[英]trouble with an animation
我将UIImageView子类化。 双击时,它将自身放大40%。 我也有一个UILabel,我将其放置在自定义UIImageView中,并希望将其放大40%。
我似乎无法使其正确动画。
-(void)enlargeImage
{
CGPoint pointCenter = self.center;
CGPoint labelCenter = self.displayNameLabel.center;
[UIView animateWithDuration:1
delay:0
options:(UIViewAnimationOptionAllowUserInteraction)
animations:^{
self.frame = CGRectMake(self.frame.origin.x,
self.frame.origin.y,
self.frame.size.width * (1 + self.sizeMultiplier),
self.frame.size.height * (1 + self.sizeMultiplier));
// Commented out after setting the autoresizeMask on the label
/*
self.displayNameLabel.frame = CGRectMake(self.displayNameLabel.frame.origin.x,
self.displayNameLabel.frame.origin.y,
self.displayNameLabel.frame.size.width * (1 + self.sizeMultiplier),
self.displayNameLabel.frame.size.height * (1 + self.sizeMultiplier));
*/
self.layer.shadowOpacity = 1;
}
completion:^(BOOL finished)
{
[self callDelegateSelect];
}];
self.center = pointCenter;
//self.displayNameLabel.center = labelCenter;
//self.displayNameLabel.center = CGPointMake((self.frame.size.width / 2), (self.frame.size.height / 2));
self.isSelected = TRUE;
}
-(void)shrinkImageWithZoomScale:(float)zoomScale
{
CGPoint pointCenter = self.center;
CGPoint labelCenter = self.displayNameLabel.center;
[UIView animateWithDuration:1
delay:0
options:(UIViewAnimationOptionAllowUserInteraction)
animations:^{
self.frame = CGRectMake(self.frame.origin.x,
self.frame.origin.y,
(self.originalHeight / zoomScale),
(self.originalHeight / zoomScale));
// Commented out after setting the autoresizeMask on the label
/*
self.displayNameLabel.frame = CGRectMake(self.displayNameLabel.frame.origin.x,
self.displayNameLabel.frame.origin.y,
((self.originalLableHeight) / zoomScale),
((self.originalLableHeight) / zoomScale));
*/
self.layer.shadowOpacity = 0;
}
completion:^(BOOL finished)
{
[self callDelegateDeselect];
}];
self.center = pointCenter;
//self.displayNameLabel.center = labelCenter;
//self.displayNameLabel.center = CGPointMake((self.frame.size.width / 2), (self.frame.size.height / 2));
self.isSelected = FALSE;
}
自定义UIImageView动画也正是我想要的动画,但是UILabel行为异常。
未选中(UILabel的背景设置为橙色):
已选择:
我猜因为UIImageView的点参考正在更改,所以我告诉UILabel是要弄乱点吗?
编辑:
自定义UIImageView的:
self.autoresizesSubviews = TRUE;
子视图UILabel:
self.displayNameLabel.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);
这解决了尺寸问题,但并没有从中心发展; 生长时,它向右移动并向左移动到中心。 缩小时,它向左移动并向右移动到中心。 我还注释掉了在动画代码中设置标签的框架。
如果UILabel
是UIImageView
的子视图,则可以尝试设置UILabel
自动调整大小选项,以使其在其超级视图执行时自动调整大小。
另外,确保将UIImageView
的autoresizesSubviews
属性设置为YES
(顺便说一下,这是默认设置)。
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