Flutter

Flutter automatically update application when new version is available

由 狂风中的少年 提交于 2021-02-17 19:14:37
问题 How can I implement auto-updating of my application when a new version is released without using Google Play Store? I'm using JSON to check the version. 回答1: Actually, in June 2020, we have more possibilities with Flutter. Among them: 1. Make updates inside the app. Display two kinds of notifications if the app has the new version. Plugin - https://pub.dev/packages/in_app_update (works only on Android, iOS doesn't support such functionality) 2. When a newer app version is available in the app

Flutter setState of child widget without rebuilding parent

由 我的未来我决定 提交于 2021-02-17 15:43:10
问题 I have a parent that contain a listView and a floatingActionButton i would like to hide the floatingActionButton when the user starts scrolling i have managed to do this within the parent widget but this requires the list to be rebuilt each time. I have moved the floatingActionButton to a separate class so i can update the state and only rebuild that widget the problem i am having is passing the data from the ScrollController in the parent class to the child this is simple when doing it

Rounded bottom on appbar

由 限于喜欢 提交于 2021-02-17 15:33:49
问题 I want to make an appbar with a rounded bottom, like so: How would I go about implementing such an appbar? I have tried reading up on the documentation for CustomPainter, but I don't feel like that is the way to go. 回答1: In Flutter you can have custom shape in AppBar widget with shape property. AppBar( title: Text('My App'), shape: RoundedRectangleBorder( borderRadius: BorderRadius.vertical( bottom: Radius.circular(30), ), ), ), 回答2: You can use BoxDecoration to add border-radius and shadow

Rounded bottom on appbar

由 谁说我不能喝 提交于 2021-02-17 15:33:23
问题 I want to make an appbar with a rounded bottom, like so: How would I go about implementing such an appbar? I have tried reading up on the documentation for CustomPainter, but I don't feel like that is the way to go. 回答1: In Flutter you can have custom shape in AppBar widget with shape property. AppBar( title: Text('My App'), shape: RoundedRectangleBorder( borderRadius: BorderRadius.vertical( bottom: Radius.circular(30), ), ), ), 回答2: You can use BoxDecoration to add border-radius and shadow

Rounded bottom on appbar

由 邮差的信 提交于 2021-02-17 15:33:15
问题 I want to make an appbar with a rounded bottom, like so: How would I go about implementing such an appbar? I have tried reading up on the documentation for CustomPainter, but I don't feel like that is the way to go. 回答1: In Flutter you can have custom shape in AppBar widget with shape property. AppBar( title: Text('My App'), shape: RoundedRectangleBorder( borderRadius: BorderRadius.vertical( bottom: Radius.circular(30), ), ), ), 回答2: You can use BoxDecoration to add border-radius and shadow

How to get response body with request.send() in dart

由 别等时光非礼了梦想. 提交于 2021-02-17 15:14:59
问题 I'm doing an api request uploading an image with var request = new http.MultipartRequest("POST", uri); var response = await request.send() in dart using flutter. I can then check the response code with for instance if (response.statusCode == 200) { print('ok'); } with other calls I can also get the response body with var result = response.body; however when using request.send() I can't seem to find out how to get the response body result. Any help or input is very much appreciated, thanks!

How to get response body with request.send() in dart

由 老子叫甜甜 提交于 2021-02-17 15:13:37
问题 I'm doing an api request uploading an image with var request = new http.MultipartRequest("POST", uri); var response = await request.send() in dart using flutter. I can then check the response code with for instance if (response.statusCode == 200) { print('ok'); } with other calls I can also get the response body with var result = response.body; however when using request.send() I can't seem to find out how to get the response body result. Any help or input is very much appreciated, thanks!

如何实现一次编码，到处运行？新一代云端一体化探索

由 旧街凉风 提交于 2021-02-17 13:06:53
阿里妹导读 ：当前移动互联网业务研发运维模式，云与多端互相割裂，有些全栈的探索缺乏成功案例，行业对云端一体化研发这块仍是空白，我们要思考：如何能实现 1 个研发支撑云 + android + iOS 三端的业务快速落地？是否有新的研发运维模式，让程序员回归程序？“一次编码、到处运行”是我们的答案。我们在闲鱼项目验证，原本 60 天的项目时间减少了 20 天，提效 33% 。希望阿里高级技术专家孙棋的分析能够给大家带来收获。 业务研发模式的演进 效率是业务研发运维模式演进核心驱动力 PC 互联网时代，单体应用包含前后端是最初的研发模式（淘宝经历开发人员写 velocity 模板，以及更早的 jsp、asp 页面）其实质是中心化搭火车的研发模型。 随着业务发展复杂性快速增加，赶火车的交付模式，极大的限制了业务发展，因此诞生了服务化的拆分，淘宝在 09 年的五彩石项目即基于这样的背景，微服务是一种软件架构，这背后更是一种研发模式的变革，从中心化研发模式到分布式的研发模式升级。 在业务分布式研发模式升级的同时，前后端分离研发模式也在同步的演进，从 ajax 到专业前端独立完成业务闭环，职业分工细化提效。但对前端同学而言，服务端的运维始终是其痛苦的技术门槛，以及在阿里以 Java 语言为基础的中间件生态内，一直没有很好解决。 进入移动互联网时代，客户端同样也经历同样的演进，阿里集团以

Moving along a curved path in flutter

由 此生再无相见时 提交于 2021-02-17 11:07:38
问题 I want to know how can I animate a widget in Flutter along a path like following image: Let's say I have a simple curved line: import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: SamplePath(), ); } } class SamplePath extends StatefulWidget { @override State<StatefulWidget> createState() => _SamplePathState(); } class _SamplePathState extends State<SamplePath> {

Moving along a curved path in flutter

由 不羁岁月 提交于 2021-02-17 11:06:56
问题 I want to know how can I animate a widget in Flutter along a path like following image: Let's say I have a simple curved line: import 'package:flutter/material.dart'; void main() => runApp(MyApp()); class MyApp extends StatelessWidget { @override Widget build(BuildContext context) { return MaterialApp( home: SamplePath(), ); } } class SamplePath extends StatefulWidget { @override State<StatefulWidget> createState() => _SamplePathState(); } class _SamplePathState extends State<SamplePath> {
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