iPhone界面方向更改未恢复为纵向

Question

So I have a view that I present modally when the interface orientation changes to landscape. However when the orientation returns to portrait and the modal view dismisses itself, the tableview from the initial view remains in landscape orientation (this table view must be only in portrait orientation)

Here is the code :

- (BOOL)shouldAutorotateToInterfaceOrientation:(UIInterfaceOrientation)interfaceOrientation
{
    return ((interfaceOrientation == UIInterfaceOrientationPortrait) || (interfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (interfaceOrientation == UIInterfaceOrientationLandscapeRight) );
}

- (void)willRotateToInterfaceOrientation:(UIInterfaceOrientation)toInterfaceOrientation duration:(NSTimeInterval)duration
{
    if ((toInterfaceOrientation == UIInterfaceOrientationLandscapeLeft) || (toInterfaceOrientation == UIInterfaceOrientationLandscapeRight)) {
        [self performSegueWithIdentifier:@"showCatChart" sender:self];
    }
    if (toInterfaceOrientation == UIInterfaceOrientationPortrait) {
        [self refreshTableView];
    }
}

I tried to refresh the tableview but that doesn't make it portrait again ... this could be from the view hierachy ... NavigationController->tableView (only portrait)->tableview->landscapeViewModalController

Answer 1

Use the following in appdelegate.

[self.window addsubview:viewcontroller];

This alone will solve your orientation problem.

Answer 2

With iOS 6, you need to implement the following:

- (BOOL)shouldAutoRotate {
    return YES;
}

- (NSUInteger)supportedInterfaceOrientations {
    return UIInterfaceOrientationMaskAll;
}

In your AppDelegate, you need to change the following:

[self.window addSubview:viewController.view];

to

[self.window setRootViewController:viewController];

Also, keep your current code if you want to support previous versions of iOS.