Update the enum.
Update some logic to handle the buttons' status in Record Detail view controller.
Link the Detail view controller to table view controller.
Add logic to control the segment controls in Record Detail view controller 
Add sensor data handler protocol to store the data in record detail view controller
Logic for add new record button.
Skip the first 10 seconds data.
Add new init method to handle the init with existing data.
Update the notice message when view loading.
Link the Record Detail view controller to motion service.
Add logic to update the record time.
Re-design the record detail view controller's property.
Link the new record detail view controller to motion service.
Get the real record files in the table view controller.
Change the design to not save the temp records.
Fix some bugs.
Format the code, remove some unneeded classes.
Add logic to get the JSON data from objects.
Add logic to get the JSON data for the Models.
Add logic to test the connection.