UIPopOverScreen troubles - iphone

Question

Recently I have taken interest in making a popover screen. In my Navigation bar I made this button and when I click on it it should make a popover screen appear.
So I started searching for a usefull tutorial and yet I found mostly tutorials made with interface builder, which is not what I want. So I started experimenting on my own.
This is my result:
First I set the necessary properties in the MainVC.h
Also mind the
#import <UIKit/UIKit.h>
#import "ThePopOverVC.h"
#interface PopoverPrototypeViewController : UIViewController <UIPopoverControllerDelegate>
{
ThePopOverVC *popover;
UIPopoverController *popoverController;
UIButton *popoverButton;
}
#property (nonatomic,retain) ThePopOverVC *popover;
#property (nonatomic,retain) UIPopoverController *popoverController;
#property (nonatomic,retain) UIButton *popoverButton;
- (void)popoverActivation;
#end
Then I set up my view in the MainVC.m
It prepares the view for the popoverscreen when pressing a button.
#import "PopoverPrototypeViewController.h"
#implementation PopoverPrototypeViewController
#synthesize popover;
#synthesize popoverController;
#synthesize popoverButton;
- (void)didReceiveMemoryWarning
{
[super didReceiveMemoryWarning];
// Release any cached data, images, etc that aren't in use.
}
#pragma mark - View lifecycle
- (void)loadView
{
[super loadView];
self.view.backgroundColor = [UIColor blueColor];
popover = [[ThePopOverVC alloc] init];
popoverController = [[UIPopoverController alloc] initWithContentViewController:popover];
popoverController.popoverContentSize = CGSizeMake(300, 300);
popoverController.delegate = self;
self.popoverButton = [[UIButton alloc] initWithFrame:CGRectMake(100, 100, 400, 100)];
self.popoverButton.backgroundColor = [UIColor lightGrayColor];
[self.popoverButton setTitle:#"Click me!" forState:UIControlStateNormal];
[self.popoverButton addTarget:self action:#selector(popoverActivation) forControlEvents:UIControlEventTouchUpInside];
[self.view addSubview:self.popoverButton];
}
- (void)popoverActivation
{
if ([self.popoverController isPopoverVisible]) {
[self.popoverController dismissPopoverAnimated:YES];
} else {
UIBarButtonItem *settingsBarButton = [[UIBarButtonItem alloc] initWithCustomView:self.popoverButton];
[self.popoverController presentPopoverFromBarButtonItem:settingsBarButton permittedArrowDirections:UIPopoverArrowDirectionUp animated:YES];
}
}
- (BOOL)popoverControllerShouldDismissPopover:(UIPopoverController *)popoverController
{
return YES;
}
- (void)popoverControllerDidDismissPopover:(UIPopoverController *)popoverController
{
NSLog(#"something");
}
Ok, the MainVC should be setup, now it's time to show the popoverContentViewController.
For my experiment I just want it to be an empty view with just a different backgroundColor.
So the popoverVC.h is empty:
#import <UIKit/UIKit.h>
#interface ThePopOverVC : UIViewController
#end
My popoverVC.m is equally empty except for the backgroundColor change:
#import "ThePopOverVC.h"
#implementation ThePopOverVC
- (void)loadView
{
[super loadView];
self.view.backgroundColor = [UIColor yellowColor];
}
You would say this shouldn't be too hard. But yet I'm experiencing problems loading the project.
I'm getting the following warning: warning: Unable to restore previously selected frame.
Well here comes the question:
What have I overlooked? What have I done wrong and how can I make this simple prototype work?
//---EDIT---//
OK, I'm a bloody idiot for overlooking this one.
[super loadView];
The super loadView wasn't called and gave me this simple problem.
I edited the code so it works properly now.
Use this as a tutorial on how to make UIPopOverScreens if you will (or whatever).
Ref: http://www.raywenderlich.com/1056/ipad-for-iphone-developers-101-uipopovercontroller-tutorial

Answer 1

[super loadView];
Was missing from ThePopOverVC.m
Pretty silly to overlook.. but yeah, it works now.