UILocalNotification的使用

来源：互联网发布：千里眼定位软件编辑：程序博客网时间：2024/05/21 19:26

UILocalNotification一般做为定时器使用，可以定时提醒，定时唤醒。

1.对象的创建

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

NSDateFormatter *formatter = [[NSDateFormatter alloc] init];

    NSString *noticeDate = @"2012-07-30 12:00:00";
   formatter.dateFormat = @"yyyy-MM-dd HH:mm";
    //设置触发时间
   notification.fireDate = [formatter dateFromString:noticeDate];
   [formatter release];

//触发频率，0表示只有一次，频率不能为自定义的

notification.repeatInterval = 0;

notification.repeatInterval = kCFCalendarUnitDay;

notification.repeatInterval = kCFCalendarUnitWeek;

//用户信息，为字典类型，内容可以自己设定，这里存放了唯一的key做为标记

        NSDictionary *dict = [NSDictionary dictionaryWithObjectsAndKeys:
                              [NSString stringWithFormat:@"%d", noticeInfo.notifyID],KEY,nil];
       [notification setUserInfo:dict];

//提醒内容

notification.alertBody = @“HELLO”;

//提醒铃音必须为默认的或声音文件

notification.soundName = UILocalNotificationDefaultSoundName;//@"ping.caf";//

2.对象的管理

//获取当前所有提醒,内容为UILocalNotification数组

[[UIApplication sharedApplication] scheduledLocalNotifications];

//添加提醒

UIApplication *app = [UIApplication sharedApplication];

[app scheduleLocalNotification:notification];

//取消提醒,遍历所有提醒，从中找到需要取消的那个

    NSArray *myArray=[[UIApplication sharedApplication] scheduledLocalNotifications];
   for (UILocalNotification *myUILocalNotification in myArray) {
       if ([[[myUILocalNotification userInfo] objectForKey:KEY] intValue] == value) {
           [[UIApplication sharedApplication] cancelLocalNotification:myUILocalNotification];
           return;
       }
   }

//取消所有提醒

UIApplication *app = [UIApplication sharedApplication];

[app cancelAllLocalNotifications];

3.提醒的处理，提醒触发时会回调appdelegate的如下方法

- (void)application:(UIApplication *)app didReceiveLocalNotification:(UILocalNotification *)notif
{
   MessageBox *messageBox = [MessageBox sharedInstance];
   [messageBox showMessageBoxWithTitle:@"本地提醒"
                               message:notif.alertBody
                               delegate:self
                      cancelButtonTitle:@"OK"
                           msgBoxType:E_TYPE_OK];
}