Build and Debug Your Android From the Command Line

Build and Debug Your Android from the Command Line.
Use gradle/gradlew.
These commands all execute under android gradle project’s root folder.

1. show all useable gradlew commands:

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./gradlew tasks

2. Build a debug APK

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./gradlew assembleDebug

3. Build the APK and immediately install it on a running emulator or connected device:

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./gradlew installDebug

4. Build a release version.

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./gradlew assembleRelease
  • You must config your singningConfigs to enable release build. If you had not config this, this command will build a unsigned apk.

Open the module-level build.gradle file and add the signingConfigs {} block with entries for storeFile, storePassword, keyAlias and keyPassword, and then pass that object to the signingConfig property in your build type. For example:

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android {
  ...
  defaultConfig { ... }
  signingConfigs {
    release {
      storeFile file("my-release-key.jks")
      storePassword "password"
      keyAlias "my-alias"
      keyPassword "password"
    }
  }
  buildTypes {
    release {
      signingConfig signingConfigs.release
      ...
    }
  }
}

  • Because Gradle reads paths relative to the build.gradle, the above example works only if my-release-key.jks is in the same directory as the build.gradle file.