Android Question Dji Library

PABLO2013 · Oct 19, 2020

Greetings, I have carried out several procedures to make this library work, but this is the recurring error, if someone has worked it out and can help me, thanks

B4X:

*** Service (starter) Create ***
** Service (starter) Start **
** Activity (main) Create, isFirst = true **
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **
** Activity (main) Resume **
java.lang.NoClassDefFoundError: Failed resolution of: Landroid/support/v4/util/Pools$SynchronizedPool;
    at dji.midware.data.manager.P3.i$a.<clinit>(Unknown Source)
    at dji.midware.data.manager.P3.i$a.obtain(Unknown Source)
    at dji.midware.data.manager.P3.i.a(Unknown Source)
    at dji.midware.usb.P3.UsbAccessoryService$1.onGetBody(Unknown Source)
    at dji.midware.parser.plugins.b.c(Unknown Source)
    at dji.midware.parser.plugins.b.a(Unknown Source)
    at dji.midware.usb.P3.UsbAccessoryService$RecvBufferRunnable.run(Unknown Source)
    at java.lang.Thread.run(Thread.java:761)
Caused by: java.lang.ClassNotFoundException: Didn't find class "android.support.v4.util.Pools$SynchronizedPool" on path: DexPathList[[zip file "/system/framework/com.android.future.usb.accessory.jar", zip file "/data/app/b4a.dji.test1-1/base.apk", zip file "/data/user/0/b4a.dji.test1/.cache_sdk/sdkclasses.jar"],nativeLibraryDirectories=[/data/app/b4a.dji.test1-1/lib/arm, /data/app/b4a.dji.test1-1/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 8 more
--------- beginning of crash
** Activity (main) Pause, UserClosed = true **
Registro conectado a:  NVIDIA SHIELD Tablet

Erel · Oct 19, 2020

android/support is a reference to the old and no longer used Android Support library. Are you using the latest version of DJI library?

PABLO2013 · Oct 19, 2020

Thanks Erel, yes of course, reinstall everything, b4a, jdk, sdk, and the dji library, as you indicate, I am already registered in dji, etc ... I can't really solve it, thanks

DonManfred · Oct 19, 2020

based on the error you are not using the latest version i guess.
OR you are not using AndroidX

I fear the first one; not using the newest Lib. The error suggests a missing dependecy to android-support

PABLO2013 · Oct 19, 2020

thanks don manfred, AndroidX is installed with the latest version of b4a and what is recommended for proper installation or do I have to take more steps to get AndroidX, thanks

PABLO2013 · Oct 20, 2020

Greetings, this is the last thing that results after doing the updates, if you can help me, thanks

B4X:

java.lang.NoClassDefFoundError: Failed resolution of: Ldji/sdk/sdkmanager/DJISDKManager;
    at anywheresoftware.b4a.objects.DJISDKManagerWrapper.Initialize(DJISDKManagerWrapper.java:38)
    at b4a.dji.test1.main$ResumableSub_Activity_Create.resume(main.java:423)
    at anywheresoftware.b4a.BA.checkAndRunWaitForEvent(BA.java:267)
    at anywheresoftware.b4a.BA.raiseEvent2(BA.java:207)
    at anywheresoftware.b4a.BA.raiseEvent(BA.java:193)
    at anywheresoftware.b4a.keywords.Common$14.run(Common.java:1760)
    at android.os.Handler.handleCallback(Handler.java:751)
    at android.os.Handler.dispatchMessage(Handler.java:95)
    at android.os.Looper.loop(Looper.java:154)
    at android.app.ActivityThread.main(ActivityThread.java:6120)
    at java.lang.reflect.Method.invoke(Native Method)
    at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:865)
    at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:755)
Caused by: java.lang.ClassNotFoundException: Didn't find class "dji.sdk.sdkmanager.DJISDKManager" on path: DexPathList[[zip file "/system/framework/com.android.future.usb.accessory.jar", zip file "/data/app/b4a.dji.test1-1/base.apk"],nativeLibraryDirectories=[/data/app/b4a.dji.test1-1/lib/arm, /data/app/b4a.dji.test1-1/base.apk!/lib/armeabi-v7a, /system/lib, /vendor/lib]]
    at dalvik.system.BaseDexClassLoader.findClass(BaseDexClassLoader.java:56)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:380)
    at java.lang.ClassLoader.loadClass(ClassLoader.java:312)
    ... 13 more
(Exception) java.lang.Exception: java.lang.NoClassDefFoundError: Failed resolution of: Ldji/sdk/sdkmanager/DJISDKManager;
** Activity (main) Pause, UserClosed = false **
--------- beginning of system
** Activity (main) Resume **
** Activity (main) Pause, UserClosed = false **

Erel · Oct 21, 2020

I recommend you to wait for the DJI library to be updated. It will be easier.

I'm waiting for DJI to support the Mavic Air and will then update it. It is expected to be supported this year.

PABLO2013 · Oct 21, 2020

Thank you very much, I wish I could include Dji Ui, but thank you very much.

DonManfred · Oct 21, 2020

PABLO2013 said:
I wish I could include Dji Ui

DJI UI needs an update too. But as i do not own a Drone anymore (gave my drone to my nephews) you should not expect to get any more Updates on DJI UI.

PABLO2013 · Oct 21, 2020

Thanks Don Manfred for your library even without updating it is good ... my nephews will not get my drone.

Android Question Dji Library

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