Getting Started with iOS network programming: icloud key value data storage programming instance

icloud key value data storage design

icloud key value data storage programming instance, the screen has two switch controls, the left is the device 1 click the "Set icloud Data" button to save the control state to the icloud server. The image on the right is the device 2 screen, and after a few seconds the device 2 receives a change notification.

Configure Xcode Engineering

Using Xcode to create an iOS project, after the project is created, select Tagets→mynotes→summary→entitlements, where we can configure the licensing information.

Then we also need to apply the set code signature identification, the code signature identification needs to select this configuration profile. Select Tagets→mynotes→code Signing Identity

After the setup is complete, you can begin coding work.