I have a mac with OSX version 10.5.6 and I'm wondering about the limits of developing iPhone apps with it.
Since I need to install an old SDK, will the apps I make still be possible to use on new iPhones? What kind of features will I miss out on, by using an old SDK? Are there any major changes in the new version of Xcode that will make it reduntant or unprogressive for me to learn an old SDK?
You will not be able to submit an app to the App Store unless it has been compiled against the latest iOS SDK (iOS 5.1 at this time, iOS 6 soon.) This does not mean it needs to use the features in the latest SDK, but you must have used that SDK when compiling. Apple will automatically reject apps compiled against an older SDK.
If you don't care about the App Store and just want to play around, you can do so with an old SDK but it might not allow you to attach the debugger to a device running a newer version of iOS.
Since I need to install an old SDK, will the apps I make still be
possible to use on new iPhones?
The code is for the most part is still the same. Your apps will work on all iPhones, iPads, and iPod touches.
What kind of features will I miss out on, by using an old SDK?
Faster Compiling, Code suggestions, and a few other things that won't prevent you from making iOS apps in the future.
Are there any major changes in the new version of Xcode that will make it reduntant or unprogressive for me to learn an old SDK?
No
Good luck!
Related
I have released an App in the App Store with target platform 5.1. The app also was developed using SDK 5.1. My customer phoned me and said this is crap because als the jailbroken phones aren't able to download the app yet - because there is currently no jailbroken version for 5.1.
What do I have to do? I'm coming from Android - therefore I want to be really sure what I am doing when applying an App update to ensure that it is also available for 5.0 users.
I also use a Library Project - which also uses SDK 5.1 as shown in the screenshot below.
I would be really glad about some instructions how to reduce the required version for the app and if there are some compatibility troubles/problems occurring to my code when I do this.
You should change the deployment target, in the summary tab of the target, as shown in the image:
And call your customer and tell him there is already Jailbreak for 5.1 ;)
Release App version 1.1 with deployment Target OS as 5.0 or what ever else version you want to include ...
Just found this now while researching another question, so I'm sure this has already been handled, but here's my $0.02, eight years later....
You provided a working app to the App Store. All apps on the App Store are guaranteed to work on compatible iPhones that have not been jailbroken.
If your user is doing non-sanctioned things with his iPhone, it's not really your concern. There were plenty of big-name apps which had the same problem as yours: people couldn't use the latest version because a jailbreak wasn't yet available. They had to wait until such a jailbreak was out. That's the risk you take with using a jailbreak.
The difference here is that if FaceBook or WhatsApp or whatever big-name app changed its target SDK to an iOS version that did not yet have a jailbreak, users couldn't call Zuckerberg on the phone to complain or threaten. You, as an independent developer, got the phone call.
It's a balancing act. You want to use the latest, greatest features of the iOS version, but existing users might not have the latest, greatest OS. So you have to decide what's more important: new features or supporting existing users.
As Apple adds new APIs and new methods to APIs with every new iOS update or release and given that nowadays you can't even test on an iOS 3.x simulator, is there any way to test your iPhone app in older SDKs or to know what SDK level you are using through it?
Downgrading to an old Xcode with a 3.x simulator is not an option and, well, there are tons of methods introduced in, say, 4.2.
Has any one come up with a lib, script, tool, anything, that analyzes the code to show API usage?
The way most iOS developers do this is to keep around an old 1st or 2nd generation iPod Touch (or other old iPhone device) that hasn't been updated past the oldest iPhone OS version that they plan on supporting with their Deployment Target setting.
A cheap used iOS device, even with a scratched/cracked display or mostly dead battery, from eBay (et.al. or some neighbor or nephew who upgraded), might work.
Testing on an old device is actually a better and more accurate check than just testing with the Simulator, as the Simulator for various SDK versions supported APIs that the device at that OS level did not.
Trying to keep up with the curve. I'm reading almost too much and is sending me in a tail spin. Is there a one stop link which will tell me what my target should be to run my app on all platforms based on what frameworks I have included? I make heavy use of Mapkit, and want to include iAds. My current apps seem dead on 3G.
Does Apple force you to support only the latest iOS? I have no problem with that, but not sure if someone who has and ancient 3G, how do I tell them, NO I don't support your phone, please upgrade?
Set your project's base SDK to the latest version of the SDK. Set the deployment target to the oldest version of the OS that you plan to support. You can use features introduced in versions later than your deployment target, but you'll need to check for them before you use them, else your app will crash.
Read the release notes for each version of the OS to get a good idea of what features were introduced when. In fact, make it a habit to read the release notes thoroughly each time a new version comes out.
iOS 4.2 runs pretty well on an iPhone 3G, so there's no need to drop support for the 3G anytime soon. If your apps currently don't work on the 3G, fire up your debugger and figure out why. What version of iOS are you running on that device? Where does it crash? This is typical debugging stuff.
i am new to iphone apps development.i want to develop Iphone applicaiton.which version i need to use and that should support run older and new version of Iphone.
which device is best for testing apps like 2g,3g,3gs
Thanks in advance
Aswan
It depends on the application. I am focused on games, so my target devices are 3G and iPod Touch (not the new one). Something older may be quite too restrictive for some ideas... At some point I will switch to the new 'retina display' models. But not now: the cake is still way too big with the not-so-old models!
Nevertheless, Apple forces you to use the latest XCode (4.1 devices). However, while you are forced to use the latest SDK, you may still target older devices (3.0 in our case, for example). You may go back to 2.1.1 devices, if I remember well.
Good luck!
I want to test my application on older iOS versions. I am using weak linking for new frameworks and branches in the code for different OS version. But after some complaints from users running iOS 3.1.2, I need to do some testing myself. I don't have a separate iPhone for every iOS version.
So, how can I run an older version of iOS in the iPhone simulator?
That's a really basic question and there might be a duplicate somewhere, but I wasn't able to find it. Any help is much appreciated.
If you can download (or have a backup of) the older SDK that relates to the older OS you want to run on, I believe the general advice is to install the other SDK to a different path (say, Developer/olderSDK and this way you can have both SDK's (and simulators) installed side by side.