Set Badge Notification Number on App Icon (iOS)

badge.m

- (void)application:(UIApplication *)application didReceiveRemoteNotification:    (NSDictionary *)userInfo {

NSLog(@"userInfo:%@",userInfo);

    badge_value+=[[[userInfo objectForKey:@"aps"] objectForKey:@"badge"]intValue];
    NSLog(@"Total badge Value:%d",badge_value);

for (id key in userInfo) {
    NSLog(@"key: %@, value: %@", key, [userInfo objectForKey:key]);
}
[UIApplication sharedApplication].applicationIconBadgeNumber = badge_value;

// To decrease
[UIApplication sharedApplication].applicationIconBadgeNumber = badge_value - 1;

}

// Unread notifications in Notification Center
NSDictionary *userInfo = [responseObject objectForKey:@"unread_notifications"]; 
[[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(newNotification:) name:@"unread_notifications" object:nil];

-(void)newNotification:(NSNotification *) notification{ 
    NSDictionary *userInfo = notification.userInfo; 
    if ([[NSString stringWithFormat:@"%@",userInfo] isEqualToString:@"0"]) { 
        } else {
            NSString * badge = [NSString stringWithFormat:@"%@",userInfo]; 
            [UIApplication sharedApplication].applicationIconBadgeNumber = badge.intValue; 
        }
    }