Ios PinchGesture激活时不调用旋转手势

我有drawingView和listen UIPangEstureRecognitor、UIRotationGestureRecognitor和UIPinchGestureRecognitor

- (void)viewDidLoad
{
    [super viewDidLoad];

    UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)];
    [self.drawingView addGestureRecognizer:panRecognizer];

    UIRotationGestureRecognizer *rotateRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotateRecognizer:)];
    [self.drawingView addGestureRecognizer:rotateRecognizer];

    UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(pinchRecognizer:)];
    [self.drawingView addGestureRecognizer:pinchRecognizer];
    [self.drawingView reloadData];
}

-(void) pinchRecognizer:(UIPinchGestureRecognizer*) recognizer {
    return;
    NSLog(@"Call scale");
}

- (void)rotateRecognizer:(UIRotationGestureRecognizer*)recognizer {
    NSLog(@"Call rotaion");
}

如果我只选择UIRotationGestureRecognizer或UIPinchGestureRecognizer，它是完美的。但是，如果仅使用UIRotationGestureRecognizer和UIPinchGestureRecognizer调用UIPinchGestureRecognizer，则不会调用UIRotationGestureRecognizer。 我的代码有什么问题？ 我想我会做一个UISegmented来选择模式，UIRotationGestureRecognitor或UIPinchGestureRecognitor，我该怎么做

---

非常感谢

如果您想同时识别多个手势，请尝试使用

手势识别器：应使用手势识别器同时识别，例如：

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

编辑：除了在.h中包含代理外，请确保将
UIgestureRecognitor
的代理设置为self，例如：

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panDetected:)];
panRecognizer.delegate = self;
[self.drawingView addGestureRecognizer:panRecognizer];

UIRotationGestureRecognizer *rotateRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotateRecognizer:)];
rotateRecognizer.delegate = self;
[self.drawingView addGestureRecognizer:rotateRecognizer];

如果其他手势识别器未执行，请使用
requiregestrerecognizertofail:
识别该手势

[rotateRecognizer requireGestureRecognizerToFail: pinchRecognizer];

我在ViewControler.m中添加了函数，在ViewControler.h中添加了函数，但问题没有解决。您需要将手势的代理设置为“self”。在上面的编辑中添加。仅供参考，夹点识别器方法中的NSLog位于“return”之后，因此不会打印出来。