If I use the following code
NSArray * activityItems = @[tempFileURL];
UIActivityViewController * activityViewController =
[[UIActivityViewController alloc] initWithActivityItems: activityItems
applicationActivities: nil];
[self.parentViewController presentViewController: activityViewController
animated: YES
completion: nil];
Then select "Save to Files", I will be presented with the following dialog:

I would like to introduce this dialog box without having to first migrate UIActivityViewController(and "save to file"). I could not find an alternative way to do this. Any suggestions?
In particular, my question boils down to the following: How can I tell the user where the file should be saved, if not UIActivityViewController?
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