iOS操作-如何从UIAction获取标准UIButton的事件数据？

对于UIButton，touchDragInside上是否有一种方法可以告诉用户手势的方向？（上、下、左、右）

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谢谢

您应该将按钮子类化，并覆盖beginTrackingWithTouch:withEvent:、continueTrackingWithTouch:withEvent:、endTrackingWithTouch:withEvent:。我在下面代码中输入的日志应该可以让您开始做您想做的事情

 - (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
   NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
    return YES;
}

- (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
    return YES;
}

-(void)endTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
}

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如果您只对整体方向感兴趣，您可以只查看beginTracking编号和endTracking编号，而忽略continueTracking方法。

您应该将按钮子类化，并使用Touch:withEvent:、continueTrackingWithTouch:withEvent:、endTrackingWithTouch:withEvent:、endTrackingWithTouch:withEvent:。我在下面代码中输入的日志应该可以让您开始做您想做的事情

 - (BOOL)beginTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
   NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
    return YES;
}

- (BOOL)continueTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
    return YES;
}

-(void)endTrackingWithTouch:(UITouch *)touch withEvent:(UIEvent *)event {
    NSLog(@"%@",NSStringFromCGPoint([[event.allTouches anyObject] locationInView:self]));
}

如果您只对整体方向感兴趣，那么只需查看beginTracking编号和endTracking编号，而不必考虑continueTracking方法