Lock orientation regardless of rotation

Question

I have a UITabBar application with embedded UINavigation for some of the views. On one specific navigationview I am displaying graphs/charts and it wou

Answer 1

Firstly I am using iOS 6 SDK.

I am using a custom TabBar Controller. and controlling the orientation of that TabBar Controller by the below set of codes

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    // You do not need this method if you are not supporting earlier iOS Versions
    return [self.selectedViewController shouldAutorotateToInterfaceOrientation:interfaceOrientation];
}

- (NSUInteger)supportedInterfaceOrientations
{
    return [self.selectedViewController supportedInterfaceOrientations];
}

- (BOOL)shouldAutorotate
{
    return YES;
}

And the view controller should contain

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)orientation {
    return UIInterfaceOrientationIsLandscape(orientation);
}

This is what I did and was able to lock a view to landscape or portrait (in my case). To force may be you can put a alert view stating the user to turn the device to landscape and show him the graph. Just a suggestion.