Your First App

[dylanreich]

I have made a video tutorial for a "Dynamic Hello World" app. Here is the video: Your First iPhone App (Dynamic Hello World)

[javz3]

Thanks for the tutorial dylan, really appreciate it.

Also I'm facing some problems, this is the message I receieve when compiling the program -

'NSString' may not respond to '-stringByAppendingstring:'

And when I run it in simulator once enter is pressed the program crashes/shuts down.
Another thing to note is that when I typed stringByAppendingstring it did not come automatically like @synthesize or IBAction, I had to write it manually.


Any help appreciated and thanks again.

[dylanreich]

Originally Posted by javz3

Thanks for the tutorial dylan, really appreciate it.

Also I'm facing some problems, this is the message I receieve when compiling the program -

'NSString' may not respond to '-stringByAppendingstring:'

And when I run it in simulator once enter is pressed the program crashes/shuts down.
Another thing to note is that when I typed stringByAppendingstring it did not come automatically like @synthesize or IBAction, I had to write it manually.


Any help appreciated and thanks again.

Glad to be of help! I'm not home right now, so I can't be of much help (I'm on my phone)... Are you sure nothing is incorrectly capitalized? No wrong hypens or anything? Even the smallest error can throw off the whole app.

[mariano_donati]

Originally Posted by javz3

Thanks for the tutorial dylan, really appreciate it.

Also I'm facing some problems, this is the message I receieve when compiling the program -

'NSString' may not respond to '-stringByAppendingstring:'

And when I run it in simulator once enter is pressed the program crashes/shuts down.
Another thing to note is that when I typed stringByAppendingstring it did not come automatically like @synthesize or IBAction, I had to write it manually.


Any help appreciated and thanks again.

Have you copied and pasted that message?. I didn't see the code from the tutorial, all I see is that there's a lower case 's' in '-stringByAppendingstring'.
I'd go to that line and check. It should be stringByAppendingString.

[dylanreich]

Originally Posted by mariano_donati

Have you copied and pasted that message?. I didn't see the code from the tutorial, all I see is that there's a lower case 's' in '-stringByAppendingstring'.
I'd go to that line and check. It should be stringByAppendingString.

Sounds like the problem for him! My fault for not giving a link to a download of the project.

[javz3]

LOL! I can't believe that I missed something simple as that! But thanks anyways though!!

Also are there some sort of API's available stating the classe and rules for objective-c?

[dylanreich]

Originally Posted by javz3

LOL! I can't believe that I missed something simple as that! But thanks anyways though!!

Also are there some sort of API's available stating the classe and rules for objective-c?

Can you clarify what you want? There is documentation available at Apple's site.

[javz3]

Well, to be precise, I'd like to know what each and every statement/method/sign etc mean in objective-c

[equalsabracket]

Originally Posted by dylanreich

I have made a video tutorial for a "Dynamic Hello World" app. Here is the video: Your First iPhone App (Dynamic Hello World)

Good tutorial, made a few things clear and explained it all well.

[dylanreich]

Originally Posted by equalsabracket

Good tutorial, made a few things clear and explained it all well.

Thanks! Glad to be of help.

[ShredderClay]

Looks like a good video tut. I will watch more when I get home. Thanks.

Originally Posted by dylanreich

I have made a video tutorial for a "Dynamic Hello World" app. Here is the video: Your First iPhone App (Dynamic Hello World)

[Buba]

Thank you, Dilan! Good job!

[dylanreich]

Originally Posted by Buba

Thank you, Dilan! Good job!

Thanks.

[n0kx]

Hey dylan,

I sent you a message, but maybe someone here can help, too.

I'm wanting an app that only has:

* 1 button
* 1 table

And when you click the button it loads data in from a data source. (Whatever a data source is called in iOS)

I've been a web developer for years and I'm looking to get into iPhone development. It would be nice to see code for a simple app like this to help me understand things like: where do i put code to make a button load data? how do i populate a table with data? etc...

[nestedloop]

Originally Posted by javz3

Well, to be precise, I'd like to know what each and every statement/method/sign etc mean in objective-c

Well, javz3, if you are coding Objective C from XCode, I guess the Developer Documentation actually does that for you. Whenever you want to know more about a class, just press Alt on your keyboard and double click its name in your code. You will get a short summary box, and from there you can go either to the declaration or to the full documentation (if available) of whatever you have clicked on.

For types, you will find there all the members (properties, methods, operators) with explanations and implementation examples.

Hope this was of some help to you.

[Labyrnth]

That is a great tutorial, little fast but you can pause the video anyway to keep up.
Very nice and thank you for sharing your knowledge with people such as myself.

BTW i just subscribe to your YT Channel now NSLog(@"Thank You!");

[ZVERmedia]

great tutorial dylan, thanks for sharing

[TryingT0Learn]

Originally Posted by nestedloop

Well, javz3, if you are coding Objective C from XCode, I guess the Developer Documentation actually does that for you. Whenever you want to know more about a class, just press Alt on your keyboard and double click its name in your code. You will get a short summary box, and from there you can go either to the declaration or to the full documentation (if available) of whatever you have clicked on.

For types, you will find there all the members (properties, methods, operators) with explanations and implementation examples.

Hope this was of some help to you.

Ipod touch owner here, does it work even if you DON'T always have wifi, cos I rarely do, and the documentation app for Java that I have has to look everything up in an online database, so that doesn't help me at all.
If is does require wifi, is there an app that doesn't. I don't need the entire documentation, cos I'm just starting to explore obj-C after TI-Basic and Java applet programming.

[rambo6376]

Originally Posted by dylanreich

I have made a video tutorial for a "Dynamic Hello World" app. Here is the video: Your First iPhone App (Dynamic Hello World)

Thanks! That was great! Registered just to thank you

[Jackspy]

Dylanreich, your tutorial was AMAZINGLY helpful. I am a beginner and it had helped me out a lot to understand what i was looking at. Will certainly share it.

[MariaVin]

Thank you bro

[moot1]

nice job

[becka]

thank you very much for this tutorial! really helpful!

[jacklee030]

tutorial is really amazing. I am a beginner in iPhone development.. can you let me know how to capture image in iPhone without using camera.. thanks in advance

[dylanreich]

Originally Posted by jacklee030

tutorial is really amazing. I am a beginner in iPhone development.. can you let me know how to capture image in iPhone without using camera.. thanks in advance

Originally Posted by jakedukes3003

Tutorial is superb, I want same info about how to capture image in iPhone without using camera.

It looks like you decided to create two accounts... I'm not sure what you mean by taking pictures without the camera.