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Request a tutorial

I am calling out to all my readers to give some feedback on what kinds of tutorials you would like me to write.

So please, leave a comment!

UPDATE: I have fulfilled one request already. Thanks Philip for the suggestion!

Core Location GPS Tutorial Part 1
Core Location GPS Tutorial Part 2

Random Posts:

If you found this useful, shoot me a small donation or at the very least leave a comment, every bit of encouragement helps keep me motivated to update with more content on a regular basis!

Comments

*

73 Responses to “Request a tutorial”

  1. Chris says:

    Hi

    Time management – I think I need a course on that :)

    Just a thought,Chris

  2. Nick Vellios says:

    What are you referring to specifically?

  3. Philip says:

    Hi Nick,

    I have barely started to learn Xcode, I’ve watched a few videos and downloaded some samples. What I would like to understand in simple terms is what all the files are for, the m, h, xib etc. 

    Things I would also like to see tutorials for are below, I’ve tried to break them into different categories. I haven’t been though all your tutorial so apologies if any of my suggestions have been covered.  

    Simple:
    Where to start – what’s the best way to get into iphone development?  
    Design principles – sizes of images for retina / non retina displays / iPad / icons? Are there any considerations, like bright red just doesn’t work, don’t use fonts smaller than 8 etc.
    Pitfalls – what are the things to avoid. Don’t use hardware buttons for non standard uses or your app won’t get approved. 
    What are the stages? Concept, design, build, test, release? 
    How long does an app take to make?

    Intermediate:
    Scoreboards – local device. 
    Score sharing – Twitter etc.
    How to share an app with others for testing (ad hoc build I believe this is called).
    How to submit an app to apple? How long does it take?
    GPS. Share you location.   

    Advanced:
    Linking to rss feed or data feed – reeder, flipboard, digg etc. 
    Scoreboards – online. Hosting options, costs plus how to code. 
    Memory management. What needs to be considered and best practices.
    3d graphics where to start.
    Augmented reality – add data over the top of camera input based on location or rotation of device. 
    Bluetooth / internet link devices for head to head game.
    Themes switch background / ui elements based on users choice. 
    How to enable backgrounding and resume.

    Sorry I started rambling. Hopefully there’s something in there that would work for a tutorial. 

    Many thanks 
    Philip 

  4. Nick Vellios says:

    Philip, thanks for that comprehensive list of requests! I have found a few from that list I would like to work on.

  5. sean says:

    I was wondering if you could write two tutorials: 1) recording your own soundboard (as a user) and 2) looping images ex: a campfire

  6. Nick Vellios says:

    Sean, I did post some code snippets for looping through images.

    See: http://www.vellios.com/2010/05/31/code-for-animated-sprites/

  7. Nick Vellios says:

    Philip, I started on a GPS tutorial. Just have the sample project posted:

    http://www.vellios.com/2010/08/15/corelocation-gps-source-code/

  8. sean says:

    Thanks! I have an important request. I’m horrible when it comes to using the accelerometer. Could you create a tutorial on how to play audio when a shake is detected

  9. Nick Vellios says:

    Sean, you can detect a shake gesture without directly using the accelerometer protocol method.

    Add this code to your ViewController.

    - (void)motionBegan:(UIEventSubtype)motion withEvent:(UIEvent *)event {
        if (event.type == UIEventSubtypeMotionShake) {
            ...
        }
    }
    

    Your view / view controller has to be the first responder, so in your viewDidLoad put this:

    [self becomeFirstResponder];
    
  10. Philip says:

    Thanks Nick,i’ll take a look at the GPS tutorial tonight.

    Philip

  11. sean says:

    Thank you for helping out with that one. I was wondering if you knew of any way to access a news database like cnn and display to the user certain articles by their tags. For example: showing a user all the article links in reference to say, al sharpton.

  12. Nick Vellios says:

    One request filled. Here is a tutorial on Core Location and GPS as requested by Philip.

    http://www.vellios.com/2010/08/16/core-location-gps-tutorial/

  13. Cole says:

    A Session/Cookie Management tutorial would be awesome!

  14. Nick Vellios says:

    Cole, please explain.

  15. Josh says:

    Hey
    - I did not see a “question” spot so I figured here was best. What program do you use for creating your graphics like the ones from spacebubble?

  16. Nick Vellios says:

    Illustrator, Photoshop, and Inkscape.

  17. Ryan says:

    Hiya,
    Great source to learn some new stuff, thanks a lot.
    I was wondering if you could do a tutorial for an image gallery , like a scrolling gallery, with some options to get some info about the pictures if you’re touching them.
    Thanks again and keep up the good work.

  18. Omkar says:

    I wanted a small tutorial where I can use the Google Maps API in an application to find the distance between point A and point B “Get Directions” app what I am looking for is that it will show the direction from point A to B and one can retrieve the distance KM/Miles and can use to calculate speed..etc .. What do you think Nick ?

  19. Ty says:

    Hey! I’ve been diving into iPhone development for about 1 week now and have been working on a puzzle game. I have learned how to add sprites, and dynamically detect and swap them, but what I haven’t been able to figure out is how to make them fall like the Bejewelled game. I know how to destroy the puzzle pieces, but I’d love to know how I could iterate through all my pieces and tell them to fall down to fill in empty space and create new puzzle pieces at the top to fall.

    It would be awesome if you could even just reply and say how you would do it!

  20. Nick Vellios says:

    Ty, welcome to iPhone development and welcome to my site!

    I have never played Bejewelled. Are you using OpenGL or Core Graphics? Check out the code to SpaceBubble, it has bad guy sprites dropping down from above. Uses only Core Graphics.

  21. Omkar says:

    Well Nick .. not calculating the speed but retrieving the distance traveled sorry about that ..

  22. Nick Vellios says:

    Okmar, never looked into the Google Maps API. Probably won’t get to a tutorial on it anytime soon since I have never seen it, but I will definitely look into it now that you brought it to my attention.

  23. Omkar says:

    Thanks Nick :)

  24. duk says:

    hi,
    I have been a great fan of yours.I have downloaded few project.
    they havebeen great.
    thanks for your great tutorial.

    thanks
    DUK

  25. muced says:

    hai..i am new to iphone development..

    i would like to learn about core data.

    can u help me?

    i found that your tutorial is nice simple and easy to be understanding..

    thanks..

  26. Nick Vellios says:

    Ahh, Core Data. That is one I have yet to take a step into. Going to need to for a client’s app shortly. Once I master it, I will be sure to write a good tutorial. The tutorials I’ve found on it only make it seem harder. From what I read, it’s a big subject to tackle. Probably going to need a series of tutorials each with baby steps leading up to a full-fledged demo. Thanks for the suggestion.

  27. D4D3 says:

    Hello! I’m an italian student (so sorry for my poor english) and i would to take start programming iPhone app =)
    I have download the source code of one of your application for study it =) but xCode say me: Base SDK missing! What sdk use you?
    And another question, i have to try to do an application to control wifi network, login advanced, scanning… how can i do?
    Thanks… :)

  28. Frank says:

    Nick,

    I would love a Part 3 to your GPS tutorial. Something that shows how to use rever geocding. Thanks!

  29. Jeff says:

    Hi Nick,

    I would like a tutorial on creating flash cards. More or less something like displaying an addition problem, then the user would select the correct answer. Perhaps something using Cocos2d would be great.

    Best regards,

    Jeff

  30. Darrell says:

    Can you do a tutorial on adding mods on the game twee jump? If necessary.. I will pay you for it..

    * Add bullets for main character to shoot at enemies.

    * allow enemies to shoot at main character

    * background music

    * level switching

    * colission based sound effect (when player collides on platforms) *boing8

    AS i mentioned i have no problem paying you for your work in making this tutorial ..

    let me know

    thanks

  31. Lukas says:

    it would be awesome if you could show how to read in a vCard string, and save it to the addressbook. thanks lukas

  32. moosc says:

    Tutorial to make an interactive ebook in cocos2d.
    http://www.cocos2d-iphone.org/games/category/books

    I will pay for this tutorial. Sites to sell the tutorial:
    http://marketplace.tutsplus.com/
    http://peepcode.com/
    http://pragprog.com/

    Or at least, you can sell the interactive ebook source code.

  33. Keith says:

    Hi Nick
    Love the site!
    I would like to request how to implement C in xcode for Iphone gaming. It would be great if you could do a tutorial on where to start with C ^^. I am an embedded programmer type person and C is my grail. Objective-c makes my head wacky. :)

    cheers

  34. Dhilip says:

    Hi i like your simple and short tutorial versions. I would like to have a tutorial on increasing brightness in a UIImage

  35. Rakesh says:

    Hi, I need your suggestion about one of my app i want to draw path of any one movement not on map just on simple view to represent how someone moved turned using GPS.
    I am able to get GPS data and now i want to use that data with applying some scale to be get visible on view.

    Thanks,
    Rakesh

  36. Adhees says:

    Hi Nick.,
    i need a sample tutorial for creating databases like sqlite, core data for storing and retrieving datas.

    Thaks in Advance…

  37. Chimera247 says:

    First of all i would like to thank you, for all the support(tutorials,code) that you shared with all of us Noobs
    I wanted to know, i want to develop a game,like spacebubble, how can i create various levels? Do i have to add more viewcontrollers?
    Just want to know, what other files i need to create so as to make the game with various levels
    Thank you

  38. ram says:

    please, give the tutorial for “particle effects” in iphone-view based applications..
    please sir help me..

  39. Joe says:

    Hey Nick,
    Before I request a tutorial I would just like to say that this is an amazing site.
    I don’t know if this would be too much but I have been developing for iPhone for about a year know and love it. I was wondering if you could kinda show us how an app like foursquare works?
    Also I have a bit of a question,
    I have 3 apps on the app store that currently use iADs.. I havent been to happy with them, I am not very knowledgable about ad systems but
    one app has 450 requests and about 12 impressions.. this does not make sense to me. I was considering trying Admob.. do you have a tutorial on how to use both in a app? thanks so much

  40. Sacha says:

    Can you post a weather app tutorial that the user can choose his location weather info.
    Thanks ! ;)

  41. shoaib hafeez says:

    hi, i want to make an app that reads GPS data and speed of travel..could you please tell me what is the coding of that app…

  42. shoaib hafeez` says:

    hello, could you please tell me how can i make an iPhone application that marks your path in real time on a google map… please suggest me with full code.. thank you

  43. usman says:

    hi, please show me a tutorial o of this application Make a simple egg-breaker application that is fun to play. To pass the level all you are required to do is tap on the devices screen a 100 times in 60 seconds to smash the egg. You are required to show the various stages of damage by showing how the cracks develop on the egg as you tap more and more. Use at least 3-4 images of eggs to show various levels of damage (damage is measured in terms of number of taps done so far). Also make the application with multiple game levels of varying difficulty…thank you…..please suggest me as soon as possible..

  44. usman says:

    i want to make in an iphone apppliacation in objective c pls… suggest me with full code…thank u ……….

  45. usman says:

    i required very urgently pls…. sent em the code as soon as posible…….thank you…..

  46. Kyle Plattner says:

    I would like to see an example of how to efficiently handle large amounts of map overlays either through a generated png file or through map overlays. This is very helpful for farm mapping and handling other types of geo-spatial data.

  47. ram says:

    hello sir,

    please explain about joints in box2d (cocos2d) .and give some examples for joints(cocos2d+box2d).please help me.

    your son is very cute sir.

  48. shoaib says:

    i want tutorial of birhtday reminder which will have multi views. plz give me the tutorial as passible as…thank you!

  49. Rick Jackson says:

    Hello,

    If you can provide a good Tutorial on image Processing on iPhone and iPad like Brightness, Contrast, Saturation, Hur and Sharpness using Slider ?

    If you can provide that tutorial then it will be very good for the starter developers like uys

  50. Hello Could you please make a tutorial on how to implement admobs on your istrobe as I have a led flashlight app but when I implement admobs the app crashes but only with that app not a new one

  51. Lance says:

    I was wondering if you could create a tutorial for making a book reader. In particular, a comic book reader. I quite fancy reading on my iPad and would love to learn how to program an application to read CBR and CBZ comic book archives. I’d want to support pinch/zoom. I’m very much a novice with IOS programming, so this type of project seems like a nice starting point. Not fance 3D graphics… just a handy reader app to get started.
    Thanks for your site. I do enjoy the tutorials you have created! I hope all is well with you and your son. I read your “about us” section.
    Best regards.

  52. Amit says:

    I am currently developing pocker game in objective c . This is my internship project & i have to submit it after 6 months . I am currently stuck because i unable to dictate from where to start for project . If there would be any tutorial for it then it would be help full for me to start up .

  53. I would really like to learn about in-app subscriptions. There doesn’t seem to be too much novice level instructions on the subject. Just can’t figure out why you have to use an outside server to verify a receipt, etc. Might be a boring subject but I think info on it is pretty scarce. Of course, if you know of any good tutorials on this subjects… a link or too in the right direction would be great.
    Thank you,

    Greg

  54. Kanwal says:

    Hi,
    Great! in-fact awesome work…I would like to request a tutorial about different iPhone animation. Animations that can be applied on UIViews, like page curl, sliding effect etc. Please make a single program that contains all the animations.. This will be of great help to people like me who are new to iPhone and would like to use some animations.

    Thanks

  55. virendra says:

    hiii……i want the tutorial for web services …. i want login through ipad and it will come up with some website

  56. Andrew says:

    Hello,

    I was wondering if you could do a tutorial on adding an open source project into a TabBar project. I have been trying to add the open source project (PlainNote) into a simple TabBar for a week and have been having some issues. PlainNote can be seen in tab but doesn’t have the add button.

    I m not sure if this is the type of request you normally take. But, if you could help It would be greatly appreciated.

    Thanks.

    -Andrew

  57. Gal says:

    hi,
    ill e happy to have a tutorial that explains how to send a device location to a php/mysql webserver.

    thanks in advance
    Gal

  58. confusedme says:

    Hi, I am learning iOS development and I want to develop the classic snake game for iPhone.
    I was wondering if its possible that you could guide me through this thing step by step as in if you post a tutorial for this game which I can use for reference or other similar app’s tutorial which can help me get all the facts together.
    I am really confused and have vague ideas as to how to start with this particular app.
    So far I have only developed one simple app using Objective-C.
    I have some programming experience in C++.
    I hope to hear from you soon.
    Thank you.

  59. Frooti says:

    Hello .. I would like to learn a step by step tutorial on Map Kit Framework. With few examples it would be great for many beginners.

  60. harry layman says:

    i am reading lots of tutorials as i move from simple UI Kit language learning apps to more of an arcade style app. leaning toward cocos2d etc but still learning.

    thanks very muhc for your site. ah! now i see the search box. interested in “in app purchases” or IAP. if you have a tutorial on that, i will find it. if not — consider this a request! thanks again!

  61. John says:

    Hi, could you make a tutorial on how to implement multiple choices via a tableview interface (say via 2 pickerviews) to drill down to a specific content, instead of the commonly found multi-drill down tableview. For example, there is an option for Fruit Type and the other is Colour. If I pick citrus and yellow via the pickerview respectively, hitting another button will lead me to say Lemon? I’d figure it to be an interesting way to navigate a tableview:)

  62. Ujjwal Shrestha says:

    Hey,
    M working on a location based applicaiton and it needs to updates every 5 minutes. i tried a lot but it doesnt seems to work. can u please send me a tutorial about it.

    thanks,
    Ujjwal

  63. Myriam says:

    Please upload something simple for Core Animation

    thanks

  64. J0s3ph says:

    Any chance of a scrollview tutorial that explains how xy coordinates work while zooming and scrolling? Thanks!

  65. Ofir Malachi says:

    Hello there!
    first off all,thank you for your Open Sources Codes.. !
    seems you have knowledge in iOS maps.

    can you maybe write a “GPS navigation tutorial”?
    that i’m enter an address and the iPhone Route me?

    Thank you Very much. !

  66. Anuj says:

    Hi,

    can you please write the code for polygon shape terrain (different shape of static terrain) and to move the vehicle on that polygon shape path from one end on terrain to other end continuously.

    Thanks,
    Anuj

  67. Srushti says:

    I am doing one app where i want to show multiple places with my own location ,how can i do it?

  68. Manish Jain says:

    please provide some tutorial that submit user location on server through web service while application in background

  69. Sabino says:

    Hi i love your site! and i already have some of your apps! you are an amazing that and i know that felling because I’m a dad of 2 baby girls.
    have a question for you i just want to know how can i make when the User of my app types the answer on UITextfield my label will say that if its right or wrong, i have tried everything, if and else statements, switch , but i can’t, Please help me!!!

  70. Nick Vellios says:

    Sabino, try UIString’s isEqualTo: method.

    if ([myTextfield.text isEqualTo:@"Secret Answer"]) {
        myLabel.text = @"Correct!";
    } else {
        myLabel.text = @"Incorrect!";
    }
    

    You will want to insert this code in a button action or possibly even have your class become the UITextField delegate and implement the UITextFieldDelegate Protocol to listen for changes.

  71. Nick Vellios says:

    Manish Jain, this is such a common request, but because of the obvious privacy risks in posting code to do this, I am not publishing it openly. I have written code to do this, including server-side PHP code to store to a MySQL database, and am offering it for sale to those that are interested.

  72. Sabino says:

    thank you so much for you reply!!!! I’m so happy haha!!!

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