UIScrollView pagingEnabled自定义翻页宽度

PagingEnabled只能翻过整页，下面几个简单的设置即可实现
技术点：
1. 创建一个继承UIView的视图，并设置clipsToBounds＝ YES
2. 添加一个UIscrollView控件，将其宽度设置为自定义翻页的宽度
3. 设置UIScrollview 的clipsToBounds＝ NO
4. 确保本View的宽度大于UIScrollView的宽度用于显示预览内容
5. 重写本View的hittest方法，为了确保用户滑动UIscrollview以外的空间时也可以触发UIscrollview滑动

ok！ 下面是代码，为了方便，使用图片作为显示的每一页

#define kLJItemWidth 240

@implementation MyScrollview {

UIScrollView *scrollview;
}

- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
scrollview = ({
UIScrollView *scroll = [[UIScrollView alloc] initWithFrame:CGRectMake(40, 0, kLJItemWidth, frame.size.height)];
scroll.pagingEnabled = YES;
scroll.clipsToBounds = NO;
scroll;
}) ;

[self addSubview:scrollview];
self.clipsToBounds = YES;
}

return self;
}

-(void)loadImages:(NSArray *)array{
int index = 0;
[scrollview.subviews makeObjectsPerformSelector:@selector(removeFromSuperview)];

for(NSString * name in array){
UIImageView *iv = [[UIImageView alloc] initWithImage:[UIImage imageNamed:name]];
iv.contentMode = UIViewContentModeScaleToFill;
CGRect fra = iv.frame;
fra.size.width = kLJItemWidth;
fra.origin.x = index * kLJItemWidth;
iv.frame = fra;

[scrollview addSubview:iv];
index++;
}
scrollview.contentSize = CGSizeMake(scrollview.frame.size.width*index, scrollview.frame.size.height);
}

- (UIView *)hitTest:(CGPoint)point withEvent:(UIEvent *)event
{
UIView *view = [super hitTest:point withEvent:event];
if ([view isEqual:self])
{
for (UIView *subview in scrollview.subviews)
{
CGPoint offset = CGPointMake(point.x - scrollview.frame.origin.x + scrollview.contentOffset.x - subview.frame.origin.x,
point.y - scrollview.frame.origin.y + scrollview.contentOffset.y - subview.frame.origin.y);

if ((view = [subview hitTest:offset withEvent:event]))
{
return view;
}
}
return scrollview;
}
return view;
}

@end