iOS: store two NSMutableArray in a .plist file

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  1. Create an NSArray containing your two NSMutableArrays.

    NSArray *array = [NSArray arrayWithObjects:<#(id), ...#>, nil];

  2. Write the array to a file.

    NSArray *paths = NSSearchPathForDirectoriesInDomains(NSLibraryDirectory, NSUserDomainMask, YES);
NSString *libraryDirectory = [paths objectAtIndex:0];
NSString *location = [libraryDirectory stringByAppendingString:@"/somefilename.plist"];
[array writeToFile:location atomically:YES];

  3. Load the array from the file.

    NSString *path = [bundle pathForResource:@"file" ofType:@"plist"];
NSArry *array = (path != nil ? [NSArray arrayWithContentsOfFile:location] : nil);

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