As an addendum: I've verified that I can print from the iPhone Photos app to
my printer using AirPrint. The issue is doing it programmatically.
> On May 11, 2018, at 5:50 PM, Carl Hoefs <newsli...@autonomy.caltech.edu>
> wrote:
>
> Is printing from iOS still possible? Is AirPrint still a viable SDK to use?
>
> I can get AirPrint to bring up a printer selection screen, but it won't
> actually select a printer.
>
> I present the printer selection screen:
>
> UIPrinterPickerController *printPicker =
> [UIPrinterPickerController
> printerPickerControllerWithInitiallySelectedPrinter:nil];
> [printPicker presentAnimated:YES completionHandler:
> ^(UIPrinterPickerController *printerPicker, BOOL userDidSelect,
> NSError *error)
> {
> // . . .
> }];
>
> By default, this presents a tableview with an entry that says:
>
> "Printer Select Printer >"
>
> and below, it shows a preview of the image that will be printed. So far, so
> good.
>
> If I tap on "Select Printer >" it takes me to a tableview list of the
> available printers.
> If I tap an available printer, it takes me back to the default screen, with
> NO printer selected!
>
> The printer is an AirPrint-capable device (Canon), on the local wifi with the
> iPhone. I've implemented all of the UIPrintInteractionControllerDelegate
> callbacks (none of which get called).
>
> What is going wrong here? There's nothing in the Xcode log.
>
> -Carl
>
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