iPhone SDK Tutorial: Touches in a UIImageView Part 2

[bitziomedia]

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[CitydriftSL]

hey nice tutorial, do you now how to make a program where you can move a picture only left or right, without up and down? so only the X-axis

please help me :)

[cascarrabias30]

Can you do a tutorial returning the rgb values of a pixel touched?

[ulbricho]

What is the code if my image is moving and disappear when touched?

Do I need to change the "anyObject? How does it change?

I hope you can help me

thanks

[rabies79]

He sounds like a steriotypical nerd

[tortugatortilas]

hi i created an image in my app that the user can drag around however i would like it to follow a specific path so that when the user drags it it will not go outside of the path. how do i do this?

[michelegavazzeni]

What is you don't have a reference to the squareView?

[RealmsStudio]

id it posible to make 2 imageviews and drag them separate

i tried it but then the image that i drag stays visible, and the other is gone

im using the 4.0 sdk

[tombofrog]

I wonder if this guy has ever got laid?

[softdev1]

Just your mom

[tombofrog]

Whoops, I forgot!

[softdev1]

heh, I just couldn't resist. No offense anyway.

[siroganes]

uhm....

CGPoint location = [touch locationInView:touch.view];

if(CGRectContainsPoint([square­View frame], location)){

squareView.center = location;

}

[mlmusic1]

@siroganes THANK YOU so much

[edgardrodriguezruiz]

MY question is how do you get a swipe images like the pictures app on the iphone?

if you have two or more images and use

Tracking a swipe gesture in a view.

shoot me a example please

thanks

[73Minstrel]

Got it I used the != instead of the ==

[73Minstrel]

Follwed , got no errors but I cant get the image to move, I am assuming you just click and drag with mouse?

[Techlur]

great tut!

does any1 know a way to keep the object centered in the screen, and instead of moving.the squear, just keep it in place but spin it around with ur finger? thank you!

[vasil9v]

Hmm... is it because you want to implement something like that spinning vinyl app? =)

You can use the transform property of the UIView.

Change their assignment to self.center to something like: self.transform = CGAffineTransformMakeRotation(­location.y / 3.14159265); // units in radians

[qwertisdirty]

and this vid is the reason I'm never buying a mac, it's either to complex and cool, or to simple and really boring, pc's are rarely complex, thier code is more self explanitory, and you can do alot of cool things with them

[hiredman]

This iPhone programming not Mac programming.

Also look-up the difference between "to" and "too" you might be shocked at what you find out.

PS No one cares what computer you use. Really.

[beak90sfx]

please make a version of this that uses interface builder. i want to do more complex layouts but don't want to learn how to code it.

[bigmeierhouse]

What does Synthesize do?

[a420aDay]

automatically provides getter/setter methods for what you synthesized

[fernbe]

Good job, I was looking for info how to have UIImageView handle a touch event.

[zeeaziz]

how can i have the red circle on click?

[legoman1895]

how did you learn how to do codes. I really want to make an iphone app but i don't know how to make codes. Please help!

[nuxxun]

really great tutorial. much appreciated. well described, easy to follow, a lot of help, BUT, it didn't work. the image couldn't be moved around when all was said and done.

thanks though!

[STN1953]

This tutorial provides a nice introduction to the iPhone SDK. I have two suggestions for improvements.

(1) The two warnings in Touches...AppDelegate.m can be avoided by adding #import "MainView.h" at the top.

(2) In touchesMoved:withEvent, [touch view] is never equal to squareView (using firmware 2.0 or 2.1). Instead, the intended condition can be achieved by testing CGRectContainsPoint([squareVie­w bounds],[touch locationInView:squareView]).

[rob3456]

can you say why the image does not follow the touch when the touch changes quickly? Is this a quirk of the simulator? When moving the 'finger' quickly, the image stops following it. Is there a limit to the updating of the method?

[Xrealize]

thx a lot, CGRectContainsPoint([squareVie­w bounds],[touch locationInView:squareView]) works!

[halfbrick8]

Great work dude. Very good tutorial.

[nadnerb33]

I couldn't get it working.

I copied all code and got no errors when building but the image wouldn't move when dragged.

I'm using the latest SDK, could this be why as I couldn't select the same template as required in the first video.

Anyway, thanks for the vid, its helped me to understand what's going on a bit better as I'm a complete n00b!

[svguerin3]

Same thing for me. Something changed in the last SDK that is causing the "if ([touch view] == squareView)" never to be true. However, I'm not experienced enough to know why this is. :(

Taking a look at the sample app you can download, it has this same if-statement logic, but different way to declare our Views.. Thoughts from anyone? This is driving me nuts.

[supasob]

nice work, if you can make more videos about sdk for slow people that would be great. i would like to make a few apps of my own. thankx

[bladnman]

Outstanding on coding, pacing, description, and screencasting. Bravo. Make more!

[zinbielz]

excellent thanks!

[coolvishalpatil]

This is very execellent video for new comers in iPhone application development .

Thanks for your valuable guidance . should i get contact id for iPhone development communication .

[drumnkyle]

Thank you very much for creating this. I think that it was very helpful. It would be especially helpful for me if you could do a tutorial on switching out image views using a view controller and setting button actions for mailto and URL's.