vehicleState.isFlying becomes true automatically when I set VehicleApi.getApi(this.drone).arm(true);

[seantobe]

HI all:

I follow the following link's sample code

http://android.dronekit.io/first_app.html

and when I set API VehicleApi.getApi(this.drone).arm(true);
vehicleState.isFlying() automatically becomes true.

Can anybody tell me what this problem is?

Also, I can sucessfully send mavlink msg to px4 board, but there are only two messages in the dronekit-android library(1: msg_message_interval, and 2: msg_heartbeat).

What I need is:

1. take off, land
2. send all other mavlink messages(id: 0~255)

Thank you for replying.

BR
SeanH