NSMutablearray move object from index to index

iphone objective-c nsarray
Jonathan. picture Jonathan. · Dec 3, 2010 · Viewed 46.9k times · Source

I have a UItableview with reordable rows and the data is in an NSarray. So how do I move an object in the NSMutablearray when the appropriate tableview delegate is called?

Another way to ask this is how to reorder an NSMutableArray?

Answer

Joost picture Joost · Dec 4, 2010 
id object = [[[self.array objectAtIndex:index] retain] autorelease];
[self.array removeObjectAtIndex:index];
[self.array insertObject:object atIndex:newIndex];

That's all. Taking care of the retain count is important, since the array might be the only one referencing the object.

Related questions

Convert NSArray to NSDictionary

How can I convert an NSArray to an NSDictionary, using an int field of the array's objects as key for the NSDictionary?

Read More
Search NSArray for value matching value

I have an NSArray of objects, which has a particular property called name (type NSString). I have a second NSArray of NSStrings which are names. I'd like to get an NSArray of all the objects whose .name property matches one …

Read More
How do I put objects in an NSArray into an NSSet?

I have some NSDictionary objects stored in an NSArray called telephoneArray. I fetch the values for the key number and then replace the NSDictionary I've just read with a new object at the same index in the array. I then …

Read More