Help dragging UIImageView

[jackosx]

As soon as I begin to drag a UIImageView, my app crashes. I haven't been able to figure out what is wrong with my code, I've looked all over for an answer, but no matter what I try it doesn't work. Here's my code

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event {
	UITouch *touch = [[event allTouches] anyObject];
	if ([touch view] == you) {
		touched = TRUE;
	}
}

- (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event {	
	UITouch *touch = [touches anyObject];
	if (touched == TRUE) {
		CGPoint location = [touch locationInView:self];
		CGPoint xlocation = CGPointMake(location.x, 220); 
		you.center = xlocation;		
		return;
	}
}

[JasonR]

Which line does it crash on? On a first guess, I would suspect "you" should be replaced by "self".

[jackosx]

Originally Posted by JasonR

Which line does it crash on? On a first guess, I would suspect "you" should be replaced by "self".

"you" is the name of the UIImageView, so I think that should remain as that, and I get this warning: incompatible Objective-C types 'struct RoadRunnerViewController *', expected 'struct UIView *' when passing argument 1 of 'locationInView:' from distinct Objective-C type on this line:

CGPoint location = [touch locationInView:self];

The console says this:

2011-02-06 15:08:15.951 RoadRunner[898:207] ******* Accessibility Status Changed: On
2011-02-06 15:08:15.975 RoadRunner[898:207] ********** Loading AX for: com.yourcompany.RoadRunner ************
2011-02-06 15:08:17.190 RoadRunner[898:207] -[RoadRunnerViewController convertPoint:fromView:]: unrecognized selector sent to instance 0x8266d90
2011-02-06 15:08:17.193 RoadRunner[898:207] *** Terminating app due to uncaught exception 'NSInvalidArgumentException', reason: '-[RoadRunnerViewController convertPoint:fromView:]: unrecognized selector sent to instance 0x8266d90'
*** Call stack at first throw:
(
	0   CoreFoundation                      0x026a8b99 __exceptionPreprocess + 185
	1   libobjc.A.dylib                     0x027f840e objc_exception_throw + 47
	2   CoreFoundation                      0x026aa6ab -[NSObject(NSObject) doesNotRecognizeSelector:] + 187
	3   CoreFoundation                      0x0261a2b6 ___forwarding___ + 966
	4   CoreFoundation                      0x02619e72 _CF_forwarding_prep_0 + 50
	5   UIKit                               0x00433697 -[UITouch locationInView:] + 231
	6   RoadRunner                          0x0000399f -[RoadRunnerViewController touchesMoved:withEvent:] + 93
	7   UIKit                               0x00382748 forwardMethod2 + 92
	8   UIKit                               0x00382748 forwardMethod2 + 92
	9   UIKit                               0x002df37a -[UIWindow _sendTouchesForEvent:] + 481
	10  UIKit                               0x002c0cb4 -[UIApplication sendEvent:] + 447
	11  UIKit                               0x002c59bf _UIApplicationHandleEvent + 7672
	12  GraphicsServices                    0x02f88822 PurpleEventCallback + 1550
	13  CoreFoundation                      0x02689ff4 __CFRUNLOOP_IS_CALLING_OUT_TO_A_SOURCE1_PERFORM_FUNCTION__ + 52
	14  CoreFoundation                      0x025ea807 __CFRunLoopDoSource1 + 215
	15  CoreFoundation                      0x025e7a93 __CFRunLoopRun + 979
	16  CoreFoundation                      0x025e7350 CFRunLoopRunSpecific + 208
	17  CoreFoundation                      0x025e7271 CFRunLoopRunInMode + 97
	18  GraphicsServices                    0x02f8700c GSEventRunModal + 217
	19  GraphicsServices                    0x02f870d1 GSEventRun + 115
	20  UIKit                               0x002c9af2 UIApplicationMain + 1160
	21  RoadRunner                          0x00001e74 main + 102
	22  RoadRunner                          0x00001e05 start + 53
)
terminate called after throwing an instance of 'NSException'

[JasonR]

In that case, you should probably use you in that line that's crashing as well:

CGPoint location = [touch locationInView:you];