小编bla*_*eep的帖子

它与一个UIButton一起工作很好:

 – (void) viewDidLoad {
[super viewDidLoad];

CPBPressureTouchGestureRecognizer* recognizer = [[CPBPressureTouchGestureRecognizer alloc] initWithTarget:self action:@selector(A_button:)];
[A_button addGestureRecognizer: recognizer];
[recognizer release];
}


- (void) A_button: (CPBPressureTouchGestureRecognizer*) recognizer {
[pan_A setGain:recognizer.pressure];
[pan_A] play;
}

我试图使用更多,但只有第二个工作:

- (void) viewDidLoad {
[super viewDidLoad];
CPBPressureTouchGestureRecognizer* recognizer1 = [[CPBPressureTouchGestureRecognizer alloc] initWithTarget:self action:@selector(A_button:)];
[A_button addGestureRecognizer: recognizer1];

CPBPressureTouchGestureRecognizer* recognizer2 = [[CPBPressureTouchGestureRecognizer alloc] initWithTarget:self action:@selector(B_button:)];
[B_button addGestureRecognizer: recognizer1];
[recognizer1 release];
[recognizer2 release];
}

- (void) A_button: (CPBPressureTouchGestureRecognizer*) recognizer1 {
[pan_A setGain:recognizer1.pressure];
[pan_A] play;
}

- (void) B_button: (CPBPressureTouchGestureRecognizer*) recognizer1 { …