getBaseName(file.path); int fileSize = file.lengthSync(); //文件总大小 int totalPart = (fileSize * 1.0 / partSize).ceil(); //分块总数 向上取整 int currentPart = currentPart; //当前要传第几块 由后台记录返回的 RandomAccessFile raf = file.openSync(mode: FileMode.read); //开启循环...
String filePath = "${dir.path}/hello.txt"; File file = File(filePath); if (!file.existsSync()){ file.createSync(); } //向文件写入内容 file.writeAsStringSync("Happy New Year"); //读取文件的内容 String data = file.readAsStringSync(); log("readData from files $data"); } 1. ...
final path=await _localPath; returnFile('$path/text.txt'); } Future<String> readFile() async { try{ finalfile=await _localFile; String content=awaitfile.readAsString(); returncontent; } catch (e) { return''; } } Future<File> writeFile(String text) async { ...
Future<void> readDocxFile() async { final docx = Docxtemplater(); await docx.load("path/to/your/docx/file.docx"); final data = docx.getAllVariables(); print(data); } 在上述代码中,load方法用于加载docx文件,getAllVariables方法用于获取文件中的所有变量。 请注意,以上代码仅适用于读取docx文件...
factoryFile(String path)factoryFile.fromUri(Uri uri)factoryFile.fromRawPath(Uint8List rawPath) varfile=File('file.txt'); 2.2 读取文件所有内容 文件读取本身有两种形式,一种是文本,一种是二进制。 2.2.1 读取文本内容 如果是文本文件,File提供了readAsString、readAsLines、readAsStringSync、readAsLines...
@override _FileReaderPageState createState() => _FileReaderPageState(); } class _FileReaderPageState extends State<FileReaderPage> { @override Widget build(BuildContext context) { return Scaffold( appBar: AppBar( title: Text("doc"), ), body: FileReaderView( filePath: widget.filePath, ), )...
import'dart:io';main(){varpath='/Volumes/coder/Project/Flutter/flutter_journey/lib/day6/漫感.txt';Future<String>futureStr=File(path).readAsString();futureStr.then((value){print(value);});print("===看看控制台,我是第在哪里?===");}复制代码 2.3:使用async...
fromPath('test_file', file.path); // Using the bytes. final bytes = await entity.originBytes; if (bytes == null) { throw StateError('Unable to obtain bytes of the entity ${entity.id}.'); } mf = http.MultipartFile.fromBytes('test_file', bytes); return mf; } With diox diox ...
final imageContent = await pickedFile!.readAsBytes(); fileName = pickedFile.name; tempFile = File(pickedFile.path); fileContent = imageContent; html.Node? inputElem; inputElem = html.document .getElementById("__image_picker_web-file-input") ?.querySelector("input"); final convID...
If you need to send or receive rich media messages (such as image, video, and file messages) and use advanced features such as recalling messages, marking messages as read, and querying message history, we recommend the following advanced message APIs. (The original APIs for simple message sen...