SwiftGCD
Swift-GCD Package GCDGroup, GCDQueue, GCDSemaphore ,GCDTimer
CocoaPods
CocoaPods is a dependency manager for Cocoa projects. You can install it with the following command:
$ gem install cocoapods
To integrate SwiftGCD into your Xcode project using CocoaPods, specify it in your Podfile:
source 'https://github.com/CocoaPods/Specs.git'
platform :ios, '8.0'
use_frameworks!
target '<Your Target Name>' do
pod 'SwiftGCD'
end
Then, run the following command:
pod install
Example
import UIKit
import SwiftGCD
class ViewController: UIViewController {
var queue : GCDQueue!
var group : GCDGroup!
var timer : GCDTimer!
var semaphore : GCDSemaphore!
override func viewDidLoad() {
super.viewDidLoad()
timerTask()
}
/**
普通用法
*/
func normalTask() {
GCDQueue.globalQueue.excute { () -> Void in
// 子线程执行操作
GCDQueue.mainQueue.excute({ () -> Void in
// 主线程更新UI
})
}
GCDQueue.executeInGlobalQueue { () -> Void in
// 子线程执行操作
GCDQueue.executeInMainQueue({ () -> Void in
// 主线程更新UI
})
}
}
/**
延时用法
*/
func delayTask() {
GCDQueue.executeInGlobalQueue({ () -> Void in
// 延时 2s 执行
}, afterDelaySeconds: .seconds(2))
}
func waitExecute() {
queue = GCDQueue(queueType: .concurrentQueue)
queue.waitExecute { () -> Void in
print("1")
sleep(1)
}
queue.waitExecute { () -> Void in
print("2")
sleep(1)
}
queue.waitExecute { () -> Void in
print("3")
sleep(1)
}
queue.waitExecute { () -> Void in
print("4")
}
}
/**
设置屏障
*/
func barrierExecute() {
queue = GCDQueue(queueType: .concurrentQueue)
queue.excute { () -> Void in
print("1")
}
queue.excute { () -> Void in
print("2")
}
queue.excute { () -> Void in
print("3")
sleep(1)
}
queue.barrierExecute { () -> Void in
print("barrierExecute")
}
queue.excute { () -> Void in
print("4")
}
queue.excute { () -> Void in
print("5")
}
queue.excute { () -> Void in
print("6")
}
}
/**
GCDGroup的使用
*/
func groupTask() {
group = GCDGroup()
queue = GCDQueue()
queue.excute({ () -> Void in
print("1")
}, inGroup: group)
queue.excute({ () -> Void in
print("2")
}, inGroup: group)
queue.excute({ () -> Void in
print("3")
}, inGroup: group)
queue.excute({ () -> Void in
print("4")
}, inGroup: group)
queue.excute({ () -> Void in
print("5")
}, inGroup: group)
queue.excute({ () -> Void in
print("6")
}, inGroup: group)
queue.excute({ () -> Void in
print("7")
}, inGroup: group)
queue.excute({ () -> Void in
print("8")
}, inGroup: group)
queue.notify({ () -> Void in
print("都完成了")
}, inGroup: group)
}
/**
GCD信号量的使用
*/
func semaphoreTask() {
semaphore = GCDSemaphore()
queue = GCDQueue(queueType: .concurrentQueue)
queue.excute { () -> Void in
print("1")
_ = self.semaphore.signal()
}
queue.excute { () -> Void in
print("2")
_ = self.semaphore.signal()
}
queue.excute { () -> Void in
print("3")
_ = self.semaphore.signal()
}
queue.excute { () -> Void in
print("4")
_ = self.semaphore.signal()
}
queue.excute { () -> Void in
self.semaphore.wait()
self.semaphore.wait()
self.semaphore.wait()
self.semaphore.wait()
print("都完成了")
}
}
/**
GCDTimer的使用
*/
func timerTask() {
timer = GCDTimer(inQueue: GCDQueue.globalQueue)
timer.eventRepeating(interval: .seconds(2)) {
print("重复任务")
}
timer.start()
}
}
