Android Question DJI SDK

Erel

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• Jul 10, 2020

• #2

What happens when you use the current SDK on Android 10? I'm pretty sure that I tested it with that version.

 

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madru

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• Jul 10, 2020

• #3

I get this after connection the remote to the phone:

B4X:

java.lang.UnsatisfiedLinkError: No implementation for java.lang.String dji.midware.natives.SDKRelativeJNI.native_getUsbAccessoryAttachedString found () (Tried Java_dji_midware_natives_SDKRelativeJNI_native_1getUsbAccessoryAttachedString and Java_dji_midware_natives_SDKRelativeJNI_native_1getUsbAccessoryAttachedString__)
AT dji.midware.natives.SDKRelativeJNI.native_getUsbAccessoryAttachedString (Native Method,)

Android Mobile SDK 4.11.2 Release Notes
Added support for Android Q adaptation.

 

Last edited: Jul 10, 2020

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Erel

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• Jul 12, 2020

• #4

Did it crash?

 

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agraham

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• Jul 12, 2020

• #5

Erel said:

Did it crash?

Click to expand...

The drone or the software?

 

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Erel

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• Jul 12, 2020

• #6

It is not too difficult to crash the drone when you build the controlling app. Happened to me when I played with auto takeoff in-house...

 

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udg

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• Jul 12, 2020

• #7

Did you played and crashed the drone in your house???
Did the black-box aboard recorded your wife's reaction too? ?

 

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DonManfred

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• Jul 12, 2020

• #8

Erel said:

Happened to me when I played with auto takeoff in-house...

Click to expand...

I kindly like to suggest to remember the warnings inside the Library Thread

- Don't fly the drone indoors.

Click to expand...

Sorry, couldn´t resist ;-)

 

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madru

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• Jul 13, 2020

• #9

Erel said:

Did it crash?

Click to expand...

Nope, the App keeps running, just the Java exception will be shown

 

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Erel

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• Jul 13, 2020

• #10

Ignore it. You will see many errors in the unfiltered logs when using DJI SDK.

 

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madru

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• Jul 14, 2020

• #11

finally I got more info from my customer, he says that no USB connectivity between Phone & Remote is possible. The system ask to connect once or always, after selecting an option the Java Error is shown.
I can not verify the behaviour as do not have an Android 10 device currently, any idea?

 

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Erel

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• Jul 14, 2020

• #12

Are you sure that the customer is testing it on a real device and not an emulator (or any other x86 VM)?

 

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madru

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• Jul 16, 2020

• #13

Hi, sorry it takes always some time to get an answer from those guys.

he said they used a Samsung S10s for testing, what I can not verify.....

i will upgrade a Sony XA2 to LineageOS 17.1.x today for testing. Not the same device as the S10s but has 64bit, USB-C and Q......

keep you posted

 

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madru

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• Jul 22, 2020

• #14

sorry, took some time.....

all good on a Sony XA2 with LineageOS 17.1.x, will organise a S10s for further testing .......

 

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madru

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• Aug 6, 2020

• #15

all good on S10, no idea what they are doing wrong

 

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Tempomaster

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• Aug 25, 2020

• #16

Hello,

DJI has released a new version 4.13 of the SDK:

https://mvnrepository.com/artifact/com.dji/dji-sdk/4.13

This version now supports the relatively new Mavic Mini:

https://www.dji.com/de/mavic-mini

I would very much like to deal with the programming of an app that also supports this multicopter. I found Erel's thread:

https://www.b4x.com/android/forum/threads/dji-drones.75244/

However, I do not know which changes and additions to this example are necessary. I still lack the necessary knowledge for this. I have to rely on additional information. Otherwise this project will probably get stuck with the idea. I would therefore be very grateful for some information.

 

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DonManfred

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• Aug 25, 2020

• #17

It is a mistake to post to existing threads. You should always create a new thread for your Questions/Issues.

The DJI Lib is based on 4.11. As of now there is no new version.

 

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Tempomaster

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• Aug 25, 2020

• #18

I already did that:

https://www.b4x.com/android/forum/threads/dji-drones-library-update.111923/#post-755356

Unfortunately there was no reaction. So I used a thread with a similar topic.

 

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DonManfred

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• Aug 25, 2020

• #19

Gunnar Daehling said:

So I used a thread with a similar topic.

Click to expand...

And do the same mistake again? Posting to an existing thread is an mistake.

Valid for this thread and also valid for the other thread you linked.

 

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Tempomaster

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• Aug 25, 2020

• #20

I just saw it that I posted in an old thread there too. I don't know how to add my contribution to a new thread?

 

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