Set row height from the height of an image loaded from a plist.

Question

I have a UITableView that displays single large images in each cell. The names of the images are stored in a plist. I would like to adjust the hight of each cell to accommodate the height of the image.

Does anyone know of a way to get the height for an image and use it to set the row height?

I'm having trouble finding this one and really appreciate any help.

Answer 1

The best thing to do would probably be to pre-load the image heights into your plist. Otherwise, you're going to have to load the image (using UIImage's imageWithContentsOfFile: method), and then get its size (a property).

To set custom table row heights, implement -tableView:heightForRowAtIndexPath: in your table's delegate.

Answer 2

The property for the height of a UIImage object - let's call it image - is:

CGFloat imageHeight = image.size.height;

Answer 3

Here is the code that actually worked. I put it under the heightForRowAtIndexPath method.

UIImage *imageForHeight = [UIImage  imageWithContentsOfFile:MyImagePath];   

imageHeight = CGImageGetHeight(imageForHeight.CGImage);

return imageHeight;

Just using:

CGFloat imageHeight = image.size.height;

as Jason recommended did not work for some reason. But he got me on the right track.