Vibrate pattern for incorrect input (Android)

I know how to create a vibrate pattern e.g:

Vibrator vibrator = (Vibrator) getSystemService(Context.VIBRATOR_SERVICE);
long pattern[] = new long[] {0, 200, 100, 200};
vibrator.vibrate(pattern, -1);

But I don't know which pattern will communicate "incorrect input". Are there any guidelines or predefined patterns?

EDIT: Seems like my question is a bit confusing. What I mean is that there are sounds that you can identify as success or fail, they are quite common. Bu开发者_如何学Pythont are there any vibration patterns that can be used for success or fail that most people would understand?

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Hopefully this answer comes through as better late than never! ;-)

I'm not aware of any particular standard in android, however it appears that in other areas of non-visual communications, repeating patterns of 3 are usually used to indicate distress or alarm. For example, the morse code for S.O.S is a repeating pattern of "threes". When learning to SCUBA dive, I was taught to tap my tank in patterns of 3 if I wanted to get urgent attention, and when going on a guided bushwalk, I've been instructed many times to carry a whistle, and to signal in long patterns of 3 if I wanted to indicate distress.

In lieu of a recognized standard, if you feel that you need to provide a success or fail pattern that uses vibrate, I would suggest a quick single vibration if you really want to indicate success, and a rapid triple vibration pattern to indicate a failure. I would also use this to supplement a visual cue, and of course to give the user the ability to turn off the vibration if they wish, as this will certainly contribute to additional battery drain.

Cheers,

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Don't. No other Android apps do this. Use a visual indication instead.

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I am not aware of any pattern guidelines, especially not one for incorrect input. Usually vibration is just used to convey a notification or the fact that something was pressed. For this 1-2 short vibrations is usually used.

Complex vibration patterns would most likely be useful for games and the like. If you want to alert the user of incorrect input I suggest using a Toast instead.

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Vibrator v;
v = (Vibrator) context.getSystemService(Context.VIBRATOR_SERVICE);
long[] p = { 50, 100, 50, 100 };
v.vibrate(p, -1);