UIPopoverController is not presenting controller in assigned position - ios

Question

I am trying to present a popover on clicking a button. When I tap on button, it shows popover on top of the screen and background is completely black. I have set the position and gave hard coded origin to popover but still it is going on top.
Here is the snapshot:
Here is the code I am using:
UIPopoverController *popOverController = [[UIPopoverController alloc]
initWithContentViewController:myViewController];
CGRect frame = CGRectMake(20, 30, 100, 50);
popOverController.popoverLayoutMargins = UIEdgeInsetsMake(0, frame.origin.x, 0, 0);
popOverController.delegate = self;
[popOverController setBackgroundColor:[UIColor clearColor]];
[popOverController presentPopoverFromRect:frame
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
EDIT
I have changed my code and tried this:
UIView *callOut = [[UIView alloc] initWithFrame:CGRectMake(view.frame.origin.x, view.frame.origin.y, 100, 50)];
callOut.backgroundColor = [UIColor whiteColor];
UILabel *callOutLable = [[UILabel alloc] initWithFrame:CGRectMake(callOut.frame.origin.x-5, callOut.frame.origin.y-5, 80, 40)];
[callOutLable setText:#"Callout"];
[callOut addSubview:callOutLable];
UIViewController *controller = [[UIViewController alloc] init];
controller.view = callOut;
UIPopoverController *popOverController = [[UIPopoverController alloc]
initWithContentViewController:controller];
popOverController.delegate = self;
CGRect frame = callOut.frame;
frame.size.height = 100;
frame.size.width = 100;
popOverController.popoverContentSize = CGSizeMake(100.0, 50.0);
[popOverController setBackgroundColor:[UIColor blueColor]];
[popOverController presentPopoverFromRect:frame
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
As I am creating a custom view which is really small. Now it shows the label on assigned position but still the background view is white.
Now what I am missing here? Any clue?

Answer 1

TestViewController *testViewController = [[TestViewController alloc] initWithNibName:#"TestViewController" bundle:nil];
testViewController.delegate = self;
self.userDataPopover = [[UIPopoverController alloc] initWithContentViewController:testViewController];
self.userDataPopover.popoverContentSize = CGSizeMake(320.0, 400.0);
[self.userDataPopover presentPopoverFromRect:[(UIButton *)sender frame]
inView:self.view
permittedArrowDirections:UIPopoverArrowDirectionAny
animated:YES];
See this example, you should give content size to pop over as above. But you declared directly as CGRect.