Ios UIgestureRecognitzerDelegate实现不'；行不通

我尝试在我的ViewController中实现UIgestureRecognitzerDelegate，但不知何故，这些方法没有被调用。这是控制器：

#import "DiaryEntryViewController.h"
#import "UINavigationController+BarManagement.h"

@interface DiaryEntryViewController ()<UIGestureRecognizerDelegate>
@property (strong, nonatomic) NSManagedObjectContext *managedObjectContext;
@property (weak, nonatomic) IBOutlet UITextView *textView;

@end

@implementation DiaryEntryViewController

-(void)viewWillAppear:(BOOL)inAnimated{
    [super viewWillAppear:inAnimated];
    self.navigationController.barsHidden = NO;
}

-(void)viewDidAppear:(BOOL)inAnimated{
    [super viewDidAppear:inAnimated];
    [self.navigationController hideBarsWithDelay:2.0];
}

-(void)viewWillDisappear:(BOOL)inAnimated{
    [self.navigationController setBarsHidden:NO animated:YES];
    [super viewWillDisappear:inAnimated];
}

-(NSManagedObjectContext *)managedObjectContext{
    return self.diaryEntry.managedObjectContext;
}

-(BOOL)saveDiaryEntry{
    BOOL theResult = NO;
    NSError *theError = nil;

    theResult = [self.managedObjectContext save:&theError];
    if(!theResult){
        NSLog(@"saveItem %@", theError);
    }

    return theResult;
}

-(CGRect)visibleBounds{
    CGRect theBounds = self.view.bounds;

    if([self respondsToSelector:@selector(topLayoutGuide)] && [self respondsToSelector:@selector(bottomLayoutGuide)]){
        theBounds.origin.y = [self.topLayoutGuide length];
        theBounds.size.height -= [self.topLayoutGuide length] + [self.bottomLayoutGuide length];
    }
    return theBounds;
}

-(IBAction)toogleBars:(id)sender{
    NSLog(@"toogleBars");
    UINavigationController *theController = self.navigationController;
    BOOL theHiddenFlag = theController.barsHidden;

    [theController setBarsHidden:!theHiddenFlag animated:YES];
    if(theHiddenFlag){
        [theController hideBarsWithDelay:2.0];
    }

}

-(BOOL)gestureRecognizerShouldBegin:(UIGestureRecognizer *)inRecognizer{
    NSLog(@"gestureRecognizerShouldBegin");
    UIView *theView = self.textView;
    CGPoint thePoint = [inRecognizer locationInView:theView];

    return !CGRectContainsPoint(theView.bounds, thePoint);
}

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldBeRequiredToFailByGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
    NSLog(@"bla");

    return YES;
}

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

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

@end

#导入“DiaryEntryViewController.h”
#导入“UINavigationController+BarManagement.h”
@接口DiaryEntryViewController（）
@属性（强，非原子）NSManagedObjectContext*managedObjectContext；
@属性（弱、非原子）IBOutlet UITextView*textView；
@结束
@实现DiaryEntryViewController
-（void）视图将出现：（BOOL）无生命{
[超级视图将显示：无生命]；
self.navigationController.barsHidden=否；
}
-（void）视图显示：（BOOL）无生命{
[超级视图显示：无生命]；
[self.navigationController Hidebars with Delay:2.0]；
}
-（void）视图将消失：（BOOL）无生命{
[self.navigationController setBarsHidden:否动画：是]；
[超级视图将消失：无生命]；
}
-（NSManagedObjectContext*）managedObjectContext{
返回self.diaryEntry.managedObjectContext；
}
-（BOOL）saveDiaryEntry{
BOOL-theResult=否；
n错误*错误=零；
结果=[self.managedObjectContext保存：&错误]；
如果（！theResult）{
NSLog（@“saveItem%@”，错误）；
}
返回结果；
}
-（CGRect）可见边界{
CGRect theBounds=self.view.bounds；
if（[self-respondsToSelector:@selector（topLayoutGuide）]&&[self-respondsToSelector:@selector（topLayoutGuide）]）{
theBounds.origin.y=[self.topLayoutGuide-length]；
bounds.size.height-=[self.topLayoutGuide length]+[self.bottomLayoutGuide length]；
}
返回边界；
}
-（iAction）toogleBars:（id）发送方{
NSLog（@“Toogebars”）；
UINavigationController*控制器=self.navigationController；
BOOL theHiddenFlag=控制器.barsHidden；
[控制器设置隐藏：！隐藏标志已设置动画：是]；
如果（隐藏标志）{
[控制器隐藏延迟：2.0]；
}
}
-（BOOL）手势识别器应在识别器中开始：（UIGestureRecognizer*）{
NSLog（@“手势识别器应开始”）；
UIView*theView=self.textView；
CGPoint thePoint=[在识别器位置视图中：视图]；
return！CGRectContainsPoint（theView.bounds，thePoint）；
}
-（BOOL）手势识别器：（UIGestureRecognizer*）手势识别器应不需要AI手势识别器：（UIGestureRecognizer*）其他手势识别器{
NSLog（@“bla”）；
返回YES；
}
-（BOOL）GestureRecognitor:（UIGestureRecognitor*）GestureRecognitor应要求GestureRecognitor:（UIGestureRecognitor*）其他GestureRecognitor{
NSLog（@“ble”）；
返回YES；
}
-（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（“blä”）；
返回YES；
}
@结束

---

它确实调用toogleBars方法，但不调用任何识别器方法。

不要忘记声明识别器，并将其添加到要检测轻触或滑动的视图中

例如：

在VC中添加一个属性，如“theTapRecognizer”

Alloc和init识别器：

self.theTapRecognizer = [[UITapGestureRecognizer alloc] initWithTarget: self action: @selector(someMethod:)];
self.theTapRecognizer.delegate = self;
[someView addGestureRecognizer: selftheTapRecognizer];

someView是要初始化识别器的视图的占位符文本，它可以是整个self.view或某个子视图， 您可以使用以下委托方法监听与该手势识别器的任何交互

-(BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch

---

假设您已从情节提要中添加了

UIGestureRecognitor

，则需要记住CTRL+Drag将手势对象拖动到

UIViewController

黄色圆圈图像并设置代理

您的

UIGestureRecognitor

对象将位于

UIViewController

视图的顶部。CTL将其拖动到黄色圆圈ViewController图标

然后，此弹出窗口将显示并选择“委托”，以便GeSutureRecognitor将使用委托方法

---

您尚未声明任何UIgestureRecognitor实例，仅添加代理还不够我认为您是通过情节提要直接添加UIgestureRecognitor的？