IT Nursery
It’s possible to add extensions to existing Swift object types using extensions, as described in the language specification. As a result, it’s possible to create extensions such as: extension...
I was using this in my iPhone app if (title == nil) { // do something } but it throws some exception, and the console shows that the title...
I’m trying to present a view controller modally, with a transparent background. My goal is to let both the presenting and presented view controllers’s view to be displayed at...
I keep getting the following error: Storyboard (<UIStoryboard: 0x7ebdd20>) doesn't contain a view controller with identifier 'drivingDetails' This is the code: - (void)tableView:(UITableView *)tableView didSelectRowAtIndexPath:(NSIndexPath *)indexPath { UIViewController *controller...
I’m working through some exercises and have got a warning that states: Implicit conversion loses integer precision: ‘NSUInteger’ (aka ‘unsigned long’) to ‘int’ #import <Foundation/Foundation.h> int main (int argc,...
How do I change time and time zone in the iPhone simulator? 12 Answers 12
I have view with a UITapGestureRecognizer. So when I tap on the view another view appears above this view. This new view has three buttons. When I now press...
In Objective-C, I would like to know what the + and - signs next to a method definition mean. - (void)loadPluginsAtPath:(NSString*)pluginPath errors:(NSArray **)errors; 4 Answers 4
I’m trying to add views in UIStackView programmatically. For now My code is: UIView *view1 = [[UIView alloc]init]; view1.backgroundColor = [UIColor blackColor]; [view1 setFrame:CGRectMake(0, 0, 100, 100)]; UIView *view2...
I want to display, above any other views, even the navigation bar, a kind of “pop-up” view that looks like this: full screen black background with a 0.5 alpha...