B4J Question Threading

[moore_it]

Hi all,

it's possible to use outputstream for save a canvas.snapshot in threading mode ?

Thanks in advice.

 

[Erel]

What do you mean with Threading mode?

What are you trying to do?

 

[moore_it]

Using threading library (have 50000 photos to resize) i need to copy a image in a canvas for resizing ad save the new resizing picture in a disk folder.
I need to refresh UI when user waiting.
With threading isn't possible to do that or not ?

 

[Erel]

You will need to test it. A a general rule only the main thread is allowed to access the UI elements.

Another option is to call a utility program to resize the images with jShell: https://www.b4x.com/android/forum/t...ion-image-manipulation-library.76095/#content

 

[moore_it]

Thanks Erel
I try jShell