Lock your application from unauthorized access!
AppLocker Simple is a free, Open Source Application Locker. Which is fast and requires very little CPU resources. You can customize it to block any number of Apps from unauthorized access.
The user interface of this is implemented in the unreleased version 0.4 of Android-Binding.
Android-Binding is a open source MVVM framework (LGPL) for Java-Android. User interface is gracefully separated from back-end codes, which declares the look, data-binding, interaction in the XML layout file.