//判断
if ([([UIApplication sharedApplication]currentUserNotificationSettings].types!=UIUserNotificationTypeNone) {
UILocalNotification *ln =[[UILocalNotification alloc]init];//创建通知对象
ln.alertBody= @"重大新闻”;//内容
ln.applicationIconBadgeNumber= 5;//个数
ln.fireDate =[NSDate dateWithTimeIntervalSinceNow:6.0];//第一次发生时间
// ln.repeatInterval=4;
ln.timeZone= [NSTimeZone defaultTimeZone];
//调用通知
[[UIApplication sharedApplication] scheduleLocalNotification:ln];
}else{
[[UIApplication sharedApplication]registerUserNotificationSettings:[UIUserNotificationSettings settingsForTypes:UIUserNotificationTypeAlert|UIUserNotificationTypeBadge|UIUserNotificationTypeSound categories:nil]];
}