How to better show file structure with FatFS and TouchGFX?

[EEuge]

Hello!

I have code, working with FatFS in system area of my project.

main.c

res = f_opendir(&dir, "0:/");
while(1)
	{
           res = f_readdir(&dir, &fileInfo);
          if (res==FR_OK && fileInfo.fname[0])
          {
            fn = fileInfo.fname;
           // ... some code
	}
       else break;
     }
    f_closedir(&dir);

And I have scrollList widget, where I want to show filelist.

How can I send list of filenames to widget by Model->Presenter->View ?

1. Create array filelist[65535][256] , and send it to view - is not good idea...
2. Step by step sending command from View to System which everytime calls " res = f_readdir(&dir, &fileInfo); ", gets filename, and asks next filename again - is better, but still not good.
3. Can I call res = f_opendir(&dir, "0:/"), and send variable "dir" to view?
4. May be I can #include "fatfs.h" in STORAGE_SCREENView.cpp and work with FatFS from View?

What can you advise for me?

[MM..1]

Im not try this , but maybe

Unicode::fromUTF8((const uint8_t*)FileList[data],textArea1Buffer, 20);
 textArea1.setWildcard(textArea1Buffer);
textArea1.invalidate();

[EEuge]

Hello! All works very good.

But you forgot about one detail - after screen setup I need to close dir handle, and I need to open and close it every update of Item.

I added it, and all works very good.

[MM..1]

Yes i write you need reset possition in dir, and you can try dir.index set before f_readdir, but other way is close and open dir =)

[EEuge]

Thanks.

Next question.

I want work with scrolllist this way: touching and dragging -> scrolling the list of files, pressing (without drag) and releasing -> go to directory after releasing.

Question: how can i get Release event? Scrollist has onle 2 events - setItemSelectedCallback and setItemPressedCallback

[MM..1]

Open new thread and mark here one reply as best

[EEuge]

OK

[EEuge]

Hello!

the scrollList1.itemChanged(itemIndex) function does not call scrollList1UpdateItem if the item with the itemIndex number is outside the scroll window. How to fix it?