iPhone iOS 4 AddTimeInterval已弃用

方法已重命名为 -dateByAddingTimeInterval: .

localNotif.fireDate = [now dateByAddingTimeInterval:timeInterval];

在SWIFT 2.2中:

localNotif.fireDate = now.dateByAddingTimeInterval(timeInterval)

在SWIFT 3中:

localNotif.fireDate = now.addingTimeInterval(timeInterval)
// or simply
localNotif.fireDate = now + timeInterval

试试看:

NSDate *date = [NSDate date];     // current date
NSTimeInterval delta = 60 * 1;    // one minute later
if ([date respondsToSelector:@selector(dateByAddingTimeInterval:)]) {
date = [date dateByAddingTimeInterval:delta];
}
else {
   date = [date addTimeInterval:delta];
}