UIViewController gets stuck in horizontal orientation after portrait rotation - iphone

Question

View Controller A displays View Controller B in horizontal orientation
#pragma mark Rotation Delegate Methods
// Override to allow orientations other than the default portrait orientation.
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation {
// Return YES for supported orientations.
return YES;
}
-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) {
[landscapeChartViewController.chartImageView reloadWithUrl:
[NSString stringWithFormat:#"someurl",[symbol uppercaseString]]];
NSLog(#"showing chart");
[self presentModalViewController:landscapeChartViewController animated:NO];
}
}
This works fine. View Controller B shows up in landscape orientation. Here is View Controller B's implementation:
- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return YES;
}
-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsPortrait(toInterfaceOrientation)) {
NSLog(#"dismissing chart");
[self.parentViewController dismissModalViewControllerAnimated:NO];
}
}
The problem is, when I go back into portrait orientation to show View Controller A, View Controller A is stuck in landscape orientation. How can I fix this?

Answer 1

EDIT: after reading your comment, I suggest trying to use willRotateToInterfaceOrientation:duration: instead of willAnimateRotationToInterfaceOrientation, like this:
controller A:
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsLandscape(toInterfaceOrientation)) {
[landscapeChartViewController.chartImageView reloadWithUrl:
[NSString stringWithFormat:#"someurl",[symbol uppercaseString]]];
NSLog(#"showing chart");
[self presentModalViewController:landscapeChartViewController animated:NO];
}
}
controller B:
- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsPortrait(toInterfaceOrientation)) {
NSLog(#"dismissing chart");
[self.parentViewController dismissModalViewControllerAnimated:NO];
}
}
I do more or less the same in a project of mine, only between two non modal views.

Answer 2

One option is to move your code from willAnimateRotationToInterfaceOrientation: to didRotateFromInterfaceOrientation: and use self.interfaceOrientation in place of toInterfaceOrientation.

Answer 3

View Controller B shows up in landscape orientation. Here is View Controller B's implementation:
(BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
// Return YES for supported orientations
return YES;
}
-(void)willAnimateRotationToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration {
if (UIInterfaceOrientationIsPortrait(toInterfaceOrientation)) {
NSLog(#"dismissing chart");
[self dismissModalViewControllerAnimated:NO];
}
}

Answer 4

Did you implement the function willRotateToInterfaceOrientation? Also try using the Notification centre to notify the parent view controller that your modal view controller is rotated and then simply [self dismissModalViewControllerAnimated:YES]

Answer 5

I always write my orientation logic in didRotateFromInterfaceOrientation.
Here is a part of my code it works fine....
if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPhone) {
[connectCoverLockUnlockSwitch setFrame:CGRectMake(250,6,51,31)];
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if (orientation == UIDeviceOrientationLandscapeLeft || orientation == UIDeviceOrientationLandscapeRight){
[connectCoverLockUnlockSwitch setFrame:CGRectMake(400,6,51,31)];
[self.tableView reloadData];
}
else if (orientation == UIDeviceOrientationPortraitUpsideDown || orientation == UIDeviceOrientationPortrait){
[connectCoverLockUnlockSwitch setFrame:CGRectMake(250,6,51,31)];
}
}
else if ([[UIDevice currentDevice] userInterfaceIdiom] == UIUserInterfaceIdiomPad) {
UIDeviceOrientation orientation = [[UIDevice currentDevice] orientation];
if (orientation == UIDeviceOrientationUnknown || orientation == UIDeviceOrientationFaceUp) {
//return;
}
if (orientation == UIDeviceOrientationLandscapeLeft || orientation == UIDeviceOrientationLandscapeRight) {
[connectCoverLockUnlockSwitch setFrame:CGRectMake(570,6,51,31)];
[self.tableView reloadData];
}
else if (orientation == UIDeviceOrientationPortraitUpsideDown || orientation == UIDeviceOrientationPortrait)
{
[connectCoverLockUnlockSwitch setFrame:CGRectMake(330,6,51,31)];
[self.tableView reloadData];
}
}