iPhone/iPad 通用应用程序不会为 iPhone 构建

发布于 2024-09-11 00:49:21 字数 1084 浏览 1 评论 0原文

我从头开始使我的应用程序适用于 iPhone 和 iPad（基于窗口的应用程序；通用）。首先，我为 iPhone 制作了所有逻辑和视图，并且它起作用了。之后我为 iPad 创建了视图。那行得通。但是当我实现 UISplitViewController 或 UIPopover 时，应用程序将不再为 iPhone 构建。

我这样称呼我的自定义 splitViewController：

MySplitViewController *mySplitViewController = [[MySplitViewController" alloc] init];

类定义如下所示： @interface MySplitViewController : UISplitViewController { 在

构建时（对于 iPhone 3.1.3）它给了我这个错误：

找不到接口声明 'UISplitViewController'，超类 'MySplitViewController'

当然，SDK 3.1.3 并不包含 SDK 3.2 中的所有新功能。很清楚。所以我尝试像这样创建我的类的实例：

MySplitViewController *mySplitViewController = [[NSClassFromString(@"MySplitViewController") alloc] init];

它仍然给我同样的错误。

我也尝试过弱链接框架，但这都没有帮助。

我还尝试过将创建类的实例包装在括号中，如下所示：

Class cls = NSClassFromString(@"UIPopoverController");
if (cls != nil) {
    MySplitViewController *mySplitViewController = [[NSClassFromString(@"MySplitViewController") alloc] init];
}

请问有人可以告诉我如何调用特定的类，以便我可以在两个平台上运行我的应用程序吗？

谢谢

原文

I have made my application universal for iPhone and iPad (window-based application; universal) from scratch.
First I made all logic and views for iPhone and it worked. After that I created views for iPad. That worked to. But when I implemented UISplitViewController or UIPopover, the application will not build anymore for iPhone.

I call my custom splitViewController like that:

MySplitViewController *mySplitViewController = [[MySplitViewController" alloc] init];

Class definition looks like that:
@interface MySplitViewController : UISplitViewController {
}

On build (for iPhone 3.1.3) it gives me this error:

cannot find interface declaration for
'UISplitViewController', superclass of
'MySplitViewController'

Afcourse, SDK 3.1.3 does not contain all new features from SDK 3.2. That's clear. So I tried creating instance of my class like that:

MySplitViewController *mySplitViewController = [[NSClassFromString(@"MySplitViewController") alloc] init];

It still gives me the same error.

I also tried to weak-link framework but that helped neither.

What I also tried is that I wrap creating instance of class in parentheses like that:

Class cls = NSClassFromString(@"UIPopoverController");
if (cls != nil) {
    MySplitViewController *mySplitViewController = [[NSClassFromString(@"MySplitViewController") alloc] init];
}

Could please someone tells me how can I call specific classes so I can run my application for both platform ?

Thanks

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