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Fernando Bloomfield
@bloomfieldfernando 20, Jun 2023 12:00 AM
method swizzling
What is method swizzling?
answers 3
Answer 1
Jackson Buckwalter
@jacksonbuckwalter1 27, Jun 2023 03:44 PM
Here’s how method swizzling works:
1. Identify the target methods: First, you need to identify the methods you want to swizzle, typically by their selectors (method names).
2. Create new methods: Next, you create new methods that will serve as the replacement or swizzled implementation of the original methods. These new methods will contain the desired modifications or additions to the original behavior.
3. Swizzle the methods: The actual swizzling process involves exchanging the implementations of the original method and the swizzled method. This is typically done using runtime functions or libraries like Objective-C runtime or Swift runtime.
4. Invoke the swizzled methods: Once the swizzling is performed when the original method is called, it will actually execute the swizzled method instead of its original implementation. This allows you to customize the behavior of the method without modifying its original code.
Method swizzling can be a powerful technique, but it should be used with caution. It can introduce complexity and make code harder to understand and debug. It’s important to ensure proper handling of concurrency and to document the swizzling changes thoroughly to maintain code clarity and avoid unexpected behavior.
Answer 2
Jackson Buckwalter
@jacksonbuckwalter1 27, Jun 2023 03:43 PM
With method swizzling, you can modify the behavior of existing methods without directly modifying their original implementation. This technique is often used to add functionality, override behavior, or intercept method calls in iOS applications.
Answer 3
Jackson Buckwalter
@jacksonbuckwalter1 27, Jun 2023 03:43 PM
Method swizzling is a technique in iOS development that allows you to change the implementation of a method at runtime. It involves swapping the implementation of one method with another, typically within a class or its subclasses.