Introduction: android-kotlin-fundamentals-apps
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This repository contains the solution code for the apps for the Android Fundamentals in Kotlin course, published by the Google Developer Training Team. See Android Training.

A “solution app” is an app that contains the code for a completed codelab.

Code for the starter apps in this course are in a different repository.


Each of the samples in this repository is associated with a codelab exercise from the Android Fundamentals in Kotlin course.

The Android Fundamentals in Kotlin course can be used for self-study, or as the basis of an instructor-led training. It is targeted towards beginning Android developers with a background in software development or computer science with at least two years of experience with a modern, object-oriented programming language, such as the Java programming language, and familiarity with basic software architecture principles.

Since this course is in Kotlin, it is assumed you know Kotlin at the level taught in the Udacity course, Kotlin Bootcamp for Programmers.


The samples, along with the course, assume basic competence in software design and development, as well as some background in computer science.

Specifically, to get started you need:

  • Familiarity with the general software development process for object-oriented applications using an IDE (Integrated Development Environment).
  • At least 1-3 years of experience with object-oriented programming and the Java programming language, or a comparable modern language.
  • Familiarity with the Kotlin programming language.

Android Studio Version

During development of this course, all samples were built using Android Studio 3.3, and the codelabs assume you are using Android Studio 3.3 with corresponding libraries and available features. See the Android Studio download page for details.

Getting Started

  1. Install Android Studio, if you don't already have it. (If you are just starting the course, you will be guided through this process.)
  2. Download the starter sample for the codelab.
  3. Open the sample into Android Studio.
  4. Build and run the sample. You may need to update gradle and library versions. Follow the guidance provided by Android Studio.


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Licensed to the Apache Software Foundation (ASF) under one or more contributor license agreements. See the LICENSE file distributed with this work for additional information regarding copyright ownership. The ASF licenses this file to you under the Apache License, Version 2.0 (the "License"); you may not use this file except in compliance with the License. You may obtain a copy of the License at

Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License.

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