In my app, I have a simple ASCII file which stores some config info and other small info which it uses and changes. I want to copy that file to the iPhone with the app.
1) Please tell me where I should put this file (config.txt) in xcode. Should I put it under Resources ?
2) How will I access it in the iPhone ? Can I just use
str = [NSString stringWithContentsOfFile:@"config.txt"]
or do I have to use a more complete path; if yes, what is that ?
You should use NSUserDefaults to store user settings, if the application can change them.
The documentation is here.
The settings are stored as a plist file, so you can store NSDictionary instances, NSArray instances, etc.
If you want to pre-populate your NSUserDefaults with some settings, you can do so with some code like this one:
NSString *filePath = [[NSBundle mainBundle] pathForResource:@"defaults" ofType:@"plist"];
NSDictionary *defaultsDict = [NSDictionary dictionaryWithContentsOfFile:filePath];
[[NSUserDefaults standardUserDefaults] registerDefaults:defaultsDict];
You need to put a defaults.plist file on your Resources folder with the default settings, and use the code above. I run that code from the AppDelegate's +(void)initialize method, but you can choose another place to call it.
You can put it in Resources, yes. To get the file, then, you can simply use:
[[NSBundle mainBundle] pathForResource:@"config" ofType:@"txt" inDirectory:@""]]
May I suggest NSUserDefaults for your settings, however? It will save you plenty of trouble in reading and writing them.
And if you want to retrieve the NSUserDefaults, you can do the following:
NSUserDefaults *prefs = [NSUserDefaults standardUserDefaults];
// getting a NSString
NSString *myString = [prefs stringForKey:@"keyToLookupString"];
// getting a NSInteger
NSInteger myInt = [prefs integerForKey:@"integerKey"];
// getting a Float
float myFloat = [prefs floatForKey:@"floatKey"];
If nsuserdefaults doesn't meet your needs, you could store the config information in a file in the Documents directory. If the file doesn't exist on startup, then read the version you have in Resources.
