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Android's Locking Pattern














Recently there was so much talk about the locking feature that is present in Android phone.So I thought to check it out.Unlike other phones which require a four digit number for unlocking "Android" uses an innovative approach to lock your phone and prevent accidental dialing.It puts nine dots arranged in a square pattern (as in case of a grid)on the touch screen along with the caption "Draw pattern to unlock".

A pattern can be anything with the following constraints::
  • It needs to contain 4 dots.
  • Once a dot is lit,it can't be used again.
  • You can use one or several "knight moves" such as [0 5 4 2]
  • You cannot go over an unlit dot without lighting it.For example, the pattern [0 2 1 4] is illegal, because moving your finger between 0 and 2 will light 1.
  • Once a dot is lit, you can use it to reach another unlit dot. For example,both [0 4 3 5] and [0 4 5 3] are legal.

Kind of tricky .Isn't it?

Also some people using the phone have noticed that the repeated locking-unlocking process on the touchscreen interface may leave traces so that the unlock password can be guessed at some of the time.Solution to this problem from user side is to wipe down the screen whenever the phone is locked and there should be the alternate traditional locking system in the phone and this can be made an optional service for the reluctant users.Like all other Google products this is also in its Beta stage and there are chances for the improvement.You can also refer to this video and the links for more information.





Links to check::
Tech Crunch
Beust

Watch out these videos::
Android pattern
Unlocked Google phone
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