为什么我的NSURL对象等于nil?我的路是正确的 [英] Why does my NSURL object is equal to nil? My path is correct

问题描述

NSString *urlString = [NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%lf,%lf&output=csv&sensor=false&key=swizzlec hops", coordinate.latitude,coordinate.longitude];
NSLog(@"urlString: %@", urlString); 
NSURL *urlFromURLString = [NSURL URLWithString:urlString];

我的日志是: http://maps.google.com/maps/geo?q=53.872874,27.527790&output=csv&sensor=false&key=swizzlec 啤酒花

我可以复制此URL并将其粘贴到浏览器中，并且可以，但是urlFromURLString = nil.但是，为什么?

I can copy this url and paste to the browser and its ok, but urlFromURLString = nil. But, why?

推荐答案

我相信您需要使用

stringByAddingPercentEscapesUsingEncoding:

在将urlString传递给NSURL之前.

on urlString before passing it to NSURL.

NSString *urlString = [[NSString stringWithFormat:@"http://maps.google.com/maps/geo?q=%lf,%lf&output=csv&sensor=false&key=swizzlec hops", coordinate.latitude,coordinate.longitude] stringByAddingPercentEscapesUsingEncoding::NSUTF8StringEncoding];

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