Thank you so much for creating these kinds of tutorials. Most of the info on iPhone programming I have found so far has been aimed at experienced Cocoa programmers so it is great to find something like this for us beginners.

thank you for this tutorial. How can i get it and view offline?

Over on the right side of the page below the play count, there should be a link to download it.

I think I understand what you're wanting to do, and I'm pretty sure that it will require implementing another delegate function. I'll have to play around with it before I can say for sure.

I have tried to recreate this tutorial, but I need to have an actual interface I built in IB to scroll, not an image. I cannot get it to work. I'm using the same code except where the image view is concerned. You mentioned that if you want a view to scroll then use it's view controller in "viewForZoomingInScrollView" function, but how do you do this?

Are you putting the scroll view in the window or in the view controller. For what you're wanting to do, I'd add the scroll view to the view controller's view and then put all my content in there.

How would you do the scroll/zoom using a textview instead of a imageview?

Thanks

in reference to your Microphone issue, let me make a sugestion: Marshal ( as in the guitar amp) actually makes an affordable line of condenser mics that sound great for this... these use what is called "phantom power supply" basically a system of delivering power to the micdown the mic cable... normaly supplied by the mixer, most sound cards don't have phantom so you will probably have to buy an external one I built a battery powered version that is the cleanest sound I have ever heard in 20+ years in pro audio. expect to pay ~$80 used on like e=bay etc...

Thanks for the info. I'll definitely have to look into that.

Hey, Nick, thanks for the tutorial. I've just started watching it, but I had a couple of comments. As of this writing (2008-11-19), IB has a UIScrollView in the library palette. Also, why didn't you connect the scroll view's delegate up in IB, rather than in code? Finally, why not embed the UIImageView in IB, rather than creating it programmatically?

Thanks!

Sometimes IB gets in the way and makes things harder than they should be. Other times, IB obscures some really important things that you should probably understand before using a particular control. If you can do everything in code, it'll make using IB easier. However, the opposite isn't necessarily true.

hi Nick,
what a great tutorial!
It's got me started a lot thank you.
Although I have a question...is there a way to load an image file from the Resources folder instead of a web image?
thanks

hi Nick,
what a great tutorial!
It's got me started a lot thank you.
Although I have a question...is there a way to load an image file from the Resources folder instead of a web image?
thanks

I wonder why no-one has mentioned it yet, but there is a uiscrollview widget in interfacebuilder. It is, however, not in the "Windows, Views & Bars" group, but in "Data Views". Using that widget, you don't need to set things like clipping and zoom levels in code.

Nevertheless, a great tutorial,
Keep up the good work!

Thanks

That's really awesome and useful. I have bookmarked you and I watching your tutorials again and again. Thanks

Awesome tutorial! You made life very simple...

Through IB, I had to set my file owner's delegate to the that scroll view app delegate object rather than the window to get the project to work properly. I'm rather new to this world, so go figure.

Apart from that, thank you!

Thanks, Coach Roebuck! That was the missing piece I was looking for to get it working.

Hi Nick... Bringing up an old thread. I'm using a scrollview with an imageview inside and I want to add flick function to the scrollview.

But all the touch events are sent to the scrollview and my viewcontroller never gets the touch events (touchesBegan is not called)

How can I make sure that any pinch/zoom operations are handled by the scrollview but other touch events are passed to my viewcontroller?

Thanks.

Hey Nick,

Thanks for the great tutorial. I have followed this and works great on simulator (iphone os v 2.2.1). However when deployed on actual device running iphone os 3 beta 5, zoom functionality is not there. Any heads on that?

thanks!
Deepesh

Hey Nick,

I got it, we need to explicitly set multi-touch-enabled attribute in order to get it working. I wonder how it is working in simulator???

Thanks!
Deepesh

thnx nick...this tutorial was really helpful

thnx for the great tutorial.. but is it possible to have the image and pinch and zoom only on the part of the screen and put other controls on the rest of the screen ? u see, i wanted to put an image which I could pinch and zoom and put some labels below the image..Is it possible ?

hi..
Sorry for the previous post.. your video answers that.. but I wanted to know if I could detect touches on the image as shown in the video, so that the coordinates of the point of touch could be recorded.
Could anybody please help me out in this regard ?

Thanks

Thanks a lot for this tutorial. FINALLY feels like I got an entry point to the whole UIScrollView deal! Rock on :)

Hi, Thanks for posting. I'm new at the whole iPhone Ap development and am wondering how to change the sample code so that the image displayed isn't a URL based image but an embedded image in the app. My terminology might be confusing, sorry.

Any help would be appreciated.

Thanks!

Fantastic tutorial!

I've been searching for the past 2 days for a solution to pinch zoom and scroll functionality on a UIImageView, and everywhere suggested pages upon pages of delegate fuddling or loading the image inside a UIWebView as a bit of a hack... I can't believe the solution was really this simple!! Thank you!!

This is great!
Is there a way to make an initial image size so that the user can zoom in from there
My project includes a rather large image and We want the user to see the whole page first before zooming in...then if the user chooses to view the image in depth they have that option