Question

我使用以下代码行来获取本地通知。

Class cls = NSClassFromString(@"UILocalNotification");
if (cls != nil) {

    UILocalNotification *notif = [[cls alloc] init];
    notif.fireDate = itemDate;
    notif.timeZone = [NSTimeZone defaultTimeZone];

    NSMutableArray *newArray=[[self appDelegate].defaultsvalue objectForKey:@"ArrayMessage"];

    //int index = arc4random() % [newArray count];
    notif.alertBody =[newArray objectAtIndex:arc4random() % [newArray count]];

    notif.alertAction = @"Show me";
    notif.soundName = UILocalNotificationDefaultSoundName;
    notif.applicationIconBadgeNumber = 1;

    notif.repeatInterval = NSDayCalendarUnit;

    NSDictionary *userDict = [NSDictionary dictionaryWithObject:[newArray objectAtIndex:arc4random() % [newArray count]]
                                                         forKey:@"kRemindMeNotificationDataKey"];
    notif.userInfo = userDict;

    [[UIApplication sharedApplication] scheduleLocalNotification:notif];
}

从上面的代码“newArray”是NSMutable Array，在其中存储了100条消息。现在我想每天早上8点从该阵列随机通知消息。

从上面的代码我每天都得到同样的信息。我想要来自该数组的随机消息。

先谢谢。！

Answer 1

尝试这样做，你必须创建多个通知＆＃34;对象＆＃34;

    NSInteger intervals = 0;
    for (int i =0; i<60; i++) {
        // creating notification interval
        // where 60 = seconds, so add your seconds here
        intervals = intervals + 60;
        NSDate *newDate = [NSDate dateWithTimeIntervalSinceNow:intervals];
        Class cls = NSClassFromString(NSStringFromClass([UILocalNotification class]));
        if (cls != nil) {
            UILocalNotification *notification = [[cls alloc] init];
            notification.fireDate = newDate;
            notification.timeZone = [NSTimeZone localTimeZone];
            notification.alertAction = @"Clear";

            //if you want to repeat same notification with some time interavals 
            notification.repeatInterval = kCFCalendarUnitSecond;

            //notification with sound
            notification.soundName = UILocalNotificationDefaultSoundName;

            //notification with vibrate
            AudioServicesPlayAlertSound(kSystemSoundID_Vibrate);

            if (array.count>0) {
                NSInteger ran = arc4random() % array.count;
                notification.alertBody = [self randomMessage:ran];
                NSDictionary *userDict = [NSDictionary dictionaryWithObject:@"ANYIDENTIFIER" forKey:kRemindMeNotificationDataKey];
                notification.userInfo = userDict;
            }

            [[UIApplication sharedApplication] scheduleLocalNotification:notification];
        }
    }

使用UILocalNotification从Array获取随机消息的问题

1 个答案: