将XML写入项目（iOS，Xcode 4）

Question

I think there just isn't a solution to my problem, but I was hoping someone might have a creative work-a-round from past experience to share. I have created a 3D level editor for my latest iPhone/iPad game, and I am at the final stage where I need to write the map out into an XML file format I've devised.

I'm using KISSXML as my XML library for parsing, and I'm getting ready to extend my use of it to writing as well. My question is this: is it possible to somehow write to a location that I can view and then store in the project? For the initial 20-30 map files I create, I want to directly import them into the project as resources that could be edited later as text files too... I don't want them stored as app resources yet at this stage (but I've heard you cannot write from an app to the resources structure for a project?). Is there some creative way to even just send myself the XML or write it in a location I can retrieve it easily? When I extend the editor to be a usable tool by players, writing to the app directory will be great - but for now, that is not what I'm looking for.

Any suggestions or tips would be fantastic!

Here's a snippet I'm using to write out at the moment. I guess an even simpler question is: where does this go? Is it somewhere I can access outside of my app? Is there some way to write it so that it is more accessible to me?

NSArray *paths = NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES);
NSString *documentsDirectory = [paths objectAtIndex:0];

//make a file name to write the data to using the documents directory:
NSString *fileName = [NSString stringWithFormat:@"%@/xmlfile.xml", documentsDirectory];

DDXMLDocument* document = [[[DDXMLDocument alloc] initWithXMLString:@"<addresses/>" options:0 error:nil] autorelease];
DDXMLElement* root = [document rootElement];
[root addChild:[DDXMLNode elementWithName:@"address" stringValue:@"Some Address"]];

NSData *xmlData = [document XMLDataWithOptions:DDXMLNodePrettyPrint];
if (![xmlData writeToFile:fileName atomically:YES]) {
    NSLog(@"Could not write document out...");
}

UPDATE

Using the following line:

NSLog(@"Documents: %@", [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory, NSUserDomainMask, YES) objectAtIndex:0]);

I can get access via finder in OSX to my documents directory and view/edit the XML file I've written. This of course only works when I generate the file using the simulator, not the device. This is looking more and more like a problem without a solution... I suppose I could email the XML file as an attachment to myself as a cheap hack? Not my preferred solution, but may have to do for now.

Answer 1

From my understanding, you want to inspect the files your app creates. Several possible solutions come to mind. You could

1. enable Itunes Files Sharing by setting the UIFileSharingEnabled property in your application's info.plist.
2. implement Dropbox
3. make your app post the file to a webserver you have in your local network.

Option 1 is probably the easiest to setup, but you have to make some clicks to get to your data. If you have a webserver running anyway I would probably go for option 3.

Answer 2

Without hearing from anyone, I'm assuming this is fairly impossible to do. I'm switching gears and now both A) saving the map to the apps directory for future loading, and B) emailing a copy of the XML to myself for extraction and then manual integration with the project. Not the ideal solution I hoped for, but it does work.

Hope this helps anyone else curious down the road.