Reconocimiento de gestos y acciones de botones
Tengo una jerarquía de vistas que se ve algo como esto:
UIView (A)
UIView > UIImageView
UIView > UIView (B)
UIView > UIView (B) > Rounded Rect Button
UIView > UIView (B) > UIImageView
UIView > UIView (B) > UILabel
He adjuntado reconocedor de gestos a mi UIView(B). El problema que estoy enfrentando es que no recibo ninguna acción para el botón Rect Redondeado que está dentro de la UIView (B). El reconocedor de gestos singleTap captura / anula el Retoque del botón Dentro del evento.
¿Cómo puedo hacer que funcione? Pensé que la jerarquía de la cadena de respuesta se asegurará de que el evento de toque del botón se dará preferencia, y ¡se activará! ¿Qué me estoy perdiendo?
Aquí hay un código relacionado:
#pragma mark -
#pragma mark View lifecycle (Gesture recognizer setup)
- (void)viewDidLoad {
[super viewDidLoad];
// double tap gesture recognizer
UITapGestureRecognizer *dtapGestureRecognize = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(doubleTapGestureRecognizer:)];
dtapGestureRecognize.delegate = self;
dtapGestureRecognize.numberOfTapsRequired = 2;
[self.viewB addGestureRecognizer:dtapGestureRecognize];
// single tap gesture recognizer
UITapGestureRecognizer *tapGestureRecognize = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(singleTapGestureRecognizer:)];
tapGestureRecognize.delegate = self;
tapGestureRecognize.numberOfTapsRequired = 1;
[tapGestureRecognize requireGestureRecognizerToFail:dtapGestureRecognize];
[self.viewB addGestureRecognizer:tapGestureRecognize];
// add gesture recodgnizer to the grid view to start the edit mode
UILongPressGestureRecognizer *pahGestureRecognizer = [[UILongPressGestureRecognizer alloc] initWithTarget:self action:@selector(longPressGestureRecognizerStateChanged:)];
pahGestureRecognizer.delegate = self;
pahGestureRecognizer.minimumPressDuration = 0.5;
[self.viewB addGestureRecognizer:pahGestureRecognizer];
[dtapGestureRecognize release];
[tapGestureRecognize release];
[pahGestureRecognizer release];
}
#pragma mark -
#pragma mark Button actions
- (IBAction)buttonTouchUpInside:(id)sender {
NSLog(@"%s, %@", __FUNCTION__, sender);
}
#pragma mark -
#pragma mark Gesture recognizer actions
- (void)singleTapGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer {
NSLog(@"%s", __FUNCTION__);
}
- (void)doubleTapGestureRecognizer:(UIGestureRecognizer *)gestureRecognizer {
NSLog(@"%s", __FUNCTION__);
}
- (void)longPressGestureRecognizerStateChanged:(UIGestureRecognizer *)gestureRecognizer {
switch (gestureRecognizer.state) {
case UIGestureRecognizerStateEnded: {
NSLog(@"%s", __FUNCTION__);
break;
}
default:
break;
}
}
6 answers
En el método "shouldReceiveTouch" debe agregar una condición que devolverá NO si el toque está en el botón.
Esto es de apple SimpleGestureRecognizers ejemplo.
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
// Disallow recognition of tap gestures in the segmented control.
if ((touch.view == yourButton)) {//change it to your condition
return NO;
}
return YES;
}
Espero que ayude
Editar
Como Daniel señaló, debes conformarte a UIGestureRecognizerDelegate
para que funcione.
Shani
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2015-02-26 17:47:54
También tuve el mismo problema , luego intenté con
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
if ([touch.view isKindOfClass:[UIButton class]]) { //change it to your condition
return NO;
}
return YES;
}
Ahora funciona perfectamente.........
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2011-07-26 11:40:39
En términos generales, utilizamos a continuación delegar método para evitar el tacto en todo tipo de Uicontroles:
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
if (([touch.view isKindOfClass:[UIControl class]])) {
return NO;
}
return YES;
}
Nota: NO haga esta comprobación (compruebe el reconocedor.view class type) el gestureRecognizerShouldBegin, no va a funcionar.
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2012-09-04 07:53:08
Aquí está una Swift 3.0 versión:
extension UIViewController: UIGestureRecognizerDelegate {
public func gestureRecognizer(_ gestureRecognizer: UIGestureRecognizer, shouldReceive touch: UITouch) -> Bool {
if touch.view is UIButton {
return false
}
return true
}
No olvides:
Make your tapper object delegate to self (e.g: tapper.delegate = self)
Warning: date(): Invalid date.timezone value 'Europe/Kyiv', we selected the timezone 'UTC' for now. in /var/www/agent_stack/data/www/ajaxhispano.com/template/agent.layouts/content.php on line 61
2016-12-07 16:12:37
Aquí está una versión rápida:
func gestureRecognizer(gestureRecognizer: UIGestureRecognizer, shouldReceiveTouch touch: UITouch) -> Bool {
if (touch.view!.isKindOfClass(UIButton)) {
return false
}
return true
}
No olvides:
- Haz que tu clase se ajuste a
UIGestureRecognizerDelegate
- Haga que su objeto tapper delegue a sí mismo (p. ej.:
tapper.delegate = self
)
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2015-12-30 05:46:14
La mejor solución es, a mi juicio, usar el fragmento de código a continuación:
-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch {
CGPoint touchLocation = [touch locationInView:self.view];
return !CGRectContainsPoint(self.menuButton.frame, touchLocation);
}
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2014-11-10 15:56:27