如何转义 NSString 以在 NSURL 中使用? [英] How to escape an NSString to use in NSURL?

问题描述

到目前为止我的发送按钮得到了这个代码:

Got this code so far for my send button:

NSString* urlString = [NSString stringWithFormat:@"http://server.com/ios/add.php?user=iPhone+App&message=%@", messageBox.text stringByAddingPercentEscapesUsingEncoding : NSUFT8StringEncoding];
NSURL *add = [NSURL URLWithString:urlString];

但是我确实收到错误预期的':'

However I do get the error "Expected ':'

推荐答案

需要将两个字符串构造调用分开

You need to separate the two string construction calls

NSString* urlString = [[NSString stringWithFormat:@"http://server.com/ios/add.php?user=iPhone+App&message=%@", messageBox.text] stringByAddingPercentEscapesUsingEncoding : NSUTF8StringEncoding];
NSURL *add = [NSURL URLWithString:urlString];

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