android - 无法获取未知属性 'localProperties'

Question

我想在 build.gradle 中读取 local.properties 中定义的属性(如 here 所述)
所以在根 build.gradle 文件中我有以下内容:

// Top-level build file where you can add configuration options common to all sub-projects/modules.

def localProperties = new Properties()
if (project.rootProject.file('local.properties').canRead()) {
    localProperties.load(project.rootProject.file("local.properties").newDataInputStream())
}

buildscript {

    ext {
        ...
    }

    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
    dependencies {
        classpath "com.android.tools.build:gradle:$gradleVersion"
        classpath "org.jetbrains.kotlin:kotlin-gradle-plugin:$kotlinVersion"


        // NOTE: Do not place your application dependencies here; they belong
        // in the individual module build.gradle files
    }
}

allprojects {
    repositories {
        google()
        jcenter()
        maven {
            url "https://maven.google.com"
        }
    }
}

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

在模块的 build.gradle 文件中，我有以下内容:

android {
    ...
    defaultConfig {
        ...
        buildConfigField "String", "TOKEN", localProperties['token']
    }
}

但同步后出现以下错误:

Could not get unknown property 'localProperties' for DefaultConfig_Decorated{name=main, ...} of type com.android.build.gradle.internal.dsl.DefaultConfig.

我哪里错了？如何解决这个问题呢？

Answer 1

我遇到了一些问题。变量 localProperties不是内置的，而是由您自己定义的。您可以添加

Properties localProperties = new Properties()
    File file = project.rootProject.file('local.properties')
    if (file.exists()) {
        localProperties.load(file.newDataInputStream())
    }

给你在 defaultConfig block 中的 build.gradle。