DJI Mobile SDK Documentation

      class TimelineElement

      class TimelineElement implements Triggerable
      Package:dji.sdk.mission.timeline
      Description:

      Required behavior of elements that run in a Timeline.

      In addition to implementing this behavior, a Timeline element must communicate with Mission Control to let it know its state. Mission Control will wait for updates from the Timeline element before it itself progresses. Refer to TimelineElementFeedback for the methods Mission Control exposes for the Timeline element to use to communicate.

      Class Members:
      Triggers
      method
      method getTriggers
      List<Trigger> getTriggers()
      Package:dji.sdk.mission.timeline
      Description:

      If implemented, Mission Control loads and activates the triggers for the duration that the Timeline element is executing.

      Return:
      List<Trigger>A List of Trigger object.
      method setTriggers
      void setTriggers(List<Trigger> triggers)
      Package:dji.sdk.mission.timeline
      Description:

      Set the triggers array list to the timeline.

      Input Parameters:
      List<Trigger> triggersA list of Trigger objects.
      Element Can be Paused
      method
      method isPausable
      boolean isPausable()
      Package:dji.sdk.mission.timeline
      Description:

      true if the element can be paused. If false, then when the Timeline is asked to pause when this element is running, nothing will happen.

      Return:
      booleantrue if the element can be paused.
      Validation
      method
      method checkValidity
      DJIError checkValidity()
      Package:dji.sdk.mission.timeline
      Description:

      Returns an error if there is a configuration or parameter error in the element. Returns null if there is no issue.

      Return:
      DJIErrorA DJIError object.
      Control
      method
      method willRun
      void willRun()
      Package:dji.sdk.mission.timeline
      Description:

      If Implemented, this is called by Mission Control right before running the element.

      method
      method run
      void run()
      Package:dji.sdk.mission.timeline
      Description:

      Starts execution of Timeline element. Missions adopting this behavior are being run with their respective operators.

      method
      method pause
      void pause()
      Package:dji.sdk.mission.timeline
      Description:

      Pauses the execution of the element. Must be implemented if isPausable returns true.

      method
      method resume
      void resume()
      Package:dji.sdk.mission.timeline
      Description:

      Resumes the execution of the element. Must be implemented if isPausable returns true.

      method
      method stop
      void stop()
      Package:dji.sdk.mission.timeline
      Description:

      Stops execution of the element.

      method
      method didRun
      void didRun()
      Package:dji.sdk.mission.timeline
      Description:

      Called after element execution, regardless of whether or not it was successful.