随机 UIView 切换器

发布于 2024-12-29 18:12:18 字数 357 浏览 2 评论 0原文

我的 iPhone 应用程序中有三个不同的视图，当用户按下按钮时，我需要将视图随机更改为三个视图中的一个。我找到了这段代码，但我不知道如何加载图像..抱歉，但我是新手....！

- (IBAction) yourBtnPressed : (id) sender
{
    int i = arc4random() % 3;

    if(i == 1)
    {
        //load first view
    }
    else if(i == 2)
    {
        //load second view
    }
    else
    {
        //load third view
    }
}

原文

I have three different views in my iPhone app, and when the user presses a button, I need the view to change to either of the three views randomly. I've found this code, but i don't know how to load images..sorry but i'm newbie....!!

- (IBAction) yourBtnPressed : (id) sender
{
    int i = arc4random() % 3;

    if(i == 1)
    {
        //load first view
    }
    else if(i == 2)
    {
        //load second view
    }
    else
    {
        //load third view
    }
}

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满意归宿 2025-01-05 18:12:18

如果视图都在同一个视图控制器中，您可以简单地编写

self.view = firstView;

，或者为了更酷的过渡，您可以使用这些方法
+transitionWithView:持续时间:选项:动画:完成:
+ transitionFromView:toView:duration:options:completion:

请参阅苹果文档：
http://developer.apple.com/库/IOs/#documentation/UIKit/Reference/UIView_Class/UIView/UIView.html

if view are all in the same viewcontroller you can simply write

self.view = firstView;

or for more cool transition you can use these method
+ transitionWithView:duration:options:animations:completion:
+ transitionFromView:toView:duration:options:completion:

see apple documentation:
http://developer.apple.com/library/IOs/#documentation/UIKit/Reference/UIView_Class/UIView/UIView.html

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可爱咩 2025-01-05 18:12:18

如果您的视图位于 .xib 文件中，则可以使用以下代码：

[self.view addSubview:aView];

如果您想以编程方式创建视图，则：

UIView *aView = [[UIView alloc] initWithFrame:aFrame];
// add contents to your aView here
[self.view addSubview:aView];
[aView release]; // if you don't need it anymore

If your views are in a .xib file you can use this code:

[self.view addSubview:aView];

If you think to create your views programmatically, then:

UIView *aView = [[UIView alloc] initWithFrame:aFrame];
// add contents to your aView here
[self.view addSubview:aView];
[aView release]; // if you don't need it anymore

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