Ios 使用UIgestureRecognitor同时缩放、旋转和移动

我不明白为什么我的缩放、旋转和移动不能同时工作

我看了很多例子，但似乎找不到问题所在。 首先，我认为这是一个

手势识别器应该与手势识别器同时识别的问题，但这不是请帮助：）

这是我的密码：

@implementation StoryEditorPageHolderView   
- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldRecognizeSimultaneouslyWithGestureRecognizer:(UIGestureRecognizer *)otherGestureRecognizer{
    return YES;
}
- (id)initWithProperty:(Property *)property scale:(CGFloat)scaleFactor pos:(CGPoint)point dustbin:(DustbinView *)dustBin{
    self = [super initWithFrame:CGRectZero];
    if(self){
        self.imageView = [[UIImageView alloc] initWithImage:[UIImage imageNamed:property.imageName]];


        self.frame = CGRectMake(0, 0, self.imageView.frame.size.width, self.imageView.frame.size.height);
        [self addSubview:_imageView];

        UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scale:)];
        [self addGestureRecognizer:pinchRecognizer];

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

        UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)];
        [panRecognizer setMinimumNumberOfTouches:1];
        [panRecognizer setMaximumNumberOfTouches:1];
        [self addGestureRecognizer:panRecognizer];

        UITapGestureRecognizer *tapProfileImageRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
        [tapProfileImageRecognizer setNumberOfTapsRequired:2];
        [self addGestureRecognizer:tapProfileImageRecognizer];



    }
    return self;
}

- (void)rotate:(UIRotationGestureRecognizer *)rotate {
    if (rotate.state == UIGestureRecognizerStateBegan) {
        prevRotation = 0.0;
    }

    float thisRotate = rotate.rotation - prevRotation;
    prevRotation = rotate.rotation;
    self.transform = CGAffineTransformRotate(self.transform, thisRotate);
}

- (void)scale:(UIPinchGestureRecognizer *)pinch {
    if (pinch.state == UIGestureRecognizerStateBegan)
        prevPinchScale = 1.0;

    float thisScale = 1 + (pinch.scale-prevPinchScale);
    prevPinchScale = pinch.scale;
    self.transform = CGAffineTransformScale(self.transform, thisScale, thisScale);
}

-(void)move:(UIPanGestureRecognizer *)pan {

    if (pan.state == UIGestureRecognizerStateBegan){
        prevPanPoint = [pan locationInView:self.superview];
    }

    CGPoint curr = [pan locationInView:self.superview];

    float diffx = curr.x - prevPanPoint.x;
    float diffy = curr.y - prevPanPoint.y;

    CGPoint centre = self.center;
    centre.x += diffx;
    centre.y += diffy;
    self.center = centre;

    prevPanPoint = curr;
}
@end

在.h文件中，我还将
uigesturecognifizerdelegate
作为
delegate
：

#import <Foundation/Foundation.h>


@class Property;
@class DustbinView;

@interface StoryEditorPropertyView : UIView <UIGestureRecognizerDelegate>

@property (strong, nonatomic) UIPanGestureRecognizer *panRecognizer;
@property (strong, nonatomic) UIPinchGestureRecognizer *pinchRecognizer;
@property (strong, nonatomic) UIRotationGestureRecognizer *rotationRecognizer;
@property (strong, nonatomic) UITapGestureRecognizer *tapProfileImageRecognizer;
@property (strong, nonatomic) UIImageView *imageView;
@property (strong, nonatomic) Property *property;
@property (nonatomic) CGPoint pointBegin;
@property (nonatomic) bool isRemoveable;
@property (nonatomic) CGFloat beginScale;
@property (strong, nonatomic) DustbinView *dustBin;

- (id)initWithProperty:(Property *)property scale:(CGFloat)scaleFactor pos:(CGPoint)point dustbin:(DustbinView *)dustBin;

@end

#导入
@阶级属性；
@类视图；
@接口StoryEditorPropertyView:UIView
@属性（强，非原子）UIPangestureRecognitor*装甲识别器；
@属性（强，非原子）UIPinchEstureRecognitor*PinchRecognitor；
@属性（强，非原子）UIRotationGestureRecognitor*RotationRecognitor；
@属性（强，非原子）UITapGestureRecognitor*TapproFileImageRecognitor；
@属性（强，非原子）UIImageView*imageView；
@性质（强，非原子）性质*性质；
@属性（非原子）CGPoint pointBegin；
@属性（非原子）布尔是可移除的；
@属性（非原子）CGFloat beginScale；
@属性（强、非原子）垃圾箱视图*垃圾箱；
-（id）initWithProperty:（Property*）属性比例：（CGFloat）比例因子位置：（CGPoint）点垃圾箱：（DustbinView*）垃圾箱；
@结束
好的，错误之处在于没有添加UIGestureRecognitor要适应的对象。例如，您有

 UITapGestureRecognizer *tapProfileImageRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
    [tapProfileImageRecognizer setNumberOfTapsRequired:2];
    [self addGestureRecognizer:tapProfileImageRecognizer];

除了这条线，这正是你需要的

 [self addGestureRecognizer:tapProfileImageRecognizer];

这是将手势添加到类中。您需要一个对象：）

所以就这么做吧

 [self.view addGestureRecognizer:tapProfileImageRecognizer];

对于你所有的手势，它应该起作用：）
您必须始终确保添加到对象上，而不是类上

希望这有帮助

编辑：

将UIGestureRecognizers放在UIView上是您正在做的事情的方式。你现在需要做的是进入Xcode


文件->新文件
创建UIViewController子类
一定要把它命名为
在.xib文件下，找到以下内容：


然后，如果查看UIView的位置，请单击该位置。这将打开UIView属性面板。移动到圆圈中有i的小按钮。它是属性面板下的蓝色。单击该按钮，您将看到以下内容：


在这里，您可以看到标有“UIView”的框

这就是您键入UIView子类的地方

这将有助于解决您遇到的任何问题。希望有帮助！：）
 添加手势代码您应该将手势代码放入
viewDidLoad
而不是
init
方法中，并将手势添加到视图（
self.view
）而不是对象（
self
）本身中。
我做了一些改变

-(void) viewDidLoad
{
        UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scale:)];
        [self.view addGestureRecognizer:pinchRecognizer];

        UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];
        [self.view addGestureRecognizer:rotationRecognizer];

        UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)];
        [panRecognizer setMinimumNumberOfTouches:1];
        [panRecognizer setMaximumNumberOfTouches:1];
        [self.view addGestureRecognizer:panRecognizer];

        UITapGestureRecognizer *tapProfileImageRecognizer = [[UITapGestureRecognizer alloc] initWithTarget:self action:@selector(tapped:)];
        [tapProfileImageRecognizer setNumberOfTapsRequired:2];
        [self.view addGestureRecognizer:tapProfileImageRecognizer];
}

这对我很有用：

UIPinchGestureRecognizer *pinchRecognizer = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scale:)];
pinchRecognizer.delegate = self;
[self addGestureRecognizer:pinchRecognizer];

UIRotationGestureRecognizer *rotationRecognizer = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotate:)];
pinchRecognizer.delegate = self;
[self addGestureRecognizer:rotationRecognizer];

UIPanGestureRecognizer *panRecognizer = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(move:)];
pinchRecognizer.delegate = self;
[panRecognizer setMinimumNumberOfTouches:1];
[panRecognizer setMaximumNumberOfTouches:1];
[self addGestureRecognizer:panRecognizer];

它告诉我：在类型为“xxxxxxx”的对象上找不到属性“view”。您的类a的子类是什么？您是在使用UIViewController还是任何其他控制器？或者类似UIView的子类？哦！您需要做的是将其保留为self，因为您已经将其添加到视图中了。现在，您所要做的就是创建一个UIViewController类，在.xib文件中，转到它的视图的规范，并键入您的UIView子类，我将在一个新的答案中发布它挂起！！很抱歉，我没有首先告诉您：）这是真的，我没有在那里看到init方法！hahaBut这是加载视图后将在用户选项卡上生成的属性吗？我不能使用viewDidLoad方法，可以吗？他们在添加手势时没有使用UIViewController。它是UIView@MadsDonkin请参阅查看组件完全加载且所有IB连接完成时调用viewDidLoad。在viewDidLoad之前，我们不应该使用view及其组件。所以，如果它不起作用，请再试一次。请告诉我更多关于这个类的信息，它是做什么的，它是控制器还是视图？？？