Evaluating Tap-and-Drag: A Single-Handed Zooming Method

  • Manoel FarhadEmail author
  • I. Scott MacKenzie
Conference paper
Part of the Lecture Notes in Computer Science book series (LNCS, volume 10903)


We conducted a user study comparing the accuracy and speed of two zooming methods for touch-screen devices: tap-and-drag (a single-handed zooming method) and the traditional pinch-to-zoom (performed with one hand). The study involved 12 participants and employed a Google Pixel 2 mobile phone. The results for task completion time favored tap-and-drag, which was about 18% faster than pinch-to-zoom. The accuracy results for tap-and-drag were slightly lower with an average accuracy of 84.8% compared to 87.9% for pinch-to-zoom. This was attributed to users being unfamiliar with tap-and-drag. As users became more familiar and comfortable with tap-and-drag, accuracy improved. Tap-and-drag was about 47% more efficient than pinch-to-zoom, with efficiency measured as the number of gestures to complete a trial. Participants indicated a preference for tap-and-drag for one-handed zoom gestures.


Zoom methods Gesture input Mobile interaction Touch-screen input 


  1. 1.
    Boring, S., Ledo, D., Chen, X.A., Marquardt, N., Tang, A., Greenberg, S.: The fat thumb: using the thumb’s contact size for single-handed mobile interaction. In: Proceedings of the 14th International Conference on Human-Computer Interaction with Mobile Devices and Services - MobileHCI 2014, pp. 39–48. ACM, New York (2012)Google Scholar
  2. 2.
    Karlson, A.K., Bederson, B.B., Contreras-Vidal, J.L.: Understanding one-handed use of mobile devices. In: Lumsden, J. (ed.) Handbook of Research on User Interface Design and Evaluation for Mobile Technology, pp. 86–101. IGI Global, Hershey (2008)CrossRefGoogle Scholar
  3. 3.
    Lai, J., Zhang, D., Wang, S.: ContextZoom: a single-handed partial zooming technique for touch-screen mobile devices. Int. J. Hum. Comput. Interact. 33, 475–485 (2016)CrossRefGoogle Scholar
  4. 4.
    Malacria, S., Lecolinet, E., Guiard, Y.: Clutch-free panning and integrated pan-zoom control on touch-sensitive surfaces: the CycloStar approach, In: Proceedings of the ACM SIGCHI Conference on Human Factors in Computing Systems - CHI 2010, pp. 2615–2624. ACM, New York (2010)Google Scholar
  5. 5.
    Miyaki, T., Rekimoto, J.: Zooming and scrolling control model for single-handed mobile interaction. In: Proceedings of the 11th International Conference on Human-Computer Interaction with Mobile Devices and Services - MobileHCI 2009, Article No. 11. ACM, New York (2009)Google Scholar
  6. 6.
    Silfverberg, M., Korhonen, P., MacKenzie, I.S.: Zooming and panning content on a display screen. In: International Patent Number WO 03/021568 A1. Assignee: Nokia Corp., Helsinki (2003)Google Scholar
  7. 7.
    Ti, J., Tjondronegoro, D.: TiltZoom: tilt-based zooming control for easy one-handed mobile interactions. In: Proceedings of Internet of Things Workshop at OZCHI 2012, pp. 1–4. ACM, New York (2012)Google Scholar

Copyright information

© Springer International Publishing AG, part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of Electrical Engineering and Computer ScienceYork UniversityTorontoCanada

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