问题
I need some code on how to make a UIScrollView that contains UIImageViews lined up like the iPhone photo's app that comes with the phone.
回答1:
This is a frequently asked question around here. Several questions that might have answers on the various aspects of doing this are
- UIScrollView image/photo viewer with paging enabled and zooming
- Photos app-like gap between pages in UIScrollView with pagingEnabled
- Flicking through pages / photos with UIImageViews (similar to Facebook photos app or home screen)
- Is it Possible to Center Content in a UIScrollView Like Apple’s Photos App?
- create multiple images view like the photo app iphone sdk
The Three20 framework has a drop-in component for doing just this, as well.
回答2:
Best way to do this is probably a standard UITableView whose cells contain a row of four UIImageViews. In -tableView:cellForRowAtIndexPath:, load the four images corresponding to that row (assuming you've got them in a linear array, the image indices would be (row*4), (row*4 + 1), (row*4 + 2), and (row*4 + 3)), and apply them to the cell's image views. Make sure to use -dequeueReusableCellWithIdentifier and initWithStyle:reuseIdentifier: or your performance—specifically, the overhead of creating and destroying all the views involved—will be terrible.
来源：https://stackoverflow.com/questions/1962658/how-to-populate-a-uiscrollview-with-uiimageviews-lines-up-in-a-row