翻页时出现问题

我正在使用此代码翻转我的视图。但问题是翻盖完成后视图不能回到原来的位置。我试图设置框架来改变它的位置，但它没有按预期工作。翻页时出现问题

- (void) pageOpenView:(UIView *)viewToOpen duration:(NSTimeInterval)duration withFlipDirection:(NSString*)direction { 

    // Remove existing animations before stating new animation 
    [viewToOpen.layer removeAllAnimations]; 

    // Make sure view is visible 
    viewToOpen.hidden = NO; 

    // disable the view so it’s not doing anythign while animating 
    viewToOpen.userInteractionEnabled = NO; 
    // Set the CALayer anchorPoint to the left edge and 
    // translate the button to account for the new 
    // anchorPoint. In case you want to reuse the animation 
    // for this button, we only do the translation and 
    // anchor point setting once. 
    if (viewToOpen.layer.anchorPoint.x != 0.0f) { 
     viewToOpen.layer.anchorPoint = CGPointMake(0.0f, 0.5f); 
     viewToOpen.center = CGPointMake(viewToOpen.center.x - viewToOpen.bounds.size.width/2.0f, viewToOpen.center.y); 
    } 
    // create an animation to hold the page turning 
    CABasicAnimation *transformAnimation = [CABasicAnimation animationWithKeyPath:@"transform"]; 
    transformAnimation.removedOnCompletion = NO; 
    transformAnimation.duration = duration; 
    transformAnimation.timingFunction = [CAMediaTimingFunction functionWithName:kCAMediaTimingFunctionDefault]; 
    // start the animation from the current state 
    transformAnimation.fromValue = [NSValue valueWithCATransform3D:CATransform3DIdentity]; 
    // this is the basic rotation by 90 degree along the y-axis 
    CATransform3D endTransform = CATransform3DMakeRotation(3.141f, 
                  0.0f, 
                  -1.0f, 
                  0.0f); 
    // these values control the 3D projection outlook 
    // endTransform.m34 = 0.001f; 
    // endTransform.m14 = -0.0015f; 
    transformAnimation.toValue = [NSValue valueWithCATransform3D:endTransform]; 
    // Create an animation group to hold the rotation 
    CAAnimationGroup *theGroup = [CAAnimationGroup animation]; 

    // Set self as the delegate to receive notification when the animation finishes 
    theGroup.delegate = self; 
    theGroup.duration = duration; 
    theGroup.fillMode = kCAFillModeBoth; 
    // CAAnimation-objects support arbitrary Key-Value pairs, we add the UIView tag 
    // to identify the animation later when it finishes 
    [theGroup setValue:[NSNumber numberWithInt:viewToOpen.tag] forKey:@"viewToOpenTag"]; 
    // Here you could add other animations to the array 
    theGroup.animations = [NSArray arrayWithObjects:transformAnimation, nil]; 
    theGroup.removedOnCompletion = NO; 
    // Add the animation group to the layer 
    [viewToOpen.layer addAnimation:theGroup forKey:@"flipViewOpen"];

}

任何帮助，将不胜感激。

在此先感谢。 Arvind

来源

2010-07-26 Ideveloper

自己解决了。只是删除任何动画通过使用这种方法来改变它的框架之前：

[myView.layer removeAllAnimations];

，现在它工作正常。

谢谢大家的时间。

来源

2010-07-26 06:44:31 Ideveloper

翻页时出现问题

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