UIScrollview content size when orientation changes

Question

I have a scrollview with pagination. In viewDidLoad i check if the current orientation is landscape then i set its contentsize\'s height 440

 if (UIDeviceOri         


        

Answer 1

1. Don't use UIDeviceOrientation. Use UIInterfaceOrientation instead. DeviceOrientation has two extra options you don't need here. (UIDeviceOrientationFaceUp and UIDeviceOrientationFaceDown)

2. Return Yes from shouldAutorotateToInterfaceOrientation

3. Now willRotateToInterfaceOrientation: duration: will be called every time you rotate your device.

4. Implement this method like this.

   -(void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
   {
   CGRect frame;
   int pageNumber = 2;
   int statusBarHeight = 20;
   
   if ((toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)) {
       frame = CGRectMake(0, 0, 480, 320 - statusBarHeight);
   } else {
       frame = CGRectMake(0, 0, 320, 480 - statusBarHeight);
   }
   
   scrollView.frame = frame;
   scrollView.contentSize = CGSizeMake(frame.size.width * 2, frame.size.height);
   } 
   

   Let,

   pageNumber = 2

   statusBarHeight = 20