ios - 适用于所有类型的 ios 手势识别器

Question

我只需要知道是否有一种方法可以在一个 UIGestureRecognizer 实例中捕获所有类型的手势。

示例：我有一个 UIView，我必须检测对其进行的任何类型的点击，而无需为每种类型的手势创建实例

有没有办法做到这一点 ？

谢谢，

Answer 1

当然是，自己处理低级 UIView 事件（iOS 事件处理指南）：

Responding to Touch Events
– touchesBegan:withEvent:
– touchesMoved:withEvent:
– touchesEnded:withEvent:
– touchesCancelled:withEvent:
Responding to Motion Events
– motionBegan:withEvent:
– motionEnded:withEvent:
– motionCancelled:withEvent:

Answer 2

您可以子类化UIGestureRecognizer该类并将其内部状态更改UIGestureRecognizerStateRecognized为何时开始触摸。

示例代码：

@interface UITouchGestureRecognizer : UIGestureRecognizer

@end

#import <UIKit/UIGestureRecognizerSubclass.h>

@implementation UITouchGestureRecognizer

- (void) reset
{
    [super reset];
}

- (void) touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event
{
    [super touchesBegan:touches withEvent:event];
    self.state = UIGestureRecognizerStateRecognized;
}

@end