@selector() in Swift?


The Mystery of @selector() in Swift: Solving the NSTimer Problem
š Hey there, fellow Swifter! š Are you trying to create an NSTimer in Swift but finding yourself stuck? You're not alone! š¤ Let's dive into the magical world of @selector() and find the perfect solution to your problem. š”š
The Problem
So, you're trying to create an NSTimer in Swift, and you encounter an error message while using the @selector() syntax:
NSTimer(timeInterval: 1, target: self, selector: test(), userInfo: nil, repeats: true)
The error message you see is:
Could not find an overload for 'init' that accepts the supplied arguments
Nerve-wracking, isn't it? š°
The Investigation
You've tried a few things to tackle this issue. Let's analyze them one by one:
selector: test()
selector: test
selector: Selector(test())
Unfortunately, none of these approaches seem to work, and you're not finding any helpful solutions in the references either. š
The Solution š”
Here's the secret sauce to solving this @selector() conundrum in Swift:
#selector(test)
Yes, you read that correctly. The correct syntax simply involves replacing @
with #
and ditching the parentheses. šš„³
So, your modified code will look like this:
NSTimer(timeInterval: 1, target: self, selector: #selector(test), userInfo: nil, repeats: true)
By making this small tweak, you'll be able to create your NSTimer without any hiccups or error messages. š
One More Thing š
Now that we've successfully decoded the mystery of @selector() in Swift, it's time to level up your Swift skills! š But wait, before you go, we'd love to hear from you. š£
Have you encountered any other Swift programming problems? Is there a particular concept you'd like us to cover in our next blog post? Drop a comment below and let's dive into it together! š¬š
Happy coding! š»š
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