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Sorry, I don't understand what you're trying to say. Why can't you guess the pattern by looking at the smudges?
by psychometry 7y ago
Sorry, I don't understand what you're trying to say. Why can't you guess the pattern by looking at the smudges?
- alasano 7y agoYou can pass over the same point more than once which would obfuscate the direction of the original passes on the smudge.
- q_eng_anon 7y agoquick somebody do the combinatorics on this
- psychometry 7y agoThe number of unique paths is theoretically infinite since the path could be infinitely long, but there's obviously some software limitation on that.
- ok_coo 7y agoBecause the pattern can go back over part of the screen that's already smudged.
- onion2k 7y agoA valid pattern on Android is to swipe the middle 3 dots backwards and forwards 3 times like left-middle-right-middle-left-middle-right. The smudge on the screen just shows it uses the middle three dots some number of times.
- moviuro 7y agoNot on Android 9 (tested on my Nokia 7 Plus). Once you pass on a dot, you can't get back to it. You also can't "jump over" dots (top left - top right is actually top left - top - top right).
- Karunamon 7y agoThey changed that at some point. Back in the KitKat days, I once pranked a friend by changing their pattern to the same pattern as before, but by skipping the middle dot (top left -> bottom right). If you did it fast enough, the gesture looked identical to the old pattern.