subview

I have to implement a UIPageViewController as a subview to my UIViewController. The UIPageViewController has some logic and other ViewControllers inside. My question is how to connect these two pieces of code below. So this is my main UIViewController code: class MyMainViewController: UIViewController { override func viewDidLoad() { super.viewDidLoad() } override func didReceiveMemoryWarning() { super.didReceiveMemoryWarning() } } and my UIPageViewController code, which implements an endless loop between ViewControllers that he contains (I copied the whole code, probably it wasn't necessary ):

I understand there is this question: Adding subview leaves gap between subview and navigation bar However, there is no answer, and I do my method a different way, so that might make it a bit different. Anyways, I as well have a gap between the navigation bar and subview when I add a subview to my navigation controller, which also has a tab bar controller. I am using storyboards. I am adding the subview using UIViewController.view type via storyboard id. My code: [self.view addSubview:[[self.storyboard instantiateViewControllerWithIdentifier:@"View"] view]]; This works, and adds the view, but

I am trying to put a custom view inside a UIAlertController . I'm running into some odd issues with the sizing of the custom view. I want the custom view to span the width of the UIAlertController , whatever that might be. I'm using CGRectGetWidth(alertController.view.bounds) to get the width of the alert controller. However, this seems instead to be returning the width of the entire view. using view.frame does not make a difference. UIAlertController *alertController = [UIAlertController alertControllerWithTitle:@"My Title" message:nil preferredStyle:UIAlertControllerStyleAlert]; UIView *view

When I reorder my UITableViewCells, the Subviews of the Cell are not visible while dragging...I get always the same result, whether I add the Subviews programmatically in a UITableViewCell Subclass or in Storyboard... Is there a possibility to see the real UITableViewCell with Subviews while dragging? Ok I found a solution by my self... For some reason the mysterious reordering animation from Apple cant capture simple UIViews, but with UIImageViews, UIButtons and UILabels as Subviews of the custom TableViewCell, the animation works like expected...creepy! 来源： https://stackoverflow.com

Here I am adding a pickerview programaticly - (void)viewDidLoad { [super viewDidLoad]; CGRect pickerFrame = CGRectMake(0,280,321,200); UIPickerView *myPickerView = [[UIPickerView alloc] init]; //Not sure if this is the proper allocation/initialization procedure //Set up the picker view as you need it //Set up the display frame myPickerView.frame = pickerFrame; //I recommend using IB just to get the proper width/height dimensions //Add the picker to the view [self.view addSubview:myPickerView]; } But now I need to actually have it display content and somehow find out when it changes and what

I'm struggling with setNeedsDisplay . I thought it was supposed to trigger calls of drawRect: for the view for which it is called and the hierarchy below that if it's within the view's bounds, but I'm not finding that to be the case. Here is my setup: From the application delegate, I create a view whose size is a square that covers essentially the whole screen real estate. This view is called TrollCalendarView . There is not much that happens with TrollCalendarView except for a rotation triggered by the compass. There are 7 subviews of TrollCalendarView called PlatformView intended to contain