Win10在Android Studio中配置flutter的坑

Tom2Code

发布于 2023-02-14 11:27:43

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发布于 2023-02-14 11:27:43

文章被收录于专栏：Tom

1.首先安装flutter sdk，这个去官网安装即可。

2.然后安装Andorid Studio，都是一键安装的即可。

然后打开android studio(简称AS)新建一个flutter项目，然后AS会选择gradle构建项目，下载一些必要的package，这时候就开始有很多坑了。

第一个坑：

由于没有改镜像地址，gradle默认从maven的国外源站开始下载，所以会导致一直timeout，一直timeout，所以需要修改配置文件：

这是位于

D:\flutter\flutter_windows_3.3.9-stable\flutter\packages\flutter_tools\gradle

下的配置文件，叫做flutter.gradle

打开之后是这个样子：

大概是一千行代码

我们要改的地方是这里：

/** For apps only. Provides the flutter extension used in app/build.gradle. */
class FlutterExtension {
    /** Sets the compileSdkVersion used by default in Flutter app projects. */
    static int compileSdkVersion = 31

    /** Sets the minSdkVersion used by default in Flutter app projects. */
    static int minSdkVersion = 16

    /** Sets the targetSdkVersion used by default in Flutter app projects. */
    static int targetSdkVersion = 31

    /**
     * Sets the ndkVersion used by default in Flutter app projects.
     * Chosen as default version of the AGP version below.
     */
    static String ndkVersion = "21.1.6352462"

    /**
     * Specifies the relative directory to the Flutter project directory.
     * In an app project, this is ../.. since the app's build.gradle is under android/app.
     */
    String source

    /** Allows to override the target file. Otherwise, the target is lib/main.dart. */
    String target
}

buildscript {
    repositories {
        google()
        mavenCentral()
    }
    dependencies {
        /* When bumping, also update ndkVersion above. */
        classpath 'com.android.tools.build:gradle:4.1.0'
    }
}

这个是默认的原配置文件的内容

那么我们要在第31行的下面新增一些地址：

maven { url 'https://maven.aliyun.com/repository/google'}
maven { url 'https://maven.aliyun.com/repository/jcenter'}
maven { url 'http://maven.aliyun.com/nexus/content/groups/public'}

这也就是说增加了一些源站点，我以为加了这三条就好了，没想到构建了半天还是会报错：

Using insecure protocols with repositories, without explicit opt-in, is unsupported. Switch Maven repository 'maven(XXX)' to redirect to a secure protocol (like HTTPS) or allow insecure protocols.

于是又是一顿debug

发现还是需要加上一些额外的配置：

maven {
            allowInsecureProtocol = true
            url 'xxx'
}

最终的配置是这样的(截取了部分)：

buildscript {
    repositories {
        //google()
        //mavenCentral()

        maven { url 'https://maven.aliyun.com/repository/google'}
        maven { url 'https://maven.aliyun.com/repository/jcenter'}
        maven { url 'https://maven.aliyun.com/nexus/content/groups/public'}

    }
    dependencies {
        /* When bumping, also update ndkVersion above. */
        classpath 'com.android.tools.build:gradle:4.1.0'
    }
}
=====
        // Configure the Maven repository.
        String hostedRepository = System.env.FLUTTER_STORAGE_BASE_URL ?: DEFAULT_MAVEN_HOST
        String repository = useLocalEngine()
            ? project.property('local-engine-repo')
            : "$hostedRepository/download.flutter.io"
        rootProject.allprojects {
            repositories {
                maven {
                    url repository
                    allowInsecureProtocol = true
                }
            }
        }

配置完了这些之后别忘了重启AS

当然还有其他各种小问题，但是这个是最致命也是最耗时的。

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原始发表：2022-12-07，如有侵权请联系 cloudcommunity@tencent.com 删除

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