It's certainly possible to develop on a Windows machine, in fact, my first application was exclusively developed on the old Dell Precision I had at the time :)
There are three routes;
- Install OSx86 (aka iATKOS / Kalyway) on a second partition/disk and dual boot.
- Run Mac OS X Server under VMWare (Mac OS X 10.7 (Lion) onwards, read the update below).
- Use Delphi XE4 and the macincloud service. This is a commercial toolset, but the component and lib support is growing.
The first route requires modifying (or using a pre-modified) image of Leopard that can be installed on a regular PC. This is not as hard as you would think, although your success/effort ratio will depend upon how closely the hardware in your PC matches that in Mac hardware - e.g. if you're running a Core 2 Duo on an Intel Motherboard, with an NVidia graphics card you are laughing. If you're running an AMD machine or something without SSE3 it gets a little more involved.
If you purchase (or already own) a version of Leopard then this is a gray area since the Leopard EULA states you may only run it on an "Apple Labeled" machine. As many point out if you stick an Apple sticker on your PC you're probably covered.
The second option is more costly. The EULA for the workstation version of Leopard prevents it from being run under emulation and as a result, there's no support in VMWare for this. Leopard server, however, CAN be run under emulation and can be used for desktop purposes. Leopard server and VMWare are expensive, however.
If you're interested in option 1) I would suggest starting at Insanelymac and reading the OSx86 sections.
I do think you should consider whether the time you will invest is going to be worth the money you will save though. It was for me because I enjoy tinkering with this type of stuff and I started during the early iPhone betas, months before their App Store became available.
Alternatively, you could pick up a low-spec Mac Mini from eBay. You don't need much horsepower to run the SDK and you can always sell it on later if you decide to stop development or buy a better Mac.
Update: You cannot create a Mac OS X Client virtual machine for OS X 10.6 and earlier. Apple does not allow these Client OSes to be virtualized. With Mac OS X 10.7 (Lion) onwards, Apple has changed its licensing agreement in regards to virtualization. Source: VMWare KnowledgeBase
All you have to do is set the selection style on the UITableViewCell
instance using either:
Objective-C:
cell.selectionStyle = UITableViewCellSelectionStyleNone;
or
[cell setSelectionStyle:UITableViewCellSelectionStyleNone];
Swift 2:
cell.selectionStyle = UITableViewCellSelectionStyle.None
Swift 3 and 4.x:
cell.selectionStyle = .none
Further, make sure you either don't implement -tableView:didSelectRowAtIndexPath:
in your table view delegate or explicitly exclude the cells you want to have no action if you do implement it.
More info here and here
Best Answer
Here you go. Complete working example. Tweak should be loaded in
mediaserverd
daemon. It will record every phone call in/var/mobile/Media/DCIM/result.m4a
. Audio file has two channels. Left is microphone, right is speaker. On iPhone 4S call is recorded only when the speaker is turned on. On iPhone 5, 5C and 5S call is recorded either way. There might be small hiccups when switching to/from speaker but recording will continue.A few words about what's going on.
AudioUnitProcess
function is used for processing audio streams in order to apply some effects, mix, convert etc. We are hookingAudioUnitProcess
in order to access phone call's audio streams. While phone call is active these streams are being processed in various ways.We are listening for CoreTelephony notifications in order to get phone call status changes. When we receive audio samples we need to determine where they come from - microphone or speaker. This is done using
componentSubType
field inAudioComponentDescription
structure. Now, you might think, why don't we storeAudioUnit
objects so that we don't need to checkcomponentSubType
every time. I did that but it will break everything when you switch speaker on/off on iPhone 5 becauseAudioUnit
objects will change, they are recreated. So, now we open audio files (one for microphone and one for speaker) and write samples in them, simple as that. When phone call ends we will receive appropriate CoreTelephony notification and close the files. We have two separate files with audio from microphone and speaker that we need to merge. This is whatvoid Convert()
is for. It's pretty simple if you know the API. I don't think I need to explain it, comments are enough.About locks. There are many threads in
mediaserverd
. Audio processing and CoreTelephony notifications are on different threads so we need some kind synchronization. I chose spin locks because they are fast and because the chance of lock contention is small in our case. On iPhone 4S and even iPhone 5 all the work inAudioUnitProcess
should be done as fast as possible otherwise you will hear hiccups from device speaker which obviously not good.