Suppose I have following data in my game. I have developed game in cocos2d.
Name Score
Sagar 10000
Amit 2000
Vishal 90
Above data is stored in plist file.
Plist has an array as root.
Within that there are 10 dictionary.
Each dictionary has two values:
When I use
NSMutableArray *x=[[NSMutableArray alloc] initWithContentsOfFile:@"Sagar.plist"];
I want to sort this mutable array by score.
Is it possible?
Use a sort descriptor:
NSSortDescriptor * sortByScore = [[[NSSortDescriptor alloc] initWithKey:@"Score" ascending:NO] autorelease];
NSArray * descriptors = [NSArray arrayWithObject:sortByScore];
NSArray * sorted = [x sortedArrayUsingDescriptors:descriptors];
See [NSMutableArray sortUsingDescriptors:], [NSMutableArray sortUsingComparator:] and so on. NSMutableArray provides several methods for sorting. In this case, I'd use the descriptor method if I needed to be compatible before 10.5 and the comparator method for Snow Leopard apps.
I believe on the iPhone, your options are
- (void)sortUsingFunction:(NSInteger (*)(id, id, void *))compare context:(void *)context;
and
- (void)sortUsingSelector:(SEL)comparator;
there is a bunch of decent info on it here: http://www.cocoadev.com/index.pl?SortUsingSelector
EDIT: whoops! saw cocos2d and assumed it was an iPhone question.
