mdflores · April 2, 2018 12:08 · Apr 2, 2018 · Apr 2, 2018 · Apr 2, 2018 · Apr 2, 2018
diff --git a/Example.swift → Sample.swift b/Example.swift → Sample.swift
diff --git a/Example.swift b/Example.swift
@@ -1,9 +1,9 @@
   let task = RevokableTask(delayInSeconds: 120) {
-      print("This task must not be executed..."
+      print("This task must not be executed...")
   }
 
   let task2 = RevokableTask(delayInSeconds: 120) {
-      print("Task is executing..."
+      print("Task is executing...")
   }
 
   task.execute()

diff --git a/Example.swift b/Example.swift
@@ -0,0 +1,11 @@
+  let task = RevokableTask(delayInSeconds: 120) {
+      print("This task must not be executed..."
+  }
+
+  let task2 = RevokableTask(delayInSeconds: 120) {
+      print("Task is executing..."
+  }
+
+  task.execute()
+  task2.execute()
+  task.revoke()
diff --git a/RevokableTask.swift b/RevokableTask.swift
@@ -0,0 +1,26 @@
+typealias TaskHandler = () -> ()
+
+class RevokableTask {
+    private(set) var isCancelled: Bool = false
+    private(set) var task: TaskHandler
+    private(set) var delayTime: DispatchTime
+    private(set) var identifier: String
+
+    init(delayInSeconds: Double, task: @escaping TaskHandler) {
+        self.task = task
+        self.delayTime = .now() + delayInSeconds
+        self.identifier = UUID().uuidString
+    }
+
+    func execute() {
+        DispatchQueue.main.asyncAfter(deadline: self.delayTime) {
+            if !self.isCancelled {
+                self.task()
+            }
+        }
+    }
+
+    func revoke() {
+        self.isCancelled = true
+    }
+}