iosGCD多线程之创建多线程

喔尽量分成一小节一小节的写。这样也难让大家看的清楚些。我这里有三种创建线程的方法。代码如下

#import "ViewController.h"

@interface ViewController ()

@end

@implementation ViewController

- (void)viewDidLoad {

[super
viewDidLoad];

}

//当用户点击屏幕，执行线程

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event

{

[self
testThread];

}

-(void)testThread

{

//取到当前线程,在这里就是主线程

NSThread *curThread = [NSThread
currentThread];

NSLog(@"curThread = %@",curThread);

//    //取到主线程的方法

//    NSThread *mainThread = [NSThread mainThread];

//    NSLog(@"mainThread = %@",mainThread);

//

[self
createThread1];

}

-(void)createThread1

{

//一个NSThread对象就是一个线程

// 参数1，2 :
指定线程中由参数1调用参数2的方法

// 参数3 :
给参数2指定的方法传递实参

NSThread *thread = [[NSThread
alloc]initWithTarget:self
selector:@selector(threadMain:)
object:@"线程创建方式1"];

[thread setName:@"我叫二蛋"];

[thread start];

}

-(void)createThread2

{

[NSThread
detachNewThreadSelector:@selector(threadMain:)
toTarget:self
withObject:@"线程创建方式2"];

}

-(void)createThread3

{

[self
performSelectorInBackground:@selector(threadMain:)
withObject:@"线程创建方式3"];

}

-(void)threadMain:(id)obj

{

for (int i =
0; i<1000; i++) {

NSLog(@"i = %d,obj = %@,thread = %@",i,obj,[NSThread 
currentThread]);

}

}

当然大家还是需要多用，就像吃饭，吃的多了还能挑刺，继续下一篇，今天晚上3更。哈哈