object-c 队列

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[operationQueue addOperation:[AsyncOperation operationWithString:imageStr view:self order:i]]; //调用

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@interface AsyncOperation : NSOperation

-(id)initWithString:(NSString *)imgStr view:(YHNavImageView *)view order:(NSInteger)order;

+(id)operationWithString:(NSString *)imgStr view:(YHNavImageView *)view order:(NSInteger)order;

@end

@implementation AsyncOperation

-(id)init

{

[self release];

[NSException raise:NSInternalInconsistencyException format:@"%@: must be initialized with a layer (use -initWithLayer:)", NSStringFromClass([self class])];

return nil;

}

-(id)initWithString:(NSString *)imgStr view:(YHNavImageView *)view order:(NSInteger)order {

self = [super init];

if(self != nil)

{

 //队列中要干的事儿     

         

}

return self;

}

+(id)operationWithString:(NSString *)imgStr view:(YHNavImageView *)view order:(NSInteger)order  {

return [[[self alloc] initWithString:imgStr view:view order:order] autorelease];

}

-(void)dealloc {

[super dealloc];

}

@end

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转载于:https://my.oschina.net/ahuaahua/blog/33659