我创建了一个NSInvocationOpertion对象,如下所示
NSString *myString = @"Jai Hanuman";
NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(taskMethod) object:myString];
NSOperationQueue *operatioQueue = [[NSOperationQueue alloc] init];
[operatioQueue addOperation:operation];
有人可以告诉我如何在taskMethod中访问myString对象吗?可能吗?
- (void)taskMethod{
NSLog(@"Oh! Invocation's working buck");
}
最佳答案
您可以尝试以下方法:
将您的方法更改为:
- (void)taskMethod:(NSString *) message{
NSLog(@"Oh! Invocation's working buck");
message=//your string object;
}
和
NSInvocationOperation *operation = [[NSInvocationOperation alloc] initWithTarget:self selector:@selector(taskMethod:) object:myString];