Question

在我的spritekit游戏中，我试图让它同时识别2个UISwipeGestureRecognizer，但是，我无法这样做。任何帮助将非常感谢，提前感谢。以下是我的代码......

在ViewDidLoad中：

UISwipeGestureRecognizer *leftSwipe1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(leftSwiped1:)];

[leftSwipe1 setDirection:UISwipeGestureRecognizerDirectionLeft];
[leftSwipe1 setNumberOfTouchesRequired:1];
[self.view addGestureRecognizer:leftSwipe1];

UISwipeGestureRecognizer *rightSwipe1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(rightSwiped1:)];

[rightSwipe1 setDirection:UISwipeGestureRecognizerDirectionRight];
[rightSwipe1 setNumberOfTouchesRequired:1];
[self.view addGestureRecognizer:rightSwipe1];

在ViewDidLoad之后：

-(void)rightSwiped1:(UIGestureRecognizer *)gestureRecognizer {

CGPoint pt = [gestureRecognizer locationInView:self.view];
if(pt.x < (self.view.bounds.size.width/2))
{
    SKNode *person1 = [self childNodeWithName:@"person1"];
    SKAction *moveRight = [SKAction moveTo:CGPointMake(CGRectGetMidX(self.frame) - 90, CGRectGetMidY(self.frame) + 200) duration:0.1f];
    [person1 runAction:moveRight];
} else if (pt.x > (self.view.bounds.size.width/2)) {

    SKNode *person2 = [self childNodeWithName:@"person2"];
    SKAction *moveRight2 = [SKAction moveTo:CGPointMake(CGRectGetMidX(self.frame) + 400, CGRectGetMidY(self.frame) + 200) duration:0.1f];
    [person2 runAction:moveRight2];
}


}
-(void)leftSwiped1:(UIGestureRecognizer *)gestureRecognizer {
CGPoint pt = [gestureRecognizer locationInView:self.view];
if(pt.x < (self.view.bounds.size.width/2))
{
    SKNode *person1 = [self childNodeWithName:@"person1"];
    SKAction *moveLeft = [SKAction moveTo:CGPointMake(CGRectGetMidX(self.frame) - 400, CGRectGetMidY(self.frame) + 200) duration:0.1f];
    [person1 runAction:moveLeft];
} else if (pt.x > (self.view.bounds.size.width/2)) {

    SKNode *person2 = [self childNodeWithName:@"person2"];
    SKAction *moveLeft2 = [SKAction moveTo:CGPointMake(CGRectGetMidX(self.frame) + 90, CGRectGetMidY(self.frame) + 200) duration:0.1f];
    [person2 runAction:moveLeft2];
}
}
-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)gestureRecognizer{
return YES;
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer   shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
return YES;
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch{
return YES;
}

Answer 1

您永远不会分配delegate的{{1}}属性，因此您的委托方法永远不会被调用。

您只需执行以下操作即可解决此问题：

UISwipeGestureRecognizers

确保您也符合UISwipeGestureRecognizer *leftSwipe1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(leftSwiped1:)]; leftSwipe1.delegate = self; [leftSwipe1 setDirection:UISwipeGestureRecognizerDirectionLeft]; [leftSwipe1 setNumberOfTouchesRequired:1]; [self.view addGestureRecognizer:leftSwipe1]; UISwipeGestureRecognizer *rightSwipe1 = [[UISwipeGestureRecognizer alloc] initWithTarget:self action:@selector(rightSwiped1:)]; rightSwipe1.delegate = self; [rightSwipe1 setDirection:UISwipeGestureRecognizerDirectionRight]; [rightSwipe1 setNumberOfTouchesRequired:1]; [self.view addGestureRecognizer:rightSwipe1];协议：

UIGestureRecognizerDelegate

UISwipeGestureRecognizers不会被同时识别

1 个答案: