ipod

问题 I want to rotate five buttons on the circumference of an circle (circle with the center (120,120), which is actually center of square view i.e. 240*240) with radius 100. IS it possible to do so, with having interaction with the buttons which are rotating and a proper look. i have tried ' x = round(cx + redious * cos(angl)); y = round(cy - redious * sin(angl)); NSString *X=[NSString stringWithFormat:@"%f",x]; [xval addObject:[NSString stringWithFormat:@"%@",X]]; NSString *Y=[NSString

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am making a Universal iOS Application which needs to access the camera and the camera roll. How would i go about this? I have no code to show yet because the app is mainly based around this. 回答1: This answer relevant on physical device ONLY! Access Camera: - (void)takePhoto { UIImagePickerController *picker =

问题 Closed. This question is off-topic. It is not currently accepting answers. Want to improve this question? Update the question so it's on-topic for Stack Overflow. Closed 6 years ago . I am making a Universal iOS Application which needs to access the camera and the camera roll. How would i go about this? I have no code to show yet because the app is mainly based around this. 回答1: This answer relevant on physical device ONLY! Access Camera: - (void)takePhoto { UIImagePickerController *picker =

问题 How access iPod Library in my iPhone app, like to the user listem music when is playing... like in the gameloft games, or the slide show from the Photos.app ? 回答1: Look at MPMusicPlayerController. I read it can access the iPod library. I never used it, and I don't know if it can help you... 回答2: - (void)addMusicBtnAction{ MPMediaPickerController *mediaPicker = [[MPMediaPickerController alloc] initWithMediaTypes: MPMediaTypeAnyAudio]; mediaPicker.delegate = self; //mediaPicker.prompt = @

问题 In my app I used the code below with a timer of interval equal to 1.0f/30.0f which meant that it is called 30 times per second to call incrementSpeed . I notice in the log file that the value of moduloResult is equal to '0' for a second and incrementSpeed is called 30 times every 5 seconds, but I want it to call it just 1 time for every 5 seconds. - (void)move:(NSTimer *)theTimer { // ... CGFloat moduloResult = (float)((int)time % (int)5); NSLog(@"mod = %f",moduloResult); if (!moduloResult) {

问题 I am building an application for iPod. When running it, the native iPod music app should continue play in background, but this is not happening. I think it might have something to do with the sound that it is played by my app. For playing a short sound at a certain point, I am using AVAudioPlayer. The code looks like this: NSString *path = [[NSBundle mainBundle] pathForResource:@"sound" ofType:@"mp3"]; NSLog(@"%@", path); player = [[AVAudioPlayer alloc] initWithData:[NSData

问题 If you have any insight on this, it would also be nice to know whether there's a big latency between connections. 回答1: The Bluetooth protocol specifies that connections are point-to-point (hence the term "pairing"), but different profiles can be used concurrently with different stations. Each profile only supports one connection at a time. You can have a stereo headset connection with your car and a data connection with your laptop at the same time, but not multiple data connections.

问题 My app uses MPMusicPlayerController.systemMusicPlayer() to play audio which works well. The user is able to set a custom currentPlaybackRate . This works as expected. If the user presses an action on the lock screen (the MPRemoteCommandCenter ), the currentPlaybackRate is reset to 1. This is because events are sent directly to the system music player, not the app controller. To set the currentPlaybackRate to the proper value, I tried to override MPRemoteCommandCenter events: override func

问题 I'm an iPhone/iPod-touch newbie, and would like to write an iPhone application utilizing the built-in ANT wireless radio. As I found out both the iPhone and iPod Touch have an ANT wireless module, that is used in the Nike+iPod Sport Kit to connect the Nike sensor with the iPhone/iPod. After some googleing, I didn't find much (one article was interesting, but not what I'm looking for). So my questions: Is it possible to access the built-in ANT Wireless device in iPhone/iPod Touch? Is it

问题 does any of you have example code (or a link to it) of how to retrieve all music albums or artist from the iPod media library? Thanks in advance! 回答1: Use a MPMediaQuery: MPMediaQuery *allAlbumsQuery = [MPMediaQuery albumsQuery]; NSArray *allAlbumsArray = [allAlbumsQuery collections]; The allItems array does now contain MPMediaItemCollections, grouping is done by album. Now you can walk through the arrays. for (MPMediaItemCollection *collection in allAlbumsArray) { MPMediaItem *item =