There isn't a way to override the lock screen but there is a way to co-operate with it. Starting from Android 4.2, you can write a lock screen widget to display custom information on the lock screen.
override pattern lock to display toast
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29-09-2022 - |
Question
Is is possible that a toast will get displayed of my application overriding every kind of lock in the device that exist when user press the power button twice in unrooted device. I am just few months old to android.
Solution
OTHER TIPS
Update:
Only Android versions lower than 5.0 support lock-screen widgets. For Android 5.0 and higher, only home_screen is valid.
Source: API Docs
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