dronekit/dronekit-android

Android DroneAPI implementation

filip-aerologin

@filip-aerologin

Hi. Does anybody know why the dronekit javadoc is down? Do you have any info about if or when it will be restored?

Thomas Van Hees

@Thomasvanhees96_twitter

I dont have any problems, can you show your error?

Abhijit Gite

@AbhijitGite28

Yes JAVA doc is not available http://android.dronekit.io/javadoc/

Alexander Maryanovsky

@m-sasha

Is dronekit-android a live project? I see it hasn't been touched in a while, and the website is down (DNS registration)...

Thomas Van Hees

@Thomasvanhees96_twitter

The same here, the website is down, someone can solve this?

AsadARM

@AsadARM

hy i am new in dronekit i want to build app tower and i have got this error .

The apk for your currently selected variant (tower-beta-release.400010.apk) is not signed. Please specify a signing configuration for this variant (beta-release)

denisbujoreanu

@denisbujoreanu

Try building a debug version.You should be able to run it on your smartphone. For a release version which you will eventually publish in the PlayStore you obviously need to sign your app using your personal certificate. Otherwise all sorts of nasty stuff can end up on people's phones.

AsadARM

@AsadARM

thanks my problem solve .

in my app google earth not run .i try to get my google map api but can't run please help me.

maxwelllwang

@maxwelllwang

Hello! I am currently trying to rebuild dronekit android and tower. I've run into the problem that under services.android.lib many of the files were written with the intention of having them server side and therefore using aidl files. Now I plan to have them running on board the android app. How do i change the services library for my purposes?

Ing. Emanuele Tonucci

@etonucci

Hello to everybody!
Is it possible to know how to import all the classes of drone-kit android inside a project instead of used the istruction: "implementation 'com.o3dr.android:dronekit-android:3.0.2'"
Or there is some kind of guide to build/make the drone-kit system with android studio 3.5?
I would like to try to solve the problem of the Android 8's version! otherwise I can't use my APP on the new Android devices!
Thanks for any suggestions.

OlavAa

@OlavAa

I followed these instructions, and after some struggle (don't remember the details) I got it to work: https://github.com/DroidPlanner/Tower/wiki/Work-with-DroneKit-Android

Ing. Emanuele Tonucci

@etonucci

@OlavAa Thank you very much! I'll try immediately!

Ing. Emanuele Tonucci

@etonucci

Dear @OlavAa Finally I compile with succes Drone-Kit project with Android Studio 3.5! When I used the file, in my case, with implementation (name:'dronekit-android.3.1.0-beta',ext:'aar') unluckly I received this error:

E/AndroidRuntime: FATAL EXCEPTION: main
Process: com.ttp_technology.ttp_bb_v2, PID: 20452
java.lang.NoClassDefFoundError: Failed resolution of: Ltimber/log/Timber;
at org.droidplanner.services.android.impl.api.DroidPlannerService.onCreate(DroidPlannerService.java:207)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3558)
at android.app.ActivityThread.access$1300(ActivityThread.java:200)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1672)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:198)
at android.app.ActivityThread.main(ActivityThread.java:6732)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)
Caused by: java.lang.ClassNotFoundException: Didn't find class "timber.log.Timber" on path: DexPathList[[zip file "/system/framework/org.apache.http.legacy.boot.jar", zip file "/data/app/com.ttp_technology.ttp_bb_v2-ZpTMEGXoT7GCB4p376y48Q==/base.apk"],nativeLibraryDirectories=[/data/app/com.ttp_technology.ttp_bb_v2-ZpTMEGXoT7GCB4p376y48Q==/lib/arm64, /system/lib64]]
at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:134)
at java.lang.ClassLoader.loadClass(ClassLoader.java:379)
at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
at org.droidplanner.services.android.impl.api.DroidPlannerService.onCreate(DroidPlannerService.java:207)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:3558)
at android.app.ActivityThread.access$1300(ActivityThread.java:200)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1672)
at android.os.Handler.dispatchMessage(Handler.java:106)
at android.os.Looper.loop(Looper.java:198)
at android.app.ActivityThread.main(ActivityThread.java:6732)
at java.lang.reflect.Method.invoke(Native Method)
at com.android.internal.os.RuntimeInit$MethodAndArgsCaller.run(RuntimeInit.java:493)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:858)

What do you think?

OlavAa

@OlavAa

It a lot of fun, right? I remember that I struggled as well, but got it right in the end. Some time since I did this. On the top of my head I think I got the 3.0.4 generated. No access to my dev environment just now, but I'll see what I can find out. The error is kinda specific on first look (class not found on path), but my experience (or rather lack of it) is that you usually need to dig a little deeper. I think I remember having to "rebuild project" before I succeed... Will try to help you later!

Sudarshan-Impace

@Sudarshan-Impace

Can any one share me latest dronekit GCS android app source code ? I have developed android GCS but i want to implement video streaming functionality in my app but i dont know how to show video in app.

I have droneKit tower app code but it can't run on android Studio.

OlavAa

@OlavAa

@etonucci I was actually walking to my code just now to remember the steps I took. Happy you succeeded. I have tried to test that this is actually working. Altered the name of a mode in "public enum VehicleMode implements DroneAttribute" to play around - changed the label for "ROVER_AUTO" from "Auto" to "Do mission". Then during testing, the Tower app dislays "Do mission" in the telemetry bar and the audible message when entering Auto mode says "Mode Do mission". So it is working, which is nice! The challenge I see now is that the Dronekit is quite old. I don't now about the other models, but for ARDUROVER there has been a lot of development in the firmware. So I guess that I have quite a lot to do to lift the now included Dronekit up to a level of Ardupilot version 4.0.

@Sudarshan-Impace You can get it on Gitbub here: https://github.com/dronekit/dronekit-android

I did not experience problems trying to build it, just struggled with including it into the Tower app. Pretty sure I did not upgrade the Gradle when I opened it in Android Studio for the first time, though. Perhaps give that a try (from scratch)?

Ing. Emanuele Tonucci

@etonucci

@OlavAa

I builded correctly my APP!!! The problem was that I've to include (implementation) all the outer classes of the DroneKit inside my APP gradel!

implementation 'com.jakewharton.timber:timber:4.7.1'
implementation 'com.github.zafarkhaja:java-semver:0.9.0'
implementation 'com.jcraft:jsch:0.1.51'
implementation 'com.googlecode.mp4parser:isoparser:1.1.7'
implementation 'org.droidplanner.android:usb-serial-android:0.1.0'

I don't no why? These classes are included in the ClientLib (DroneKit) Gradel!
I would have imagined that, since they were already imported into DroneKit (ClientLib gradel), in my application I should not have imported them.

Luckely, now my APP works great!

If somebody want to try to develop an APP for Android Oreo+ or more high, has to modify something inside DroneKit:

First, in dronekit project gradel have to change the ext part with this code:

ext {
play_services_version = '8.4.0'

    android_build_sdk_version = 28
    android_build_tools_version = '23.0.2'
    android_build_target_sdk_version = 26
    android_build_min_sdk_version = 22
}

Second, inside AndroidStudioProjects\dronekit-android-v3.0.2\ClientLib\src\main\java\org\droidplanner\services\android\impl\utils\connection
Change the file WifiConnectionHandler.java (line 103) to:
case CONNECTED:
//final WifiInfo wifiInfo = intent.getParcelableExtra(WifiManager.EXTRA_WIFI_INFO);
//final String wifiSSID = wifiInfo.getSSID();
final String wifiSSID = wifiMgr.getConnectionInfo().getSSID();
Timber.i("Connected to " + wifiSSID);

COMPILE (BUILD) DroneKit!

Third, change the project gradel like this:

allprojects {
repositories {
google()
jcenter()

    flatDir{
        dirs 'libs','../../dronekit-android-v3.0.2/ClientLib/build/outputs/aar'
    }
}

}

Fourth, change the compile method in your APP gradel like this (obviously you have to use applicationId, versionCode and versioneNameSuffix of your APP):

compileSdkVersion 29
defaultConfig {
applicationId "com.ttp_technology.ttp_bb_v2"
minSdkVersion 22
targetSdkVersion 26
versionCode 5
versionName "4.1"
testInstrumentationRunner "an29droidx.test.runner.AndroidJUnitRunner"
versionNameSuffix = 'TTP-V4.1'

}
buildTypes {
}
buildToolsVersion = '28.0.3'

Fifth, in your App gradel chenge the implemantation of drone-kit library to:

//implementation 'com.o3dr.android:dronekit-android:3.0.2'
implementation (name:'dronekit-android.3.0.2',ext:'aar')

And now you can cross fingers and built your APP :)

Thank you all for your support.

OlavAa

@OlavAa

@etonucci Thanks for this information, really appreciate it since you have gone additional steps that I have not yet looked into! One question: The connection changes, do they solve the faulty UDP connection alternative from Tower (bluetooth, USB and TCP all work, while UDP fails for me)?

Ing. Emanuele Tonucci

@etonucci

@OlavAa I tested my APP to connect to SITL with UDP and it works, and with USB with 3DR radio telemetry and it works. Hope it works also with TCP and Bluetooth. I never used these type of connections. I'll try next days!

OlavAa

@OlavAa

I use USB and Bluetooth from phone/tablets. No problems. Developing with Android Studio, emulator and SITL I use TCP (since UDP does not work at all). I will implement the changes you suggested and hopefully enjoy UDP as well 🙂

Ing. Emanuele Tonucci

@etonucci

😄💪👍

mrchentop

@mrchentop

asyncScheduler null

Prathyush Reddy

@aprathyush_twitter

Hi all, can someone please guide me on how to get geofence breach (update fence points, draw polygon on gcs and set fence_enable) working from dronekit sitl script.

Thanks in advance

Another query in on creating attribute for intercepting the FENCE_STATUS. I had issues when I tried writing MyVehicle Class same as in the create_attribute example as it is not present by default in vehicle class.

Donoorkans

@Donoorkans

how can add new message in tower android application? any references for that?

OlavAa

@OlavAa

Not sure I can help, but could you be more precise? "Add new message" is kind of vague, and how to implement will differ on what you are aiming at. As an example I've in process of adding support for new flight modes for the rover that is available in the ardupilot fw but not included in Dronekit. That's pretty easy (in Dronekit), and the added values are retrieved and available in Tower's telemetry bar drop down of flight modes. I don't think the process to keep Dronekit in sync with a new fw version for ardupilot is documented anywhere. If it is I would surely like to read it - we're pretty much on our own here...

Donoorkans

@Donoorkans

Thank you sir, Actually I used raspberry pi in my drone . Raspberry pi reads paddy field greenness so raspberry pi need to send those sensor readings through mavlink connection. I try to develop Ground control station Android application to received that message. How can i define new mavlink messages in dronekit-android and where i need to change the code. (For example Application shows roll pitch yaw values like that i try to put my sensor readings into tower application)

OlavAa

@OlavAa

And send the sensor data to the flight controller to retrieve this additional data (along with drone data in general) from the drone? Going to do something similar later, no experiences to share right now. Sorry. What I expect I need to do then is to investigate how Dronekit handles something similar (like Altitude, perhaps). And then to extend a current class (or make a new) with a getYourDesiredSensorData() function. And then continue in Tower to utilize it.

This example is for Dronekit

OlavAa

@OlavAa

Found this example for Dronekit python. I assume it might provide relevant guidance even though not for Dronekit Android: https://dronekit-python.readthedocs.io/en/latest/examples/create_attribute.html

OlavAa

@OlavAa

And perhaps there is some hint for you in this brief issue discussion on github: dronekit/dronekit-android#403

Hugo Daniel Martins Silva

@hugosilva123_gitlab

Good night I would like to know where to find a tutorial for setting up the drone kit in android studio

OlavAa

@OlavAa

Ref comment from Oct 20th: You can get it on Gitbub here: https://github.com/dronekit/dronekit-android

Sorry. The link you need for instructions were added in a comment on Oct 11th... I followed these instructions, and after some struggle (don't remember the details) I got it to work: https://github.com/DroidPlanner/Tower/wiki/Work-with-DroneKit-Android

Hugo Daniel Martins Silva

@hugosilva123_gitlab

Thanks a lot for the help. Now should I install the api that is on dronekit?

Hugo Daniel Martins Silva

@hugosilva123_gitlab

i dwoload the tower and now?

OlavAa

@OlavAa

I guess the only reason to clone Dronekit is to have full control and to be able to modify it if needed. If that is not necessary then you only need to clone Tower. If you intend to alter Dronekit, work according to the instructions in the link. The cloned Tower should come up easily as long as you do not upgrade gradle (plugin?). You will probably want to at some point, but it is nice to be able to build Tower at least once before you struggle. Just my point of view, of course.

Sudarshan-Impace

@Sudarshan-Impace

@OlavAa Thank you ,Actually I update gradle when i open project first time then errors are occured in my project.

Donoorkans

@Donoorkans