• 100% Kotlin.
• App architecture - (MVVM).
• Asynchronous programming - (Corountines).
• Dependency injection - (Koin).
• Observable data holder class - (Livedata).
• HTTP client - (OkHttp).
• Type-safe HTTP client - (Retrofit).
• A Java serialization/deserialization library to convert Java Objects into JSON and back - (Gson).
• Android logging - (Timber).
• Android SharedPreferences delegation library for Kotlin - (Kotpref).
• A beautiful, fluid, and extensible dialogs API for Kotlin & Android - (material-dialogs).
• Android library which makes playing with sensor events & detecting gestures a breeze - (Sensey).
• Useful extensions to eliminate boilerplate code in Android SDK and focus on productivity - (KAndroid).
• Android utilities - (AndroidUtilCode).
• Code Formatting - (ktlint) & (ktlint-gradle).

Manually:

// build.gradle (app)


android {
  ...

  buildTypes {
    def BASE_URL = "BASE_URL"

    def DEV = "\"" + "<ENTER_YOUR_HOST>" + "\""

    def PROD = "\"" + "<ENTER_YOUR_HOST>" + "\""

    debug {
      buildConfigField "String", BASE_URL, DEV
    }

    release {
      buildConfigField "String", BASE_URL, PROD

      ...
    }
  }

  ...
}

Dynamically:

You can shake your real device, or you can use Cmd+M when running in an Android emulator on Mac OS and Ctrl+M on Windows and Linux to open dialog menu.

The dialog menu is disabled in release (production) builds.