DAReloadActivityDemo

- (void)viewDidLoad
{
    [super viewDidLoad];
    // Do any additional setup after loading the view.
    
   //设置背景色
   self.view.backgroundColor = [UIColor blackColor];
    
    //导航栏上按钮
    navigationBarItem = [[DAReloadActivityButton alloc] init];
    navigationBarItem.showsTouchWhenHighlighted = NO;
    [navigationBarItem addTarget:self action:@selector(animate:) forControlEvents:UIControlEventTouchUpInside];
    UIBarButtonItem *barButtonItem = [[UIBarButtonItem alloc] initWithCustomView:navigationBarItem];
    self.navigationItem.rightBarButtonItem = barButtonItem;
    
    //中间的按钮
    viewButton = [[DAReloadActivityButton alloc] init];
    [viewButton addTarget:self action:@selector(animate:) forControlEvents:UIControlEventTouchUpInside];
    viewButton.center = CGPointMake(160, 176);
    viewButton.autoresizingMask = (UIViewAutoresizingFlexibleTopMargin |
                                   UIViewAutoresizingFlexibleBottomMargin |
                                   UIViewAutoresizingFlexibleLeftMargin |
                                   UIViewAutoresizingFlexibleRightMargin);
    [self.view addSubview:viewButton];

}
- (void)animate:(DAReloadActivityButton *)button
{
    if(button == navigationBarItem)
    {
        [button spin];
    }
    else
    {
        if ([button isAnimating])
        {
            [button stopAnimating];
        }
        else
        {
            [button startAnimating];
        }
    }
}