ios 8 以后本地通知需要注冊：

- (BOOL)application:(UIApplication*)application didFinishLaunchingWithOptions:(NSDictionary*)launchOptions {

if([[UIApplicationsharedApplication]respondsToSelector:@selector(registerForRemoteNotifications)]) {

UIUserNotificationTypetypes = (UIUserNotificationType)(UIUserNotificationTypeBadge|UIUserNotificationTypeSound|UIUserNotificationTypeAlert);

UIUserNotificationSettings* settings = [UIUserNotificationSettingssettingsForTypes:typescategories:nil];

[[UIApplicationsharedApplication]registerUserNotificationSettings:settings];

}

returnYES;

}