Issue with subviews overlapping - ios

Question

I'm trying to create a custom view which containes several images. I do that by adding them programmatically. The problem is that those subviews overlap each other and I can't find the way to change that. The only solution I can see is doing something like setting frames for each new image programmatically. I would be grateful if someone could tell me what is the best way to solve this issue.
for (id image in self.images) {
UIImageView *imageView = [[UIImageView alloc] initWithImage:image];
[self.imageViews addObject:imageView];
[self addSubview:imageView];
}

Answer 1

If you wanna make your customView like UICollectionView you need a UIScrollView and add your subviews in it. Everytime when you add a subview change frame location so it could be something like this:
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];
}
}

Answer 2

Without using Interface Builder your only real options are to change the frame or the center.
imageView.frame = CGRectMake(x coord, y coord, width, height);
This method lets you resize and move whereas changing the center lets you do just that, move the center of the view.
or
imageView.center = CGPointMake(x coord, y coord);
Or as recommended add constraints.