您好，我正在尝试使用图像库减小从图库中选取的图像尺寸 在尝试我遇到这样的错误时
E/flutter (13796): [ERROR:lib/tonic/logging/dart_error.cc(16)] Unhandled exception:
E/flutter (13796): FileSystemException: Cannot open file, path = 'file:///storage/emulated/0/WhatsApp/Media/WhatsApp%20Images/IMG-20171016-WA0020.jpg' (OS Error: No such file or directory, errno = 2)
E/flutter (13796): #0 _File.throwIfError (file_impl.dart:618)
E/flutter (13796): #1 _File.openSync (file_impl.dart:473)
E/flutter (13796): #2 _File.readAsBytesSync (file_impl.dart:533)
E/flutter (13796): #3 _AddNewUserState.qqq (/data/data/com.prayuta.chitfunds/cache/chitfundsUNFPRG/chitfunds/lib/users.dart:420:97)
E/flutter (13796): <asynchronous suspension>
E/flutter (13796): #4 _AddNewUserState.build.<anonymous closure> (/data/data/com.prayuta.chitfunds/cache/chitfundsUNFPRG/chitfunds/lib/users.dart:686:19)
E/flutter (13796): #5 GestureRecognizer.invokeCallback (package:flutter/src/gestures/recognizer.dart:102:24)
E/flutter (13796): #6 TapGestureRecognizer._checkUp (package:flutter/src/gestures/tap.dart:149:9)
E/flutter (13796): #7 TapGestureRecognizer.acceptGesture (package:flutter/src/gestures/tap.dart:119:7)
E/flutter (13796): #8 GestureArenaManager.sweep (package:flutter/src/gestures/arena.dart:156:27)
E/flutter (13796): #9 BindingBase&SchedulerBinding&GestureBinding.handleEvent (package:flutter/src/gestures/binding.dart:147:20)
E/flutter (13796): #10 BindingBase&SchedulerBinding&GestureBinding.dispatchEvent (package:flutter/src/gestures/binding.dart:121:22)
E/flutter (13796): #11 BindingBase&SchedulerBinding&GestureBinding._handlePointerEvent (package:flutter/src/gestures/binding.dart:101:7)
E/flutter (13796): #12 BindingBase&SchedulerBinding&GestureBinding._flushPointerEventQueue (package:flutter/src/gestures/binding.dart:64:7)
E/flutter (13796): #13 BindingBase&SchedulerBinding&GestureBinding._handlePointerDataPacket (package:flutter/src/gestures/binding.dart:48:7)
E/flutter (13796): #14 _invoke1 (file:///b/build/slave/Linux_Engine/build/src/flutter/lib/ui/hooks.dart:100)
E/flutter (13796): #15 _dispatchPointerDataPacket (file:///b/build/slave/Linux_Engine/build/src/flutter/lib/ui/hooks.dart:58)
谁能帮忙，我的代码是这样的
import 'package:image/image.dart' as convertinglib;
File imageFile = await ImagePicker.pickImage();
convertinglib.Image image = convertinglib.decodeImage(new Io.File(imageFile.uri.toString()).readAsBytesSync());
convertinglib.Image thumbnail = convertinglib.copyResize(image, 120);
最佳答案
我想问题是将图像 URI 作为字符串传递。
有一个 fromUri 构造函数，您可以在其中传递文件 URI。
尝试使用
new Io.File.fromUri(imageFile.uri)
代替
new Io.File(imageFile.uri.toString())
关于dart - 无法打开文件，路径 = 'file:///path'(操作系统错误 : No such file or directory, errno = 2)，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/46782521/