[英]How to convert string to base64 encoding in iOS 6.1
I am converting string to base64 encoded in iOS 7 and its working fine,but when application is running in iOS 6.1 application get crashed.for iOS 7, I am using : 我在iOS 7中将字符串转换为base64编码并且工作正常,但是当应用程序在iOS 6.1中运行时,应用程序崩溃。对于iOS 7,我使用:
NSData *decodedData = [[NSData alloc] initWithBase64EncodedString:pdfDataString options:0];
in iOS 6 my application get crashed on this line.Please help me.How can i convert string to Base64 encoded in iOS 6. 在iOS 6中,我的应用程序在此行崩溃。请帮助我。如何在iOS 6中将字符串转换为Base64编码。
You can use this method... or you can use it like reference :) 你可以使用这种方法......或者你可以像参考一样使用它:)
- (NSString*)encodeStringTo64:(NSString*)fromString
{
NSData *plainData = [fromString dataUsingEncoding:NSUTF8StringEncoding];
NSString *base64String;
if ([plainData respondsToSelector:@selector(base64EncodedStringWithOptions:)]) {
base64String = [plainData base64EncodedStringWithOptions:kNilOptions]; // iOS 7+
} else {
base64String = [plainData base64Encoding]; // pre iOS7
}
return base64String;
}
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