Zoom with 1 finger (1 hand to hold and do the gesture)

asked 2014-01-03 11:28:05 +0200

TeHeR gravatar image

updated 2014-02-19 23:38:55 +0200

In few applications, it could be interesting to zoom with only one finger (web browser of course, but also gallery, mail, etc...). Here I'm talking about an adaptive zoom factor, not like it already works on web pages to feet text or images with a double-tap. The pinch-to-zoom works well too, but requires 1 hand to do the gesture while the other hold the phone.

Here are few gesture ideas (some are already implemented in other devices):

  • swirl: like on the N900
  • long press + move: not already implemented, but described here. But I personally think that long press could be useful for other things (contextual menu, ...).
  • double touch drag as it seems to be called on recent Android version (video and doc). The actions to do are: tap + long press + move up or down (or double tap, but keep the 2nd tap pressed/hold, and then move). It could zoom / unzoom depending if your are moving up or down.

Does somebody know if there are restricted by patent or something like that (as suggested bu @janick in comments)?

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I'd consider splitting this question to be more application specific so that people can vote for what's more important to them. There is already one for Maps for example: https://together.jolla.com/question/1015/zoom-buttons-in-maps-app/ You could then make a per application suggestion.

gabriel ( 2014-01-03 11:55:17 +0200 )edit

eric: any way to rename the tag "pitch-to-zoom" to "pinch-to-zoom"? :-) Or maybe just zoom, a bit more generic.

gabriel ( 2014-01-03 11:58:03 +0200 )edit

@gabriel: done.

eric ( 2014-01-03 12:00:03 +0200 )edit

Thanks, sorry for the miss-spelling.

TeHeR ( 2014-01-03 12:21:43 +0200 )edit

@gabriel: Concerning splitting, the focused point here it is more a general behavior for the UI, than specific application implementation... Don't you think so?

TeHeR ( 2014-01-03 12:26:10 +0200 )edit