NSMutableArray sort with object

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How to sort an NSMutableArray with custom objects in it?

i have a object with Type of NSObject contains "posts" object type of NSMutableArray. that post object has ID property.

MyObject.posts.post.ID = NSInteger;

I want to sort "posts" NSMutableArray by ID. i have tried couple ways but couldn't be success. any help/sample would be great.

thank you.

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You can implement a compare method, or use NSSortDescriptor.

This question and the answer may helps you.

How to sort an NSMutableArray with custom objects in it?

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You can sort an array with a block using NSComparator (NSComparator)

Definition of -sortedArrayUsingComparator: found here

MyObject.posts = [MyObject.posts sortedArrayUsingComparator:^(id obj1, id obj2) {
  if (obj1.post.ID > obj2.post.ID)
    return (NSComparisonResult)NSOrderedDescending;
  if (obj1.post.ID < obj2.post.ID)
    return (NSComparisonResult)NSOrderedAscending;
  return (NSComparisonResult)NSOrderedSame;
}];

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