ForeFlight offers as of v12.0 a feature “Import G1000 Track Logs to ForeFlight” which involves removing a G1000 SD card and copying the data to ForeFlight – do not do that; removing any avionics SD cards may be done by authorized personnel only.
There is no need to do that anyway – just connect your iPad via Bluetooth (not WiFi!) to the plane’s ADS-B In, and ForeFlight will be able to record your flight track log while providing both traffic and WX information.