CGRect Can be simply created using an instance of a CGPoint or CGSize, thats given below. let rect = CGRect(origin: CGPoint(x: 0,y :0), size: CGSize(width: 100, height: 100)) // Or let rect = CGRect(origin: .zero, size: CGSize(width: 100, height: 100)) Or if we want to specify each value in CGFloat or Double or Int, we … Read more
You’ll need to add an UITapGestureRecogniser and assign it to the view, and then call resign first responder on the UITextField on it’s selector. The code: In viewDidLoad UITapGestureRecognizer *tap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(dismissKeyboard)]; [self.view addGestureRecognizer:tap]; In dismissKeyboard: -(void)dismissKeyboard { [aTextField resignFirstResponder]; } (Where aTextField is the textfield that is responsible for the keyboard) … Read more
Using relative paths or file: paths to refer to images does not work with UIWebView. Instead you have to load the HTML into the view with the correct baseURL: NSString *path = [[NSBundle mainBundle] bundlePath]; NSURL *baseURL = [NSURL fileURLWithPath:path]; [webView loadHTMLString:htmlString baseURL:baseURL]; You can then refer to your images like this: <img src=”https://stackoverflow.com/questions/747407/myimage.png”> (from … Read more
It turned out that my first guess using -sizeThatFits: was not completely wrong. It seems to work, but only if the frame of the webView is set to a minimal size prior to sending -sizeThatFits:. After that we can correct the wrong frame size by the fitting size. This sounds terrible but it’s actually not … Read more
Here is a solution, without handling the switch from one textField to another: override func viewDidLoad() { super.viewDidLoad() NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector(“keyboardWillShow:”), name: UIKeyboardWillShowNotification, object: nil) NSNotificationCenter.defaultCenter().addObserver(self, selector: Selector(“keyboardWillHide:”), name: UIKeyboardWillHideNotification, object: nil) } func keyboardWillShow(notification: NSNotification) { if let keyboardSize = (notification.userInfo?[UIKeyboardFrameEndUserInfoKey] as? NSValue)?.CGRectValue() { self.view.frame.origin.y -= keyboardSize.height } } func keyboardWillHide(notification: NSNotification) { self.view.frame.origin.y … Read more
I solved this by subclassing UILabel and overriding drawTextInRect: like this: – (void)drawTextInRect:(CGRect)rect { UIEdgeInsets insets = {0, 5, 0, 5}; [super drawTextInRect:UIEdgeInsetsInsetRect(rect, insets)]; } Swift 3.1: override func drawText(in rect: CGRect) { let insets = UIEdgeInsets.init(top: 0, left: 5, bottom: 0, right: 5) super.drawText(in: UIEdgeInsetsInsetRect(rect, insets)) } Swift 4.2.1: override func drawText(in rect: CGRect) … Read more
I believe the easiest way (and thread safe too) is to do: //assume that the image is loaded in landscape mode from disk UIImage * landscapeImage = [UIImage imageNamed:imgname]; UIImage * portraitImage = [[UIImage alloc] initWithCGImage: landscapeImage.CGImage scale: 1.0 orientation: UIImageOrientationRight]; Note: As Brainware said this only modifies the orientation data of the image – … Read more
I think you need a combination of the accepted answer and @fishstix’s + (UIViewController*) topMostController { UIViewController *topController = [UIApplication sharedApplication].keyWindow.rootViewController; while (topController.presentedViewController) { topController = topController.presentedViewController; } return topController; } Swift 3.0+ func topMostController() -> UIViewController? { guard let window = UIApplication.shared.keyWindow, let rootViewController = window.rootViewController else { return nil } var topController = … Read more
sizeWithFont constrainedToSize:lineBreakMode: is the method to use. An example of how to use it is below: //Calculate the expected size based on the font and linebreak mode of your label // FLT_MAX here simply means no constraint in height CGSize maximumLabelSize = CGSizeMake(296, FLT_MAX); CGSize expectedLabelSize = [yourString sizeWithFont:yourLabel.font constrainedToSize:maximumLabelSize lineBreakMode:yourLabel.lineBreakMode]; //adjust the label the … Read more
Switch from use of UIGraphicsBeginImageContext to UIGraphicsBeginImageContextWithOptions (as documented on this page). Pass 0.0 for scale (the third argument) and you’ll get a context with a scale factor equal to that of the screen. UIGraphicsBeginImageContext uses a fixed scale factor of 1.0, so you’re actually getting exactly the same image on an iPhone 4 as … Read more