ios6

问题 I am working on an ios6 app in which I have to split a movie into two parts, take one part of it and then concatenate it with other movie clip. I tried ffmpeg but could not compile ffmpeg, is there any other way to do this? Can any one help me out if you have any solution to this problem Thanks in advance 回答1: you use the AVMutableComposition class. see this: How to combine video clips with different orientation using AVFoundation as well as multiple other answers here on SO that show how to

问题 I am porting my App from iOS3.2 to iOS6. On iPad, I use the SplitViewController. In the RootViewController, I have got a table view. If the user clicks on a row in the table view, I change the DetailViewController. The code doing this is: - (void)setDetailViewAuthorPage { UISplitViewController *splitViewController = (UISplitViewController *)self.parentViewController.parentViewController; UIViewController *detail = [splitViewController.viewControllers objectAtIndex:1];

问题 I have a UISegmentedControl in my ModeViewController ModeViewController.h: @property (weak, nonatomic) IBOutlet UISegmentedControl *Segment; - (IBAction)switchMode:(id)sender; ModeViewController.m: - (IBAction)switchMode:(id)sender { //I Tried this way UISegmentedControl *segmentedControl = (UISegmentedControl *) sender; _Segment.selectedSegmentIndex = segmentedControl.selectedSegmentIndex; //or this way NSInteger selectedSegment = segmentedControl.selectedSegmentIndex; [_Segment

问题 I am trying to measure time taken per GET request when downloading a file using AFNetworking. I am downloading a file repeatedly in a loop. The problem I am having is that the way I am measuring total time, it gives a much larger total time than it actually is. For example, for 50 downloads it gives 72 sec but in reality it only took around 5 sec. I also suspect 5 sec is too low for 50 downloads(the download size is 581 kb per file). How do I effectively measure time in this case? I need time

问题 i have added tab bar in app delegate. When i pushed the view from one of my view te tab bar got removed. I want that tab bar on pushed view also. - (BOOL)application:(UIApplication *)application didFinishLaunchingWithOptions:(NSDictionary *)launchOptions{ AudioViewController * audioViewController = [[AudioViewController alloc] initWithNibName:@"AudioViewController" bundle:nil]; audioViewController.title = @"audio"; audioViewController.tabBarItem.image=[UIImage imageNamed:@"audio 30x30.png"];

问题 In a .xib file how do I keep the Autolayout on for iOS 6 but off for iOS below 6. If I turn it off my .xib doesn't get the proper layout . If I turn it on my Iphone with 4.3 crashes. Any help would be appreciat it Thank you 回答1: I don't believe this is possible as autolayout changes how your application is compiled. The options I've considered for a workaround to this are: Detect the height of the display and programmatically change some of the elements (ick, but I've done this when it was

问题 Hej Folks, my apps crashes on a MKMapView under iOS 6 if I use auto layout for the callout view. With iOS 7 this works fine. - (void)mapView:(MKMapView *)mapView didSelectAnnotationView:(MKAnnotationView *)view { CustomMapAnnotation *annotation = (CustomMapAnnotation *)view.annotation; if([annotation isKindOfClass:[CustomMapAnnotation class]]) { CustomMapCalloutView *calloutView = [CustomMapCalloutView new]; calloutView.translatesAutoresizingMaskIntoConstraints = NO; calloutView.titleLabel

问题 I'm using UIWebView as a wrapper around my html5 application. Application implements a lot of video streaming - and is medium size (JS code). When I actively use it I receive a lot of errors: Jul 31 13:21:34 iPad mobile_house_arrest[483] <Error>: Max open files: 78 Jul 31 13:21:34 iPad mobile_house_arrest[485] <Error>: Max open files: 78 ... Jul 31 13:21:35 iPad mobile_house_arrest[505] <Error>: Max open files: 78 in the device's console - and it stops to respond. Meantime it works great in

问题 I'm using UIWebView as a wrapper around my html5 application. Application implements a lot of video streaming - and is medium size (JS code). When I actively use it I receive a lot of errors: Jul 31 13:21:34 iPad mobile_house_arrest[483] <Error>: Max open files: 78 Jul 31 13:21:34 iPad mobile_house_arrest[485] <Error>: Max open files: 78 ... Jul 31 13:21:35 iPad mobile_house_arrest[505] <Error>: Max open files: 78 in the device's console - and it stops to respond. Meantime it works great in

问题 I have a UITableView which is declared like this in my .h file: @interface EnterInviteCodeController : UIViewController @property (weak, nonatomic) IBOutlet UITableView *itemList; @end And then I declare it like this in my .m file #import "EnterInviteCodeController.h" @interface EnterInviteCodeController () @property (nonatomic, retain) NSArray *items_array; @end @implementation EnterInviteCodeController @synthesize itemList; // UITableView But when I try to populate the list, no items show