小编Fab*_*uer的帖子

我必须在限制中停止呼叫.

NSTimeInterval delay = 2;
for (NSString* sentence in sentences) {
   [sentenceHandler performSelector:@selector(parseSentence:)
                         withObject:sentence
                         afterDelay:delay];
   delay += 2;
}

如何从上面停止这个电话？我试过了:

[NSObject cancelPreviousPerformRequestsWithTarget:sentenceHandler 
    selector:@selector(parseSentence) object:nil];

但没有效果？它是否只退出循环中的多个调用之一？