麻烦动画

时间:2012-09-26 15:06:12

标签: objective-c ios animation

我将UIImageView子类化。当它被双击时,它会自动扩大40%。我也有一个UILabel,我放在自定义UIImageView中,并希望它放大40%。

我似乎无法正确地制作动画。

-(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也是我想要的动画,但是UILabel行为不端。

未选中(UILabel的背景设置为橙色):

unselected

选自:

selected

我猜是因为UIImageView的点引用正在改变,它弄乱了我告诉UILabel的点?

编辑:

自定义UIImageView:

self.autoresizesSubviews = TRUE;

子视图UILabel:

self.displayNameLabel.autoresizingMask = (UIViewAutoresizingFlexibleWidth | UIViewAutoresizingFlexibleHeight);

这解决了尺寸问题,但它并没有从中心发展;在成长时,它会向右移动,并向左移动到中心。收缩时,它向左移动并向右移动到中心。我还注释了在动画代码中设置标签的框架。

1 个答案:

答案 0 :(得分:1)

如果UILabelUIImageView的子视图,您可以尝试设置UILabel的自动调整选项,以便在超级视图执行时自动调整大小。

另外,请确保autoresizesSubviews的{​​{1}}属性设置为UIImageView(顺便说一下,这是默认设置)。