ipod

AudioFileOpenURL ipod library

放肆的年华 提交于 2019-12-07 10:03:25
问题 I want to play music from iPod library using AudioFileOpenURL or ExtAudioFileOpenURL . CFURLRef fileURL = [mediaItem valueForProperty:MPMediaItemPropertyAssetURL]; AudioFileOpenURL(fileURL,a,b,&id); //or ExtAudioFileOpenURL But it doesn't work! How can I deal with it?Thank you! 回答1: This isn't going to work because MPMediaItem asset URLs are only valid within AV Foundation. You can use that asset URL to open an AVURLAsset, get an AVAssetReader, etc., but you can't open it using any CoreAudio

Detect color of iPhone / iPod [duplicate]

笑着哭i 提交于 2019-12-07 07:20:50
问题 This question already has answers here : Closed 6 years ago . Possible Duplicate: Detecting Color of iPhone/iPod touch? Is it at all possible to detect the color of an iPhone / iPod - either natively or in the mobile browser? I'm working with a designer who would love to make a web app respond to the color of the device. 回答1: I don't think this is possible. The internal hardware (the "motherboard" keeping all the components together and the components themselves) is manufactured without any

iOS4 calling ImageNamed: still leak or cause memory issue?

一世执手 提交于 2019-12-06 13:49:16
问题 So apparently, my app crashes on ipod 2nd generation due to low memory issue. What I do was calling image on each view within scrollView + pageControl when user scrolls. And app crashed when it reached a particular point after got memory warning. I tried to free up view when I got warning but it still caused crash. I googled about ImageNamed: and apparently there was issue within this api call, but most article said it was fixed in recent iOS version. I fixed this problem with calling image

MPMediaLibraryDidChangeNotification called twice?

强颜欢笑 提交于 2019-12-05 19:08:31
My app uses the iPodMusicPlayer and, when suspended, the user might go out and make changes in Apple's Music App, for example creating or modifying a Playlist, then return to my App. I receive the expected MPMediaLibraryDidChangeNotification, which is fine and I deal with it updating my references etc., but I receive a second MPMediaLibraryDidChangeNotification about 2 minutes later which I really don't need. Any ideas on avoiding this second notification? [[NSNotificationCenter defaultCenter] addObserver:self selector:@selector(notification_iPodLibraryDidChange:) name:

AudioFileOpenURL ipod library

孤者浪人 提交于 2019-12-05 16:37:49
I want to play music from iPod library using AudioFileOpenURL or ExtAudioFileOpenURL . CFURLRef fileURL = [mediaItem valueForProperty:MPMediaItemPropertyAssetURL]; AudioFileOpenURL(fileURL,a,b,&id); //or ExtAudioFileOpenURL But it doesn't work! How can I deal with it?Thank you! This isn't going to work because MPMediaItem asset URLs are only valid within AV Foundation. You can use that asset URL to open an AVURLAsset, get an AVAssetReader, etc., but you can't open it using any CoreAudio interfaces. Check out the AV Foundation programming guide for more info - in particular, you'll want to

MPMediaPickerController orientation on iPad

£可爱£侵袭症+ 提交于 2019-12-05 05:59:32
How can I set correct orientation of MPMediaPickerController ? I've return YES in shouldAutorotateToInterfaceOrientation, but i have bad frame for Landscape (if show MPMediaPickerController in Portrait first, and conversely). I've rotating my device chaotically and sometime frame set to correct himself! I've find the method to set frame by rotating - need rotate to 180 degreess. For example, if you have good frame in Portrait, when you rotate to Landscape - you have bad frame (from Portatait), but if you rotate to other landscape (to 180 degreess), then frame set to Landscape... Why ? How can

Apple Ipod and C#

≯℡__Kan透↙ 提交于 2019-12-05 05:19:09
问题 What would be the best way to read ipod songs with C#. I am thinking of doing a interface to the ipod as a test :) Thanks 回答1: This question came up in a google search, but the first reasonable answer I found took a while longer: SharePod has a .Net (2.0) library for iPod access, and apparently supports all the latest iPods and iPhones (I have not personally tested it): http://www.getsharepod.com/fordevelopers/ It's free for non-commercial use, and seems pretty cheap for licensed use ($99 at

Programmatically interact with attached iOS/iPods in OSX 10.6

喜你入骨 提交于 2019-12-05 00:32:59
问题 I am trying to develop a simple menu bar application that would let me visualize the charging status of my attached iPhone/iPad without having to launch iTunes. After a long search, I am unable to conclude if this is a possibility with the Snow Leopard APIs. My search has led me to a service running at boot time called com.apple.ipodserver, but I am unable to find any public API surrounding it. Is my idea implementable? 回答1: There are several utilities for iphone on MAC and Windows , but most

iOS4 calling ImageNamed: still leak or cause memory issue?

空扰寡人 提交于 2019-12-04 19:57:08
So apparently, my app crashes on ipod 2nd generation due to low memory issue. What I do was calling image on each view within scrollView + pageControl when user scrolls. And app crashed when it reached a particular point after got memory warning. I tried to free up view when I got warning but it still caused crash. I googled about ImageNamed: and apparently there was issue within this api call, but most article said it was fixed in recent iOS version. I fixed this problem with calling image imageWithContentOfFile instead imageNamed, but I'm wondering if ImageNamed still causes memory leak or

Access to the ANT Wireless and GPS receiver modules in iPhone/iPod Touch

夙愿已清 提交于 2019-12-04 18:56:25
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 possible to access the built-in GPS module in iPhone? Are there some APIs or SDKs that provide access to the