嵌入式ViewContainer中的手势识别器不会受到攻击

Question

经过近4天的搜索找到问题的解决方案，我现在问你，希望能帮忙。

我的UIViewController只有一个UIViewContainer。将使用从nib文件加载的View以编程方式填充此容器。最后一个视图附有3个手势识别器。但是没有一个被击中。

使用ViewContainer的主视图

笔尖视图

将view.nib加载到容器中的代码

userMasterViewContainer *container = [[[[NSBundle mainBundle] loadNibNamed:@"UserCardView" owner:nil options:nil] lastObject] initWithDelegate:self andUser:user];
[self.viewContainer addSubview:container];

nib视图类中的手势识别器代码

- (void)addGestureRecognizerToPicture:(UIView *)picture
{
    // profile picture gestures
    UIRotationGestureRecognizer *rotationGesture = [[UIRotationGestureRecognizer alloc] initWithTarget:self action:@selector(rotatePicture:)];
    [picture addGestureRecognizer:rotationGesture];

    UIPinchGestureRecognizer *pinchGesture = [[UIPinchGestureRecognizer alloc] initWithTarget:self action:@selector(scalePicture:)];
    [pinchGesture setDelegate:self];
    [picture addGestureRecognizer:pinchGesture];

    UIPanGestureRecognizer *panGesture = [[UIPanGestureRecognizer alloc] initWithTarget:self action:@selector(panPicture:)];
    [panGesture setMaximumNumberOfTouches:2];
    [panGesture setDelegate:self];
    [picture addGestureRecognizer:panGesture];

    self.userInteractionEnabled = YES;
}

- (void)rotatePicture:(id)rotateProfilePicture
{

}

- (void)scalePicture:(id)scaleProfilePicture
{   

}

- (void)panPicture:(UIPanGestureRecognizer *)gestureRecognizer
{

}

手势将在viewDidLoad中添加到两个UIImageView：封面叠加和用户照片

[self addGestureRecognizerToPicture:self.backgroundPicture];

他们都没有工作。我希望有人可以帮助我。

最好的问候安德烈

Answer 1

经过几天的努力，我解决了问题。 有一个奇怪的家长观点组合捕捉我的用户互动。

我通过为每个不应识别触摸的视图将userInteractionEnabled属性设置为NO来解决此问题。

// setup inactive and active elements for user interactions
self.userInteractionEnabled = YES;
self.userPicture.userInteractionEnabled = YES;
self.buttonOverlay.userInteractionEnabled = NO;
self.backgroundPictureOverlay.userInteractionEnabled = NO;
self.userPictureOverlay.userInteractionEnabled = NO;

因为我的视图中还有一个UIButton Button - Profile。还需要以下代码来阻止他捕捉手势。

- (BOOL)gestureRecognizer:(UIGestureRecognizer *)gestureRecognizer shouldReceiveTouch:(UITouch *)touch
{
    return touch.view == self.buttonOverlay ? NO : YES;
}

另外，我必须添加以下方法，因为我想在简单的图像编辑器中使用这些手势。使用此代码，我可以同时旋转，缩放和平移。

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