How To Pass Data Between View Controllers In Xcode 8 (Swift 3)

[@sdsport2004]

Excellent job. I have been all over the internet looking for good example of how to set up a segue to another ViewController and wasn't having any luck until I came across your quick tutorial. Excellent explanation and easy to follow. This is the second time you've rescued me today! Thanks!

[@gjermundification]

I have now watched 3 of your videos, I find that you are very good at grasping the essence of your topic and you are really good at not derailing your topic.

[@kasiabialostocki699]

For an utter noob, you make learning to code fun and easy. You are an awesome teacher!

[@1TheSwiftGuy]

Thank you, super glad to hear that!:)

[@timmy334]

Thanks! I getting into iOS development and your tutorials are always helpful and concise. This is a good one.

[@1TheSwiftGuy]

Thank you!:)

[@nooral-awadi9526]

Thank you so much! Short and to the point. Please keep posting great content on Swift

[@chopchopcuts1902]

0:27 What an emphatic keyboard press!! Great tutorial!

[@1TheSwiftGuy]

haha, thank;)

[@andyal868]

It helps to watch it twice. In general, many videos I get on a second try. He explains pretty good though

[@azevedo1236id]

congratulations man, i am from brazil and here we has a very limited videos about swift, but yours videos are great, very simples and quick!! keep doing this !!

[@bigmtnstudio]

Quick and simple! I like that. Thanks, Swift Guy!

[@1TheSwiftGuy]

Thank you for your comment Mark! Love watching your videos!:)

[@bigmtnstudio]

Wow, that's awesome. I love your channel, love your enthusiasm for programming!

[@1TheSwiftGuy]

Thank you, I appreciate you saying that!:)

[@Lelvl8]

Mark > TSG, Yeah sry bro :) liked

[@GruntyGunner]

1:52 I just wanted to point out that dragging a segue from back to the previous VC is generally not recommended and that you should use an unwind segue instead. I know you probably know this and it's fine for this tutorial but just wanted to clarify for people brand new to Xcode.

[@agustinachaer]

great video! The only thing that I would change is the use of a show segue to go back. I know that probably for simplicity purposes you did it that way here but it is not a good practice at all. In this example you are stacking those view controllers one over the other repeatedly and never dismissing them. I don't know if it maintains multiple instances of the same view controllers so starts to take up a lot of space or if a new instance of a viewcontroller is created, the previous one of that same viewcontroller is destroyed. In any case, it is not a good practice therefore you should not be doing it in a tutorial without explaining that it should not be done cause beginners pick up on everything you teach. Yaser's implementation of the back button is the correct one. BTW recently I had to implement a custom transition for a segue cause i wanted it to slide in from the left and be dismissed to the left too and I though of it to be very interesting.

[@statsbruh]

good catch

[@frankdragon]

Hey man really good videos! Shorts , meaningful and touching a lot of topics

[@1TheSwiftGuy]

Thank you so much for your comment!:)

[@dianewarde6074]

That should say “trying to learn to code. Thanks for all your helpful tutorials.”

[@arad907]

As Mark said, quick & simple & great... Thanks.

[@DarylNotDead]

Hi. In the “sending” view controller when setting your var, you could try logic testing. Something like- If mystring “” then mystring =mystring In theory when the sending controller is recalled it will keep the data as is if it is not “”. That may work.

[@aybarslan]

Its also works on swift 4 xcode 10 Great Job !

[@akshaydewan5608]

this video was a great help!

[@khaabd8916]

Your tutorial is amazing please keep going

[@1TheSwiftGuy]

Super glad to hear that!:)

[@GunnarDeMinecraft]

Great, quick video!

[@webmasterashishgaur]

you are not guy, you are the best swift guy

[@yaserbinabdullah3900]

Thank you man, for this amazing tutorial. However, you forgot the back button but I did it for you and for you guys @IBAction func back(_ sender: Any) { dismiss(animated: true, completion: nil) } I have called the button (back) then I used dismiss code to return to the same page without losing the data. which that keep free space in the RAM of the phone. keep up

[@yaserbinabdullah3900]

if you want to have a new page to enter new text just connect the button to the firstViewController without the code that I have provided before

[@1TheSwiftGuy]

thank you for your contribution Yaser!

[@yaserbinabdullah3900]

You are welcome

[@papii_6669]

Yaser Abdullah I noticed he forgot it too but then I realized that he did a simple seg for it :)

[@Zo91709]

Yaser - is this what i would do if i needed the data from the second view controller save and displayed back on the first view controller?

[@catcatcatcatmeow]

Thanks, I'm super new to swift and this tutorial is neat and amazing, it helps a lot :)

[@shoukimichaelsouri7251]

Love these quick tutorials!! Have a quick question. How could you pass a variable from firstViewController to a thirdViewcontroller without a direct segue from the first to the third with a flow like this first-->second-->third, each with a segue to the next?

[@pravishankar]

Great tutorial - Am following these steps to pass an array between viewcontrollers...do you have a video for that?

[@QAInsights]

Thanks for the tutorial. How to pass data from VC A to B to C? Please help me out.

[@prithviapportunity7374]

Awesome dude!! simple to understand.

[@BernaLuz]

Absolutely useful and easy. Thank you.

[@BlaBla-dw9mg]

Thank you for your amazing tutorials.

[@francescomusto4918]

Hi Swift Guy. This is my first time in your channel. But I have a big question about passing data between View Controllers. There is a simply way to make two View Controllers communicate without a direct link but through a TabBarController and a Navigation Controller? Thanks a lot!

[@ricardoisidro7640]

Nice example, man. It was really helpful for start, but now I wanna now what happens if I have more than one viewcontroller (suppose a form splitted in two viewcontrollers). Do I need to add a segue among each viewcontroller and the final VC? Thanks a lot!

[@eyerusalemwoldu2144]

Thank you, It is very informative and simple!!!

[@1TheSwiftGuy]

Glad to hear that!:)

[@oscarlofqvist240]

Thank you, Swift Guy, great video! I have a question is this a safe way to pass data? Like a user email or password?

[@Adamzdsad]

Hello , i have a question which im hoping you could answer. I am building a restaurant application, and was wondering what would be the best way for me pass on order information from a "restaurant menu" view to the "checkout" view e.g. User selecting Cheese Burger x1 from menu > Then pressing add item . Love your vids by the way, learnt so much :)

[@bigmtnstudio]

Amzkeh, you could use the same concept Swift Guy uses. Except instead of a string you could create your own struct/class to hold orders like: class Orders { var itemID = 0 var itemName = "" var itemCount = 1 } Then you just have an array on the menu page: var orders: [Orders] = [] Append items to this array and when the user taps "Checkout" you pass that variable "orders" to the checkout viewcontroller!

[@nouraalfaris1778]

thank u fro the fantastic Video i want to ask u about if i want to move data was retrieved from DB then i want to store it again with other View i will store data inside it into database how can i do that ?

[@guillermocast01]

Great video! Thanks Bud, really appreciated.

[@1TheSwiftGuy]

:)

[@mohamedsudheer9163]

Ppl like The Swift Guy will go to iOS heaven edit: helped me solve a similar problem to the one shown in the video

[@carlomagnocondesaldana5860]

Simple and great. Thanks brother!

[@carlosfernandez6470]

Thanks quick and easy .. love it

[@searchingwhat6835]

Great tutorials dear keep it up thanks for this wonderful tutorials

[@AbdullahJirjees]

Sir thanks a lot to your video, I modified it by making the seondViewController to be TableViewController, but I faced this issue with the label, I cannot figure it out "Main.storyboard: error: Illegal Configuration: The label outlet from the TableViewController to the UILabel is invalid. Outlets cannot be connected to repeating content."

[@tubex1300]

Hi It's really save a lot of time Many thanks for this wonderful vid

[@fraiserroberts6910]

Thankyou for the video, just wondered is there a way to pass data, so that I can pause audio using a button on a different view controller?

[@1TheSwiftGuy]

What you could do, is create an extension to your view controller, in which you create your audio player. That way the audio player will be accessible throughout all of your view controllers. You will then also be bale to pause it;)

[@SurendraKumar-si8lw]

Use protocal and delegate method. create protocal of BUtton View Controller and implement delegate in Audio View Controller.

[@ArtemLebedko]

Briefly and clearly Thank you buddy :3

[@ismael7155]

Thanks! Keep up the good work!

[@youngdomsey]

Thats an amazing tutorial! Thank you!

[@Peech]

How can I make the text that we inputted in the TextField remain in the label even when you close the app entirely?

[@studentprogrammer9115]

hey this is help helpful, but is there a way I can send the date from a UIbutton(which was tittleselected from a picker view) to a label in another VC?

[@1TheSwiftGuy]

Yes, make sure to take a look at my video on how to use multiple view controllers!:)

[@PeterSchimpl]

Great stuff - thanks for sharing!

[@goktugguvercin8069]

Your tutorials show us how we can send data from first view controller to second view controller. In other words, this is forward data transferring. Is there a tutorial of how we can take data from second view controller to first view controller ? My aim is taking data from second view controller and add it into a table view in first view controller.

[@abdulrahmanalshamrani1765]

You are amazing teacher ^_^

[@1TheSwiftGuy]

Thank you!:)

[@BalaaLyf]

Please upload one more video for this pass data.. Multiple labels and multiple textfields.. Data transfer and save it

[@mikefrank2643]

How would it be for the saved data to be seen in several viewcontrollers without using segue ???

[@jacksonrogers2147]

Would I be able to do something with this technique when taking a variable from a text field and then simultaneously putting it into multiple tabs of a tabbed project (i.e. one with a table view, one with a map, one with a summary)?

[@carrot7143]

Thanks for the tutorial! But I was wondering how can I retain the data that was entered in the first view controller. So when i return to that view controller the we previously entered in the text fields are unchanged?

[@nicolasthevenard1913]

I love you tutorial, thank you

[@1TheSwiftGuy]

Glad to hear that, you are welcome!:)

[@olivierdumont9223]

Heyp, so easy!!! Many many thanks Seb! :-)

[@papii_6669]

Great job bro

[@Zo91709]

Nice video- what if i want to send the data entered in the second view controller- back to the first. For example- say once you type your name and push enter in the first view, it pushes the data to the second view- however, once you're on the second view and you push save - it automatically goes back to the first view, and the name you entered is automatically saved. Please let me know if you have a solution. Thank you the Swift Guy!!

[@tdrusk]

Thank you thank you thank you!

[@1TheSwiftGuy]

You are so welcome!:)

[@McD8]

Just one question: how would you do this with a tab interface? I would like to enter text in one tab and have it effect a label in another tab. Thanks!

[@raven3107]

Can you make a video on Arrays?

[@الياسيولأمل]

Hello Can you explain to me how to fetch a record from a permanent store using the search tool

[@saikrishna0512]

can we do the same with storyboards??

[@ilanepena7661]

Hey nice video but I'm trying to do the same by passing doubles and then add these numbers to others but it doesn't work it says Binary operator '+=' cannot be applied to operands of type 'String' and 'Int'

[@warmachine3071]

Thanks so much bro!!

[@1TheSwiftGuy]

You are so welcome brother!:)

[@rahulnetha3190]

how long will the data will be saved ?

[@רוןאבות]

Thank you! very helpful

[@marianagrnk]

I need to pass an array of data from the 1st to the 4th view controller, I tried this way but doesn’t work for me cause the views are not directly connected. Any help I could get pleaseeee?

[@renederv]

Hey What do I need to change from this video I’ve learned if i dont want to switch to the other ViewController immediately after clicking on Enter. So when i click Enter i stay on the first ViewController and dont switch to the second? Thanks :-)

[@jrgibson]

How do you pass data from ViewController A to B and then the same data to ViewController C?

[@awadsandal6187]

guess what u r simply amazing

[@ktmman1503]

Hi, did you get my email about the Apple Nav.. wont work with versions less the 10.X .. help please... Craig.

[@1TheSwiftGuy]

Replied;)

[@elitiauniverse2871]

Thank you ^^

[@bellekiller]

well, a confusion here. the seguway thing, is it a built in name or a name you made up.....?

[@SullyGamer17]

Could you do a tutorial on custom segues please!

[@mirsaelenaalvarez3817]

Hola, Muchisímas gracias!!

[@lukee386]

Are you doing anymore 'i test your apps'??

[@1TheSwiftGuy]

My goals is to get the next one out on Friday!:)

[@lukee386]

The Swift Guy nice! Thanks. I left a link to my app in the last I test your apps video

[@GarryFanata]

Why did you put the segue on the view controller and not on the "enter" button

[@1TheSwiftGuy]

I would take a look at this video. In it, I explain the different types of segues, and why you use one over the other:) How To Trigger A Segue In xCode 8 (Swift 3.0)

[@dianewarde6074]

Swift Guy, your tutorials are very clear. However I am getting a “expected declaration” error when I type the line label.text = myString. I am using different names for the label and string, but I have checked and double checked the spelling and capitalization for correctness. I can’t find anything on the net that deals with expected declaration for such simple code. Any ideas? I am a retired person trying to learn to nos for all your helpful tutorials.

[@joenaveau]

You have to write your code in a function. It can be the override func viewDidLoad() in the ViewController class, among others. it's 10 months later, I don't know if this is still relevant or not! :)

[@LebenWerden]

hello. i Have a Question in 4:45 Why we don^t fill our Outlet named label ?

[@warmachine3071]

how would i make it so when the user comes back their username stays the same and it starts on the secondviewcontroller when you launch the app?

[@jessica6612]

Nice and simple tutorial. But you shouldn't be linking your second view to the first view like you did. You have to dismiss the second view when you click the "back" button, otherwise you will have many instances running on the background, and depending on the app, that will slow down the process.

[@xXXDgrayManXXx14]

what happens if you want to pass a function or a dictionary ? @The Swift Guy

[@javiergutierrez5833]

Thanks!

[@rishavbhowmik757]

Can you make a tutorial on OS_Log

[@perezwillie-nwobu3269]

Can you permanently save it in an array of another view controller?

[@perezwillie-nwobu3269]

How do you do that? I tried using userdefaults.standard. but Iit didn't work. don't know if I did it right, any ideas Tiffany?

[@SurendraKumar-si8lw]

if you saving Data permanently, means you are not passing data OR no need to pass data then. just save value using userdefauts in firstViewControoler . ans I secondViewController just retrive default Value and save some varibale like array.

[@perezwillie-nwobu3269]

well it kinda didn't work for me. my array in the second viewController is in a global variable

[@manuelponce1568]

dope! thanx

[@1TheSwiftGuy]

;)

[@intellectlogic99]

unable to do it getting this error Use of unresolved identifier 'segue' on this line if let registration_otp = segue.destination as! registration_otp

[@alidhan1299]

Thank you

[@EzDoesntExist]

thanks!

[@LebenWerden]

And no unWind ?

[@donk7283]

wondering if anyone knows a way to send multiple text field over to there own separate label in the next view controller?

[@LebenWerden]

2:22 You take a Cocoa Touch file. Why not a swift file?

[@shawntaylor9509]

Create a Swift file and see the difference.

[@studentprogrammer9115]

Ok I got that, But I’m stuck to sending data from a tableview(consist of array) to a label any help.. even my TAdon’t know how to do that 🤦🏾‍♂️

[@1TheSwiftGuy]

Hi, do you want to print the information of the whole tableview into a label, or just the value that the user tapps on in the table view?

[@studentprogrammer9115]

Just the value the user click on.. 👌🏿 damn Man U got that so easily, when my TA took 2 hours to understand just the question. Smh 🤦🏾‍♂️

[@1TheSwiftGuy]

Haha;) Have you taken a look at this video? This should explain how to go about doing it:) kzbin.info/www/bejne/d2e6nWuviNeCkKs

[@SurendraKumar-si8lw]

By the way . what is TA means ? :D

[@studentprogrammer9115]

Teacher Assistant lol

[@MusikRey]

Thanks you (y)

[@1TheSwiftGuy]

You are welcome:)

[@jiyoo5767]

500th like!

[@kamilpetryczkiewicz1700]

I get the signal sigabrt ;( why?

[@younessaitouaddi2268]

nice

[@khaabd8916]

millions of likes ()

[@1TheSwiftGuy]

haha, thank you

[@libvlog2264]

hey the swift guy where u stay?

[@1TheSwiftGuy]

Denmark;)

[@bellekiller]

it's like naming a function function....

[@1TheSwiftGuy]

haha, I dont quite remember the video, but I guess you are right:) I would give it a different name