Can you attach a UIGestureRecognizer to multiple views?
For Swift 3 in case anyone requires this: Based on Bhavik Rathod Answer above.
func setGestureRecognizer() -> UIPanGestureRecognizer {
var panRecognizer = UIPanGestureRecognizer()
panRecognizer = UIPanGestureRecognizer (target: self, action: #selector(pan(panGesture:)))
panRecognizer.minimumNumberOfTouches = 1
panRecognizer.maximumNumberOfTouches = 1
return panRecognizer
}
///set the recognize in multiple views
view1.addGestureRecognizer(setGestureRecognizer())
view2.addGestureRecognizer(setGestureRecognizer())
I got around it by using the below.
for (UIButton *aButton in myButtons) {
UILongPressGestureRecognizer *longPress = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(handleLongPress:)];
longPress.minimumPressDuration=1.0;
[aButton addGestureRecognizer:longPress];
[longPress release];
}
Then in my handleLongPress method I just set a UIButton equal to the view of the gesture recognizer and branch what I do based upon that button
- (void)handleLongPress:(UILongPressGestureRecognizer*)gesture {
if ( gesture.state == UIGestureRecognizerStateEnded ) {
UIButton *whichButton=(UIButton *)[gesture view];
selectedButton=(UIButton *)[gesture view];
....
}
A UIGestureRecognizer
is to be used with a single view. I agree the documentation is spotty. That UIGestureRecognizer
has a single view
property gives it away:
view
The view the gesture recognizer is attached to. (read-only)
@property(nonatomic, readonly) UIView *view
Discussion You attach (or add) a gesture recognizer to a UIView object using the addGestureRecognizer: method.