What methods can be used to prevent conflicts when accessing shared resources?

To prevent conflicts when accessing shared resources in iOS, the following methods can be used:

• Synchronization using GCD (Grand Central Dispatch): using serial queues (DispatchQueue) for sequential access to the resource.

• Using NSLock or other locking primitives: for explicit locking of critical sections.

• Using @synchronized (in Objective-C): for automatic locking of code.

• Using atomic operations and properties: to avoid race conditions.

Example with GCD:

let serialQueue = DispatchQueue(label: "com.example.serialQueue")

serialQueue.sync {
    // Code working with the shared resource
}

This approach ensures that access to the resource is sequential, preventing conflicts and race conditions.