我們用 Android 源碼里的兩個 proto 文件做下示范。

1. 向 Android Studio 工程里添加 proto 文件

~/YourProject/app/src/main/proto$ ls
total 12K
-rw-rw-r-- 1 han han 2.1K Jun  8 15:04 launcher_dump.proto
-rw-rw-r-- 1 han han 4.2K Jun  8 15:04 launcher_log.proto

2. 添加 build.gradle 配置

buildscript {
    repositories {
        mavenCentral()
        jcenter()
    }
    dependencies {
        classpath 'com.android.tools.build:gradle:2.3.2'
        classpath 'com.google.protobuf:protobuf-gradle-plugin:0.8.1'
    }
}

apply plugin: 'com.android.application'
apply plugin: 'com.google.protobuf'

android {
    sourceSets {
        main {
            proto {
                srcDir 'src/main/proto'
                include '**/*.proto'
            }
            java {
                srcDir 'src/main/java'
            }
        }
    }
}

dependencies {
    compile 'com.google.protobuf:protobuf-lite:3.0.0'
}

protobuf {
    protoc {
        artifact = 'com.google.protobuf:protoc:3.3.0'
    }
    plugins {
        javalite {
            // The codegen for lite comes as a separate artifact
            artifact = 'com.google.protobuf:protoc-gen-javalite:3.0.0'
        }
    }
    generateProtoTasks {
        all().each { task ->
            task.plugins {
                javalite { }
            }
        }
    }
}

3. Rebuild Project

protobuf.png