flutter 填坑

android studio 3.0以上

环境搭建

1.镜像:

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

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

 

 

 

 

 

android sdk 路径放入系统变量中 android中

 

2.下载git,flutter sdk

3.下载AS3.0以上

4:要在终端运行 flutter 命令, 你需要添加以下环境变量到系统PATH:

  • 转到 “控制面板>用户帐户>用户帐户>更改我的环境变量”
  • 在“用户变量”下检查是否有名为“Path”的条目:
    • 如果该条目存在, 追加 flutter\bin的全路径,使用 ; 作为分隔符.
    • 如果条目不存在, 创建一个新用户变量 Path ,然后将 flutter\bin的全路径作为它的值.
  • 在“用户变量”下检查是否有名为”PUB_HOSTED_URL”和”FLUTTER_STORAGE_BASE_URL”的条目,如果没有,也添加它们。

 

环境变量配置好了,重启电脑,打开AS右边出现flutter 代表可以创建flutter 工程了

编译报错:

在 As控制台,或命令窗口 输入flutter doctor 检查当前配置是否完善

 

 

PS C:\Users\Administrator> flutter doctor

Doctor summary (to see all details, run flutter doctor -v):

[√] Flutter (Channel beta, v0.5.1, on Microsoft Windows [Version 10.0.17134.165], locale zh-CN)

[X] Android toolchain – develop for Android devices

X Unable to locate Android SDK.

Install Android Studio from: https://developer.android.com/studio/index.html

On first launch it will assist you in installing the Android SDK components.

(or visit https://flutter.io/setup/#android-setup for detailed instructions).

If Android SDK has been installed to a custom location, set $ANDROID_HOME to that location.

[X] Android Studio (not installed)

[!] Connected devices

! No devices available

 

! Doctor found issues in 3 categories.

PS C:\Users\Administrator>

 

flutter 已经给我们把问题和解决方案都列了出来.

如果你的电脑以前没安装 Android SDK 和 Android Studio 的话,你看到的错误信息应该和我一致.

 

PS C:\Users\Administrator> flutter doctor

 

Doctor summary (to see all details, run flutter doctor -v):

[√] Flutter (Channel beta, v0.5.1, on Microsoft Windows [Version 10.0.17134.165], locale zh-CN)

[!] Android toolchain – develop for Android devices (Android SDK 28.0.1)

X Android licenses not accepted. To resolve this, run: flutter doctor –android-licenses

[√] Android Studio (version 3.1)

X Flutter plugin not installed; this adds Flutter specific functionality.

X Dart plugin not installed; this adds Dart specific functionality.

[!] Connected devices

! No devices available

 

! Doctor found issues in 2 categories.

 

Android licenses not accepted

第一个问题就是关于 Android licenses 的,flutter 也给出了解决方法,执行下面命令,然后一直输入 Y 即可

flutter doctor –android-licenses

 

Flutter plugin not installed 和 Dart plugin not installed

这个是提示我们 Android Studio 没有安装 Flutter 插件和 Dart 插件

让我们打开 Android Studio , 点击 Plugins,选择 Browse repositories,搜索 Flutter 进行安装,在安装 flutter时,编辑器也会帮我们安装 dart 插件

 

 

 

 

当我们安装完成后,让我们重启 Android Studio,完成编辑器配置

 

2.运行开源项目出现 Finished with error: FormatException: Bad UTF-8 encoding 0xc3 (at offset 169) 

这是由于app的版本为release找不到keystore文件,我们只需要在app下的build.gradle文件中修改为signingConfigs.debug即可:

 

buildTypes {

release {

signingConfig signingConfigs.debug

proguardFiles getDefaultProguardFile(‘proguard-android.txt’), ‘proguard-rules.pro’

}

}

Finished with error: FormatException: Bad UTF-8 encoding 0xb4 (at offset 125)

 

 

 

导入别的flutter 项目时出现 Flutter for Android 找不到

 

ctrl+shift+alt+s 打开一个界面

 

是因为 路径出错了,更新下就好了

 

添加datr Packages Libraries

点击项目中

 

就可以加入了

 

Error waiting for a debug connection: ProcessException: adb did not report forwarded port

 

很简单,答案说的是升级adb,其实是更新SDK Platform-Tools就可以了。

 

 

 

 

 

    原文作者:落凤坡369
    原文地址: https://blog.csdn.net/zjw369144735/article/details/84138625
    本文转自网络文章,转载此文章仅为分享知识,如有侵权,请联系博主进行删除。
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