Knock implements an interesting feature for iOS 7

  Knock is a tweak available during this day in Cydia, and with its help we can implement a new, quite interesting functionality for our iDevices. According to the description made by the developer, Knock works using Activator and offers the possibility to set the fulfillment of two actions in iOS 7 by the simple collision of certain parts of the iDevices.

Requires iOS 7. Not compatible with iPad. Knock adds two events to Activator for you to assign to actions – a hard tap or knock on…
1) The left or right side of your iPhone;
2) The front of the back of your iPhone.

  Functionality Knock is obtained by analyzing the data provided by the accelerometer, collisions can be made on the left or right side of the iPhone, either on the screen or on the case. After performing these collisions iOS 7 it will perform every action set by us for every part of the device, everything working only when the terminal is turned on.

  Knock is available at the price of $1 in the repo BigBoss al Cydia.