Android DJI移动SDK 3.0

通过DJIMissionManager.getInstance（）或djiAircraftInstance.getMissionManager（）获取任务管理器时，任务管理器实例从未连接，即missionManagerInstance.isConnected（）始终返回false，如果不进行isConnected检查，则会导致崩溃。我是否错过了设置或重新获得任务经理的步骤

一分钟前，我在他们的论坛上问了同样的问题

任何帮助都将不胜感激。我已经看过他们的例子一千次了，但似乎所有的例子都使用了旧版本的sdk

编辑：您可以了解更多信息，但我会添加更多信息

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Mission manager实例不为null，因为调用isConnected（）返回false，无人机也已连接。

我刚刚测试了isMissionReadyToExecute和MissionManager.isConnected，我发现无论何时调用它们，它们都会返回true。所以我认为它应该是SDK内部的缺陷。 我找到了解决这个问题的方法

初始化任务

    // Step 1: create mission
    DJIWaypointMission waypointMission = new DJIWaypointMission();
    waypointMission.maxFlightSpeed = 14;
    waypointMission.autoFlightSpeed = 4;
    List<DJIWaypoint> waypointsList = new LinkedList<>();

    // Step 2: create waypoints and prepare coordinates
    DJIWaypoint northPoint = new DJIWaypoint(mHomeLatitude + 10 * Utils.ONE_METER_OFFSET, mHomeLongitude, 10f);
    DJIWaypoint eastPoint = new DJIWaypoint(mHomeLatitude, mHomeLongitude + 10 * Utils.calcLongitudeOffset(mHomeLatitude), 20f);
    DJIWaypoint southPoint = new DJIWaypoint(mHomeLatitude - 10 * Utils.ONE_METER_OFFSET, mHomeLongitude, 30f);
    DJIWaypoint westPoint = new DJIWaypoint(mHomeLatitude, mHomeLongitude - 10 * Utils.calcLongitudeOffset(mHomeLatitude), 40f);

    //Step 3: add actions
    northPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.GimbalPitch, -60));
    northPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.StartTakePhoto, 0));
    eastPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.StartTakePhoto, 0));
    southPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.RotateAircraft, 60));
    southPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.StartRecord, 0));
    westPoint.addAction(new DJIWaypoint.DJIWaypointAction(DJIWaypoint.DJIWaypointActionType.StopRecord, 0));

    //Step 4: add waypoints into the mission
    waypointsList.add(northPoint);
    waypointsList.add(eastPoint);
    waypointsList.add(southPoint);
    waypointsList.add(westPoint);
    waypointMission.addWaypoints(waypointsList);

    mDJIMission = waypointMission;

 mMissionManager.prepareMission(mDJIMission, new DJIMission.DJIMissionProgressHandler() {

        @Override
        public void onProgress(DJIMission.DJIProgressType type, float progress) {
            setProgressBar((int)(progress * 100f));
        }

    }, new DJICompletionCallback() {

        @Override
        public void onResult(DJIError error) {
            if (error == null) {
                Utils.setResultToToast(mContext, "Success!");
            } else {
                Utils.setResultToToast(mContext, "Prepare: " + error.getDescription());
            }
        }
    });

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这是sdk中的一个bug。DJI回复我说，他们在代码中发现了一个bug，正在新版本中修复。与此同时，我的解决办法只是暂时取消支票，就像你做的那样