Hello I have found two links about AVCam
Apple: https://developer.apple.com/library/ios/samplecode/AVCam/History/History.html
alex-chan/AVCamSwift: https://github.com/alex-chan/AVCamSwift
The first link has demo files that work perfectly, but its in Object-C - can someone show me documentation on converting Object-C to Swift?
The second link I have downloaded the files but it will not run in my 4s - can someone tell me why?
I would like to have a swift version so I can easily adopt it into my swift build + thanks again SO!
if you have a working objc version why not just import it with a bridging header? there is no one document about converting obj-c to swift, if you really want to convert it you are going to need to do it line by line.
also what exactly are you trying to do? get a live camera feed displayed? these docs have been ported to swift and would suit that purpose but you would need to get the input port first.
https://developer.apple.com/library/mac/documentation/AVFoundation/Reference/AVCaptureVideoPreviewLayer_Class/index.html#//apple_ref/occ/clm/AVCaptureVideoPreviewLayer/layerWithSession:
Update: how to import obj-c headers, a newer way to create them that isnt quite as talked about yet is to just create any normal .m file or objective c file then select yes to creating a briding header, it configures everything for you.
That being said it may be worth while to play around with the basics a bit more and maybe follow a few guides before attempting to implement this type of feature if you are having issues with following the links.
Here is a random application creation guide http://www.ioscreator.com/tutorials/calculator-tutorial-in-ios8-with-swift that should teach you alot. i would recommend following and reading through stuff like this until you have a bit more of a footing and can come up with more of an exact question. no one here is going to rewrite the apple program for you and your questions are extremely broad.
Related
Actually, I am working on one app and started with the objective-c. Now i have started working on swift with the same app for the further development and it will work with both the class (objc and swift).
Now I have doubt that it will accept by apple store or not.
Please help me.
This is fine, Apple provides the mechanisms for interacting with both and will not drop support for Objective-C for quite sometime. Many large organisations still have the majority of their code written in Obj-C (including Apple) so they need to give people time to transition, they aren't going to switch over immediately to a relatively immature language.
You can use Swift and Objective-c together. There is no issue in it. You need to create a bridging header file.
Please read this
Swift and Objective-C in the Same Project
I see there’s many libraries, open source, like Cocos2d, ShareKit, FormatterKit, etc. that seems up to date. (Check GitHub).
But still, implementation, snippets, samples and manual are intended to be written in Objective-C.
But, a method is a method… I think… If I get an instance of any framework/library of these and I call the method in a full Swift enviroment, would I be affected behind the scenes?
After June WWDC Swift gonna get serious, Apple is pushing hard, I’m just getting ready for the move and I don’t want my Apps to implement a soon-to-be deprecated library implementation in Objective-C.
I do not understand your question so much that I will regard your question as "Is it possible to use the Objective-C&Swiftin the same project?"
Yes, Apple claimed that developers can use Bridging-Header to implement double languages development, whatever your main developing language is ObjC or Swift. The specific details and theories about it you shall check from there.
Next I want to tell you some errors occurred in my project when I used Bridging-Header.
I always meet this kind of problem like import 'file not found'. I think you can try to check your file&folder hierarchy. Such as you have a root folder named Project, as is often the case, there is another Project in your previous Project, the root folder.
And Checking the Objective-C Bridging Header in the Build Setting. Sometime error can occurred for Project/Project/Bridging-Header.h. And the error can be corrected by changing the definition as Project/Bridging-Header.h.
If the location of Bridging-Header.h is not matching with the definition in the Build Setting, the error like import file not found will occur.
I just tell your my solution for Bridging issue I already met, I hope it can help you.
I see that there are swift code examples in the iOS guide, however, when I'm looking in the official documentation, I cannot find a Swift version (i.e. method signatures are given in obj-c). Where is it located? or is it simply not available yet?
P.S. I use dash (by kapeli) it would be great to have such added to their docset as well.
just take objC and apply it 1:1 to swift ... only the syntax of the language changed -- EVERYTHING is identical (types, concepts) -- if you use those frameworks like parse or uikit or Facebook or whatever. they didn't miraculously change :)
I have created an iOS mobile application. Is there a way to generate a UML class diagram for the Swift programming language?
I have tried Omni Graffle, but it keeps saying that the project doesn't contain Objective-C interfaces. And Omni Graffle only does this for Objective-C.
I remember looking at this question a while ago and was disappointed that there wasn't any tool like this so I created one myself with the help of a colleague. It's free, it's open source, it's looking for contributors...
https://github.com/yoshimkd/swift-auto-diagram
And here's a tutorial on how to use it (don't worry it's very simple):
https://martinmitrevski.com/2016/10/12/swift-class-diagrams-and-more/
Happy diagraming :)
The answer unfortunately is: you can't do it. At least not automatically. Swift as compiler itself has enough flaws left. Leave alone some tool will be able to swallow any Swift code. Your only alternative is the good old manual way.
I know that Enterprise Architect has a possibility to define a language syntax based on BNF. But Swift is (again unfortunately) not context free. (In fact it's so context sensitive that it often swallows its own rear.) So that won't work either.
P.S.: Now that Swift is open source someone might take the opportunity to tap the compiler's output for the class interfaces. I guess that should not be too difficult, but it's a lot of work still.
Inspired by swift-auto-diagram and similar open-source tools I started to work on such utility with the goal to write it in Swift (to make contribution easier by Swift developers) and to integrate it in Xcode and the Swift ecosystem.
Xcode extension: https://github.com/MarcoEidinger/SwiftPlantUML-Xcode-Extension
You are able to generate a class diagram from selected lines of code or from a whole file displayed in Xcode. The class diagram will then be opened in your browser. There you can modify the diagram with PlantUML notation
To generate a class diagram from multiple source files you can use the underlying CLI tool and Swift Package: https://github.com/MarcoEidinger/SwiftPlantUML
There is a size limitation to the visible diagram content (but you can delete content in the browser with PlantUML notation)
I have just started working in iOS8. I have seen here Playground concept. But I didn't understand it. I have read that it could be only used with the Swift language.
I have referred documents from this link .
Can we use it with Objective-C too?
Thanks for any help!!
The playground concept is built upon a technology called REPL (More info on REPL)
Basically you can type code into the playground which is 'compiled' (evaluated) on the fly so you can see the output/result.
It's quite a nice way to play with a language, design a function or test an algorithm, but you cannot build a distributable app with a playground.
For a playground concept to work a given language needs to support REPL. Currently Objective C does not support this, therefore only Swift is available in playground form.