DJI Mobile SDK Documentation

Mobile SDK

      Manager Classes
      DJISDKManager
      KeyManager
      FlyZoneManager
      AppActivationManager
      UserAccountManager
      DataProtectionManager
      LDMManager
      UTMISSManager
      FlightHubManager
      LiveStreamManager
      IUASRemoteIDManager
      UpgradeManager
      Base Classes
      BaseProduct
      BaseComponent
      Product Classes
      Aircraft
      HandHeld
      Component Classes
      FlightController
      Battery
      Camera
      Gimbal
      AirLink
      RemoteController
      HandheldController
      MobileRemoteController
      Payload
      Pipeline
      AccessoryAggregation
      BaseStation
      Lidar
      Mission Classes
      MissionControl
      MissionAction
      TimelineMission
      Trigger
      WaypointMissionOperator
      WaypointV2MissionOperator
      FollowMeMissionOperator
      PanoramaMissionOperator
      HotpointMissionOperator
      IntelligentHotpointMissionOperator
      TapFlyMissionOperator
      ActiveTrackOperator
      Misc Classes
      CommonCallbacks
      WarningStatusItem
      VideoSizeCalculatorUtil
      LocationUtil
      DJIParamCapability
      DJIError
      DJIDiagnostics
      DJICodecManager
      Stick

      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
      getTriggers
      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
      isPausable
      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
      checkValidity
      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
      willRun
      method willRun
      void willRun()
      Package:dji.sdk.mission.timeline
      Description:

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

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

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

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

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

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

      Stops execution of the element.

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

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

      method setDelayTime
      void setDelayTime(long delayTime)
      Package:dji.sdk.mission.timeline
      Description:

      Sets the time you want to delay before element execution which is used for asynchronous processing scenarios. For example, if you want to execute GimbalAttitudeAction after ShootPhotoAction, you should set delay time in GimbalAttitudeAction. Because it takes 1 to 2 seconds to take a photo, the gimbal's commands will not be responded during this period, so we need to delay 2 seconds before turning the gimbal to ensure that the gimbal movement is executed correctly.

      Input Parameters:
      long delayTimeThe time you want to delay before element execution, unit:second.
      method getDelayTime
      long getDelayTime()
      Package:dji.sdk.mission.timeline
      Description:

      Gets the time you want to delay before element execution.

      Return:
      longThe time you set to delay before element execution.