Fragments

TrainingKit Android provides two fragment entry points.

GoFragment

• Use for classic workouts.
• Constructor pattern:

GoFragment.newInstance(workoutContent, workoutConfig, jwtToken)

WorkoutVideoFragment

• Use for streaming video workouts.
• Constructor pattern:

WorkoutVideoFragment.newInstance(workoutContent, workoutConfig, jwtToken)

Shared inputs

• workoutContent: GraphQL session payload.
• workoutConfig: JSON customization and behavior options.
• jwtToken: A signed JWT issued by your backend.

Completion callbacks

Both fragment types emit the same workout lifecycle, but through their respective host interfaces.

Lifecycle signal	GoFragment classic callback	WorkoutVideoFragment video callback	Purpose
Save	saveWorkout(state: SaveWorkoutState)	saveWorkout(saveState: SaveWorkoutState): Promise<*, *, *>	Persist completed workout state.
Quit / close	closeGoMode(state: SaveWorkoutState?)	Host close handling / goToNextScreen() after the video flow	Restore host navigation when the workout is left or finished.
Event	trackEvent(name: Tracking.Event, properties: Map<Tracking.Property, String>?)	trackEvent(data: TrackingData)	Forward TrainingKit analytics metadata.

Register or implement this handling before the fragment is displayed so completion and tracking signals are not lost.