MobileEventLog

A cross plattform project for android and ios to log events offline everywhere and sync them to sensor. Developed with flutter.

Minimum Concept

• Config page: Select the collection and get corresponding devices, get all event types. Store all this to a local configuraion.json file.

• Log page: Allow selection of a device and adding a new event with all details. Add button adds the event to the staged events. Fields are not cleared but kept as they are.

• Staged Event: Show all entered and not yet uploaded events. Allow modification of all fields here.

• Synced Event: Show all uploaded events. Optionally filter by device.

Questions:

• How to store not uploaded events locally? Dumping jsons to a file?, ObjectBox, SharedPreferences,

Local Base Data Concept

• The configuration.dart age widget is used to get the online available information for available devices and event creation.
• This includes: All collections, All devices part of a selected collection, Event operation types
• This "base data" is required to provide the dropdown menu options on the addevent.dart page.
• This "base data" needs to be stored persistently, so that it is available also offline!

Local Data Event Storage

• Events added on the addevent.dart page have to be stored locally persistently. At least until the are exported to sensor.awi.de

Configuration Page

• Dropdown "Collection" to select a collection
• Textfield to show current locally selected and offline available collection
• Button "get Collection devices from Sensor"
• Button "store Collection devices locally"

GNSS

• Checkbox on add event page which activates GNSS locationing. A field shall signal "no fix" or presision in meter. The fields lat, long, elevation are updated automatically if checkbox is checked.

Input validation

a-z , A-Z , _ , 0-9 , ,(Comma) , ( , ) , + , - , . , :

-90 => Latitude <= +90 -180 => Latitude <= +180 Elevation: any numer