Dropbox Sync Library

[freedom2000]

Try
  (your code)

  Catch as exception
      (your Error Message)
End Try

Yes sure !

But I don't know at what (B4A) line the exception is raised ... Seems to be in a callback...

 

[freedom2000]

The Try / Catch block will most probably not work here as this error is considered a critical error.

You need to add these folders from the SDK to DropboxSync jar:

@Erel Thank you for your precious help

So what I did :
1) download the dropbox sync lib : https://www.dropbox.com/developers/sync/sdks/android
2) open it and copy the proposed folders with 7zip into the DropBoxSync.jar in B4A libraries folder

I will see if it corrects the crash

 

[freedom2000]

I will see if it corrects the crash

Well the problem is reproduced today ...

As you can see it occurred on a LG Optimus L3 (e0) smartphone.
Searching on the net I found that this device is an ARM one.

So the problem is even worse than expected ... Lost in the Matrix !

 

[Erel]

See the answer here: http://stackoverflow.com/questions/20417027/dropbox-sync-api-unsatisfied-link-error

Seems like you will need to copy the arm file to the two other folders if you add the x86 file.

 

[freedom2000]

See the answer here: http://stackoverflow.com/questions/20417027/dropbox-sync-api-unsatisfied-link-error

Seems like you will need to copy the arm file to the two other folders if you add the x86 file.

Thank you Erel for this answer

I have thus copied the Armeabi/libDropboxSync.so file into a newly created Armeabi-V7a folder.

I am not sure of the result and can't test it...
With my Nexus 5 everything was Ok since the beginning
Anytime I add a new dropboxSync.so file, my Apk increases by 1MB ... that's a pity

 

[Erel]

Copy it to armeabi-v7 as well.

 

[freedom2000]

Copy it to armeabi-v7 as well.

Ok --> done (1 MB more )

 

[msucho]

Hi Erel:
I was trying to use DropBox library for an application and I always get this error:
···························································································································
** Activity (main) Resume **
** Service (backgeo) Create **
Error occurred on line: 43 (backgeo)
java.lang.RuntimeException: java.lang.NullPointerException
at anywheresoftware.b4a.dropbox.DbxAccountManagerWrapper.LinkAccount(DbxAccountManagerWrapper.java:96)
at b4a.wifilocation1.backgeo._service_create(backgeo.java:215)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.shell.Shell.runMethod(Shell.java:636)
at anywheresoftware.b4a.shell.Shell.raiseEventImpl(Shell.java:302)
at anywheresoftware.b4a.shell.Shell.raiseEvent(Shell.java:238)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at anywheresoftware.b4a.ShellBA.raiseEvent2(ShellBA.java:121)
at anywheresoftware.b4a.BA.raiseEvent(BA.java:158)
at b4a.wifilocation1.backgeo.onCreate(backgeo.java:45)
at android.app.ActivityThread.handleCreateService(ActivityThread.java:2687)
at android.app.ActivityThread.access$1700(ActivityThread.java:159)
at android.app.ActivityThread$H.handleMessage(ActivityThread.java:1404)
at android.os.Handler.dispatchMessage(Handler.java:99)
at android.os.Looper.loop(Looper.java:176)
at android.app.ActivityThread.main(ActivityThread.java:5419)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:525)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:1046)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:862)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.NullPointerException
at anywheresoftware.b4a.dropbox.DbxAccountManagerWrapper.LinkAccount(DbxAccountManagerWrapper.java:94)
... 22 more
·····························································································································································
Where could be the problem?

Thank's in advance.

Marcelo

 

[Erel]

Have you initialized the manager object? If yes then check the unfiltered logs. There is probably a configuration error.

 

[GMan]

What line initialized that error ?
Try to run in Debug-Mode to get the exact code line

May be better you post your code that we have a look at it...

 

[Erel]

You must initialize it from an Activity as it shows a dialog.

 

[msucho]

I will try.
One more question:
If I write mi app like a service on boot phone scenario, can I use the dropboxsync to store the data?

Thank you very much.

 

[Erel]

You will need to initialize it from an activity. You can start a transparent activity and then initialize it.

 

[msucho]

Amazing!!!
It works perfect from the activity.
Thank you for the quick answers.

PD:
I have note I posted mi app containing the key and secret dropbox developer keyd. Sorry
I will delete only this post.

Marcelo

 

[ValDog]

Erel,

"2. Copy the attached wrapper files to the libraries folder."



What are the "wrapper files?"

 

[NJDude]

The 2 files contained in the attached ZIP file on the first post.

Erel,

"2. Copy the attached wrapper files to the libraries folder."



What are the "wrapper files?"

The 2 files contained in the attached ZIP file on the first post.

 

[tsteward]

Hello Erel,
Is there a way list the files that need downloading? Ie aren't in sync with the local files.

When requesting to download a file (with Autosync set to True) is the file still downloaded even if it is the same as the local file.

Procedure flow to download files?
Manager.Sync
then inside sub Manager_SyncCompleted is where you might do Manager.DownloadFile(.....)

Have I got that right?

Thanks Heaps

 

[tsteward]

To to make it clear currently I do this

For Each FileInfo As DbxFileInfo In DBoxManager.ListFiles("/")
            DBoxManager.DownloadFile("/", FileInfo.Name, DBFileDir, FileInfo.Name)
        Next

This downloads all files. (There are only files no folders)
I really only want to download the files necessary. Either missing or not up to date.

 

[Erel]

You should only download the file before you want to use it. DropboxSync automatically syncs the internal cache.

 

[Steini1980]

Thank you Erel for the great Library, but how can I delete files stored on DropBox Account?
I want to delete the already downloaded files on my account, I use it only for data transfer.