iphone - 手势识别器在 UIScrollView 子类中不起作用

Question

我有子类UIScrollView，并且UIScrollView我的笔尖中有一个，手势工作正常，但是当我将UIScrollViewIdentity Inspector 中的类更改为我的子类时UIScrollView，手势停止工作，并且我的界面生成器中有这个警告。

ScrollView does not have an outlet collection named gestureRecognizors.

我的子类中还有一个代表，它也发出警告：

这是子类：

@protocol ScrollViewDelegate <NSObject>

-(void)onScrollViewTouch;

@end


@interface ScrollView : UIScrollView <UIScrollViewDelegate>

@property(nonatomic, retain) id<ScrollViewDelegate> subDelegate;

@end

这是 ScrollView.m

@implementation ScrollView

@synthesize subDelegate;

- (id)initWithFrame:(CGRect)frame {
self = [super initWithFrame:frame];
if (self) {
    self.canCancelContentTouches = NO;
    self.delaysContentTouches = NO;
    [self setAutoresizingMask:UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight];
    [super setDelegate: self];
}
return self;
}

-(void)touchesBegan:(NSSet *)touches withEvent:(UIEvent *)event{
[super touchesBegan:touches withEvent:event];
[delegate onScrollViewTouch];
}

@end

谁能建议我在这里做错了什么？感谢大家 ：）