objective-c - 上一页 下一页 导航

Question

我想通过左右滑动导航到图库中的上一张和下一张图像，但我不想要上一个下一个按钮。在搜索时，我遇到了滑动手势，这是我必须使用的还是简单的 ScrollView ？任何人都可以提供如何做到这一点的想法。有什么想法吗？

Answer 1

一个 contentSize 水平扩展的 UIScrollView 就足够了。

例如，假设您有 4 个 UIImageView 对象，它们位于 imageViewArray

for (int i = 0; i < 4; i++)
{
    UIImageView *imgView = [imageViewArray objectAtIndex:i];
    //one thing to note is while adding the image views, don't forget to change each views frame.origin.x property accordingly (in this case, each one will increase by the width of the view
    //e.g. 
    imgView.frame = CGRectMake (self.view.frame.size.width * i, 0, self.view.frame.size.width, self.view.frame.size.height);

    [yourScrollView addSubview:imgView];
}


[yourScrollView setContentSize:CGSizeMake(self.view.frame.size.width * 4, self.view.frame.size.height)]; // 4 is the number that will expand the scrollview horizontally