readFileToBase64Str function

Future<String> readFileToBase64Str(
  1. String path, {
  2. String? defaultStr,
})

从文件路径获取文件base64字符串

Implementation

Future<String> readFileToBase64Str(String path, {String? defaultStr}) async {
  File file = File(path);
  if (!await file.exists()) {
    "文件不存在：$path".logE();
    if (isEmptyOrNull(defaultStr)) {
      throw Exception('文件不存在');
    } else {
      return defaultStr!;
    }
  }
  String res = base64Encode(await file.readAsBytes());
  "$path base64Encode length: ${res.length}".logI();
  return res;
}