我有一个新的手势,(触摸,拖动到其他,释放),我希望其行为与touchUpInside或touchDown或在界面构建器中绑定IBActions时弹出的任何列表相同。 (即我希望我的自定义列表在列表中,以便我可以将它们绑定到IBActions)
有没有办法做到这一点,还是我需要以编程方式将事物联系在一起?
这是我所做的一个非常简化的版本,它将我的对象从任何其他特定类中解耦,以防其他人试图完成此任务:
@interface PopupButton : UIView {
}
//These are the replacement "IBAction" type connections.
@property (nonatomic) SEL tapAction;
@property (nonatomic, assign) id tapTarget;
@property (nonatomic) SEL dragAction;
@property (nonatomic, assign) id dragTarget;
@end
@implementation PopupButton
-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
//Your custom code to detect the event
}
-(void)touchesMoved:(NSSet *)touches withEvent:(UIEvent *)event{
//Your custom code to detect the event
}
-(void)touchesEnded:(NSSet *)touches withEvent:(UIEvent *)event{
//Here we'll say I detected the event I called "drag".
if (!(self.dragTarget && self.dragAction)) {
NSLog(@"No target for drag.");
abort();
} else {
[self.dragTarget performSelector:self.dragAction];
}
//And here I detected the event "tap".
if (!(self.tapTarget && self.tapAction)) {
NSLog(@"No target for single tap.");
abort();
} else {
[self.tapTarget performSelector:self.tapAction];
}
}
-(void)touchesCancelled:(NSSet *)touches withEvent:(UIEvent *)event{
//Your custom code to detect the event
}
@end
现在要设置它,在视图控制器中我想把这些操作绑定在一起代替:
- (void)viewDidLoad
{
[equalsPopupButton setTapTarget:self];
[equalsPopupButton setTapAction:@selector(equalsPress)];
[equalsPopupButton setDragTarget:self];
[equalsPopupButton setDragAction:@selector(isNamingResult)];
}
显然不如选项+拖动那么优雅,但它可以完成工作,而不会使我的代码变得僵硬和附加。希望这有助于某人。
答案 0 :(得分:0)
无法以这种方式绑定功能。您应该在代码中使用辅助函数,并从IBaction函数和手势识别器函数调用它。