Lower Half of Landscape Screen Unresponsive to Touch

Question

Ahoy!
I'm writing a Landscape Orientation only app that doesn't display a status bar. I started by using the Utility Application template in XCode.
I've edited my info.plist and added the following entries...
{quote}
<key>UIStatusBarHidden</key>
<true/>
<key>UIInterfaceOrientation</key>
<string>UIInterfaceOrientationLandscapeRight</string>
{quote}
I've gone through and set Status Bar to none for FlipsideView.xib, MainView.xib and the Root View Controller in MainWindow.xib
I've set the following code in RootViewController.m, MainViewController.m and FlipsideViewController.m..
{quote}
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceO rientation {
// Return YES for supported orientations
if (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) return YES;
if (interfaceOrientation == UIInterfaceOrientationLandscapeRight) return YES;
return NO;
{quote}
And I've modified AppDelegate.m to change the orientation...
{quote}
- (void)applicationDidFinishLaunching:(UIApplication *)application {
// Override point for customization after app launch
\[\[rootViewController view\] setHidden:YES\];
\[window addSubview:\[rootViewController view\]\];
\[application setStatusBarOrientation:UIInterfaceOrientationLandscapeRight animated:NO\];
\[\[UIDevice currentDevice\] setOrientation:UIInterfaceOrientationLandscapeRight\];
\[window makeKeyAndVisible\];
// Delay to allow views to rotate to ensure a smooth transition
NSTimer *timer;
timer = \[NSTimer scheduledTimerWithTimeInterval:0.35
target:self
selector:@selector(showView)
userInfo:nil
repeats:NO\];
- (void)showView {
\[\[rootViewController view\] setHidden:NO\];
{quote}
Everything is working great. The views change nicely and will orientate in either direction.
My problem is that when I started laying out my User Interface, I discovered that MainView was somehow preventing me from clicking any buttons on the bottom half of the screen. I could place and click buttons above 160 px. I could click just the portion of the buttons above 160 px. But any button, or part of button, that exists below 160 px will not allow me to click it.
I've tried disabling/enabling the button.
I've tried hiding/unhiding the button.
I've tried moving the buttons up programatically, clicking them, moving them down programatically. No luck.
I'm beating my head against the wall.
It's like the bottom half of the screen is not available for touch events.
The Flipside View works perfect.
If I start with the Flipside view instead of MainView, FlipsideView will have the same problem and MainView works perfect.
I can put other controls in the lower half, like a label, and manipulate them without a problem.
I know the MainView starts off portrait and then flips to landscape. That's why I hid it in the Delegate Class. Since MainView is the default view that is loaded, and the problem transitions to FlipsideView if I switch that, I believe the problem must be in the initialization of the default view.
For the life of me I can't find it though.
Any help would be greatly appreciated!
Bill

Answer 1

I have made a test project that illustrates this problem.
The link to download it is...
http://www.box.net/shared/dysb76lqtj
I set the RootViewController view to green, MainViewController view to purple and FlipsideViewController to maroon. I made just the changes I outlined above.
I then added a High and Low button to MainViewController and FlipsideViewController.
As you can see, when the MainViewController view is loaded, the background stops halfway down the screen but the buttons remain correctly placed.
Any ideas would be greatly welcomed!
Thanks!