Android探路先锋之Flutter - BUG集锦

最新推荐文章于 2024-05-31 09:54:22 发布

飞翔的熊blabla

最新推荐文章于 2024-05-31 09:54:22 发布

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分类专栏： flutter

原文链接：http://www.520webtool.com/

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如下我导入了一个WebView插件

name: flutter_demo
description: A new Flutter application.

dependencies:
flutter:
sdk: flutter

# The following adds the Cupertino Icons font to your application.
# Use with the CupertinoIcons class for iOS style icons.
cupertino_icons: ^0.1.0
#如下我导入了一个WebView插件
flutter_webview_plugin: ^0.1.0+1

dev_dependencies:
flutter_test:
sdk: flutter

pubspec.yaml
这个文件相当 AS中的build.gradle

flutter packages get
这个就相当于在AS的Ctrl+9 编译同步，需要在terminal中运行

pubspec.lock 生成对应的版本

flutter_webview_plugin:
dependency: "direct main"
description:
name: flutter_webview_plugin
url: "https://pub.dartlang.org"
source: hosted
version: "0.1.5"

提示热修复无效
请在terminal键入R restart app

Some program elements were changed during reload but did not run when the view was reassembled;
you may need to restart the app (by pressing "R") for the changes to have an effect.
• _LaunchPage.doubleClick (package:flutter_demo/app/LaunchPage.dart:63)

资源文件找不到异常
解决方法：
大神何小有的 Blog:https://blog.youkuaiyun.com/hekaiyou/article/details/53204466
然后记得多flutter run几次

D:\androidSpace\flutter_demo>flutter run
Running "flutter packages get" in flutter_demo...
Error on line 30, column 4 of pubspec.yaml: Expected a key while parsing a block mapping.
assets:
^
pub get failed (65)

每次更新完flutterSDK都是一脸懵逼
解决：https://github.com/flutter/flutter/wiki/Using-Flutter-in-China
配置环境变量

export PUB_HOSTED_URL=https://pub.flutter-io.cn
export FLUTTER_STORAGE_BASE_URL=https://storage.flutter-io.cn

C:\Users\Administrator>flutter
Updating flutter tool...
Got socket error trying to find package mockito at https://pub.dartlang.org.
Error: Unable to 'pub upgrade' flutter tool. Retrying in five seconds...

远程荡下来的项目需要修改 local.properties 这个文件参数
这三个都是需要手动配置的

sdk.dir=D:/android_sdk
flutter.sdk=D:\\flutter
flutter.buildMode=debug

Finished with error: Please review your Gradle project setup in the android/ folder.
* Error running Gradle:
Exit code 1 from: F:\AndroidWorkSpace\Flutter_Gank\android\gradlew.bat app:properties:

FAILURE: Build failed with an exception.

* Where:
Build file 'F:\AndroidWorkSpace\Flutter_Gank\android\build.gradle' line: 26

* What went wrong:
A problem occurred evaluating root project 'android'.
> A problem occurred configuring project ':app'.
> The SDK directory 'D:\android_sdk' does not exist.

外部类不能以下划线开始命名

error: The name '_Page' isn't a type so it can't be used as a type argument. (non_type_as_type_argument at [flutter_demo] lib\app\FirstPage.dart:16)
1
showSnackbar异常 Scaffold 赋 key 为_scaffoldKey 这个全局变量即可

Scaffold.of(context).showSnackBar(
new SnackBar(content: new Text(url)));
==============================================================
final GlobalKey<ScaffoldState> _scaffoldKey = new GlobalKey<ScaffoldState>();
key: _scaffoldKey,
_scaffoldKey.currentState.showSnackBar(
new SnackBar(content: new Text(url)));
---------------------
作者：拍砖哥
来源：优快云
原文：https://blog.youkuaiyun.com/qq_20330595/article/details/80004023
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