scrollview上添加button 滑动botton区域无法实现scrollview滑动的解决方法

这是是主线程只能同时响应一件事件的原因，你按着button是一个事件了，再拖拽又是一个事件，所以，可以通过以下方法来解决

1.设置属性scrolls.panGestureRecognizer.delaysTouchesBegan = YES;

2.自定义Button

-(id)initWithFrame:(CGRect)frame with:(UIScrollView *)scrollview
{
    self = [super initWithFrame:frame];
    if (self)
    {
        UIPanGestureRecognizer *pan = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(pan)];
        [pan setDelegate:self];
        [self addGestureRecognizer:pan];

        [pan requireGestureRecognizerToFail:scrollview.panGestureRecognizer];
    }
    return self;
}

-(void)pan
{
    NSLog(@"asds");
}