Android项目运行时出错
卡在Initializing gradle…

运行时会卡在Initializing gradle..., 此时因为Android项目会用到Gradle, 如果没有FQ,下载速度会非常慢, 此时我们可以在项目中的android/gradle/wrapper/gradle-wrapper.properties中查看gradle版本号以及地址, 我们可以手动下载然后解压到~/.gradle/wrapper/dists/中。
卡在Running ‘gradle assembleDebug

运行时会卡在Running 'gradle assembleDebug, 因为Gradle的Maven仓库在国外, 可以使用阿里云的镜像地址。

1. 修改项目中android/build.gradle文件

buildscript {
    repositories {
        //修改的地方
        //google()
        //jcenter()
        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' }
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}

allprojects {
    repositories {
        //修改的地方
        //google()
        //jcenter()
        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' }
    }
}

rootProject.buildDir = '../build'
subprojects {
    project.buildDir = "${rootProject.buildDir}/${project.name}"
}
subprojects {
    project.evaluationDependsOn(':app')
}

task clean(type: Delete) {
    delete rootProject.buildDir
}

2. 修改Flutter的配置文件, 该文件在Flutter安装目录/packages/flutter_tools/gradle/flutter.gradle

buildscript {
    repositories {
        //修改的地方
        //google()
        //jcenter()
        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' }
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:3.2.1'
    }
}