objective-c

问题 I'm trying to get the following code to work as a macOS command line tool. It is important that this not be a Cocoa app, so that is not an option. This same code works perfectly in the same project with a Cocoa App target and detects a compatible controller, but when run as a Command Line Tool target, nothing happens and the API shows no controllers connected. Obviously, some of it is contrived... it's just the simplest I could boil it down to and have some indication of things happening when

问题 I created a textField through code using the following code UITextField *txtObj=[UITextField alloc]initWithFrame:CGRectMake(88,100,80,33)]; I am getting the textfield as i planned, but the text we type in that text field seems to appear in the top area of text but not in bottom.I tried to align it but i got tired. Can anyone tell me what's the solution 回答1: it should be: txtObj.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom; This property is inherited from the UIControl

问题 I created a textField through code using the following code UITextField *txtObj=[UITextField alloc]initWithFrame:CGRectMake(88,100,80,33)]; I am getting the textfield as i planned, but the text we type in that text field seems to appear in the top area of text but not in bottom.I tried to align it but i got tired. Can anyone tell me what's the solution 回答1: it should be: txtObj.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom; This property is inherited from the UIControl

问题 I created a textField through code using the following code UITextField *txtObj=[UITextField alloc]initWithFrame:CGRectMake(88,100,80,33)]; I am getting the textfield as i planned, but the text we type in that text field seems to appear in the top area of text but not in bottom.I tried to align it but i got tired. Can anyone tell me what's the solution 回答1: it should be: txtObj.contentVerticalAlignment = UIControlContentVerticalAlignmentBottom; This property is inherited from the UIControl

问题 I need to show a window (without title bar) above third party applications without my window taking focus. I have tried using an NSPanel and setting enabling non-activating, but that didn't help. I tried orderFront:self , but that didn't help either. I always needed to add [NSApp activateIgnoringOtherApps:YES]; because the window wouldn't show otherwise. I have here a sample project for just this functionality: http://users.telenet.be/prullen/TopW2.zip UIElement is set to true in the

问题 I need to show a window (without title bar) above third party applications without my window taking focus. I have tried using an NSPanel and setting enabling non-activating, but that didn't help. I tried orderFront:self , but that didn't help either. I always needed to add [NSApp activateIgnoringOtherApps:YES]; because the window wouldn't show otherwise. I have here a sample project for just this functionality: http://users.telenet.be/prullen/TopW2.zip UIElement is set to true in the

问题 I need a way to visually represent a random web page on the internet. Let's say for example this web page. Currently, these are the standard assets I can use: Favicon : Too small, too abstract. Title : Very specific but poor visual aesthetics. URL : Nobody cares to read. Icon : Too abstract. Thumbnail : Hard to get, too ugly (many elements crammed in a small space). I need to visually represent a random website in a way that is very meaningful and inviting for others to click on it. I need

问题 I need a way to visually represent a random web page on the internet. Let's say for example this web page. Currently, these are the standard assets I can use: Favicon : Too small, too abstract. Title : Very specific but poor visual aesthetics. URL : Nobody cares to read. Icon : Too abstract. Thumbnail : Hard to get, too ugly (many elements crammed in a small space). I need to visually represent a random website in a way that is very meaningful and inviting for others to click on it. I need

问题 I have a UIPageViewController . One page has a single button, and the other page has a UITextField with a button. When the page scrolls to the view with the field, I'd like it to becomeFirstResponder and open the keyboard. Here's what happens: I call [self.locationQuery becomeFirstResponder] ViewController's viewDidAppear method. But it never opens the keyboard. I do the same in viewWillAppear , and it appears briefly, but then is quickly dismissed. If I'm on the page with the text field, and

问题 I have to use Google Map for my iPhone project and I'am using GMSPolygon to draw a polygon but How can I fill everywhere on my map except the interior of the polygon. Like the image below. Thank You. 回答1: I have played with your question. Main idea is to fill all Earth with polygon and then make holes for your particular area. Here is example code, but problem is that I can`t create polygon to cover whole Earth. First approach is to create 4 polygons for each quarter. PGeoCountry is a struct