Ios 平移手势在默认旋转和缩放后表现怪异

我目前正在设计一个小游戏作为一个学习项目，基本上如下所示，一个图像在

viewDidLoad

上旋转和缩放，另一个图像是原始图像的直接副本

所以基本上有一个图像与另一个图像有点不同，目标是缩小它，旋转它，然后在另一个图像上移动它，5像素，5度旋转，5%缩放

我遇到了一个问题。我使用以下代码“扭曲”图像

CGAffineTransform transform = CGAffineTransformMakeRotation(M_PI/2.5);
image.transform = CGAffineTransformScale(transform, 1.25, 1.25);

旋转图像并将其缩放125%后，平移手势无法正确执行

有人知道这里会发生什么吗？我的意思是它不能用我的手指移动。。它似乎在滑行或向相反的方向移动

我的平移手势方法如下

if (gesture.state == UIGestureRecognizerStateBegan || gesture.state == UIGestureRecognizerStateChanged) {
        CGPoint translation = [gesture translationInView:image];
        //if within game field
        if((image.center.x + translation.x) > 50.0 && (image.center.x + translation.x) < 255.0 && (image.center.y + translation.y) > 50.0 && (image.center.y + translation.y) < 302) {
            [image setCenter:CGPointMake([image center].x + translation.x, [image center].y + translation.y)]; //move it
        }
    }
    [gesture setTranslation:CGPointZero inView:[image superview]];
    if(gesture.state == UIGestureRecognizerStateEnded) [self didWin]; // not relevant to question

if（signature.state==UIGestureRecognitizerStateStarted | | signature.state==UIGestureRecognitizerStateChanged）{
CGPoint translation=[手势翻译视图：图像]；
//如果在游戏场内
如果（（image.center.x+translation.x）>50.0&&（image.center.x+translation.x）<255.0&&（image.center.y+translation.y）>50.0&&（image.center.y+translation.y）<302）{
[image setCenter:CGPointMake（[image center].x+translation.x[image center].y+translation.y）]；//移动它
}
}
[手势设置翻译：CGPointZero-inView:[图像超级视图]]；
如果（signature.state==UIGestureRecognitizerStateEnded）[self didWin]；//与问题无关

有人知道为什么在我旋转和缩放我的图像后，平移操作不正确吗？当我注释掉前两行代码时，pan将正确执行并用用户的手指移动

---

提前感谢您的任何建议或帮助

解决方案是稍微更改pan代码

if (gesture.state == UIGestureRecognizerStateBegan || gesture.state == UIGestureRecognizerStateChanged) {
        CGPoint translation = [gesture translationInView:self.view]; //CHANGED
        //if within game field
        if((image.center.x + translation.x) > 50.0 && (image.center.x + translation.x) < 255.0 && (image.center.y + translation.y) > 50.0 && (image.center.y + translation.y) < 302) {
            [image setCenter:CGPointMake([image center].x + translation.x, [image center].y + translation.y)]; //move it
        }
    }
    [gesture setTranslation:CGPointZero inView:self.view];

if（signature.state==UIGestureRecognitizerStateStarted | | signature.state==UIGestureRecognitizerStateChanged）{
CGPoint translation=[手势翻译视图：self.view]；//已更改
//如果在游戏场内
如果（（image.center.x+translation.x）>50.0&&（image.center.x+translation.x）<255.0&&（image.center.y+translation.y）>50.0&&（image.center.y+translation.y）<302）{
[image setCenter:CGPointMake（[image center].x+translation.x[image center].y+translation.y）]；//移动它
}
}
[手势集翻译：CGPointZero-inView:self.view]；

---

我在视图中更改了

：self.view

和

translationview:self.view]
旋转可能已更改帧。我使用了cosf和sinf函数来处理它

handlePan和handleRotate是回调函数，我可以在其中控制self.view的子视图。在这里，您应该用自己的视图替换图像

static CGFloat _rotation = 0;

- (void)handlePan:(UIPanGestureRecognizer*)recognizer
{
    UIImageView *image = nil;
    for (UIImageView *tmp in recognizer.view.subviews) { // pick the subview
        if (tmp.tag == AXIS_TAG) {
            image = tmp;
        }
    }
    CGPoint translation = [recognizer translationInView:image];

    // I have found any related documents yet, but these equations do work!//////
    CGFloat dx = translation.x * cosf(_rotation) - translation.y*sinf(_rotation);
    CGFloat dy = translation.x * sinf(_rotation) + translation.y*cosf(_rotation);
    /////////////////////////////////////////////////////////////////////////////

    image.center = CGPointMake(image.center.x+dx, dy+image.center.y);
    [recognizer setTranslation:CGPointMake(0, 0) inView:image];
}

- (void)handleRotate:(UIRotationGestureRecognizer*)recognizer
{
    UIImageView *image = nil;
    for (UIImageView *tmp in recognizer.view.subviews) { // pick the subview
        if (tmp.tag == AXIS_TAG) {
            image = tmp;
        }
    }
    CGFloat r = [recognizer rotation];
    if ((recognizer.state == UIGestureRecognizerStateBegan || recognizer.state == UIGestureRecognizerStateChanged) 
        && recognizer.numberOfTouches == 2) {
        image.transform = CGAffineTransformMakeRotation(_rotation+r);
    } else if (recognizer.state == UIGestureRecognizerStateEnded) {
        _rotation+=r; // Record the final rotation
    }
}