Introduction
Android is an open source operating system based on the Linux kernel, initially developed by Android Inc., which Google bought in 2005. Initially, Android was developed to support touch screen devices like smartphones. These devices support different types of screen locks, like swipe lock, PIN lock, pattern lock, gesture lock, facial lock, etc.
Swipe lock unlocks the screen just by swiping a defined area on the screen with your fingertips. PIN lock is when you enter a correct pin, the screen will be unlocked. Pattern lock unlocks the screen when the user creates a pattern by joining nine circles on the screen, which is already saved on your system. This article is only based on the pattern locking system and does not cover biometric locking systems available on the phones.
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