无限循环 图片轮播器

使用方法：（注意：如果使用autoLayout适配，需要先做完适配，再给图片数组赋值。）

YJBannerView* bannerView = [[YJBannerViewalloc]initWithFrame:CGRectMake(0,0,0,0)];
    [self.viewaddSubview:bannerView];
    [bannerView setTranslatesAutoresizingMaskIntoConstraints:NO];
    [self.viewaddConstraints:[NSLayoutConstraintconstraintsWithVisualFormat:@"V:|[bannerView(300)]->=0-|"options:0metrics:nilviews:NSDictionaryOfVariableBindings(bannerView)]];
    [self.viewaddConstraints:[NSLayoutConstraintconstraintsWithVisualFormat:@"H:|[bannerView]|"options:0metrics:nilviews:NSDictionaryOfVariableBindings(bannerView)]];

    bannerView.imageArray= imageArray;

gitHub地址：https://github.com/pilgrim1385/YJBannerView