JYCountDownView *view = [JYCountDownView loadCountDownView];
view.center = self.view.center;

NSDate *endDate = [NSDate dateWithTimeIntervalSinceNow:10];
[view countDownViewWithEndData:endDate];

// 结束的回调
view.TimerStopComplete = ^{
NSLog(@"哈哈，倒计时结束了哎