iPad SplitViewController Show Popover programmatically - ios

Question

I have an iPad SplitViewController application in which I hide the left pane in both portrait and landscape modes. I need to show the left pane in its popover when a certain notification is received by the application. Despite experimenting with a number of different suggested solutions I am struggling to work out how to achieve this.
I am using a MultipleMasterDetailManager implementation that includes the following code:
/* forward the message to the current detail view
* all detail views must implement UISplitViewControllerDelegate
*/
-(void)splitViewController:(UISplitViewController *)svc willHideViewController:(UIViewController *)aViewController withBarButtonItem:(UIBarButtonItem *)barButtonItem forPopoverController:(UIPopoverController *)pc
{
self.masterBarButtonItem = barButtonItem;
self.masterPopoverController = pc;
barButtonItem.title = NSLocalizedString(#"Show Sidebar", #"Show Sidebar");
[self.currentDetailController.navigationItem setLeftBarButtonItem:self.masterBarButtonItem animated:YES];
}
/* forward the message to the current detail view
* all detail views must implement UISplitViewControllerDelegate
*/
-(void)splitViewController:(UISplitViewController *)svc willShowViewController:(UIViewController *)aViewController invalidatingBarButtonItem:(UIBarButtonItem *)barButtonItem
{
//if (![self.currentDetailController isKindOfClass:[SyncSourceDetailViewController class]])
//{
self.masterBarButtonItem = nil;
self.masterPopoverController = nil;
[self.currentDetailController.navigationItem setLeftBarButtonItem:nil animated:YES];
//}
}
Similar methods exist in the detail view controllers themselves.
The method that I'm calling when the notification is received is as follows:
- (void)navigateToLatest
{
[self navigateToDocumentsTab];
[[self dataLoader] navigateToLatest]; // populates data for the left table view
UISplitViewController *splitViewController = (UISplitViewController *)self.window.rootViewController;
UIView *view = [[[[[splitViewController viewControllers] objectAtIndex:1] viewControllers] objectAtIndex:0] view];
[self.masterDetailManager.masterPopoverController presentPopoverFromRect:CGRectMake(0, 0, 100, 100) inView:view permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
}
This does not work. I've also tried using the presentPopoverFromBarButtonItem method but I cannot seem to locate the leftBarButtonItem in code.
Maybe I am going about this completely the wrong way.

Answer 1

I ended up solving this problem by setting a "showSidebar" variable in my app delegate to true in the navigateToLatest method. Then in my DetailViewController's ViewDidAppear event I check the value of this variable, if it is true then I show the sidebar using the following code:
UIPopoverController *masterPopoverController= [[theAppDelegate masterDetailManager] masterPopoverController];
[masterPopoverController presentPopoverFromBarButtonItem:[self.navigationItem leftBarButtonItem] permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];
[theAppDelegate setShowSidebar:NO];