Iphone 掐；旋转：未调用UIgestureRecognitizerDelegate

我试图在同一个视图中实现收缩和旋转。有时会调用挤压选择器，有时会调用旋转选择器，好吧，但随后它会继续使用。问题显然是，

gestureRecognitor:（uigestureRecognitor*）gestureRecognitor应该与gestureRecognitor:（uigestureRecognitor*）其他gestureRecognitor

同时识别。为什么不呢？一定是很明显的事情

@interface FaceView : UIView <UIGestureRecognizerDelegate>
{
}
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer;
@end

@implementation FaceView
- (id)initWithFrame:(CGRect)frame
{
    if( self = [super initWithFrame:frame] )
    {
        self.multipleTouchEnabled = YES;
        self.userInteractionEnabled = YES;

        UIRotationGestureRecognizer* rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotationGesture:)];
        [self addGestureRecognizer:rotationRecognizer];
        [rotationRecognizer release];

        UIPinchGestureRecognizer* pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchGesture:)];
        [self addGestureRecognizer:pinchRecognizer];
        [pinchRecognizer release];
    }
    return self;
}

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

- (void)rotationGesture:(UIRotationGestureRecognizer*)gesture
{
    switch( gesture.state )
    {
        case UIGestureRecognizerStateBegan:
            NSLog(@"rotationGesture began");
            break;

        case UIGestureRecognizerStateChanged:
            NSLog(@"rotationGesture changed");
            break;
    }
}

- (void)pinchGesture:(UIPinchGestureRecognizer*)gesture
{
    switch( gesture.state )
    {
        case UIGestureRecognizerStateBegan:
            NSLog(@"pinchGesture began");
            break;

        case UIGestureRecognizerStateChanged:
            NSLog(@"pinchGesture changed");
            break;
    }
}
....

@界面面视图：UIView
{
}
-（BOOL）手势识别器：（UIGestureRecognizer*）手势识别器应与手势识别器：（UIGestureRecognizer*）其他手势识别器同时识别；
@结束
@实现FaceView
-（id）initWithFrame:（CGRect）帧
{
if（self=[super initWithFrame:frame]）
{
self.multipleTouchEnabled=是；
self.userInteractionEnabled=是；
UIRotationGestureRecognizer*rotationRecognizer=[[UIRotationGestureRecognizer alloc]initWithTarget:self action:@selector（Rotation手势：）]；
[self-AddgestureRecognitor:RotationRecognitor]；
[旋转识别器释放]；
UIPinchGestureRecognizer*pinchRecognizer=[[UIPinchGestureRecognizer alloc]initWithTarget:self action:@selector（pinchGesture:）]；
[self-AddgestureRecognitor:PinchreRecogniter]；
[钳形释放]；
}
回归自我；
}
-（BOOL）手势识别器：（UIGestureRecognizer*）手势识别器应与gestureRecognizer：（UIGestureRecognizer*）其他手势识别器同时识别
{
NSLog（@“手势识别器：应与手势识别器同时识别”）；
返回YES；
}
-（无效）旋转手势：（ui旋转手势识别器*）手势
{
开关（手势状态）
{
案例UIgestureRecognitzerStateStart：
NSLog（“旋转手势开始”）；
打破
案例UIgestureRecognitzerStateChanged:
NSLog（@“旋转姿势已更改”）；
打破
}
}
-（无效）pinchGesture：（UIPinchGestureRecognitor*）手势
{
开关（手势状态）
{
案例UIgestureRecognitzerStateStart：
NSLog（@“pinchGesture开始”）；
打破
案例UIgestureRecognitzerStateChanged:
NSLog（@“pinchGesture变更”）；
打破
}
}
....

我必须设置

rotationRecognizer.delegate=self和
pinchRecognizer.delegate=self