多线程-NSThread

最新推荐文章于 2024-12-11 11:33:14 发布

tb_show

最新推荐文章于 2024-12-11 11:33:14 发布

阅读量313

点赞数

CC 4.0 BY-SA版权

分类专栏： Swift 文章标签： swift

本文链接：https://blog.youkuaiyun.com/tb_show/article/details/72470021

Swift 专栏收录该内容

22 篇文章

订阅专栏

本文介绍了使用Swift语言在iOS开发中实现多线程的具体方法，包括NSThread的基本使用、线程间通信及同步机制，并对比了NSThread与其他线程管理方式。

摘要生成于 C知道，由 DeepSeek-R1 满血版支持，前往体验 >

import UIKit

class ViewController: UIViewController {

    override func viewDidLoad() {
        super.viewDidLoad()

        //创建一个线程
        let thread:Thread = Thread(target: self,selector: #selector(ViewController.doSomething),object: "param")
        //为线程命名
        thread.name = "childThread"
        //thread.start()

        //线程延迟3秒执行
        self.perform(#selector(ViewController.doSomething),with: "param",afterDelay: 3)



        let thread2:Thread = Thread(target: self,selector:#selector(ViewController.doSomething2),object:"param")
        thread2.name = "childThread2"
        thread2.start()

         print("aa")



    }

    func doSomething(){

        //线程加锁
        let lock:NSLock = NSLock()
        lock.lock()

        print("在子线程中执行")

        //回到主线程中
        self.performSelector(onMainThread: #selector(ViewController.makeSomething), with: "param", waitUntilDone: false)
        //线程解锁
        lock.unlock()





    }

    func doSomething2(){

        let lock:NSLock = NSLock()
        lock.lock()

        print("在另一个子线程中执行")

        lock.unlock()
    }

    func makeSomething(){

        print("主线程刷新UI")
    }


    override func didReceiveMemoryWarning() {
        super.didReceiveMemoryWarning()
        // Dispose of any resources that can be recreated.
    }


}