Dropbox Sync Library

Erel · Jan 29, 2014

Not sure that you can/should look into the root folder. Dropbox Sync works with a specific folder that you set during configuration.

Mahares · Jan 29, 2014

How can I make this below function work. If not possible, will this be available in the next well anticipated version of this great lib?

B4X:

Sub Manager_DownloadProgress (ServerPath As String, TotalDownloaded As Long, Total As Long)
 Dim lblDLSummary  As label
    If Total > 0 Then
      lblDLSummary.Text = "Downloaded " & Round(TotalDownloaded / 1000) & "KB, Out Of " & Round(Total / 1000) & "KB"
    Else
      lblDLSummary.Text = "Downloaded " & Round(TotalDownloaded / 1000) & "KB"
    End If
 End Sub

Erel · Jan 30, 2014

There is no DownloadProgress event in this library. I guess that you are requesting this feature?

Mahares · Jan 30, 2014

There is no DownloadProgress event in this library. I guess that you are requesting this feature?

@Erel: I started using Dropbox sync lib very recently and I like it a lot better than using FTP, far fewer problems, if it only has a few more features like the download progress and file sizes, etc. I would recommend a newer version if you have the time to do it.
By the way, for your information, I upload and download several text files to Dropbox with the .tab extension, but surprisingly, the .tab extension was not permitted among their list of permitted file extension. Any file with .tab extension was refused. Finally after convincing their developers via few pleading emails, they added it as one of the permitted extension. The above note about tab extension is a followup to the question I asked you in Post #129 and post #130.

Erel · Feb 17, 2014

V1.25 is released - Adds an AutoSync field. Setting this field to true will cause the cache to be synchronized before files are downloaded. The latest files will be downloaded.

dealsmonkey · Feb 17, 2014

Thanks for the update Erel, I love this library -)

GMan · Feb 17, 2014

Thanks for the update Erel, I love this library -)

+1

cdsincfl · Mar 30, 2014

Hi Erel,

Thanks for B4A and the DropboxSync Lib.

I have installed all the files and created the test project as described at the beginning of this post. I have read all of the posts and suggestions and verified my project code, installed files etc.... Still it does not work. The test project never reaches the "Manager_AccountReady" sub. I have my log and it contains many entries similar to this:

Prepared cache dir '/data/data/b4a.testsync/app_DropboxSyncCache/MYKEYXXXX'.

Trying to load lib /data/data/b4a.testsync/lib/libDropboxSync.so 0x4051c428

Dropbox initialized for application: MYKEYXXXX (b4a.testsync/1 DropboxSync/2.1.1 (Android; 2.3.5; HTC Desire HD armeabi-v7a; en_US))
false true
false true

Button_Click LinkAccount....
Requesting link for a Dropbox new account.
Starting activity: Intent { cmp=b4a.testsync/com.dropbox.sync.android.DbxAuthActivity (has extras) } from pid 4859
** Activity (main) Pause, UserClosed = false **
Starting activity: Intent { cmp=b4a.testsync/com.dropbox.client2.android.AuthActivity (has extras) } from pid 4859

DROPBOX_ERROR_USAGE: sync.cpp:244: This app is not allowed to use the Sync API for file access.
DROPBOX_ERROR_USAGE: sync.cpp:244: This app is not allowed to use the Sync API for file access.
saving to /data/data/b4a.testsync/app_DropboxSyncCache/MYKEYXXXX/logs/err-nouser-1396213559.txt
uploading log file /data/data/b4a.testsync/app_DropboxSyncCache/MYKEYXXXX/logs/err-nouser-1396213559.txt

The errors keep repeating mostly the last 4 lines above.

I have the complete log if it is needed just not sure what entries apply to my problem.
I am using these:

Any help or suggestions are greatly appreciated.

cdsincfl · Mar 30, 2014

Followup:

I am using these files:

DropboxSync Ver. 1,25
dropbox-sync-sdk-android.jar Dated: 3-17-2014 Size: 313kb
HTC Inspire 4G
Android 2.3.5
Dropbox version: 2.3.11.4

Previous post sent before I was able to add these.
Thanks again for any help.
John

Erel · Mar 31, 2014

This is the problem:
DROPBOX_ERROR_USAGE: sync.cpp:244: This app is not allowed to use the Sync API for file access.

This means that your app is not configured correctly. Check the keys and also make sure that it is set correctly with Dropbox.

cdsincfl · Mar 31, 2014

Erel,

I have checked the app settings and the key and secret are correct.
My Dropbox app is set to:

Status - Development
Development Users - 0/100
OAuth2 - blank, no Redirect URI's
Drop-ins domains - blank

I have the Dropbox app named "StashTest"
B4A Package Name - b4a.testsync
B4A #ApplicationLabel: B4A-Sync

When I run the app I get the request to link to my Dropbox and select "Allow".
Nothing else happens after that except the errors in the log.

I know it must be something simple but what am I missing here?

John

GMan · Mar 31, 2014

Sounds very miracolous why it didnt work for you.
Its normally as simple as written before - 1st time you habe to login via Web (through the App i.e. by choosing a backup function) and grant access for the app in the given DropBox account.
If this is done once, any click of the "Backup" function sends the declared file to the App-Folder in the dropbox account.

Did you post the depending code already ?

cdsincfl · Apr 2, 2014

Hi GMan,

I just started over with the code from the first of the post.
Installed and get the same error:
"DROPBOX_ERROR_USAGE: sync.cpp:244: This app is not allowed to use the Sync API for file access."

The app never reaches "Sub Manager_AccountReady" and just keeps returning the above error in the log.

I have uploaded my code and the log file to this post.

Thanks for any help.

John

freedom2000 · Apr 11, 2014

Hi,

I have used this dropbox library without problems until now (on my Nexus5 kitkat 4.4.2).
And one of my (unknown) users reports this bug :

B4X:

java.lang.ExceptionInInitializerError
at com.dropbox.sync.android.CoreAccountManager.initNativeLib(CoreAccountManager.java:155)
at com.dropbox.sync.android.CoreAccountManager.<init>(CoreAccountManager.java:126)
at com.dropbox.sync.android.DbxAccountManager.getInstance(DbxAccountManager.java:150)
at com.dropbox.sync.android.DbxAccountManager.getInstance(DbxAccountManager.java:116)
at anywheresoftware.b4a.dropbox.DbxAccountManagerWrapper.Initialize(DbxAccountManagerWrapper.java:53)
at fr.free.julienGley.SecretRecorder.main._activity_create(main.java:495)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at anywheresoftware.b4a.BA.raiseEvent2(BA.java:174)
at fr.free.julienGley.SecretRecorder.main.afterFirstLayout(main.java:98)
at fr.free.julienGley.SecretRecorder.main.access$100(main.java:16)
at fr.free.julienGley.SecretRecorder.main$WaitForLayout.run(main.java:76)
at android.os.Handler.handleCallback(Handler.java:587)
at android.os.Handler.dispatchMessage(Handler.java:92)
at android.os.Looper.loop(Looper.java:123)
at android.app.ActivityThread.main(ActivityThread.java:3701)
at java.lang.reflect.Method.invokeNative(Native Method)
at java.lang.reflect.Method.invoke(Method.java:507)
at com.android.internal.os.ZygoteInit$MethodAndArgsCaller.run(ZygoteInit.java:862)
at com.android.internal.os.ZygoteInit.main(ZygoteInit.java:620)
at dalvik.system.NativeStart.main(Native Method)
Caused by: java.lang.UnsatisfiedLinkError: Couldn't load DropboxSync: findLibrary returned null
at java.lang.Runtime.loadLibrary(Runtime.java:429)
at java.lang.System.loadLibrary(System.java:554)
at com.dropbox.sync.android.NativeLib.ensureLoaded(NativeLib.java:64)
at com.dropbox.sync.android.NativeLib.<clinit>(NativeLib.java:26)
... 21 more

As far as I can understand it seems that hte Sync library was unreachable...

Any idea of the reason of this crash ?

Thank you

Erel · Apr 13, 2014

The Sync library depends on a native library. Only the arm file is included.

You can add other files by opening the jar file with 7zip (under libs folder).

freedom2000 · Apr 13, 2014

Erel said:
The Sync library depends on a native library. Only the arm file is included.

Thank you Erel,

So even native lib could be buggy

Erel · Apr 13, 2014

The native library is not buggy. The native library for non-arm CPU is not included.

freedom2000 · Apr 13, 2014

Erel said:
The native library is not buggy. The native library for non-arm CPU is not included.

Ok I understand now ... (sorry for the mistake)

So it is dependant on the hardware (OS ?) running my App.

So far I have now 3 bugs reported :

Android version : 2.3.3 - 2.3.7
device : hsdroid2

and

Android version : 2.3.3 - 2.3.7
device : Xperia X10 (X10i)

Does it exist a way to prevent the App from crashing and rather toasting a message "dropbox not supported" ?
Or better, you mentionned that I could add a lib into the libs folder. I can't find this lib...

Any idea please ?

GMan · Apr 13, 2014

Does it exist a way to prevent the App from crashing and rather toasting a message "dropbox not supported" ?

B4X:

Try
  (your code)

  Catch as exception
      (your Error Message)
End Try

Erel · Apr 13, 2014

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:

Dropbox Sync Library

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