Android Question dji library

[shb777]

Now that 8.0 has been released, is there any chance a temperary DJI library can be uploaded, that allows us to end the height and distance restrictions of the current library.
Most of the old library would probably still work.

 

[Erel]

https://www.b4x.com/android/forum/threads/dji-drones.75244/page-5#post-572928

 

[shb777]

I went to that link, but I can't find where to download the new library.


"I was wrong. V4.41 which is available in the first post is the updated library and should work properly."

can you put a link in this post to the new library V4.41

ok i found it here www.b4x.com/android/files/dji.zip

it's version 2.50 if anyone cares. I'm charging my batteries now, and I'll let you know in a few hours if this works.

 

[shb777]

I flew with the new library, but I still got the Altitude and Distance limits. So maybe I have to change some code in my app?

 

[shb777]

added this line

sdk.Initialize("sdk")

also this

#BridgeLogger: true
#MultiDex: true
#AdditionalJar: dji-sdk-provided-4.4.1, ReferenceOnly

but I just tested it and I'm still getting the distance and altitude limits. Also, I kept getting check app on remote control. but was connected.

 

[shb777]

when I put this in the manifest the app crashes.

SetApplicationAttribute(android:name, "anywheresoftware.b4a.objects.BaseApplication")

 

[DonManfred]

You can try to add this lines to the DjiFlightcontrollerWrapper.java

/**
/* Allowed are values from 20 to 500 based on the Documentation
/**
    public Object SetMaxFlightHeight(int height) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightHeight(height, cc);
        return cc;
    }
    public Object SetMaxFlightRadius(int radius) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightRadius(radius, cc);;
        return cc;
    }
    public Object SetMaxFlightRadiusLimitationEnabled(boolean enabled) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightRadiusLimitationEnabled(enabled, cc);
        return cc;
    }
    public Object GetMaxFlightHeight() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightHeight(cc);;
        return cc;
    }
    public Object GetMaxFlightRadius() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightRadius(cc);
        return cc;
    }
    public Object GetMaxFlightRadiusLimitationEnabled() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightRadiusLimitationEnabled(cc);
        return cc;
    }

And then compile the library new...

Alternatively you can probably use JavaObject to call this Methods from the Flightcontroller...

 

[shb777]

when I compile the drone program I'm getting an error"


Error compiling program.
Error description: Unknown member: activationstate
Error occurred on line: 122
sb.Append($"Simulator: ${controller.SimulatorStarted}
FlightMode: ${St.FlightMode}
Altitude: $1.0{St.AircraftLocation.Altitude} m
Location: $1.3{St.AircraftLocation.Latitude} / $1.3{St.AircraftLocation.Longitude}
speed: $1.0{speed} m/s
VelocityZ: $1.1{-St.VelocityZ} m/s
Activation: ${sdk.ActivationState}
Binding: ${sdk.AircraftBindingState}
"$)
Word: activationstate

 

[shb777]

You can try to add this lines to the DjiFlightcontrollerWrapper.java

/**
/* Allowed are values from 20 to 500 based on the Documentation
/**
    public Object SetMaxFlightHeight(int height) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightHeight(height, cc);
        return cc;
    }
    public Object SetMaxFlightRadius(int radius) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightRadius(radius, cc);;
        return cc;
    }
    public Object SetMaxFlightRadiusLimitationEnabled(boolean enabled) {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().setMaxFlightRadiusLimitationEnabled(enabled, cc);
        return cc;
    }
    public Object GetMaxFlightHeight() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightHeight(cc);;
        return cc;
    }
    public Object GetMaxFlightRadius() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightRadius(cc);
        return cc;
    }
    public Object GetMaxFlightRadiusLimitationEnabled() {
        B4ACompletionCallback cc = new B4ACompletionCallback();
        getObject().getMaxFlightRadiusLimitationEnabled(cc);
        return cc;
    }

And then compile the library new...

Alternatively you can probably use JavaObject to call this Methods from the Flightcontroller...

but DjiFlightcontrollerWrapper.java is never used in the drone program

 

[DonManfred]

but DjiFlightcontrollerWrapper.java is never used in the drone program

Private controller As DJIFlightController

False. It is used as it is one of the Basecomponents needed to fly the Drone.....

From DjiFlightControllerWrapper.java

@ShortName("DJIFlightController")

Note that it is the FlightController where all these Informations are coming from:

 

[Erel]

No need to add any other methods to disable the flight limits.

Start with a new project based on the example. If it crashes then please post the logs.

 

[shb777]

No need to add any other methods to disable the flight limits.

Start with a new project based on the example. If it crashes then please post the logs.

it's not compiling for me. see the previous post

 

[shb777]

Private controller As DJIFlightController

False. It is used as it is one of the Basecomponents needed to fly the Drone.....

From DjiFlightControllerWrapper.java

@ShortName("DJIFlightController")

Note that it is the FlightController where all these Informations are coming from:

After it's compiled, but I don't even know how to compile it.

 

[Erel]

You also need to download DJI_lib: https://www.b4x.com/android/forum/threads/dji-drones.75244/

The library version is 4.41.

 

[shb777]

OK that was it. I thought I had the new lib but I didn't. now I have 4.4.1

Also I noticed that there was code in drone first that I didn't put in my app. So my app would compile but wouldn't get rid of the limits.

 

[shb777]

I'm not connecting the drone first app to the mavic. no video or telemetry. after I turn the mavic off, I get a message SDK_ActivationStateChanged not found.

 

[DonManfred]

I get a message SDK_ActivationStateChanged not found.

Have you added the missing event sub then?

 

[shb777]

Have you added the missing event sub then?

No. I did a search, and it's not in the drone first program. I can add it, but what code should go in it, and why wouldn't it be in drone first?

Also these are not defined:

Dim DJICameraCaptureWidget1 As DJICameraCaptureWidget
Dim DJIRemoteControlSignalWidget1 As DJIRemoteControlSignalWidget
Dim DJIDistanceRCWidget1 As DJIDistanceRCWidget
Dim DJIRemainingFlightTimeWidget1 As DJIRemainingFlightTimeWidget

I have the djiui libraries in my extra libraries, but they're not showing up in my libraries tab, so I can't add them to my project.

 

[Erel]

Start with DroneMission example.

 

[shb777]

Start with DroneMission example.

I ran the new DroneMission example, but still no video or telemetry.

when calling SDK_RegisteredResult I get this error message.

"the metadata recieved from the server is invalid, please reconnect to the server and try.