Hey Jake, let's tackle your problem step by step. First off, let's address whether Mission Control is the right fit for your simple use case, then walk through a more straightforward solution using DJI's core Swift APIs.

Short answer: No, not really. Mission Control is built for complex, multi-step missions like waypoint navigation, orbit flights, or custom automated routes. For your specific need—just flying to a specified height and recording a video of the area below—it’s overkill. Using the basic flight control and camera APIs directly will be simpler, less error-prone, and easier to debug.

Here’s a step-by-step approach to achieve your goal without Mission Control:

1. Validate Connection & Get Core Components #

First, make sure your app has a connected drone, then grab references to the flight controller and camera:

import DJISDK

// Check if a product is connected and get flight controller/camera
guard let product = DJISDKManager.product(),
      let flightController = product.flightController,
      let camera = product.camera else {
    print("Drone not connected or core components unavailable")
    return
}

2. Fly to the Target Height #

Use the flight controller’s built-in method to take off directly to your desired height (units are meters):

let targetHeight: Float = 12.0 // Adjust this to your preferred height

flightController.takeoffToHeight(targetHeight, withCompletion: { error in
    if let error = error {
        print("Failed to reach target height: \(error.localizedDescription)")
        return
    }
    print("Successfully reached \(targetHeight) meters! Starting video recording...")
    // Trigger recording once we're at the right height
    self.startVideoRecording(with: camera)
})

3. Start Video Recording #

Once the drone is at the target height, initiate recording via the camera API:

func startVideoRecording(with camera: DJICamera) {
    camera.startRecordingVideo(completion: { error in
        if let error = error {
            print("Failed to start recording: \(error.localizedDescription)")
        } else {
            print("Video recording started successfully")
            // Add logic here to stop recording after a set time, or via user input
            // Example: Stop recording after 10 seconds
            DispatchQueue.main.asyncAfter(deadline: .now() + 10) {
                camera.stopRecordingVideo(completion: { stopError in
                    if let stopError = stopError {
                        print("Failed to stop recording: \(stopError.localizedDescription)")
                    } else {
                        print("Recording stopped successfully")
                    }
                })
            }
        }
    })
}

If you still want to use Mission Control for learning purposes, you can create a single-waypoint mission where the only waypoint is at your target height. Here’s a quick snippet:

// Create a waypoint at the drone's current latitude/longitude, target height
guard let currentLocation = flightController.location else { return }
let waypoint = DJIWaypoint(coordinate: currentLocation.coordinate, altitude: targetHeight)
waypoint.actionRepeatTimes = 1
waypoint.heading = 0 // Keep drone facing forward (adjust as needed)

let mission = DJIWaypointMission(waypoints: [waypoint])
mission.maxFlightSpeed = 5.0
mission.autoFlightSpeed = 3.0

// Start the mission, and trigger recording when it begins
flightController.startMission(mission, withCompletion: { error in
    if let error = error {
        print("Mission failed to start: \(error.localizedDescription)")
    } else {
        self.startVideoRecording(with: camera)
    }
})

Again, this is unnecessary for your simple use case, but it’s an option if you want to experiment with Mission Control.

• Permissions: Ensure your app has the necessary iOS permissions (location, camera, and background modes for drone control) added to your Info.plist.
• Flight Safety: Always check that the drone has strong GPS signal, sufficient battery, and is not in a restricted flight zone before initiating any commands.
• Recording Management: Use the camera’s mediaManager to access and download recorded videos once the mission is complete.

内容的提问来源于stack exchange，提问作者Jake