ios8

问题 I have created a bluetooth peripheral manager. I am adding some services to this peripheral manager using [self.peripheralManager addService:myService]. For iOS7.0 I am getting a callback for this method - (void)peripheralManager:(CBPeripheralManager *)peripheral didAddService:(CBService *)service error:(NSError *)error But for iOS8.0 I am not getting any callback for the same method and I am not able to establish a connection. Here are the steps that I followed: Create a peripheral manager

问题 I have created a bluetooth peripheral manager. I am adding some services to this peripheral manager using [self.peripheralManager addService:myService]. For iOS7.0 I am getting a callback for this method - (void)peripheralManager:(CBPeripheralManager *)peripheral didAddService:(CBService *)service error:(NSError *)error But for iOS8.0 I am not getting any callback for the same method and I am not able to establish a connection. Here are the steps that I followed: Create a peripheral manager

问题 I want to make behavior like messaging app. I have been browsing Stack Overflow for solutions for this, and indeed there are plenty: Leaving inputAccessoryView visible after keyboard is dismissed This was the one that I found. But it seems things are a little different in iOS8 . If I do the same thing in new iOS8 sdk , i get error: 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UICompatibilityInputViewController: 0x7fdcb3441b10> should have parent view controller:

问题 I want to make behavior like messaging app. I have been browsing Stack Overflow for solutions for this, and indeed there are plenty: Leaving inputAccessoryView visible after keyboard is dismissed This was the one that I found. But it seems things are a little different in iOS8 . If I do the same thing in new iOS8 sdk , i get error: 'UIViewControllerHierarchyInconsistency', reason: 'child view controller:<UICompatibilityInputViewController: 0x7fdcb3441b10> should have parent view controller:

问题 With iOS 8 Apple introduced size classes for handling layouts of an app. Instead of designing user interfaces dependent on device, screen size, and orientation, developers are encouraged to rather adapt their app's layout depending on the active size classes. That's a good move, I think. However, when it comes to the iPad there seem to be no way to distinguish the different device orientations (which provide quite different screen space and handling in my opinion). From the Human Interface

问题 I just started my project for iOS 8 and i ran in too the problem that i cant get the question to pop up for permission. I added the following to my info.plist <key>NSLocationWhenInUseUsageDescription</key> <string>The spirit of stack overflow is coders helping coders</string> <key>NSLocationAlwaysUsageDescription</key> <string>I have learned more on stack overflow than anything else</string> and this is my code : @interface ViewController () <MKMapViewDelegate> @property (nonatomic, strong)

问题 I created an AVPlayerViewController and an attached AVPlayer in the viewDidAppear method of a custom UIViewController . However, when I press the "Done" button my custom view controller is dismissed automatically. I would like to intercept this action in order to use my own unwind Segue, but I'm not sure how to do this. I've found examples for MPMoviePlayerViewController but not AVPlayerViewController . The code I found for MPMoviePlayerViewController is below: - (void)playVideo:(NSString *

问题 I created an AVPlayerViewController and an attached AVPlayer in the viewDidAppear method of a custom UIViewController . However, when I press the "Done" button my custom view controller is dismissed automatically. I would like to intercept this action in order to use my own unwind Segue, but I'm not sure how to do this. I've found examples for MPMoviePlayerViewController but not AVPlayerViewController . The code I found for MPMoviePlayerViewController is below: - (void)playVideo:(NSString *

问题 I want to build a fitness app that will upload the data to HealthKit. Is there any way to open/navigate to HealthKit from another app? 回答1: On iOS 10, the Health app URL scheme is x-apple-health . You can open it from within your own app by calling: Objective-C: [[UIApplication sharedApplication] openURL:[NSURL URLWithString:@"x-apple-health://"]]; Swift: UIApplication.shared.open(URL(string: "x-apple-health://")!) See Open Health app using url scheme | Apple Developer Forums. 回答2: iOS does

问题 I had a crash in NSXMLParser * Terminating app due to uncaught exception 'NSInternalInconsistencyException', reason: 'NSXMLParser does not support reentrant parsing.' Here is my code NSString *wrappedSnippet = [NSString stringWithFormat:@"<html>%@</html>", self.snippet]; NSXMLParser *parser = [[NSXMLParser alloc] initWithData:[wrappedSnippet dataUsingEncoding:NSUTF8StringEncoding]]; [parser setDelegate:self]; [parser parse]; app crashes on the last line. Note, that everything works perfect on