Screens and all other content are updated on the device at pre-defined synchronization intervals that occur in the background when the app is running.
These intervals are:
- At user login (or auto-login if using the 'Remember Logins' option).
- On app's return to foreground from being in the background on the device.
- When the user hits the Upload button in a Form.
- When the user manually hits the Check for Updates button found on the Settings screen of the app. The Updates button is purely there for manual checking, it is not required for synchronization to occur.
When any synchronization occurs, the app kicks off uploads/downloads of any pending media files. The app will display synchronization messages when a synchronization is in progress, completed or failed. Sync failures usually occur because there is no network connection. The app will keep retrying at the intervals above.
Media file uploads & downloads (i.e. photos, audio, video) are run separately in the background, so as not to block data sync, and are not reported as part of the sync messages. This is because such files are usually larger and take longer to upload. App users can track the progress of media file uploads via the 'Pending Files' count in the Settings screen of the app. If there are no files pending, there will be no messages in the Settings screen.
Why are users seeing an older version of their Screens/ Data Sources?
This is usually because the user has been quick to launch a new entry while a sync is still in progress. In these cases its quite possible that the entry they created is against the old version as the sync has not had enough time to pull down the new version yet. If users are waiting on a new Screen to work on, they should wait for the 'Synchronization completed' message which confirms the sync has occurred.