Future<File> writeAsBytes(List<int> bytes, {FileMode mode = FileMode.write, bool flush = false}); 例如: import 'dart:io'; void main() async { var file = File('test.txt'); await file.writeAsString('Hello, Dart!'); } 在这个示例中,我们使用 writeAsString 方法向文件中写入了一些文本...
AI代码解释 @protectedvoiddrawFrame(){assert(renderView!=null);pipelineOwner.flushLayout();pipelineOwner.flushCompositingBits();pipelineOwner.flushPaint();renderView.compositeFrame();// this sends the bits to the GPUpipelineOwner.flushSemantics();// this also sends the semantics to the OS.} Rende...
再者就是对异常的概述提取,我们通过使用 Flutter 框架中的一个函数exceptionAsString来获取,如下面代码: 代码语言:javascript 复制 StringexceptionAsString(){String?longMessage;if(exception is AssertionError){final Object?message=exception.message;final String fullMessage=exception.toString();if(message is String...
generator_->GetPixels(info, bitmap.getPixels(), bitmap.rowBytes(), nextFrameIndex_, requiredFrameIndex)) { FML_LOG(ERROR) << "Could not getPixels for frame " << nextFrameIndex_; return nullptr; } // Hold onto this if we need it to decode future frames. if (frameInfo.disposal_method...
// 解码函数位于mqtt_client_mqtt_publish_payload.dart 内///Converts an array of bytes to a character string.staticStringbytesToStringAsString(typed.Uint8Buffer message) {// 接收时采用Uint8finalsb =StringBuffer(); message.forEach(sb.writeCharCode);returnsb.toString(); ...
String? localCustomData, } ) Parameters: Parameter Definition Valid for One-to-One Chat Valid for Group Chat Description id ID returned after message creation YES YES Create the message using the `createXxxMessage` API in advance. receiver `userID` of the one-to-one message receiver....
}/**HTTP POST 上传文件*/staticFuture<MsgResponse>httpUploadFile(finalString url,finalFile file, { String accept= "*/*", String token, String field= "picture-upload", String file_contentType,//默认为null,自动获取}) async {try{ List<int> bytes =await file.readAsBytes();returnawait httpUp...
阿里云oss明确要求form请求开头必须是以Content-Disposition: form-data; name="*"开头，而在上传文件的...
Future<String> _capturePath(name) async { Directory documentsDirectory = await getExternalStorageDirectory(); String path = join(documentsDirectory.path, name); return path; } writeAsBytes 文件的保存很简单,直接将 Uint8List 写入到所在文件路径下即可; 代码语言:javascript 代码运行次数:0 运行 AI代码...
String toHmacSha1Base64(String sk){ var hmacSha1 = Hmac(sha1, utf8.encode(sk)); return base64.encode(hmacSha1.convert(utf8.encode(this)).bytes); } 请求头封装好后调用 dio 的 put 方法进行上传,上传成功后组装 OBSResponse 进行返回。 这样通用的对象上传方法就完成了,接下看看 putObject 和pu...