用android studio多渠道打包

1. 官方教程

　　https://developer.android.com/studio/build/build-variants.html

2. 设置Build Types参数

打开 Project Sturcture --> Build Variatns --> Build Types

设置参数如:zipalign = true

3. 创建 dimension

进入第2个选项卡: Flavors 创建 dimension

4. 添加渠道,设置渠道参数

点 + 按钮 ---> 点 Add Product Flavor -- > 输入渠道名字 --> 设置渠道参数,如ProGuard Files.

5. 添加其它渠道

如上.添加完后,如下:

6. 设置生成apk的名字

module 的 build.gradle 文件

 apply plugin: 'com.android.application'
 apply plugin: 'org.greenrobot.greendao' // apply plugin
 apply plugin: 'com.jakewharton.butterknife'

 def buildTime(){
     return new Date().format("yyMMdd", TimeZone.getTimeZone("UTC"))
 }

 android {
     compileSdkVersion 28
     buildToolsVersion '28.0.3'
     defaultConfig {
         applicationId "cn.com.example.app"
         minSdkVersion 15
         targetSdkVersion 26
         versionCode 5
         versionName "v3.1.2.180103"
         testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
     }
     buildTypes {
         release {
             minifyEnabled false
             shrinkResources false
             proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
             zipAlignEnabled = true
             applicationVariants.all { variant ->
                 variant.outputs.all { output ->
                     outputFileName = new File(
                         "${applicationId}_${variant.productFlavors[0].name}_${versionName}_${buildTime()}.apk".toLowerCase())
                 }
             }
         }
     }
     sourceSets { main { res.srcDirs = ['src/main/res', 'src/main/res/values-zh'] } }
     compileOptions {
         sourceCompatibility = '1.8'
         targetCompatibility = '1.8'
     }
     flavorDimensions 'channels'
     productFlavors {
         myapp {
             dimension = 'channels'
             minSdkVersion 22
             proguardFiles 'proguard-rules.pro'
         }
         huawei {
             dimension = 'channels'
             minSdkVersion 22
             proguardFiles 'proguard-rules.pro'
         }
         xiaomi {
             dimension = 'channels'
             minSdkVersion 22
         }
     }
 }
 dependencies {
     implementation fileTree(include: ['*.jar'], dir: 'libs')
     androidTestImplementation('androidx.test.espresso:espresso-core:3.1.0', {
         exclude group: 'com.android.support', module: 'support-annotations'
     })
     // add library
     //...

     implementation 'com.github.bumptech.glide:glide:4.9.0'
     annotationProcessor 'com.github.bumptech.glide:compiler:4.9.0'
 }

• buildTime()是个自定义函数,返回时间.
• "${applicationId}_${variant.productFlavors[0].name}_${versionName}_${buildTime()}.apk".toLowerCase() 包名_渠道名_版本名_时间.apk