UILocalNotification with various alert body

问题

How Can I repeat UILocalNotification with various alert body?

For example:

UILocalNotification *notif = [[UILocalNotification alloc] init]; 
notif.alertBody = @"Hello";
notif.repeatInterval = NSDayCalendarUnit;
[[UIApplication sharedApplication] scheduleLocalNotification:notif];

By using this code the notification will be repeated daily, how can I repeat the notification daily with different alert body each day?

Thanks.

回答1:

You could implement the application:didReceiveLocalNotification method in the AppDelegate, and increase a 'day counter' variable. Then, schedule a new UILocalNotification with an array of strings for your notification's alert body. Use the day counter to get an updated string. Here's some example code:

In your AppDelegate.h:

@property (assign, nonatomic) int dayCount;

In your AppDelegate.m:

- (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions
{
    // Override point for customization after application launch.
    [self scheduleLocalNotification];
    return YES;
}

-(void)application:(UIApplication *)application didReceiveLocalNotification:(UILocalNotification *)notification{
    self.dayCount++;
    [self scheduleLocalNotification];
}

-(void)scheduleLocalNotification{
    NSArray *notifTextArray = [NSArray arrayWithObjects:@"Hello", @"Welcome", @"Hi there", nil];

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

    if(self.dayCount < notifTextArray.count){
        notif.alertBody = [notifTextArray objectAtIndex:self.dayCount];
    }
    else{
        self.dayCount = 0;
        notif.alertBody = [notifTextArray objectAtIndex:self.dayCount];
    }

    notif.fireDate = [NSDate dateWithTimeIntervalSinceNow:86400]; //86400 seconds in a day
    [[UIApplication sharedApplication] scheduleLocalNotification:notif];
}

Just an option, but hope it helps.

回答2:

Once you have scheduled a local notification, you cannot change any properties of the notification and the alert body as-well.

You may have to cancel the older notification and reschedule a new one to achieve this.

来源：https://stackoverflow.com/questions/18792997/uilocalnotification-with-various-alert-body

标签

ios

objective-c

uilocalnotification