ipod

I have written the following UIDevice category based on different sources. I've upgraded the platformCode method so it's less low-level than can be seen. This works perfectly, but the platformCode method is low level. Do you know if this kind of call can be replaced with Cocoa Touch code? Here's the relevant code: UIDevice_enhanced.h @interface UIDevice (Enhanced) typedef enum { kUnknownPlatform = 0, kiPhone1G, kiPhone3G, kiPhone3GS, kiPhone4, kiPhone4Verizon, kiPhone4S, kiPodTouch1G, kiPodTouch2G, kiPodTouch3G, kiPodTouch4G, kiPad, kiPad2Wifi, kiPad2GSM, kiPad2CMDA, kSimulator } PlatformType;

I've spent two days on this and have gotten nowhere. I'm trying to use [MPMusicPlayerController applicationMusicPlayer] to play audio chosen from the user's iPod library and have it run in the background as well as support remote events. Now getting the music actually playing is the easy part. Get the instance, pick the songs, assign the music queue and play. Done and done. BUT... a) I can't get it to play in the background, and b) even when in the foreground I can't get the remote control events to work at all! And before you ask, yes, I have set the plist entries, the audio session category,

I'm totally new to iOS programing (I'm more an Android guy..) and have to build an application dealing with audio DSP. (I know it's not the easiest way to approach iOS dev ;) ) The app needs to be able to accept inputs both from : 1- built-in microphone 2- iPod library Then filters may be applied to the input sound and the resulting is to be outputed to : 1- Speaker 2- Record to a file My question is the following : Is an AUGraph necessary in order to be able for example to apply multiple filters to the input or can these different effects be applied by processing the samples with different

What is the advantage of the using Reachability over the code below? I feel that Reachability has a huge amount of code, but if it's better in any way, then I'd use that instead. NSString *connectionString = [[NSString alloc] initWithContentsOfURL:[NSURL URLWithString:@"http://www.google.com"]]; if ([connectionString length] == 0) { //No connection } Now granted, if Google ever went down then this wouldn't work. But there's literally no chance of that happening. What do you think? Thanks! This is actually quite a good question - so good that I actually use it in iOS developer interviews when

Is it possible to play video from the iPod library in iOS4, or is it still restricted to audio? I can't find any definite answers, but the SDK doesn't seem to allow video. No you cannot do that. Check the iPod Library Access Programming Guide, it says: iPod library access applies only to audio-based media items. You cannot play video podcasts, movies, or television shows from the iPod library. 来源： https://stackoverflow.com/questions/3781620/can-you-play-video-from-the-ipod-library

i am using MusicPlayerController object in my app to play music. i know that its possible to keep playing my app music when it's terminate on the iphone ipod app. how can i do it? There are a few things involved. You have to choose between two music players, the application music player and the iPod music player: + (MPMusicPlayerController *)applicationMusicPlayer; + (MPMusicPlayerController *)iPodMusicPlayer; If you choose the iPodMusicPlayer, music will continue to play in the background and the user can stop it using the iPod (or Music) app. If you choose the applicationMusicPlayer, by

There are many articles on how to detect if a microphone is connected to an iPod touch G2 via AudioSessionGetProperty / kAudioSessionProperty_AudioInputAvailable , but I have not seen any articles related to detection of headphones connected to an iPod touch G1. To review: iPod touch G2 hardware differs from iPod touch G1 hardware in the following ways: iPod touch G2 has an internal speaker iPod touch G2 is able to use microphone off of headphone port I have an app that needs to play sound to be useful and I want to be nice and have a detector that shows that the app is useful once they

Which apple mobile devices have a magnetometer? I thought that the iPod touch had one but I think I am mistaken. Do all devices with GPS have a magnetometer? Do all devices with a magnetometer have a GPS? The iPhone 3GS and iPhone 4. An easy way to check is with this class method . I wrote a little app and ran it on a few devices I had lying around, and it looks like only iPhone 3GS+ (so iPhone 4 as well) have one right now, although I've seen sketchy evidence that pieces of the Compass app exist in touches. 来源： https://stackoverflow.com/questions/4227272/apple-devices-with-magnetometer