objective c - How to order an array of objects by a certain property in Cocoa Touch? -

Assuming that I have an array of custom objects, the custom class looks like this

  Person ------- Name of the Name  

Now we say that I want to rearrange the array of these objects that the number is sorted by the number of how it can be done. Could?

1) You must implement the following methods: your person Class

  - For starters in the (NSNumber *) number {return self.number; } - Compare (NSComparisonResult): (person *) person {compare [self number for start-up]]: [person number forting]]; }  

2) When someone needs to sort the array, you simply call

a) Code > NSMutableArray <

  [LogamelArose Sorting Selector: @Selector (compare)];  

b) NSArray

  NSArray * In the case of people sorted = [people are sorted by Array option selector @ Selector (comparison :));