Hot answers tagged lock-screen
After enough frustration with this issue I actually moved to a custom ROM. This mainly happens due to rotation as mentioned by Colin I used to face this issue when I had the phone in landscape mode, in an app and then locked the phone! When it came back on there was major juggling and it used to end up this way! Software Fix: Pray that samsung fixes it! ...
Try Slide Lock. It is awesome. Just like iOS version. (click image for a larger version)
Maybe: lifehacker: Three Ways to Improve Your Android's Lock Screen Security recommending: Picture Password Hidden Lock Unfortunately, native Android solution, like proposed here via "vdc cryptfs changepw newpass" seem to work only on rooted devices.
If you update to android 4.3(official), you can get the lockscreen widgets for it, which should do the job. Or you could get one of the many lockscreen replacement apps from the playstore. I myself use cover: https://play.google.com/store/apps/details?id=com.coverscreen.cover
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