list folder

[Daniel Bolik]

Is there a way to filter out just folders using app.ListFolder?

I am able to filter by file type, but need to get just folders.

Example:
app.ListFolder("/sdcard/droidscript/","folder");

[sankarshan dudhate]

I don't think there is a away to achieve this without a little hack at the moment. It'd be worth putting a request for "Folder" option in the 'Tell Us What You Want Thread'.

[sankarshan dudhate]

Following code shows how you can get the array of folders in your default storage :

     

//Called when application is started.

function OnStart()

{

 Only_Folders = []; //an empty array

 

 //Get the path of special folder. helps us get default storage path

 base = app.GetSpecialFolder( "Music" );

 

 n1 = base.lastIndexOf("/");

 

 //cut the base path till the index n1+1

 pbase = base.substring(0,n1+1);

 

 lbase = app.ListFolder( pbase ); //list the default storage

 

 lsbase = lbase.toString(); //get the string representation of lbase

 

 labase = lsbase.split(","); //split lbase on ",". returns an array

 

 //Run the labase array through a loop which checks if an

 //item in the array is a file. If an item is a folder, add it to our

 //array Only_Folders.

 for(i=0; i<labase.length; i++) {

  exists = app.FolderExists( pbase + labase[i] );

  if(exists) Only_Folders.push(labase[i]);

 }

 

  alert(Only_Folders); //Alert the Only_Folders array.

}

[John LaDuke]

app.ListFolder returns an array, filter it. I.e:

app.ListFolder("/sdcard/Droidscript").filter( function(name){ return app.IsFolder("/sdcard/Droidscript/"+name); });

[Symbroson]

app.ListFolder already has a filter argument:
alert(app.ListFolder("/sdcard/Documents","*.txt").join("\n"))

[John LaDuke]

...which is limited to one file type at a time, i.e. "jpg". How would you filter for ALL image types less than 100k in size?

[JustAnotherDude]

just use "*.png,*.jpg,*.bmp" etc

[Symbroson]

I think also regex was possible since the last update - but I'm not sure - try it out

[John LaDuke]

Is that a guess or did you actually try it yourself?

[John LaDuke]

I tried a "regex" option but couldn't get it to work, any more suggestions?

[Steve Garman]

var list = app.ListFolder( "/sdcard/pictures", ".*\.jpg|.*\.png", 0, "regex,files" );

[John LaDuke]

Oh, so unlike JavaScript regex you MUST match all chars.

[Steve Garman]

I'm not quite sure what gives you that impression John.

Can you give us a sample of the type of regex you have in mind?