Ios UIP检测识别器-带CATTransferM3D的TranslationView

我正在尝试使用UIPangestureRecognitor实现翻页动画。代码如下：

- (void)handlePan:(UIPanGestureRecognizer *)recognizer {

    CGPoint location = [recognizer locationInView:self.view];
    CGPoint translation = [recognizer translationInView:self.view];
    CGPoint velocity = [recognizer velocityInView:self.view];

    [recognizer setTranslation:CGPointZero inView:recognizer.view];

switch (recognizer.state) {
        case UIGestureRecognizerStateChanged:
        {

            self.currentTranslation = self.currentTranslation + translation.x;

            //only pan left
            if (self.currentTranslation > 0.0) {
                self.currentTranslation = 0.0;
            }


            CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;
            rotationAndPerspectiveTransform.m34 = 1.0 / -2000;

            self.currentRotation = self.currentTranslation/2 * M_PI / 180.0f;
            //dont rotate past -90 degrees
            if (self.currentRotation <= -M_PI/2) {
                self.currentRotation = -M_PI/2+0.0001;
            }
            rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, self.currentRotation, 0.0f, 1.0f, 0.0f);

            float ypos = self.view.layer.position.y;

            self.view.layer.anchorPoint = CGPointMake(0, 0.5);
            self.view.layer.position = CGPointMake(0, ypos);        
            self.view.layer.transform = rotationAndPerspectiveTransform;


            break;
        }


        default:
            break;
    }

}

-（void）handlePan:（UIPangestureRecognitor*）识别器{
CGPoint location=[识别器位置视图：self.view]；
CGPoint translation=[识别器translationView:self.view]；
CGPoint-velocity=[识别器速度视图：self.view]；
[识别器setTranslation:CGPointZero-inView:recognizer.view]；
开关（识别器状态）{
案例UIgestureRecognitzerStateChanged:
{
self.currentTranslation=self.currentTranslation+translation.x；
//只剩下平底锅了
如果（self.currentTranslation>0.0）{
self.currentTranslation=0.0；
}
CATTransferM3D旋转和透视变换=CATTransferM3D实体；
rotationAndPerspectiveTransform.m34=1.0/-2000；
self.currentRotation=self.currentTranslation/2*M_PI/180.0f；
//不要旋转超过-90度
如果（self.currentRotation转换已累积。请在案例UIgestureRecognitizerStateChanged后将其添加到代码中

    [recognizer setTranslation:CGPointZero inView:self.view];

请注意，我在上面的代码中已经提到了这一点。我认为随着角度变大，旋转效果看起来更极端，这是一个更大的问题。我认为平移本身是线性的。我只需要找出如何抑制旋转。@c我想你的self.currentTranslation是累积的。请尝试使用translation.x而不是of在CATTransferM3dRotate中添加到self.currentTranslation。我相信这就是问题所在。