NSString 到 NSurl

问题描述

无法让 NSSTRING 转换为 NSURL，item.image 保存了我通过 xml 获取的图像的 url

having trouble getting NSSTRING to convert to NSURL, item.image, holds the url for an image that im getting through xml

NSString *urlString = [NSString stringWithFormat:@"%@", item.image];
NSURL *url = [NSURL URLWithString:urlString];

NSLog(@"string> %@ ", urlString);
NSLog(@"url> %@ ", url);

2011-06-23 11:18:49.610 Test[10126:207] string> http://www.harlemfur.com/images/Dog_Olive.jpg       
2011-06-23 11:18:49.611 Test[10126:207] url> (null) 

如果我尝试:

NSString *urlString = [NSString stringWithFormat:@"%@", item.image];
NSURL *url = [NSURL fileURLWithPath :urlString];

2011-06-23 11:22:08.063 Test[10199:207] string> http://www.harlemfur.com/images/Dog_Olive.jpg

2011-06-23 11:22:08.064 Test[10199:207] url> %0A%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20%20http://www.harlemfur.com/images/Dog_Olive.jpg%0A%20%20%20%20%20%20%20%20%20%20%20%20 -- / 

推荐答案

从 NSString 制作 URL 时，别忘了先编码，试试这个:

When making URL from NSString, don't forget to encode it first, so try this:

NSString *urlString = [NSString stringWithFormat:@"%@", item.image];
NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding]];  

对于 IOS ≥ 9.0 使用

NSURL *url = [NSURL URLWithString:[urlString stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]]];

这篇关于NSString 到 NSurl的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持跟版网！