用到UIScrollview的翻頁效果時，有時需要顯示一部分左右的內容，但是UIScrollView的PagingEnabled只能翻過整頁，下面幾個簡單的設置即可實現

技術點：

1. 創建一個繼承UIView的視圖，并設置clipsToBounds＝ YES

2. 添加一個UIscrollView控件，將其寬度設置為自定義翻頁的寬度

3. 設置UIScrollview 的clipsToBounds＝ NO

4. 確保本View的寬度大于UIScrollView的寬度用于顯示預覽內容

5. 重寫本View的hittest方法，為了確保用戶滑動UIscrollview以外的空間時也可以觸發UIscrollview滑動

ok！ 下面是代碼，為了方便，使用圖片作為顯示的每一頁

#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

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轉載于:https://www.cnblogs.com/v-jing/p/3509219.html

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