在Flutter中将BASE64字符串转换为Image
问题描述:
我尝试将 BASE64
字符串解码为 Uint8List
I have tried decoding BASE64
String to Uint8List
Uint8List _bytes =
base64.decode('data:image/jpeg;base64,/9j/4AAQ .........');
Image.memory(_bytes);
但是却收到错误提示,(字符错误:)
But getting error as, (Error on character :)
无效字符(在字符5)
data:image / jpeg; base64,/ 9j / 4AAQSkZJRgABAQAAAQABAAD / 2wCEAAkGBxITEhUSEhMVFRUV ...
Invalid character (at character 5) data:image/jpeg;base64,/9j/4AAQSkZJRgABAQAAAQABAAD/2wCEAAkGBxITEhUSEhMVFRUV...
我怎么摆脱这个问题?
答
使用URI,其中包含 RFC-2397 定义的逗号后的数据。 Dart的 Uri 类基于RFC-3986 ,因此您将无法使用它。用逗号分隔字符串,并使用字符串的最后一部分:
You're using URI that contains data after comma as it is defined by RFC-2397. Dart's Uri class is based on RFC-3986, so you can't use it. Split the string by comma and take the last part of it:
String uri = 'data:image/gif;base64,...';
Uint8List _bytes = base64.decode(uri.split(',').last);