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Swipe up to events sensitive to what exactly?!

asked 2015-04-07 18:40:28 +0300

xenoide gravatar image

Dear all,

what I have noticed recently is that it is not always easily possible to open the events view with a swipe-up. Or to perform a swipe down by the way.

The successful execution of a swipe up or down gesture is not dependent on contact area thus pressure on the display as it works with very gentle and very strong pressure equally well or bad.

Furthermore, distance of the swipe does not really matter, a "long" swipe will fail sometimes as well as a much shorter one.

While it is mandatory to start at the very beginning of the display border a certain speed is required. However I could not verify if this means "constant speed" or "acceleration" of the movement.

Trying to perfom 10 swipes up and down in alternating manner will result in 50% failure sometimes, sometimes all of them work instantly (without any open apps by the way).

I would like to know what exactly are the criteria for a swipe gesture to be identified as such and which other constraints could affect this gesture from not being properly detected?

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answered 2015-04-07 18:48:43 +0300

lakutalo gravatar image

updated 2015-04-07 18:50:14 +0300

The only criteria to open event screen are having a capacitive connection between your finger and the display, and that you start your swipe from outside the display (i.e. start at the LED) moving upwards. As the display is a capacitive one, it is not sensitive to pressure.

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If you would just try to do it 10 times, so up - down - up - down, opening and closing events view, will all of them work for you equally well or will some of them fail?

xenoide ( 2015-04-07 18:51:12 +0300 )edit
1

I have moved my finger up and down for ten times now and still doing. No change in expected behaviour. Maybe your fingertips are too dry so that the connection is too weak. Let another person do the same. If you use a cover foil it could be shielding to much. If none of above said helps it could be a case for repair/warranty.

lakutalo ( 2015-04-07 18:55:51 +0300 )edit
2

thanks a lot for the try. I will check it with someone else to try, hopefully it is not the hardware itself...

xenoide ( 2015-04-07 19:03:29 +0300 )edit

I noticed the same and was asking myself, too, but found out that if you do it slow, snail-like slow, it works reliable every time. So, time/speed is important for detection IMO. (plain display/no foil)

fooza ( 2015-04-07 19:36:05 +0300 )edit
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answered 2015-04-07 20:28:28 +0300

xenoide gravatar image

updated 2015-04-07 20:29:40 +0300

Ok, did some further testing with another person. Basically we came to the following conclusion:

It's not a matter of dry or wet fingers, as long as your fingers are not superdry (!) this does not have any influence.

Speed has a big (!) influence. Acceleration seems to worsen the reliability big time, so try to swipe with constant speed. Also not too fast and not too slow. Somewhat 1 cm/s seems to work best. Not getting faster or slower.

Start approx 5 mm below (or above for a down-swipe) the active display area. This means already ON the glass, not at the very border of the phone.

Additionally, after a reboot reliability increases greatly, when the phone is rebooted, all swipes work instantly. After some days of usage this seems to change. I need to observe this behaviour further to get more qualified reports, though.

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That's probably the best recipe for a good swipe out there! :)

lakutalo ( 2015-04-07 20:37:01 +0300 )edit
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Asked: 2015-04-07 18:40:28 +0300

Seen: 275 times

Last updated: Apr 07 '15