How to use pList in iOS Programming

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The URL based method for this:

// Get the URL for the document directory
NSFileManager *fileManager = [[NSFileManager alloc] init];
NSURL *documentDirectoryURL = [[fileManager URLsForDocumentDirectory:NSDocumentDirectory inDomains:NSUserDomainMask] objectAtIndex:0];

// Turn the filename into a string safe for use in a URL
NSString *safeString = [@"scores.plist" stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

// Create an array for the score
NSMutableArray *array = [[NSMutableArray alloc] init];      
[array addObject:[NSNumber numberWithInt:score]];

// Write this array to a URL
NSURL *arrayURL = [NSURL URLWithString:safeString relativeToURL:documentDirectoryURL];
[array writeToURL:arrayURL atomically:YES];

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