Is it possible to create an app with only swift ? [closed] - swift

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I've started to learn swift and it is told to be a very fast language who takes over the Objective-C. But at many times, I saw it is not enough to write only with Swift and it was need others languages. So I would know if with my MacBook, Xcode and Swift only, it's possible to create app like Snapchat, Instagram WhatsApp or other.
Thanks you.

Yes it should be possible that you will never have to touch anything else. But a lot of the made by Apple is running Objective-C or C.
But again when you start spending time on one programming language others start to seem more similar.

Yes, of course you can. You can use only Objc or only swift or you can mixed up both language.
First start learning swift and learn how to use APPLE API. Then get some idea of app and start developing.
Take look from these link and tutorial :
https://www.raywenderlich.com/143771/swift-tutorial-part-1-expressions-variables-constants
https://www.airpair.com/swift/building-swift-app-tutorial
http://codewithchris.com/how-to-make-an-iphone-app/
http://www.appcoda.com/learnswift/build-your-first-app.html
Specially look * (Download example on swift, learn coding technique and many other helps) : https://github.com/search?l=Swift&q=swift+Tutorial&ref=searchresults&type=Repositories&utf8=%E2%9C%93

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How to read and write on Google Sheets from my IOS app using swift? [closed]

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I am developing an app that must have a functionality to read from Google Sheets, write, and update.
I looked into the Sheets API and it documents how to implement it with various programming languages, but not swift. I'm wondering if there is any way to implement Google Sheets API in swift, and how would the app be able to read and write?
Thank you!
It looks like the only official documentation from Google related to this can be found here, although I think you may be looking for something more specific like this one.
This second library seems a bit more documented since the creator does not just explain what it can do but it also provides examples on how to use it.
There is also this method that includes examples and images on how it works.
References:
First mentioned library with samples
Second mentioned library with samples and images
Google's "official way" with limited documentation

Swift app that allows two users to see a live updates drawing canvas [closed]

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I'm trying to build a swift app that would allow a user on one side to draw an image that will be updated in nearly real time on the other user's device, somewhat as if they were drawing on a whiteboard in person.
Anyone have any tips or places where I should start? I'm relatively new to swift. Thanks for your help.
This requires a persistent line of communication between your mobile device(s) and your server. Websockets allow this type of communication. I haven't implemented them myself so I can't provide implementation details, but there are plenty of resources available online.
Sockets with Swift
Websockets Tutorial
I think Realm is exactly what you are looking for.
Real time collaboration in as little as 10 lines of code

How does Apple make their Swift programming books? [closed]

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I'm trying to create a book using a template (or just formatting in general) similar to the ones used with the Apple Swift Programming Language iBook.
I'm struggling with figuring out exactly what software Apple uses to create the book with such simple and clean formatting along with what they use to create the headers, coding samples, comments, etc (is it a special version of Markdown?).
My Google searches with "what apple uses to create books", "what apple uses to create api documentation", "apple software for dev books", etc. didn't really lead to much. The searches themselves might not have been effective either, so there's that possibility.
Regardless, I got answers involving RegexKit, HeaderDocs, and Gentle Bytes, and it didn't seem too relevant to what I was trying to do.
So then I did some digging into the main frameworks that build up the iBook and I found these files (there are more but the image only shows some).
Mainly xhtml files.
So really all I'm asking is what software does Apple use to combine all these files or did they use a different application that automatically combined them as they inserted them while creating the iBook? Do they even use iBooks Author or rather an internal application that's not available for download outside of Apple? OR maybe it's something that's not related to anything I said and I'm way off track.
Any help would be greatly appreciated.
Because it is an iBook I would assume that they used iBooks Author
After you created your iBook with iBooks Author, you can convert it to HTML, it will create many files then.

New to ios. Where to start [closed]

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I am new to iOS. A bit knowledge of obj. C.
So now from where I have to start?
I just want to go with basics of objects and Class. And how do we use property of iOS.
And after that where should I move.
Please post details of iOS 6, not older version.
This website is easy to start to program for iOS. I just started it two weeks ago with this website.
Also they have a cheat sheet to understand basic structure of obj-c.
They update their contents to new iOS versions frequently.
Hope it helps you.
http://www.raywenderlich.com/tutorials
Have a look at Stanfords course cs193p. It is available for free on iTunes:
https://itunes.apple.com/us/course/coding-together-developing/id593208016
and has a community forum dealing with questions about the course:
https://piazza.com/open-classes/coding-together
The course consists of lectures including live demos, and also provides assignments (for self study).
The official site is always the place to start :) ...
https://developer.apple.com/programs/ios/
(But you will soon find that learning Objective C is a pre-requisite ... so if you don't know it yet, try http://cocoadevcentral.com/d/learn_objectivec/)
First I recommend you to take a look at Lynda's "iOS SDK Essential Training (2012)" while you are having a couple of coffees, it is a very smooth introduction to iOS.
Then go ahead for Ray Wenderlich Blog for some well covered tutorials.
[iOS developer:tips]; is a nice place to follow for quick tips.
And finally come back here for your questions, eventually.

How to write a WOL app for iPhone? [closed]

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Wake on LAN so cool, just want to write a iPhone app to WOL my PC, but have no idea to code, any one can point me the way?
If you've no experience of programming, then this is a very large first step. (More of a sheer vertical incline really.)
As such, you might want to take a step back and have a look a some basic (or indeed BASIC) programming tutorials. (Google is your friend.)
Alternatively, Apple has good online documentation regarding Objective C and the Cocoa (the language and framework that iPhone applications are written in.) A good place to start for this would be Apple's Introduction to The Objective-C Programming Language.
Basically you need to send a magic packed as described here, to do that you'll need basic programming knowledge and some knowledge on socket programming, here is a good book on the subject. There are numerous examples of that.
But in the end perhaps I could persuade you to purchase one of several iPhone applications that do exactly that, or grab the free one?
You'll need an understanding of bsd sockets as well as the user interface kit framework to put the necessary controls on the screen.
Or of course download an existing free app like this one which does it already, automatically detects your mac address, and also tells you whether your machines are on or off:
http://itunes.apple.com/us/app/wake/id396566137?mt=8
All the best for your projects.