How to get UITouch location from UIGestureRecognizer
I want to get the UITouch location of my tap from UIGestureRecognizer, but I can not figure out how to from looking at both the documentation and other SO questions. Can one of you guide me?
- (void)handleTap:(UITapGestureRecognizer *)tapRecognizer
{
CCLOG(@"Single tap");
UITouch *locationOfTap = tapRecognizer; //This doesn't work
CGPoint touchLocation = [_tileMap convertTouchToNodeSpace:locationOfTap];
//convertTouchToNodeSpace requires UITouch
[_cat moveToward:touchLocation];
}
FIXED CODE HERE - THIS ALSO FIXES INVERTED Y AXIS
CGPoint touchLocation = [[CCDirector sharedDirector] convertToGL:[self convertToNodeSpace:[tapRecognizer locationInView:[[CCDirector sharedDirector] openGLView]]]];
You can use the locationInView:
method on UIGestureRecognizer. If you pass nil for the view, this method will return the location of the touch in the window.
- (void)handleTap:(UITapGestureRecognizer *)tapRecognizer
{
CGPoint touchPoint = [tapRecognizer locationInView: _tileMap]
}
There is also a helpful delegate method gestureRecognizer:shouldReceiveTouch:
. Just make sure to implement and set your tap gesture's delegate to self.
Keep a reference to the gesture recognizer.
@property UITapGestureRecognizer *theTapRecognizer;
Initiailze the gesture recognizer
_theTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget: self action: @selector(someMethod:)];
_theTapRecognizer.delegate = self;
[someView addGestureRecognizer: _theTapRecognizer];
Listen for delegate methods.
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
CGPoint touchLocation = [_tileMap convertTouchToNodeSpace: touch];
// use your CGPoint
return YES;
}
In Swift:
func handleFrontTap(gestureRecognizer: UITapGestureRecognizer) {
print("tap working")
if gestureRecognizer.state == UIGestureRecognizerState.Recognized
{
print(gestureRecognizer.locationInView(gestureRecognizer.view))
}
}
Try this:
-(void) didMoveToView:(SKView *)view{
oneFingerTap = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(oneTapDetected:)];
oneFingerTap.numberOfTapsRequired=1;
oneFingerTap.numberOfTouchesRequired=1;
[view addGestureRecognizer:oneFingerTap];
}
-(void)oneTapDetected:(UITapGestureRecognizer *)recognizer{
NSLog(@"one tap detec");
tapPositionOneFingerTap = [oneFingerTap locationInView:self.view];
NSLog(@"%f, %f",tapPositionOneFingerTap.x,tapPositionOneFingerTap.y);
}
This prints the coordinates of each tap in your console.