iOS 循环线程

#import "ViewController.h"

@interface ViewController ()

@property (nonatomic,assign) CFRunLoopRef currentLoop;

@end

@implementation ViewController

- (void)viewDidLoad {

    [superviewDidLoad];

    // Do any additional setup after loading the view, typically from a nib.

    

    NSThread *thread = [[NSThreadalloc] initWithTarget:selfselector:@selector(startThread:)object:nil];

    [thread start];

}

- (void)startThread:(id)sender

{

    _currentLoop = CFRunLoopGetCurrent();//子线程的runloop引用

    

    @autoreleasepool {

        [selfhandle];

        NSLog(@"1");

        CFRunLoopRun();

        NSLog(@"234");

    }

}

-(void)handle

{

    [NSTimerscheduledTimerWithTimeInterval:0.5target:selfselector:@selector(realHandle)userInfo:nilrepeats:YES];

}

-(void)realHandle

{

    sleep(3);

    

    CFRunLoopStop(_currentLoop);

}

@end