1. Multi-channel concept

• APP s are published to different application platforms to monitor from which platform users are installed.

2. Why multi-channel packaging

• Statistics User Installation APP Sources
• Batch modify generated apk file name
• Changeable package name
• Generate different application names or icons

3. Multi-Channel Configuration

• Add a meta-data tag to the application tag of AndroidManifest.xml to define the MTA_CHANNEL placeholder as follows
  

  <meta-data android:name="MTA_CHANNEL"
              android:value="${MTA_CHANNEL_VALUE}" />

• Modify the build.gradle file under app and add the productFlavors property configuration placeholder
  

  android {
      compileSdkVersion 21
      buildToolsVersion "21.1.2"
  
      defaultConfig {
          applicationId "com.aimerd.channel"
          minSdkVersion 11
          targetSdkVersion 21
          versionCode 1
          versionName "1.0.0"
          multiDexEnabled true
      }
  
      buildTypes {
  

          debug {
              minifyEnabled false
              debuggable true
          }

          release {
              // Do not display Log
              buildConfigField "boolean", "LOG_DEBUG", "false"
              //Enable the ability to obfuscate code
              minifyEnabled true
              //apk package generated by compression alignment
              zipAlignEnabled true
              //Specify confusion rules that require compression for optimized confusion Replace proguard-android.txt with proguard-android.txt
              proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
              //Remove unused resource files
              shrinkResources true
              //Enable support for multidex
              multiDexEnabled true
          }
      }
  
      productFlavors 
          uc {
              manifestPlaceholders = [MTA_CHANNEL_VALUE: "uc"]
          }
          _360 {
              manifestPlaceholders = [MTA_CHANNEL_VALUE: "360"]
          } 
          baodu {
              manifestPlaceholders = [MTA_CHANNEL_VALUE: "baidu"]
          }
          xiaomi {
              manifestPlaceholders = [MTA_CHANNEL_VALUE: "xiaomi"]
          }
      }
  }
  

  dependencies {
      compile fileTree(dir: 'libs', include: ['*.jar'])
      compile 'com.android.support:appcompat-v7:23.3.0'
  }

4. Generate Channel Package

• Type gradlew assembleRelease on the command line to generate all Release packages in the buildoutputs\apk directory

• Generate the specified package (uc|360|baidu|xiaomi), the specified version (Release|Debug), and the Gradle Project on the right can help you
  

From then on, the packaging is complete