String uRl, String title, String description) {
    File direct = new File(Environment.getExternalStorageDirectory()
            + "/FPSWallpapers");

    if (!direct.exists()) {
        direct.mkdirs();
    }

    DownloadManager mgr = (DownloadManager) mContext.getSystemService(Context.DOWNLOAD_SERVICE);

    Uri downloadUri = Uri.parse(uRl);
    DownloadManager.Request request = new DownloadManager.Request(
            downloadUri);

    request.setAllowedNetworkTypes(
            DownloadManager.Request.NETWORK_WIFI
                    | DownloadManager.Request.NETWORK_MOBILE)
            .setAllowedOverRoaming(false).setTitle(title)
            .setDescription(description)
            .setDestinationInExternalPublicDir("/FPSWallpapers", title);

    mgr.enqueue(request);

}

It works normally, it downloads and saves the image. But I wanted to show a progressDialog while the download is done, and then display a message saying it was collapsed.

I tried the following:

    public void downloadFile(String uRl, String title, String description) {
    ProgressDialog progress = new ProgressDialog(mContext);

    while (!checkDownloadComplete.isDownloadComplete) {
        progress.setMessage("Downloading Music :) ");
        progress.setProgressStyle(ProgressDialog.STYLE_HORIZONTAL);
        progress.setIndeterminate(true);
    }
    File direct = new File(Environment.getExternalStorageDirectory()
            + "/FPSWallpapers");

    if (!direct.exists()) {
        direct.mkdirs();
    }

    DownloadManager mgr = (DownloadManager) mContext.getSystemService(Context.DOWNLOAD_SERVICE);

    Uri downloadUri = Uri.parse(uRl);
    DownloadManager.Request request = new DownloadManager.Request(
            downloadUri);

    request.setAllowedNetworkTypes(
            DownloadManager.Request.NETWORK_WIFI
                    | DownloadManager.Request.NETWORK_MOBILE)
            .setAllowedOverRoaming(false).setTitle(title)
            .setDescription(description)
            .setDestinationInExternalPublicDir("/FPSWallpapers", title);

    mgr.enqueue(request);
    progress.dismiss();

}

and the Broadcastreceiver class:

public class checkDownloadComplete  extends BroadcastReceiver {

public static boolean isDownloadComplete= false;

@Override
public void onReceive(Context context, Intent intent) {
    isDownloadComplete = true;
    Log.i("Download completed?", String.valueOf(isDownloadComplete));
}

}

But the app stays in some loop that hangs. How to show a progressdialog while downloading?

PS: The required permissions have been given;