id next = [self nextResponder] ; while (next != nil) { next = [next nextResponder]; if ([next isKindOfClass:[XX_ViewController class]]) { // return; } }
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id next = [self nextResponder] ; while (next != nil) { next = [next nextResponder]; if ([next isKindOfClass:[XX_ViewController class]]) { // return; } }
转载于:https://www.cnblogs.com/mapanguan/p/5853986.html