Source of Android's lock screen [closed]

Solution 1:

Do an actual full checkout of the source according to Google's directions.

As of Android 4.2, the keyguard source is at frameworks/base/policy/src/com/android/internal/policy/impl/keyguard. There's a mirror on GitHub you can look at online (I pegged this link to the JB MR 1.1 release in case the location changes again in a future release).

When this question was originally answered, Android 2.3 and lower had their lockscreen source at frameworks/policies/base/phone/com/android/internal/policy/impl. You can also view these sources online in their GitHub mirror; that source is still kicking in the current repo, but hasn't been updated in several years.

Solution 2:

For those who are on kitkat (android 4.4) or above source code, it seems the code has been moved to

frameworks/base/packages/Keyguard