iOS 常驻线程写法

常驻线程

• (void)viewDidLoad
  {
  NSThread * thread = [[NSThread alloc]initWithTarget:self selector:@selector(run) object:nil];
  }

• (void)run {

  [[NSRunLoop currentRunLoop] addPort:[NSPort port] forMode:NSDefaultRunLoopMode];
  [[NSRunLoop currentRunLoop] run]

}