uitouch

Lets say I have view1 which is intercepting touch events and view2 which is not. Can view1 pass those events to view2 and call [view2 touchesBegin] [view2 touchesMoved]...etc? Yes, sometimes, maybe. The technique you're asking about is known as event forwarding . I'll refer you to the Forwarding Touch Events section of the Event Handling Guide for iOS , which says the following: The classes of the UIKit framework are not designed to receive touches that are not bound to them; in programmatic terms, this means that the view property of the UITouch object must hold a reference to the framework

How to get touch on a particular view. I am using CGPoint Location = [[touches anyObject] locationInView:self.view ]; but want to trigger the action only if an particular subView is clicked. How to do this. I got the answer myself...but thanks other which helped me on this here it is UITouch *touch ; touch = [[event allTouches] anyObject]; if ([touch view] == necessarySubView) { //Do what ever you want } Sat Try this //here enable the touch - (void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { // get touch event UITouch *touch = [[event allTouches] anyObject]; CGPoint

I have the following code to determine if a touch is within an image view in my table cell. However, it doesn't work. I compared the two with CGRectContainsPoint however, it doesn't work. Here is the code: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { // Declare the touch and get it's location UITouch *touch = [touches anyObject]; CGPoint touchLocation = [touch locationInView:self]; if (CGRectContainsPoint(myImageView.frame, touchLocation)) { NSLog(@"Tapped image view"); } } Thanks for the help! However, it doesn't work. Please be more specific. UITouch *touch = [touches

I am implementing a simple iOS solitaire game that allows the user to drag the cards around in the usual way. The cards are represented with the UIView subclass CardView . All the card view's are siblings which are subviews of SolitaireView . The following snippet tries to "bring a card to the front" so that it is above all the other views as it is being dragged: -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { UITouch *touch = [touches anyObject]; if (touch.view.tag == CARD_TAG) { CardView *cardView = (CardView*) touch.view; ... [self bringSubviewToFront:cardView]; ... } }

i wonder if you guys have a sample code adding and move UIImageView on touch and also detect if there is an UIImageView there so i can't add UIImageView on top of it. EDIT: clearer question 1. i wanna add an cups(UIImageView) when i touch the view but do not wan the cup(UIImageView) to stack. i wanna move the UIImageView but will bounce back to the original position if there is an UIImageView there so it will not stack the UIImageView already there. thanks for reading my question and appreciated your helps cheers des This should let you going… Create two ivars in your header file: UIImageView

This question already has an answer here: draw line between two points in iphone? 3 answers I want to make a project in which I have to touch one dot and connect it with another dot and after connect it to another dot. When I connect one dot with another dot the line will create between them. Actually when I click/ touch one dot The line will show and When I touch second dot the line will create between the two dots. I am not able to do this yet, I am trying and searching on the net but unable to find the solution yet. This is my need Like this one https://play.google.com/store/apps/details?id

I've got a stack of subviews that are all have user interactive sections (children) and all full screen. The problem is that, if I touch down on a non-interactive section at the top of the stack, it won't then propagate that touch across the rest of the stack. My setup: view A --view B (full screen container, not itself interactive but has interactive subviews) ----view B1 (interactive) ----view B2 (interactive) --view C (same as B) ----view C1 (interactive) ----view C2 (interactive) B and C are both full screen, but B1/B2/C1/C2 are only small sections of the screen. [a addSubview:b]; [a

is there an easy way to not draw this points in my lines? I don't know why this points are there because i never release my finger from screen during drawing of a line. I got the code from a drawing example. // draw a line - (void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event { mouseSwiped = YES; UITouch *touch = [touches anyObject]; CGPoint currentPoint = [touch locationInView:self.view]; currentPoint.y -= 0; // 20 only for 'kCGLineCapRound' UIGraphicsBeginImageContext(self.view.frame.size); //Albert Renshaw - Apps4Life [drawImage.image drawInRect:CGRectMake(0, 0, drawImage.frame