iPhone - 将 NSError 处理到范围内

发布于 2024-11-25 00:37:41 字数 227 浏览 0 评论 0原文

我正在尝试处理错误，但我发现很难知道什么类型的错误会返回给我。例如，我从地图视图操作中调用了这个委托方法：

- (void) reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error;

我如何知道通过此方法可以向我发送什么样的错误？我不想处理整个错误目录...:-)

原文

I'm trying to handle errors, and I find it very hard to know what kind of errors can be returned to me.
For example, I have this delegate method called from a map view manipulation :

- (void) reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error;

How may I know what kind of errors can be sent to me through this method ?
I don't want to have to handle the whole error catalog... :-)

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红墙和绿瓦 2024-12-02 00:37:41

MKReverseGeocoder.h 说：

// There are at least two types of errors:
//   - Errors sent up from the underlying connection (temporary condition)
//   - Result not found errors (permanent condition).  The result not found errors
//     will have the domain MKErrorDomain and the code MKErrorPlacemarkNotFound
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error;

我猜你应该在询问之前阅读文档和标题。

MKReverseGeocoder.h says:

// There are at least two types of errors:
//   - Errors sent up from the underlying connection (temporary condition)
//   - Result not found errors (permanent condition).  The result not found errors
//     will have the domain MKErrorDomain and the code MKErrorPlacemarkNotFound
- (void)reverseGeocoder:(MKReverseGeocoder *)geocoder didFailWithError:(NSError *)error;

Guess you should read docs and headers before asking.

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