The running app instance.
Type of the resource the handler handles.
Gets the number of times to retry a failed request for the resource.
Sets the number of times to retry a failed request for the resource.
The open function is passed the raw resource data. The handler can then process the data into a format that can be used at runtime. The base implementation simply returns the data.
The URL of the resource to open.
The raw resource data passed by callback from ResourceHandler#load.
The parsed resource data.
Resource handler used for loading Material resources.