ios7

问题 Our app is using device WiFiMAC address to uniquely identify a device. As per the Apple doumentation we shall start using identifierForVendor property of UIDevice but my app is strongly dependent on WiFi MAC address. At run time, app users look into device settings and fetch the WiFi Mac address and manually put them in some tool to enable some feature on server side. Has anyone retrieved the device WiFi MAC address with iOS 7? 回答1: This was intentionally removed from the SDK in iOS 7. You

问题 I am making changes to my app to support 3.5″ display. Currently it is supporting 4″ display. The screen layout looks like this. How to add following constraint in storyboard ? (I have enabled auto layout option in storyboard.) How to set button1 & button2 width to the half of super view's width ? and both should intersect at the middle of the superview's width. UIImage #1 should be placed at the middle of the superview's width. 回答1: 1 : Buttons Didn't figure to do everything in interface

问题 I've been using [UIApplication sharedApplication].statusBarHidden = YES; to hide the status bar when users enter specific UIViewControllers in iOS 6 and it worked great. In iOS 7 however it still shows a translucent overlay. 回答1: EDITED::: that is new updated answer : Do in plist file "View controller-based status bar appearance" to NO and write code [UIApplication sharedApplication].statusBarHidden = YES; in appdelegate 回答2: What worked for me was setting "Status bar is initially hidden" to

问题 I'm currently developing an application for iPhone with iOS7, only. From what I read, for iPhone with iOS7, there is no support for older devices than iPhone4. If that's the case, when it comes to images, all I need is retina images (@2x). Can I submit to the App Store, an app with only retina images, since the app's minimal requirement is retina devices ? Thank you. 回答1: Possible duplicate of Can I dump my non-Retina Images for a iOS7 only app? Anyway, as long as I know you don't need @2x

问题 My app is a UITabBarController based app with 3 children vc. The status bar is overlapping with my viewcontrollers. I have tried everything I have found in SO: I tried adding this to my AppDelegate: //Offset downwards to make room for status bar self.window.bounds = CGRectMake(0, -20, self.window.frame.size.width, self.window.frame.size.height); It worked because it moved the entire UITabBarController down by 20. But this resulted in the tabs being cut off at the bottom by -20. So Im thinking

问题 let downloadGroup = dispatch_group_create() var images = [UIImage]() var errors = [NSError]() dispatch_apply(UInt(urls.count), dispatch_get_global_queue(QOS_CLASS_USER_INITIATED, 0)) { (i) in dispatch_group_enter(downloadGroup) SimpleCache.sharedInstance.getImage(urls[Int(i)], completion: { (image, error) -> () in if let fullImage = image { images.append(fullImage) } else { if let err = error { DLog(err.description) errors.append(err) } } dispatch_group_leave(downloadGroup); }) } dispatch

问题 I have to check the correct current time if user sets "Set Automatically" off. Is there any way to access the status of "Set Automatically" setting status so that I cam prompt user to turn it on. OR Another approach I can follow I can fetch the time from GPS(location) but the below code always gives the local time in case of user selects "Set Automatically" off. CLLocation* location = [[CLLocation alloc] initWithLatitude:(CLLocationDegrees) 0.0 longitude:(CLLocationDegrees) 0.0]; NSDate* now

问题 i need to set frame for my navigation bar button in swift 2.0 i tried this code self.navigationController!.navigationBar.drawRect(CGRectMake(0, 0, 30, 30)) but it won't work thanks in advance 回答1: // Swift 3 let backButton = UIButton(frame: CGRect(x: 0, y: 0, width: 30, height: 30)) backButton.setBackgroundImage(UIImage(named: "img"), for: .normal) backButton.addTarget(self, action: "action:", for: .touchUpInside) self.navigationItem.leftBarButtonItem = UIBarButtonItem(customView: backButton)

问题 I'm on iOS 7 and I have the following problem. I can't find a clue after some research curiously... I have a map view annotation with left and right accessories but transparent in the middle (default iOS 7 behavior I think). How to change the default translucent/transparent background to any other color I want? 回答1: Is your MKMapView inside a UITableViewCell ? I had a similar issue, where the UITableViewCellSelectionStyle of the cell caused this visual glitch. Setting it to

问题 I use an UIRefreshControl like it (without an UITableViewController) : UIRefreshControl *refreshControl = [UIRefreshControl new]; [refreshControl addTarget:self action:@selector(viewDidBeginRefreshing:) forControlEvents:UIControlEventValueChanged]; [self.table addSubview:refreshControl]; Problem is the refresh wheel is positioned below the UINavigationController's translucent bar (ios7). There is only a few topic on this problem on StackOverflow. And they didn't bring any valuable solution to