適用於所有類型的ios手勢識別器

Question

我只需要知道是否有辦法在一個UIGestureRecognizer實例中捕獲所有類型的手勢。

示例：我有一個UIView，我必須檢測它上面的任何類型的點擊，而不為每種類型的手勢創建一個實例

有沒有辦法做到這一點 ？

謝謝，

Answer 1

當然，它是自己處理低級UIView事件（ iOS事件處理指南 ）：

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UIGestureRecognizer類，並在觸摸開始時將其內部狀態更改為UIGestureRecognizerStateRecognized 。

示例代碼：

@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