Best Practices for Developing Applications

Observe best practices to help improve the success of software development for Sybase Unwired Platform.

• Set up your development environment and develop your application using the procedures in the Developer Guide for iOS.
• Avoid making calls on the "main" thread on the device as this provides a poor response. Instead, use loading screens and activity spinners while doing the work in a background thread or operation queue. Do this while submitting and saving operations, and doing imports that update the tables displayed.
• Use an operation queue if you are trying to process imports and show them as they come in a UITableViewController. The operation callback will overwhelm the UI if you do one at a time. Instead, use an operation queue and process in groups.
• When testing for memory leaks, ignore the one-time startup leaks reported for the Messaging Server service.

• Constructing Synchronization Parameters
  When constructing synchronization parameters to filter rows to be download to a device, if the SQL statement involves two mobile business objects, you must use an "in" clause rather than a "join" clause. Otherwise, when there is a joined SQL statement, all rows of the subsequent mobile business object are filtered out.