Problem using IKeyManager in JAVA

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joao.morais2000

• May 16, 2023 16:07

Hello,

I am developing a mobile app in JAVA with the msdk v5. I want to get information about a lot of sensors of the drone and show them to the user: battery percentage, altitude, speeds...

 

I have done it with the distances of the obstacles, and it was easy. This is what I have done in order do get those sensors: 

public class SensorsViewModel extends ViewModel implements ObstacleDataListener  {

(... code here ...)

@Override
public void onUpdate(ObstacleData obstacleData) {
    objectsAboveLiveData.postValue(obstacleData.getUpwardObstacleDistance());
    objectsBelowLiveData.postValue(obstacleData.getDownwardObstacleDistance());
    objectsInfrontLiveData.postValue(obstacleData.getHorizontalObstacleDistance().get(0));
    objectsBehindLiveData.postValue(obstacleData.getHorizontalObstacleDistance().get(1));
}

(... code here ...)

I can't do it with the IKeyManager. How do I do the same in order to get information about Battery, FlightController....?

I have also explored the sample code, but I can't manage to convert the examples from kotlin to java.

 

Thank you

0

• 

  DJI Developer Support

  • May 17, 2023 03:15

  If you want to obtain information such as battery percentage, altitude, speed, etc., you can only use KeyManager to monitor the corresponding key to obtain the information you want. There is no way to obtain it without using this

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  joao.morais2000

  • May 17, 2023 11:55

  Thank you, I managed to do it, it was something like this:

  KeyManager.getInstance().listen(KeyTools.createKey(BatteryKey.KeyChargeRemainingInPercent), this, (oldValue, newValue) -> { 
   batteryPercentageLiveData.postValue(newValue); 
  }); 
  
  KeyManager.getInstance().listen(KeyTools.createKey(BatteryKey.KeyBatteryTemperature), this, (oldValue, newValue) -> { 
   batteryTemperatureLiveData.postValue(newValue); 
  });

  One more question. Can't I use the DJI Mini 3 Pro on the simulator?? I know that I can simulate values in the sample code, but I really want to fly it in the simulator.

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  DJI Developer Support

  • May 17, 2023 12:00

  你可以尝试一下这个https://www.dji.com/cn/downloads/softwares/dji-assistant-2-consumer-drones-series

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  joao.morais2000

  • May 18, 2023 15:49

  That one detects the drone, but it doesn't have the simulator tab.

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  DJI Developer Support

  • May 19, 2023 03:50

  It is possible to open the simulator in MSDK, but if you want to use dji-assistant-2 to open the simulator, you can contact **support@dji.com** to give feedback on your needs

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