Is there a way to run maxima on iOS?
I know running another binary is grounds for rejection, so is there a way to not have to start another binary? Or is there another library that can do what maxima can do? I need factor(), expand(), diff() and ratsimp(). Or is this impossible?
I have not tried to do this with the exception of doing a little googling, because I am not a super advanced at iOS Development, so I have no idea how to go about this.
Thanks
There are 3 considerations:
- you can include "open source" software provided you don't charge for it
- "reduce" is built in to another app; as both rely on LISP for the actual work, I would think that you can if they can
- there is (or was) a rule that you cannot include your own interpreter, but if the app I mentioned above can do it then you probably can on the basis that the user cannot run LISP directly but only through your interface
Of course, these are my personal opinions and comments - you really need to try it out with Apple.
Susan
Related
Is it possible to create an API inside an iOS app to let 3rd party developers create app add-on that are downloadable for users inside the app?
I could not find any ressources for this topic online.
I think that's going to go against the app store guidelines if your intention is that the 3rd party developers write code, which will be downloaded and executed.
There's something of a grey area between legitimate uses and illegitimate uses of downloaded code:
Legitimate Example 1: Something like Hopscotch where children are creating simple fun shared games. These can be considered user generated content.
Legitimate Example 2: A game which is driven by scripts allows for the run-time downloading of patches to fix bugs in the scripts or even to add new levels. I believe such usages have been rejected occasionally in the past, but are generally accepted these days.
The relevant guideline from the guidelines is (emphasis mine):
2.5.2 Apps should be self-contained in their bundles, and may not read or write data outside the designated container area, nor may they download, install, or execute code, including other iOS, watchOS, Mac OS X, or tvOS apps.
And the all-encompassing:
We will reject apps for any content or behavior that we believe is over the line. What line, you ask? Well, as a Supreme Court Justice once said, "I'll know it when I see it". And we think that you will also know it when you cross it.
If your idea is to create some sort of app-store within your app-store app, then I would abandon it immediately, because that's going to be way over Apple's line.
That said, you haven't given much detail about your app, so I might have made wrong assumptions about where you're thinking of going.
Does Apple allow the usage of sysctl.h within iOS applications?
PS: App Scanner, a third party tool that checks code for possible private-API usage seems to think it's okay.
Note:
There is one more question like this : How can I know if I'm using private frameworks?
With the usual disclaimer that nobody can tell you what a reviewer will do, I can say for sure that there are apps in the store that use sysctl functions.
(Minor point: Simply including a header isn't a problem since symbols there shouldn't be visible in your app unless they're used...it's the things you use that might get flagged rather than what's included.)
from one of the stackexchange questions Here,its proved that we can decompile the iphone application to its source,Now here comes the question how can we protect the ipa file/iphone application from cracking to its source?i have already verified this answers
here 1
method 2
but sad thing is it fails to protect the code,any updates to prevent app to source code
You can't really.
The iOS runtime on the device needs to be able to interpret the binary, so the binary has to be there, unencrypted and ready to run.
You could obfuscate it, by running it through a tool that scrambles method names, property names and so on. .NET and Java have tools that do this but I'm not aware of any for Objective-C, so I think you're on your own.
(Tools like anticrack, the one you linked to, will work for a short time until someone comes up with a way to reverse what anticrack does - but because your app eventually has to be there in a format the runtime is ready to run, all you can do is make it more difficult. It's like the age-old arms race of pirates vs protection mechanism in desktop applications).
This has been much discussed. Generally, you make more money spending time improving or promoting your app, then spending time trying to prevent it from being cracked in any way.
I am just starting iOS development. I read some tutorials, watched stuff on iTunes U and wrote some sample code myself. Now I want to take the next step. I want to learn about best practices for iOS development in XCode.
Are there any well written and well organized iOS projects that one could take a look at?
(As I see it, iOS is not exactly the place for open source enthusiasts, however.)
Thanks
Mike.
I agree with several of the other answers that state that looking at many, many projects for mini-examples of what you want to do in your own app is the way to go.
However, you asked for an example of an app demonstrating best practices.
You could do worse than to read Matt Gallagher's blog, Cocoa with Love from beginning to end. However, the app example you asked for is right here.
Not only will it show a variety of techniques, some novel design and best-practices, but also he points out where he feels that he might have done something better.
It's a great read.
I would suggest the following process: (it worked for me)
Think of an advanced app. that you eventually want to be proficient enough to create.
Make a top-down problem-solving tree containing the necessary skills required to build your final app.
Use this tree to divide your final app. into 'sub apps'. Start at the bottom of the tree, find a tutorial specifically for that skill, and make a "Hello World" app. that uses that skill.
Keep progressing upwards, creating 'sub apps' as you go.
When you are finally ready to make your final app. (it will take a while), you will have a good handle on how iOS development works. It will also be a great test of your knowledge via direct application!
Getting the hang of iOS development can be tricky; it really does require a top-down approach, and every online resource I've found takes a linear one. The only way that I think a linear approach to learning iOS development would be manageable, is to take it one small task at a time.
As for specific resources, I always google "[what I want to do] iPhone SDK" and browse the tutorials and forum posts that come up.
Here are some open source iOS apps. However, they aren't very well documented and are also very advanced.
TKAWebView - A subclass of UIWebView that handles authentication and downloading.
Welcome to your Mac - An iOS app. to VNC into a PC/Mac and do some cool stuff.
InAppSettingsKit - A settings screen creator for your apps.
Good luck!
The people behind the Parse platform have made two complete projects.
For each project there is the complete source code, a tutorial and the resulting app is also available from the AppStore.
Anywall: https://parse.com/anywall
Anypic: https://parse.com/anypic
They both rely heavily on the Parse platform as the data source, but you still get a feel for an iOS project.
Molecules is a great open-source app that uses 3D OpenGL to render complex models of molecules.
Just keep coding my friend. You'll learn over a period of time. The best way to get dirty in a mud fight is to jump into it... Weird analogy but you get the point.
Maybe someday, we all will learn from you then !
Like you said there many and many source codes are available internet, but most are incomplete.
I found some Open source codes of REAL application currently available through Apple app store are given here
Free iPhone App Source Codes of real apps
and also, you can find many answers here on stackoverflow question - Are there any Open-source iPhone applications around?
You can download free IOS sample projects from http://devcodemarket.com
I realize this is an old thread but I've also been looking for good objective-c code examples recently and I just realized that TextEdit's source code is available at the Mac Developer Library webpage.
Also, here are some popular objective-c libraries that have caught my attention:
CocoaPods
AFNetworking.
you can also go through UICatalog from Developers Library and download the sample code. just google it and you will find a project containing all basics of iphone.
I don't think there is any perfect project that can demonstrate all the qualities of great code. Developers have stylistic preferences and may make mistakes. That said, you should look at a lot of different projects and try to look at the conventions used.
I'd suggest starting on GitHub. Besides for seeing code, you'll see what libraries are out there, which may help further your projects later on. Here's the Objective-C page on GitHub.
(Also, I (GitHub link) think you're wrong about iOS devs not being in favor open source. Yes, there's money to be made, but you can't sell a CSV paring library on the App Store as is.)
Have a look at https://github.com/mozilla/firefox-ios
That is Firefox for iOS, written in Swift.
Cocoacontrols has a wide range of controls written using Objective-C & Swift.
I believe these days, this is one of the most famous website for iOS Developers.
But, before you jump onto this, you have to learn Objective-C & Swift very well, so that you will understand how to use the controls in your app which makes your app smooth.
Could someone provide a good link to book about how to develop iPhone application with the Perl programming language?
Why would you want to use Perl? You'd miss out on everything the iPhone SDK gives you, and you wouldn't be in the iTunes App Store.
If you are trying to use Perl because it's the only language you know, just bite the bullet and learn Objective-C. Use the right tool for the right job. Despite how much I enjoy working in Perl, I don't think it's the answer to every problem.
However, if you did want to use the Perl route, you could use it to drive an HTML-based app. You end up installing a mini-website with local storage, etc, on the iPhone. Building iPhone Apps with HTML, CSS, and JavaScript is in O'Reilly's Open Feedback Publishing System, so you could see how to do that for free. Perl might be a tiny, server-side component of that.
Generally Perl is not a good choice here. Without jailbreaking the iPhone, you will need to compile perl into a static library and link it against your byte-compiled code (or build a small app that glues the two together). This seems a lot of work for little benefit, since Perl has no bindings to the various Cocoa and UI elements you'll need to manage your run loop. Why do you want to use perl here?
Jailbroken development is outside the license agreement. Searching "perl iphone" will give you several links on the subject, but I really can't go much further into that.
If you insist on Perl, relax your constraint on it being an iPhone "application". Make it a web application targeted for the iPhone!
Pros
You can use all the Perl you want! Even Catalyst!
Any version of Perl you want, in your own configuration.
Cross platform with other mobile/Internet devices.
Way easier to deploy updates and bugfixes.
Cons
Requires a constant internet connection.
Is accessible outside of the iPhone enviroment.
Isn't in the iTunes store.
Tradition breaker.
If you mean backend to a iPhone application (via XMLRPC), then we are all behind you I believe.
I think Perl is a fine choice for writing a web based mobile app.
mate it with one of these tools for creating a native look and feel for a variety of mobile platforms:
http://code.google.com/p/iui/
http://www.phonegap.com/
http://www.jqtouch.com/
my 2 award winning iPhone mashups run on Perl :)
http://imoviemash.com
http://imusicmash.com
Al