image_jpeg

pub package GitHub GitHub stars

Flutter plug-in for image compression JPEG upload supports image blurring, rotation processing, and loading resource files and memory images (bytes).

Usage

To use this plugin, add image_jpeg as a dependency in your pubspec.yaml file.

ROADMAP

  • x Compressed to JPEG
  • x Image Zoom
  • x Image Rotate
  • x Get image information (width, height, fileSize, lastModified)
  • x Gaussian Blur
  • x Loading resource images

Supported Platforms

  • Android
  • IOS

Examples

  • Examples App - Demonstrates how to use the image_jpeg plugin.
import 'package:image_jpeg/image_jpeg.dart';

// 调用 encodeJpeg ,返回输出的文件名
String newfileName = await ImageJpeg.encodeJpeg(imageFile.path, newfile, 70, JpgImageWidth, JpgImageHeigh);

// 调用encodeImageWithRes从资源文件中加载并处理,返回bytes
List<int> data = await ImageJpeg.encodeImageWithRes(resName, 70, 'drawable', 1000, 1000,  0, 10, 4);

// 加载资源文件(可以不是图像)
List<int> data = await ImageJpeg.loadResFile(resName);

// 高斯模糊
List<int> data = await ImageJpeg.blurImageWithFlie(imageFile.path, 10, 4, 0);

// 获取资源文件信息
var sv = await ImageJpeg.getResImageInfo(resName);

// 获取文件信息
var sv = await ImageJpeg.getInfo(imageFile.path);

License MIT

Copyright (c) 2018

Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:

The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.

THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.

Libraries

image_jpeg

Dart

dart:ui
Built-in types and core primitives for a Flutter application. [...]

Core

dart:async
Support for asynchronous programming, with classes such as Future and Stream. [...]
dart:collection
Classes and utilities that supplement the collection support in dart:core. [...]
dart:convert
Encoders and decoders for converting between different data representations, including JSON and UTF-8. [...]
dart:core
Built-in types, collections, and other core functionality for every Dart program. [...]
dart:developer
Interact with developer tools such as the debugger and inspector. [...]
dart:math
Mathematical constants and functions, plus a random number generator. [...]
dart:typed_data
Lists that efficiently handle fixed sized data (for example, unsigned 8 byte integers) and SIMD numeric types. [...]

VM

dart:io
File, socket, HTTP, and other I/O support for non-web applications. [...]
dart:isolate
Concurrent programming using isolates: independent workers that are similar to threads but don't share memory, communicating only via messages. [...]