Kas saaksite selgitada Release mõistet Objective-C-s ja selle rolli mälu haldamisel?

In Objective-C, the release method is used to manage the lifecycle of objects in the reference counting memory management model. Each object has a reference count that increases with retain and decreases with release. When the count reaches zero, the object is destroyed and memory is freed.

The role of release is to decrease the reference count of the object, signaling that the current owner no longer needs the object. This helps prevent memory leaks by releasing resources when they are no longer needed.

Example:

NSObject *obj = [[NSObject alloc] init]; // count = 1
[obj retain]; // count = 2
[obj release]; // count = 1
[obj release]; // count = 0, object is destroyed

It is important to call release as many times as retain or alloc/init have been called, to balance the count and prevent leaks or premature deletion of the object.