Quick lock your phone by press this application... Start to save you handset hardware key's life... Use me to lock your phone now!!
PS: This app need device manager permission for use. The first time start the app, device manager will ask for permission. And you also need to revoke the permission before uninstall, if you want uninstall it.
Uninstall: Go to SETTINGS->Location and Security-> Device Administrator and deselect the "quicklock" to uninstall.
PS: Fell free to tell me the bug or your opinion, thanks for use!