iOS启动页倒计时跳过按钮功能

//set track color @property (nonatomic,strong)UIColor *trackColor; //set progress color @property (nonatomic,strong)UIColor *progressColor; //set track background color @property (nonatomic,strong)UIColor *fillColor; //set progress line width @property (nonatomic,assign)CGFloat lineWidth; //set progress duration @property (nonatomic,assign)CGFloat animationDuration; /**  * set complete callback  *  * @param lineWidth line width  * @param block  block  * @param duration time  */ - (void)startAnimationDuration:(CGFloat)duration withBlock:(DrawCircleProgressBlock )block; 

- (void)viewDidLoad {  [super viewDidLoad];  [self.view addSubview:self.imageView];  DrawCircleProgressButton *drawCircleView = [[DrawCircleProgressButton alloc]initWithFrame:CGRectMake(self.view.frame.size.width - 55, 30, 40, 40)];  drawCircleView.lineWidth = 2;  [drawCircleView setTitle:@"跳过" forState:UIControlStateNormal];  [drawCircleView setTitleColor:[UIColor whiteColor] forState:UIControlStateNormal];  drawCircleView.titleLabel.font = [UIFont systemFontOfSize:14];  [drawCircleView addTarget:self action:@selector(removeProgress) forControlEvents:UIControlEventTouchUpInside];  /**   * progress 完成时候的回调   */  __weak ViewController *weakSelf = self;  [drawCircleView startAnimationDuration:5 withBlock:^{   [weakSelf removeProgress];  }];  [self.view addSubview:drawCircleView]; }