替换 URL 中出现的空格

发布于 2024-09-13 16:27:50 字数 228 浏览 15 评论 0原文

我在 iPhone 应用程序中有一个可以使用的 URL。但问题是它的 URL 中有一些空格。我想用“%20”替换空格。我知道有 stringByReplacingOccurencesOfString 和 stringByAddingPercentEscapesUsingEncoding 方法。我也用过它们。但他们不为我工作。空格被一些不寻常的值替换。

我将这些方法应用于 NSString 的实例。

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爱要勇敢去追 2024-09-20 16:27:50

替换 url 中的空格的正确格式是：

Swift 4.2 、 Swift 5

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

Swift 4

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)

Objective C

NSString *urlString;//your url string.

urlString = [originalUrl stringByReplacingOccurrencesOfString:@" " withString:@"%20"];

或

urlString = [originalUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

iOS 9 及更高版本

urlString = [originalUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

The correct format for replacing space from url is :

Swift 4.2 , Swift 5

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

Swift 4

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: CharacterSet.urlQueryAllowed)

Objective C

NSString *urlString;//your url string.

urlString = [originalUrl stringByReplacingOccurrencesOfString:@" " withString:@"%20"];

urlString = [originalUrl stringByAddingPercentEscapesUsingEncoding:NSUTF8StringEncoding];

iOS 9 and later

urlString = [originalUrl stringByAddingPercentEncodingWithAllowedCharacters:[NSCharacterSet URLQueryAllowedCharacterSet]];

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溺ぐ爱和你が 2024-09-20 16:27:50

Swift 2.0

let originalUrl = "http://myurl.com/my photo.png"
let urlNew:String = urlReq.stringByAddingPercentEncodingWithAllowedCharacters( NSCharacterSet.URLQueryAllowedCharacterSet())!

输出：

http://myurl.com/my%20photo.png

Swift 2.0

let originalUrl = "http://myurl.com/my photo.png"
let urlNew:String = urlReq.stringByAddingPercentEncodingWithAllowedCharacters( NSCharacterSet.URLQueryAllowedCharacterSet())!

Output:

http://myurl.com/my%20photo.png

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与酒说心事 2024-09-20 16:27:50

要替换 SWIFT 3 中的出现：

let updatedUrl = originalUrl.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)

To replace occurence in SWIFT 3 :

let updatedUrl = originalUrl.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)

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淡淡绿茶香 2024-09-20 16:27:50

Swift 4

使用 replacementOccurrences 方法替换空白的另一种方法：

let yourString = "http://myurl.com/my photo.png"
let urlNew:String = yourString.replacingOccurrences(of: " ", with: "%20").trimmed

这会将空白 (" ") 替换为 '%20'

Swift 4

Another way to replace an empty space with replacingOccurrences method:

let yourString = "http://myurl.com/my photo.png"
let urlNew:String = yourString.replacingOccurrences(of: " ", with: "%20").trimmed

That will replace the empty space (" ") with '%20'

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Oo萌小芽oO 2024-09-20 16:27:50

雨燕5

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

Swift 5

var urlString = originalString.addingPercentEncoding(withAllowedCharacters: .urlQueryAllowed)

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风向决定发型 2024-09-20 16:27:50

最快的解决方案：只需使用 stringy 方法...

.replacingOccurrences(of: " ", with: "%20")

...在字符串末尾，它就会按照它说的那样进行。

Apple 应该感到尴尬的是，他们的 URL(string: ) 方法不会自动执行此操作（以及更多操作）。现在是 2023 年，我浪费了 3 个小时来找到这个半途而废的解决方案。

我的具体示例是在 cellForItemAt 内部并且与选项有关。

let stringOfImageURLFromFirebase = wordController?.word?.images[indexPath.item].imgUrl

let stringWithNoSpaces = string?.replacingOccurrences(of: " ", with: "%20")

if let imageURLString = stringWithNoSpaces,
   let imageURL = URL(string: imageURLString) {
         cell.definitionImageView.loadImageFromFirebase(url: imageURL)
    } else {
        cell.definitionImageView.image = UIImage(named: "slictionarylogo")
    }

你可以长时间摆弄 .addingPercentEncoding，尝试 NSURL 废话，使用显而易见的东西你会更快。苹果很糟糕，而且应该让这个问题变得非常容易，因为这是一个如此普遍的问题。再说一遍，他们在开车时睡着了，而且他们的文档也很糟糕。

The quickest solution: just use the stringy method...

.replacingOccurrences(of: " ", with: "%20")

...at the end of your string, and it will do as it says.

Apple should be EMBARRASSED that their URL(string: ) method doesn't automatically do this (and more). It's 2023 and I wasted 3 hours finding this half-assed solution.

My specific example was inside cellForItemAt and having to do with optionals.

let stringOfImageURLFromFirebase = wordController?.word?.images[indexPath.item].imgUrl

let stringWithNoSpaces = string?.replacingOccurrences(of: " ", with: "%20")

if let imageURLString = stringWithNoSpaces,
   let imageURL = URL(string: imageURLString) {
         cell.definitionImageView.loadImageFromFirebase(url: imageURL)
    } else {
        cell.definitionImageView.image = UIImage(named: "slictionarylogo")
    }

You can fuddle with .addingPercentEncoding for a long time, try NSURL nonsense, and you'll just be faster with using the obvious. Apple sucks, and should've made this painfully easy since it's such a common problem. Again, they are asleep at the wheel, and their documentation is AWFUL too.

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云醉月微眠 2024-09-20 16:27:50

var urlString :String = originalUrl.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)!

var urlString :String = originalUrl.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)!

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音盲 2024-09-20 16:27:50

希望这会起作用

let url = "https:youtube.56432fgrtxcvfname=xyz&sname=tuv"
let urlNew:String = url.replacingOccurrences(of: " ", with: "%20")
Alamofire.request(urlNew, method: .get, headers: headers).responseJSON{
response in
print(response)    
}

它会从网址中删除所有类型的空格。

Hope this will work

let url = "https:youtube.56432fgrtxcvfname=xyz&sname=tuv"
let urlNew:String = url.replacingOccurrences(of: " ", with: "%20")
Alamofire.request(urlNew, method: .get, headers: headers).responseJSON{
response in
print(response)    
}

It will remove all kind of spaces from the url.

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花海 2024-09-20 16:27:50

Swift 5.3，清除字符串空间，

let str = "  www.test.com  "
let trimmed = str.trimmingCharacters(in: .whitespacesAndNewlines)
print(str) // "www.test.com"

Swift 5.3, clear space your string,

let str = "  www.test.com  "
let trimmed = str.trimmingCharacters(in: .whitespacesAndNewlines)
print(str) // "www.test.com"

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浊酒尽余欢 2024-09-20 16:27:50

SWIFT 3.1

使用replaceOccurrences 替换空白的简单方法：

URL = URL.replacingOccurrences(of: " ", with: "", options: .literal, range: nil)

SWIFT 3.1

Simple way to replace an empty space with replacingOccurrences:

URL = URL.replacingOccurrences(of: " ", with: "", options: .literal, range: nil)

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骷髅 2024-09-20 16:27:50

斯威夫特 4、iOS-9

let **urlSearchVal**:String = "top 10 movies"     
let urlString = 

    "https://www.googleapis.com/youtube/v3/search?part=snippet&q=\(urlSearchVal)&key=......&type=video"   
//replace ...... above with your youtube key   
// to ignoring white space in search  
        let UrlString :String = urlString.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)!

Swift 4, iOS-9

let **urlSearchVal**:String = "top 10 movies"     
let urlString = 

    "https://www.googleapis.com/youtube/v3/search?part=snippet&q=\(urlSearchVal)&key=......&type=video"   
//replace ...... above with your youtube key   
// to ignoring white space in search  
        let UrlString :String = urlString.addingPercentEncoding(withAllowedCharacters: NSCharacterSet.urlQueryAllowed)!

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