iOS SDK中的NSAlert.h在哪里？ [英] Where is NSAlert.h in the iOS SDK?

问题描述

根据iOS的使用和创建错误对象 ，可以使用以下代码显示错误对象。

According to iOS's Using and Creating Error Objects, one can display a error object with the following code.

NSError *theError = nil;
BOOL success = [myDoc writeToURL:[self docURL] ofType:@"html" error:&theError];

if (success == NO) {
    // Maybe try to determine cause of error and recover first.
    NSAlert *theAlert = [NSAlert alertWithError:theError];
    [theAlert runModal]; // Ignore return value.
}

不幸的是，我不够聪明，无法弄清楚如何包含 NSAlert.h 。

Unfortunately, I am not smart enough to figure out how to include NSAlert.h.

任何帮助都将不胜感激。

Any help would be appreciated.

推荐答案

该文档指的是（OS X）AppKit框架。在那个方框之后，它说：

That document is referring to the (OS X) AppKit framework. Right after that box, it says:

（UIAlertView，对应于NSAlert的UIKit类，没有alertWithError的等效方法：。）

(UIAlertView, the UIKit class corresponding to NSAlert, has no equivalent method for alertWithError:.)

你仍然可以使用 UIAlertView ，但是你需要手动填充错误的标题，消息和按钮字符串。

You can still use UIAlertView, but you'll need to manually populate the title, message, and button strings from the error.

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