xcode9

问题 I was trying to integrate Apple's ARKit example app into my app. As ARKit is only an additional feature, so I need to support lower versions of iOS. I added @available(iOS 11.0, *) tag to all the ARKit example app classes...It almost works except this 1 error: "Overriding 'prepare' must be as available as declaration it overrides". Any idea how can I resolve this issue ? Xcode error image 回答1: What worked for me was adding the @available attribute above the method like so: @available(iOS 11.3

问题 Eventually, I will be submitting a react native app to the app store but the app will only run on iOS, not tvOS. Will I be able to delete these targets and stuff and submit the project with no problem? 回答1: Yes, it can be deleted. You wont have any problem submitting it to the app store. 来源： https://stackoverflow.com/questions/46770725/can-i-delete-the-tvos-from-react-native-project

问题 I need to change views using a Segmented Control. In the following example I have put two view containers in the same location: The second container is hidden and I will show it through code every time I use the segmented control. (Although it does not show it either.) import UIKit class ViewController: UIViewController { @IBOutlet weak var container1: UIView! @IBOutlet weak var container2: UIView! override func viewDidLoad() { super.viewDidLoad() } override func didReceiveMemoryWarning() {

问题 I need to change views using a Segmented Control. In the following example I have put two view containers in the same location: The second container is hidden and I will show it through code every time I use the segmented control. (Although it does not show it either.) import UIKit class ViewController: UIViewController { @IBOutlet weak var container1: UIView! @IBOutlet weak var container2: UIView! override func viewDidLoad() { super.viewDidLoad() } override func didReceiveMemoryWarning() {

问题 I have implemented code as per the google SDK documentation line by line in my app, but still when I click on google sign in button app shifts to new view controller with webview with blank screen. Have tried multiple solution found here : GIDSignIn white screen on iOS 91. But no lucks with resolving the problem , have attached the screen shot for getting closer look about the screen. Following are the pods that I'm using, Running XCode 9.1, iOS 10.0 and later. Kindly request someone to help.

问题 This question already has answers here : Seeing black bars at the top and bottom of the iPhone X Simulator (9 answers) Closed 2 years ago . With the release of Xcode 9, we are able to test UI of our app on iPhone X simulator. When I ran my app on iPhone X simulator, it does not occupy complete screen. There is space left on the top and bottom of the Apps View. Can anyone please tell how to remove that space, I am already using auto layouts in my app. I am attaching the screenshot of my app.

问题 How do I setup & use custom named colors in Interface Builder? 回答1: In Xcode9 you can add "New Color Set" to .xcassets files, where you can set rgba values or use IB's color picker. Then you can use that newly defined color from Interface Builder's color picker, it appears under the Named Colors section. Or you can use it from code like UIColor(named:"customColorName") . As for now, Xcode9 beta 1 does not support using string literal color names as UIColor (like it works with UIImages), but I

问题 How do I setup & use custom named colors in Interface Builder? 回答1: In Xcode9 you can add "New Color Set" to .xcassets files, where you can set rgba values or use IB's color picker. Then you can use that newly defined color from Interface Builder's color picker, it appears under the Named Colors section. Or you can use it from code like UIColor(named:"customColorName") . As for now, Xcode9 beta 1 does not support using string literal color names as UIColor (like it works with UIImages), but I

问题 How do I setup & use custom named colors in Interface Builder? 回答1: In Xcode9 you can add "New Color Set" to .xcassets files, where you can set rgba values or use IB's color picker. Then you can use that newly defined color from Interface Builder's color picker, it appears under the Named Colors section. Or you can use it from code like UIColor(named:"customColorName") . As for now, Xcode9 beta 1 does not support using string literal color names as UIColor (like it works with UIImages), but I

问题 I'm trying to use a PDF/SVG Image as the SKTexture for an SKSpriteNode. I know that this can be done for a UIImageView by ticking "Preserve Vector Data", setting Scaled to "Single Scale" and configuring the UIImageView to imageView.adjustsImageSizeForAccessibilityContentSizeCategory = true Is this possible to do when using the UIImage in an SKTexture? This would prevent the creation of @2x & @3x images. Thanks 回答1: You cannot use vector images for an SKTexture A SKTexture doesn't have a