如何通过 NSThread 传递参数

Question

我以前从未使用过 NSThread，我想知道是否可以向其中传递参数，如果可以，如何传递？例如：

NSObject *phrase = @"I JUST MADE IT THROUGH TO THE THREAD METHOD!"; 

[NSThread detachNewThreadSelector:@selector (run_thread)
                         toTarget:self 
                       withObject:phrase];

那么

---

-(void)run_thread
{
NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 

NSLog(@"RECORD FILE PATH ---->   %@", phrase);

[pool drain];

 }

我想你明白我正在尝试做什么。有什么建议吗？

Answer 1

你就快到了：

NSObject *phrase = @"I JUST MADE IT THROUGH TO THE THREAD METHOD!"; 

[NSThread detachNewThreadSelector:@selector (run_thread:) // have to add colon
                     toTarget:self 
                   withObject:phrase];

-(void)run_thread:(NSObject* )phrase // change method signature to support taking an NSObject 
{
  NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 

  NSLog(@"RECORD FILE PATH ---->   %@", phrase);

  [pool drain];

}

Answer 2

[NSThread detachNewThreadSelector:@selector(run_thread:)
                         toTarget:self 
                       withObject:phrase];

-(void)run_thread:(NSString *)phrase
{
    NSAutoreleasePool *pool = [[NSAutoreleasePool alloc] init]; 

    NSLog(@"RECORD FILE PATH ---->   %@", phrase);

    [pool drain];
}