ios7

问题 iOS 7 introduced a new user configuration to disable cellular data for specific apps. It can be configured in "Settings"->"Cellular" and then scrolling down. You'll find a switch for each installed app and can see how much cellular data it has consumed. How can I programmatically test if the switch is turned on for my app? Is there an API for that? Can I determine how much data my app has used over cellular? I'm not asking to get the values for all apps. I'm only interested in my apps usage.

问题 Is there a clean solution on getting a callback or event on the view controller being dismissed (popped) by an interactivePopGestureRecognizer ? To be clear I need some explicit method getting called on the top most controller (and no other) before the controller will be popped by this gesture recogniser. I do not want to get the event on the navigation controller and send the event to the appropriate controller and I do not want to use viewWillAppear or viewWillDissapear ... The closest

问题 I have pickerview in my view controller. I am displaying it by adding into subview and then changing frame of subview. When my pickerview displayed I have one button behind it. When I click on those area after dispalying pickerview still that button action is called. How to set pickerview proper? 回答1: U subclass the PickerView like below will help u to fix this issue. // // WPCustomPickerView.h // test // // Created by VASANTH K on 08/01/14. // // #import <UIKit/UIKit.h> @interface

问题 I need change the labels colors of MPMediaPickerController item, on iOS 7 , im using Xcode5 , what can i do?. My code of the creation of MPMediaPickerController is: - (IBAction)addSongs:(id)sender { MPMediaPickerController *picker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeMusic]; picker.delegate = self; picker.allowsPickingMultipleItems = YES; } I was trying with this but not works: https://gist.github.com/acidlemon/1955332 Examples: Thanks in advance. 回答1: Change your

问题 I need change the labels colors of MPMediaPickerController item, on iOS 7 , im using Xcode5 , what can i do?. My code of the creation of MPMediaPickerController is: - (IBAction)addSongs:(id)sender { MPMediaPickerController *picker = [[MPMediaPickerController alloc] initWithMediaTypes:MPMediaTypeMusic]; picker.delegate = self; picker.allowsPickingMultipleItems = YES; } I was trying with this but not works: https://gist.github.com/acidlemon/1955332 Examples: Thanks in advance. 回答1: Change your

问题 I'm trying to position a view (with an inline video) but I'm a little stuck. I've got the video working and playing well (inside the a view). I'm using storyboards. I've already set the scaling mode to MPMovieScalingModeAspectFill which gives me my great full screen cropped view. Just to clarify - I WANT it to crop, it's not a mistake, but I want it left aligned and not centred. My code is: VideoViewController.h @interface VideoViewController : UIViewController @property (strong, nonatomic)

问题 I am useing AVPlayer to play setof songs from urls. I can play songs in background mode too. But the problem is in background mode the next song is not playing. It excecute the code and but [player play]; method is not working. But If play 1 song it plays to the end though it goes to the background mode. Please help me Thanks 回答1: You should use AVQueuePlayer instead. This is working fine for me. 回答2: Well, you probably have this figured out by now, but for anyone else who might come across

问题 I am useing AVPlayer to play setof songs from urls. I can play songs in background mode too. But the problem is in background mode the next song is not playing. It excecute the code and but [player play]; method is not working. But If play 1 song it plays to the end though it goes to the background mode. Please help me Thanks 回答1: You should use AVQueuePlayer instead. This is working fine for me. 回答2: Well, you probably have this figured out by now, but for anyone else who might come across

问题 I am useing AVPlayer to play setof songs from urls. I can play songs in background mode too. But the problem is in background mode the next song is not playing. It excecute the code and but [player play]; method is not working. But If play 1 song it plays to the end though it goes to the background mode. Please help me Thanks 回答1: You should use AVQueuePlayer instead. This is working fine for me. 回答2: Well, you probably have this figured out by now, but for anyone else who might come across

问题 On IOS7.1, using SpriteKit, I've created two simple rectangular sprites with corresponding physics bodies. I set up contact and collision bit masks, and all works exactly as I expect: contacts are detected and collisions prevent the two rectangles from overlapping. But when I create an SKPhysicsJointSpring object and join the two rectangles, no contacts are ever detected even though the rectangles sometimes overlap during simulation. (The spring behavior works just as one would expect, though