Android Question recursive folder copy: when finished ?

[peacemaker]

HI, All

Good snippet - https://www.b4x.com/android/forum/threads/b4x-copyfolder-deletefolder.69820/#content
But if lots of folders & subfolders with many files - it's looooong process.

How to control it, detecting the finish ?
5 default seconds of the ativity response is not enough.

 

[DonManfred]

Add some sleep and wait for and make it all a resumeable sub so you should be able to get the result.

 

[Erel]

This code is synchronous.

CopyFolder(...)
Log("This is the next statement)

If it is too slow then you should switch to File.CopyAsync. In that case the sub will be resumable and you will need to call it like this:

Wait For (CopyFolder(...)) Complete (Success As Boolean)

 

[peacemaker]

This code is synchronous.

If so, the whole recursive loop should finish after all copied, correct ?
I found in my app that if to finish activity just after CopyFolder - many files\subforders are not copied yet.
If do not finish - all are OK. I guessed that many recursive calls are in the memory and the finish moment is not known well.
How to understand ?

 

[Erel]

The synchronous code should always work or end with an "application not responding error. It will not be interrupted even if the activity is paused.

 

[peacemaker]

So, in your recursive code each file copy should finish before next file copying without File.CopyAsync? But ... not finished.

 

[Erel]

Yes. File.Copy is a blocking method.

Add some log messages and check the size of the copied file.