WSDrawCircleProgress, 根据UIBezierPath和CAShapeLayer自定义倒计时进度条，适用于app启动的时候设置一个倒计时关闭启动页面。可以设置进度条颜色，填充颜色，进度条宽度以及点击事件等。
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公共方法：
//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;
使用：
- (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];
} 
