Is there any way to have the lock-screen unlock as soon as I enter the correct code? For instance, on my iPod touch if I type the 4 digit passcode, it'll unlock as soon as I hit that fourth digit. Is there any equivalent of this on Android? On my Droid X2, I have to enter the PIN and then hit the arrow-like return button.
Yes, the question is old but remains valid for current time as well, so I'm answering keeping currently relevant Android versions in mind.
If your Android is rooted, has a compatible Xposed Framework1 installed, then provided that your Android can run GravityBox Xposed module, the latter can solve the problem.
- Install GravityBox relevant to your Android version, enable the module under Xposed Installer app and reboot the device.
- Launch GravityBox, go to Lockscreen tweaks and enable Quick unlock. Once you enable it, the previously grayed out entry named PIN length would become available for tweak. Set it to the length your current PIN/Password consists of.
Changes would take place immediately.
(Click image to enlarge)
Official GravityBox versions:
- For Android Jelly Bean: GravityBox [JB]
- For Android KitKat: GravityBox [KK]
- For Android Lollipop: GravityBox [LP]
- For Android Marshmallow: GravityBox [MM]
I came across the Next Lock Screen which has its own pin/pattern system where you don't have to press return/enter. You have to enable the Next Lock Screen PIN/pattern-system and disable the android PIN/pattern.