iPhone 动画视图叠加

发布于 2024-09-08 17:13:20 字数 379 浏览 3 评论 0原文

我有一些 XIB 是我的页面，我使用presentmodalviewcontroller 通过一些按钮在它们之间切换。现在我想使用其他按钮来拉出这些视图上的叠加层。我现在的情况是我有一个按钮，可以简单地切换 UIImageview 上的“隐藏”属性。

用于动画显示/隐藏功能的选项有哪些？当调用叠加层时，我想要某种放大或缩小效果，而不是突然显示/隐藏。

-(IBAction)basketballbutton{
if (basketball.hidden == YES)
    basketball.hidden = NO;
else if (basketball.hidden == NO)
    basketball.hidden = YES;

谢谢！

原文

I have a few XIBs that are my pages, and i'm using presentmodalviewcontroller to switch between them with some buttons. Now I want to use other buttons to pull up overlays on those views. How I have it now is I have a button which simply toggles the "Hidden" property on the UIImageview.

What are options for animating the show/hide functionality of this? I'd like some sort of zoom-in or zoom-out effect when the overlay is called up rather than just suddenly showing/hiding.

-(IBAction)basketballbutton{
if (basketball.hidden == YES)
    basketball.hidden = NO;
else if (basketball.hidden == NO)
    basketball.hidden = YES;

Thanks!

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自此以后，行同陌路 2024-09-15 17:13:20

您可以使用 alpha 属性设置视图不透明度的动画。

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5f];
[basketball setAlpha:([basketball alpha] > 0.0) ? 0.0f : 1.0f];
[UIView commitAnimations];

这将为视图的显示和隐藏设置动画。

以下是设置缩放变换的方法：

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5f];
// Scale up 2x
[basketball setTransform:CGAffineTransformMakeScale(2.0f, 2.0f)];
[UIView commitAnimations];

You can animate the view opacity using the alpha property.

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5f];
[basketball setAlpha:([basketball alpha] > 0.0) ? 0.0f : 1.0f];
[UIView commitAnimations];

This will animate the showing and hiding of the view.

Here is how you set the transform for scaling:

[UIView beginAnimations:nil context:NULL];
[UIView setAnimationDuration:0.5f];
// Scale up 2x
[basketball setTransform:CGAffineTransformMakeScale(2.0f, 2.0f)];
[UIView commitAnimations];

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