iOS 7中的Base64解码 [英] Base64 Decoding in iOS 7+
本文介绍了iOS 7中的Base64解码的处理方法,对大家解决问题具有一定的参考价值,需要的朋友们下面随着小编来一起学习吧!
问题描述
我使用 NSData
在iOS7中添加的新类API编码文本( NSString
)。
I have Encoded text(NSString
) using NSData
Class new API which is Added in iOS7.
使用此
- (NSData *)dataUsingEncoding:(NSStringEncoding)encoding;
这是我的代码
NSString *base64EncodedString = [[myText dataUsingEncoding:NSUTF8StringEncoding] base64EncodedStringWithOptions:0];
NSLog(@"%@", base64EncodedString);
我想解码它
推荐答案
Swift 3 +
Swift 3+
let plainString = "foo"
编码
Encoding
let plainData = plainString.data(using: .utf8)
let base64String = plainData?.base64EncodedString()
print(base64String!) // Zm9v
解码
Decoding
if let decodedData = Data(base64Encoded: base64String!),
let decodedString = String(data: decodedData, encoding: .utf8) {
print(decodedString) // foo
}
Swift< 3
Swift < 3
let plainString = "foo"
编码
Encoding
let plainData = plainString.dataUsingEncoding(NSUTF8StringEncoding)
let base64String = plainData?.base64EncodedStringWithOptions(NSDataBase64EncodingOptions(rawValue: 0))
print(base64String!) // Zm9v
解码
Decoding
let decodedData = NSData(base64EncodedString: base64String!, options: NSDataBase64DecodingOptions(rawValue: 0))
let decodedString = NSString(data: decodedData, encoding: NSUTF8StringEncoding)
print(decodedString) // foo
Objective-C
Objective-C
NSString *plainString = @"foo";
编码
Encoding
NSData *plainData = [plainString dataUsingEncoding:NSUTF8StringEncoding];
NSString *base64String = [plainData base64EncodedStringWithOptions:0];
NSLog(@"%@", base64String); // Zm9v
解码
Decoding
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:base64String options:0];
NSString *decodedString = [[NSString alloc] initWithData:decodedData encoding:NSUTF8StringEncoding];
NSLog(@"%@", decodedString); // foo
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