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Xcode

UIAStepper missing in iOS

18. September 2015 by Marc Schlüpmann Leave a Comment

If you want to automate your user interface for testing or to take screenshots using fastlane you can use Apple’s UI Automation framework. Every element from UIKIt has a corresponding class in UI Automation – every? No, not every element.

The UIStepper class does not has a corresponding UIAStepper class in the testing framework, but it would be nice to automate it, too. If you record your activities on the UI with Instruments you will get something like this:

target.frontMostApp().mainWindow().tableViews()[0].tapWithOptions({tapOffset:{x:0.37, y:0.47}});

If you want to create this not using Instruments it becomes tricky. Even if you try to use the accessibility labels you will fail. By the way: The UIStepper does not has accessibility properties in Interface Builder.

So, what’s the solution?

If you look at the array that is returned by calling elements() on the parent element you will find two UIAButton entries. One with the name „Increment“ and one with the name „Decrement“ – and these two can be used to automate UIStepper actions!

To simulate a tap on the ‚+‘ button on a UIStepper you can simply write:

window.tableViews()[0].cells()[4].elements()["Increment"].tap()

and

window.tableViews()[0].cells()[4].elements()["Decrement"].tap()

to simulate a tap on the ‚-‚ button respectively.

But there is a small snare: The names of the elements are localized! So you have to check for your localization and use the correct strings. For German the strings are ‚Erhöhen‘ and ‚Verringern‘.

It’s that easy, but not documented by Apple. Have fun!

Posted in: iOS Programming Tagged: iOS, Programming, UI Testing, Xcode

Running Xcode 6.4 under El Capitan

10. Juli 2015 by Marc Schlüpmann Leave a Comment

If you plan to update your Mac to El Capitan beta (10.11) you will not be able to run Xcode 6.4 anymore without some tricks. To get it running again you have to perform the following steps – Warning: With the following steps you may harm your system and you do this on your own risk!

  • Copy the file /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/Exceptions.plist to your desktop
  • Open the file with a Plist editor that supports the plist-binary formst (Xcode for example)
  • search for Xcode – (case sensitive)
  • Change the entries HardDisabled to NO in both search results
  • Save the file
  • That was the easy part 😉

As Apple has introduced a new security system (System Integrity Protection – SIP) in El Capitan, you have to disable it:

  • Open a terminal
  • Change the boot-attributes in the NVRAM: sudo nvram boot-args='rootless=0'
  • Restart your machine now
  • Press CMD+S to restart in single user mode
  • Go to the directory /System/Library/Sandbox
  • Edit the file rootless.conf with sudo pico rootless.conf
  • Look there for the entry booter /System/Library/CoreServices and change the booter to a *
  • Save the file and reboot with shutdown -r now
  • Now you can boot into the familiar OS X graphical UI.

Last steps to perform:

  • Overwrite the Exceptions.plist file in /System/Library/CoreServices/CoreTypes.bundle/Contents/Resources/ with the edited version on your desktop (see above) – this is possible now
  • Despite the fact, that there is still the forbidden icon on top of the Xcode 6.4 app icon you can run it – after another restart the icon appeared without the forbidden sign on my machine
  • To secure your system again you should change the rootless parameter again: sudo nvram boot-args='rootless=1' in the Terminal and restore the rootless.conf file to its original content (see above)
  • That’s it!
Posted in: iOS Programming, OS X Programming, Work Tagged: El Capitan, OS X, Xcode

Xcode 5 Crashkurs

18. Dezember 2013 by Marc Schlüpmann Leave a Comment

Kurz vor Jahresende war ich noch einmal im schönen Graz und habe für video2brain ein weiteres Videotraining aufgezeichnet: Der Xcode 5 Crashkurs.

In diesem Training geht es um die Nutzung von Xcode 5 und wie man als Programmierer Apple’s Integrierte Entwicklungsumgebung am besten nutzt. Hierbei sollen sowohl Einsteiger als auch bereits erfahrenere Nutzer einbezogen werden. Das Spektrum des Videotrainings umfasst die Installation, erste Schritte, eine Erläuterung der Oberfläche und geht hin bis zur Nutzung von Xcode Server.

1327

Posted in: iOS Programming, OS X Programming, Work Tagged: iOS, OS X, Programming, Videotraining, Xcode
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