All query params should be url encoded. "url" and "title" are required, all others are optional.
Supported query parameters are:
url: The url of the file to download. Should start with http or https.
title: The name to show in the UI
identifier (optional): a string used to identify the download in the downloadCallback function, so that multiple simultaneous downloads can be differentiated
details (optional): additional information to show below the title. A description of the download.
date (optional): a date in yyyy-mm-dd format to show below the details. Can be used to show a publish date for a podcast, for example.
After a download is started, the callback function will be called with a data object with the following fields:
identifier: the identifier passed to the downloadFile command
event: "progress", "done", or "error"
If event is "progress":
bytesWritten: the number of bytes that have been downloaded
expectedBytes: the file sized indicated by the server
If event is "error":
errorMessage: A string indicating the reason for the error
Showing UI
To show the download manager user interface, open the following url: