ios - subview 重叠的问题

Question

我正在尝试创建一个包含多个图像的自定义 View 。我通过以编程方式添加它们来做到这一点。问题是这些 subview 相互重叠，我找不到改变它的方法。我能看到的唯一解决方案是以编程方式为每个新图像设置框架之类的操作。如果有人能告诉我解决这个问题的最佳方法是什么，我将不胜感激。

for (id image in self.images) {
    UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
    [self.imageViews addObject:imageView];
    [self addSubview:imageView];
}

Answer 1

如果您想让您的customView像UICollectionView一样，您需要一个UIScrollView并在其中添加您的subviews。每次添加 subview 时都会更改框架位置，因此它可能是这样的:

int xPosition = 0;
int yPosition =0;
for (id image in self.images) {

    if (xPosition>self.view.frame.size.width) {
        //give size to every imageView and every time in loop change the location
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(xPosition, yPosition, 50, 50)];
        imageView.image = image;
        yPosition = yPosition + 50;
        [self.view addSubView:imageView];
    }
    else {
        UIImageView *imageView = [[UIImageView alloc] initWithFrame:CGRectMake(xPosition, yPosition, 50, 50)];
        imageView.image = image;
        xPosition = xPosition + 50;
        [self.view addSubView:imageView];

    }


}