Question

Basically on the click of a cell, I want the table to animate up (shortening it’s height) and a ‘detail’ view to slide up taking up the space now available..

I have the tableView shortening properly, but I am having problems getting the second view to slide in..

CGRect frame = self.tableview.frame; // (drilldown table)
if(frame.size.height > 600)
{
    CGRect detailFrame = StudyDetailView.view.frame; // (detailed view I want to slide up
    detailFrame.origin.y = (frame.size.height-200);
    self.tableview.autoresizingMask = UIViewAutoresizingNone;
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:.3];
    StudyDetailView.view.frame = detailFrame; // <-- this does not work.
    self.tableview.frame = CGRectMake(0,0,frame.size.width,frame.size.height-200); // <-- this works.

    [UIView commitAnimations];


}

Update
My fix:

StudyListDetailController.m

- (void)viewDidLoad {
    CGRect frame = self.view.frame;
    self.view.frame =  CGRectMake(0,900,frame.size.width,frame.size.height);
    [super viewDidLoad];
}

In my table row select…

if(frame.size.height > 600)
{

    CGRect detailFrame = StudyDetailView.view.frame;

    self.tableview.autoresizingMask = UIViewAutoresizingNone;
    detailFrame.origin.y = (frame.size.height-200);
    detailFrame.size.height = 200;
    [self.view addSubview:StudyDetailView.view];
    [UIView beginAnimations:nil context:nil];
    [UIView setAnimationDuration:.3];

    self.tableview.frame = CGRectMake(0,0,frame.size.width,frame.size.height-200);
    StudyDetailView.view.frame = detailFrame;
    [UIView commitAnimations];

}

Answer 1

where do you initially set StudyDetailView.view.frame? It looks like you’ve only set the Y value.
Try doing

NSLog(NSStringFromCGRect(detailFrame));

and see what shows up in the console, I’m guessing only the y value will be set, and the width and height are just 0.