UIPopoverController: Why my popover doesn't appears where i want to?

5
votes

Simple: A view, i present a UIPopoverController in a CGRect using presentPopoverFromRect... and neither the arrow or the popover frame appear even near to the coordinates i asked for in the rect i passed into. Any clues? I've been trying to figure out this by myself but am giving up. Here is the code:

if(!myContentController){
    myContentController = [[MyContentController alloc] initWithNibName:myNibName bundle:[NSBundle mainBundle]];
    // This works pretty well. actually when i show the popover
    // i see everything inside as it's supposed to.
}
if(!popover){
   popover = [[UIPopoverController alloc] initWithContentViewController:myContentController];
}
else{
    [popover setContentController:myContentController];
}
popover.delegate = self;
CGPoint touchPointInView = [self touchPoint];//This is working fine too.I've been checking with NSLog.
popover.ContentSize = myPopoverSize;//In this case {320,480}
 [popover presentPopoverFromRect:CGRectMake(touchPoint.x,touchPoint.y,myPopoverSize.width,myPopverSize.height)
                          inView:self.view
        permittedArrowDirections:UIPopoverArrowDirectionAny
                        animated:YES];

What happens next? the popover doesn't shows where it should be. If i pass {0,0} it shows in the middle of the screen as if the view size were (768,512). I checked all the view dimensions and they are all ok, frame,bounds, etc... . Does anyone knows what am i doing wrong?

2
iphoneiosipaduiviewuipopovercontroller
could you post related code ? – Jhaliya - Praveen Sharma
@Jhaliya sorry i will do it soon.But is the default precedure, even in somwhere else in the code i use the same popover to display something and it works. Maybe its related to that. – jsan
OK, make sure you are passing the correct view to presentPopoverFromRect .. – Jhaliya - Praveen Sharma
@Jhaliya, yes, i am, but i thnk the problem is that i am using the same popover i displayed in another place with another contentviewController to diplay this new viewcontroller i want. – jsan

2 Answers

14
votes

The CGRect you give to presentPopoverFromRect is the rect that it will display the popover next to (not in). Depending on the location of the rect, the popover will appear on an appropriate side of the specified rect.

If you want the popover to appear at a specific point, give it a rect with the origin as the point and the size as 1,1. So the CGRectMake in the presentPopoverFromRect line should be:

CGRectMake(touchPoint.x,touchPoint.y,1,1)

Also make sure that the touchPoint is relative to the inView (self.view in your case).


By the way, there are a few other errors in the code (probably just typos in the question):

  • setContentController should be setContentViewController
  • popover.ContentSize should be popover.popoverContentSize
  • myPopverSize.height should be myPopoverSize.height (but this will be replaced by 1)
1
votes

In my case the reason of this problem was following. It is also possible, that your view is a tableView. So, when you scroll it and try to show UIPopover in a rect in that tableView, it may not be shown. I used this: 

[_popoverController presentPopoverFromBarButtonItem:self.navigationItem.rightBarButtonItem permittedArrowDirections:UIPopoverArrowDirectionAny animated:YES];