Adding isDirectory() and isFile() to iOS's TiFileSystemFileProxy

app.js

/*jslint maxerr:1000 */

//Test if the resources folder is a directory.
var resourceDir = Titanium.Filesystem.getFile(Titanium.Filesystem.resourcesDirectory);
Ti.API.info('resourceDir ' + resourceDir);
Ti.API.info('resourceDir nativePath ' + resourceDir.nativePath);
Ti.API.info('resourceDir isDirectory ' + resourceDir.isDirectory());
Ti.API.info('resourceDir isFile ' + resourceDir.isFile());


var newDir = Titanium.Filesystem.getFile(Titanium.Filesystem.applicationDataDirectory,'mydir');
if(!newDir.exists()){
  Ti.API.info("Created mydir: " + newDir.createDirectory());	
}

var newFile = Titanium.Filesystem.getFile(newDir.nativePath,'newfile.txt');
newFile.write("\nText appended via write()", true);

Ti.API.info('newdir ' + newDir);
Ti.API.info('newdir nativePath ' + newDir.nativePath);
Ti.API.info('newdir isDirectory ' + newDir.isDirectory());
Ti.API.info('newdir isFile ' + newDir.isFile());


Ti.API.info('newFile ' + newFile);
Ti.API.info('newFile nativePath ' + newFile.nativePath);
Ti.API.info('newFile isDirectory ' + newFile.isDirectory());
Ti.API.info('newFile isFile ' + newFile.isFile());

Ti.API.info('Now open a window so we can test on device easier');

// Create a simple window to show our results
(function(){
	
	var win = Ti.UI.createWindow({
		backgroundColor:'#fff',layout:'vertical'
	});

	win.add(Ti.UI.createLabel({
		top:10, text:'resourceDir isDirectory ' + resourceDir.isDirectory()
	}));
	
	win.add(Ti.UI.createLabel({
		top:10, text:'resourceDir isFile ' + resourceDir.isFile()
	}));
		
	win.add(Ti.UI.createLabel({
		top:10, text:'newdir isDirectory ' + newDir.isDirectory()
	}));
	
	win.add(Ti.UI.createLabel({
		top:10, text:'newdir isFile ' + newDir.isFile()
	}));

	win.add(Ti.UI.createLabel({
		top:10, text:'newFile isDirectory ' + newFile.isDirectory()
	}));
	
	win.add(Ti.UI.createLabel({
		top:10, text:'newFile isFile ' + newFile.isFile()
	}));

					
	win.open();	
	
})();

Ti.API.info('End Test');

TiFileSystemFileProxy.m

//Paste the following into your TiFileSystemFileProxy.m file


-(id)isFile:(id)unused
{
	BOOL isDirectory;
	return ([fm fileExistsAtPath:path isDirectory:&isDirectory] && !isDirectory);
}

-(id)isDirectory:(id)unused
{
	BOOL isDirectory;
	return ([fm fileExistsAtPath:path isDirectory:&isDirectory] && isDirectory);	
}