ios

问题 Swift Package Manager got a new feature in Xcode 12.5: Swift Package Manager caches package dependencies on a per-user basis, which reduces the amount of network traffic and increases performance of dependency resolution for subsequent uses of the same package. If needed, you can disable cache use in xcodebuild by using the new -disablePackageRepositoryCache flag. (72204929) I would like to know where this is cached. Maybe we can use this to easily cache those dependencies in continuous

问题 I was just thinking, it is not possible at this time to change the color of the Vertical scrollbar in Apple Watch. But I just saw the App on Apple site and here is the screen shot of the app I want to change the color of the scrollbar from default to my desired color as the above picture shows green scrollbar scroller. i found no way to access it, even in WKWindowsFeatures and not accessible in storyboard. Global tint color is just for the -The title string in the status bar -The app name in

问题 I am wondering if it's possible to load a font from a file (say, internet URL) into my iOS app, before using it in my controls (UILabel, UIButton, etc). I already know the usual technique of pre-packaging it and referencing inside info.plist, but I'm looking for a less static option.... doable? Thanks! 回答1: Yes. It's absolutely possible. You need to look at CTFontManagerRegisterGraphicsFont . Here’s a usage example: NSData *inData = /* your decrypted font-file data */; CFErrorRef error;

问题 I'm trying to get a gooey effect with svg. Things are fine in chrome, but look weird on Safari & iOS. Here is the example: https://codepen.io/rubenhak/project/editor/ZoBENL How it looks on Chrome: How it looks on Safari/iOS: The problem is when the one circle is too far, too small or missing, the other circle gets bulged. None of this is an issue on chrome. Code: <svg version="1.1" xmlns="http://www.w3.org/2000/svg" xmlns:xlink="http://www.w3.org/1999/xlink" viewBox="0 0 500 200" width="500"

问题 I have problem with my React App opening in Safari and especially my private routing.Error: SyntaxError: Unexpected token 'const' I have ordinary rooting function: function App() { return ( <Router history={history}> <Switch> <Route path="/" exact component={Home} /> <Route path="/login" component={Login} /> <PrivateRoute path="/dash" component={Dashboard} /> <PrivateRoute path="/filters" component={Filters} /> <PrivateRoute path="/profile" component={Profile} /> <PrivateRoute path="/map"

问题 I have problem with my React App opening in Safari and especially my private routing.Error: SyntaxError: Unexpected token 'const' I have ordinary rooting function: function App() { return ( <Router history={history}> <Switch> <Route path="/" exact component={Home} /> <Route path="/login" component={Login} /> <PrivateRoute path="/dash" component={Dashboard} /> <PrivateRoute path="/filters" component={Filters} /> <PrivateRoute path="/profile" component={Profile} /> <PrivateRoute path="/map"

问题 I want to track the user location in background , in the purpose to show him an alert when he is close to one of his friend. So i start with CLLocationManager . As far as i know their is only one reliable way to let the app know about the location update even if the user reboot the Iphone or kill the app: startMonitoringSignificantLocationChanges . But the problem is that even inside a city with many wifi, startMonitoringSignificantLocationChanges fire the DidUpdateLocations when the user

问题 I want to track the user location in background , in the purpose to show him an alert when he is close to one of his friend. So i start with CLLocationManager . As far as i know their is only one reliable way to let the app know about the location update even if the user reboot the Iphone or kill the app: startMonitoringSignificantLocationChanges . But the problem is that even inside a city with many wifi, startMonitoringSignificantLocationChanges fire the DidUpdateLocations when the user

问题 Without using safeAreaLayoutGuide (I am targeting IOS 9+), is there any way to programmatically get the height of the "safe area" in IOS without having to create a new view (constrained to the safe area) solely for this purpose? I can't set an outlet to the safe area because it's not a UIView... or even a class of any sort. And if I simply use self.view.height in the ViewController, it's going to be too high (wrong). Is there some other way to do it? 回答1: In a UIViewController you can use the

问题 Without using safeAreaLayoutGuide (I am targeting IOS 9+), is there any way to programmatically get the height of the "safe area" in IOS without having to create a new view (constrained to the safe area) solely for this purpose? I can't set an outlet to the safe area because it's not a UIView... or even a class of any sort. And if I simply use self.view.height in the ViewController, it's going to be too high (wrong). Is there some other way to do it? 回答1: In a UIViewController you can use the