NSTimer timerWithTimeInterval: not working

Question

I\'ve created a test application with timer before implementing it in my project. It was the first time I\'m using timer. But the issue is when I implemented timer using

Answer 1

As a previous answer noted schedule on the main thread, but rather than using assert, put it on the main thread:

@objc func update() {
    ...
}

DispatchQueue.main.async {
            self.timer = Timer.scheduledTimer(timeInterval: 0.01, target: self, selector: #selector(self.update), userInfo: nil, repeats: true)
        }

And if async is not desired, try this:

let schedule = {
            self.timer = Timer.scheduledTimer(timeInterval: 0.01, target: self, selector: #selector(self.update), userInfo: nil, repeats: true)
        }

        if Thread.isMainThread {
            schedule()
        }
        else {
            DispatchQueue.main.sync {
                schedule()
            }
        }