SpriteKit手势识别器

Question

嗨，我试图用手势识别与我的精灵套件的游戏，我写了这个代码

@interface GameScene() <UIGestureRecognizerDelegate>{ 

    UISwipeGestureRecognizer *swipeGestureLeft; 
    ISwipeGestureRecognizer *swipeGestureRight; 
} 
@end 

@implementation GameScene 
-(id)initWithSize:(CGSize)size{ 

    if(self = [ super initWithSize:size]){ 

    } 

    return self; 
} 

-(void)didMoveToView:(SKView *)view{ 

    swipeGestureLeft = [[UIGestureRecognizer alloc]initWithTarget:self action:@selector(swipeLeft)]; 
    [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft]; 
    [view addGestureRecognizer:swipeGestureLeft]; 

    swipeGestureRight = [[UIGestureRecognizer alloc]initWithTarget:self action:@selector(swipeRight)]; 
    [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight]; 
    [view addGestureRecognizer:swipeGestureRight]; 
} 

- (void) willMoveFromView: (SKView *) view { 

    [view removeGestureRecognizer: swipeGestureLeft ]; 
    [view removeGestureRecognizer: swipeGestureRight]; 
} 

-(void)swipeLeft:(UISwipeGestureRecognizer*) recognizer{ 

    [email protected]"Left"' 
} 

-(void)swipeRight:(UISwipeGestureRecognizer*) recognizer{ 

    [email protected]"Right"' 
} 


@end 

我觉得每一件事情是确定的，但我的手势将无法正常工作，我不有错误信息，是否有东西丢失我应该添加到我的应用程序，或者我应该添加一些东西到我的视图控制器，或者你们可以建议我一个totorial显示我如何使用手势与sprite套件，

Answer 1

试试这个代码，它适用于我。你有一个错字，我猜...

@interface GameScene() <UIGestureRecognizerDelegate>{ 

     UISwipeGestureRecognizer *swipeGestureLeft; 
     UISwipeGestureRecognizer *swipeGestureRight; 
     UITapGestureRecognizer *doubleTapGesture; 
    } 

    @end 

    @implementation GameScene 

    -(void)didMoveToView:(SKView *)view { 
     /* Setup your scene here */ 

     //You should use UISwipeGestureRecognizer instead of UIGestureRecognizer here. 

     swipeGestureLeft = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeLeft:)]; 
     [swipeGestureLeft setDirection:UISwipeGestureRecognizerDirectionLeft]; 
     [view addGestureRecognizer:swipeGestureLeft]; 


     //Note that swipeRight has a parameter, so you have to change swipeRight to swipeRight: to silent the compiler warning. 
     swipeGestureRight = [[UISwipeGestureRecognizer alloc]initWithTarget:self action:@selector(swipeRight:)]; 
     [swipeGestureRight setDirection:UISwipeGestureRecognizerDirectionRight]; 
     [view addGestureRecognizer:swipeGestureRight]; 


     //double tap detection 
     doubleTapGesture = [[UITapGestureRecognizer alloc]initWithTarget:self action:@selector(tapTap:)]; 
     [doubleTapGesture setNumberOfTapsRequired:2]; 
     [view addGestureRecognizer:doubleTapGesture]; 
    } 

    -(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event { 
     /* Called when a touch begins */ 


    } 

    -(void)update:(CFTimeInterval)currentTime { 
     /* Called before each frame is rendered */ 
    } 

    - (void) willMoveFromView: (SKView *) view { 


     [view removeGestureRecognizer: swipeGestureLeft ]; 

     [view removeGestureRecognizer: swipeGestureRight]; 

     [view removeGestureRecognizer: doubleTapGesture]; 
    } 

    -(void)swipeLeft:(UISwipeGestureRecognizer*) recognizer{ 

     NSLog(@"Left"); 

    } 

    -(void)swipeRight:(UISwipeGestureRecognizer*) recognizer{ 

     NSLog(@"Right"); 


    } 

    -(void)tapTap:(UITapGestureRecognizer*) recognizer{ 

     NSLog(@"Tap tap"); 

    } 

    @end