本文介绍了Objective C相当于javascripts的setTimeout？的处理方法，对大家解决问题具有一定的参考价值，需要的朋友们下面随着小编来一起学习吧！
问题描述
解决方案
我想知道在CocoaTouch ObjectiveC中是否有一个解决方案可以在30秒后或每30秒发生一次事件。 p>有很多选项。 最快使用的是。
I was wondering whether there is a solution to raise an event once after 30 seconds or every 30 seconds in CocoaTouch ObjectiveC.
解决方案
There are a number of options.
The quickest to use is in NSObject:
- (void)performSelector:(SEL)aSelector withObject:(id)anArgument afterDelay:(NSTimeInterval)delay
(There are a few others with slight variations.)
If you want more control or to be able to say send this message every thirty seconds you probably need NSTimer.
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