iOS Development multithreaded Article-GCD common usage-top of the text

Original http://www.cnblogs.com/wendingding/p/3807716.html

 1//2//Yyviewcontroller.m3//Common use of 01-GCD (deferred execution)4//5//Created by Apple on 14-6-25.6//Copyright (c) 2014 itcase. All rights reserved.7//87 mImport"YYViewController.h "10@interface Yyviewcontroller ()12@end14@implementation Yyviewcontroller1617-(void) Viewdidload18 {19 [Super Viewdidload];NSLog (@"Print thread----%@ ", [Nsthread CurrentThread]);21st//Deferred execution22//First method: Delay of 3 seconds call the Run function[Self Performselector:@selector (Run) Withobject:nil Afterdelay:2.0];2425}26-(void) Run27 {NSLog (@"Deferred execution----%@ ", [Nsthread CurrentThread]);29}3031-(void) Touchesbegan: (Nsset *) touches withevent: (Uievent *) event32 {33 // execute 34 Dispatch_ in an async function queue_t queue = dispatch_queue_create ( "wendingding", 0); 35 36 Dispatch_sync (queue, ^{37 [self Performselector: @selector (test) Withobject:nil Afterdelay:1.0];< Span class= "number" >38}); 39 NSLog (@ " Async function"); 41-(void) test42 {43 NSLog (@ " Async function Deferred execution----%@", [Nsthread CurrentThread]); 45 @end             

Common uses for iOS development multithreaded-GCD-top of the text