从 NSURL 检索文件名 [英] Retrieve filename from NSURL

问题描述

我有一个网址

http://www.hdwallpapers.in/walls/honda_v4_concept_widescreen_bike-wide.jpg

我想提取文件名honda_v4_concept_widescreen_bike-wide.jpg"

I want to extract the file name which is "honda_v4_concept_widescreen_bike-wide.jpg"

我该怎么做?

推荐答案

下面的代码应该可以工作.更新了它，所以我删除了顶部语句.我本可以使用 C++ 中的 NSString 与 const char * 或 std::string ，但认为 C 字符指针非常适合这种情况.

The code below should work. Updated it so I removed the top statement. I could've used NSString vs const char * or std::string from C++ but thought C Character Pointers would be quite appropriate for this case in point.

还修改了它，使其具有自己的简洁功能:

Also revamped this so it's in it's own concise function:

-(NSString*) extractFile:(const char*) url 
{
    NSURL *yourURL = [NSURL URLWithString:
                     [NSString stringWithCString:url 
                                 encoding:NSUTF8StringEncoding]];
    return [yourURL lastPathComponent];
}

使用:

const char *path_ = "http://www.hdwallpapers.in/walls/honda_v4_concept_widescreen_bike-wide.jpg";
NSLog(@"\t\tYour Extracted file: \n\t%@", [self extractFile:path_]);

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