Я использую этот код, чтобы перевернуть мой взгляд. но проблема в том, что, когда переворот завершен, вид не возвращается в исходное положение. Я попытался настроить фрейм таким образом, чтобы он изменил свое положение, но он не работает должным образом.
- (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"];
}
Любая помощь будет оценена.
Спасибо заранее.
Arvind