Saving files in cocoa

Question

I\'m sure this is a really easy to answer question but I\'m still new to cocoa. I need to save my applications data. The app has 4 text fields and each field needs to be sav

Answer 1

A convenient way would be to use PLists:

NSDictionary *arr = [NSDictionary dictionaryWithObjectsAndKeys:
                      string1, @"Field1", string2, @"Field2", nil];
NSData *data = [NSPropertyListSerialization dataFromPropertyList:arr
                format:NSPropertyListXMLFormat_v1_0 errorDescription:nil];

NSSavePanel *panel = [NSSavePanel savePanel];

NSInteger ret = [panel runModal];
if (ret == NSFileHandlingPanelOKButton) {
    [data writeToURL:[panel URL] atomically:YES];
}

For deserialization:

NSData       *data = [NSData dataWithContentsOfURL:urlOfFile];
NSDictionary *dict = [NSPropertyListSerialization propertyListFromData:data
                       mutabilityOption:NSPropertyListImmutable
                       format:nil errorDescription:nil];
NSString *string1 = [dict objectForKey:@"Field1"];
// ... etc.