iphone - UILocalNotification 每分钟重复一次

Question

我想每分钟发送一次本地通知，这是我正在使用的代码:

[[UIApplication sharedApplication] cancelAllLocalNotifications];

    UILocalNotification *notif = [[UILocalNotification alloc] init];

    if (notif == nil) {
        return;
    }

    notif.timeZone = [NSTimeZone defaultTimeZone];

    notif.alertBody = @"Test notification!";
    notif.alertAction = @"View";
    notif.soundName = UILocalNotificationDefaultSoundName;
    notif.applicationIconBadgeNumber += 1;

    notif.repeatInterval = NSMinuteCalendarUnit;

    [[UIApplication sharedApplication] scheduleLocalNotification:notif];

通知只开始一次，永远不会重复。我哪里弄错了？

Answer 1

您必须为您的通知设置一个fireDate，否则它不会重复而是立即触发。

The fire date is interpreted according to the value specified for timeZone. If the specified value is nil or is a date in the past, the notification is delivered immediately.