General

This year the android lectures will be slightly different than the past years. Instead of a series of longer (90min) lectures, this year there is a youtube playlist with multiple short (<20min) videos, introducing you to the basics of android application development.

There are also example apps available on the GitHub attached to the youtube channel, as well as the GitHub from the past years. Both are linked in the module. You may use parts of these in your solutions, provided you add a reference in your source code. (NB: it might not always be possible to (easily) run a cloned project from the repo, often because of different SDK versions). If you run into problems when running the projects, you could try to let gradle rebuild the project on your machine, or (a bit more tedious) create an empty project and add the source files to your project (don't forget to add the dependencies as well).

To start developing you will need Android Studio, you can download the program from https://developer.android.com/studio.

We use the following course from android as extra material to go through to gain a deep understanding of android:

https://developer.android.com/courses/android-basics-compose/course

Overview of subjects

	Videos	Readings and Exercises (pathways of the android course)
Lab 1:1 - Graphics, Touch events, Animations	Introduction Create 'Hello Counter app' Activities and Lifecycles NBack skeleton code runthrough Application architecture * Navigation in Jetpack Compose State * No video yet, but follow the link for more information until video gets uploaded	Unit 1: Pathway 2 and 3 Unit 2: Pathway 2 and 3 Unit 4: Pathway 1 and 2 (for higher grade you also need to program data persistance, for which you can use Unit 6)
Lab 1:2 - Network Communication	Data Persistance Coroutines [Documentation] Networking [Slides]	Unit 3: Pathway 2 Unit 5: Pathway 1 Unit 6 Android code with small examples for multi threading, collect data from network, parsing JSON, test network connection and persistant storage TestLab1_2.zip
Lab 1:3 - Bluetooth Communication	As for now there won't be a separate video on bluetooth for Android. However, there will be a general lecture for bluetooth. See these slides for some old android specific information: link to slides Use this SDK for your polar communication: https://github.com/polarofficial/polar-ble-sdk

Borrow a hardware device

In the first part of the course, you can run and debug your applications on the emulator. When programming for sensors, Bluetooth, etc. the applications can only run on a real device. If you haven't got one, you can borrow an Android device for the duration of the course (contact Jonas Willén).

Additional Android Resources

Android Guides: https://developer.android.com/guide

Stanford course: https://www.youtube.com/playlist?list=PLXOcyuD_gdPeYwGfQE6B2WJJm2X9lrWgX

Kotlin youtube snippets: https://www.youtube.com/@PhilippLackner

Resources

Android Studio

Android Studio is the preferred IDE for developing Android applications: https://developer.android.com/studio

Installation instructions: https://developer.android.com/studio/install
Build and run your app: https://developer.android.com/studio/run
- Run your app on the emulator, AVD (virtual device): https://developer.android.com/studio/run/emulator
- Run your app on a hardware device: https://developer.android.com/studio/run/device

If you encounter the error message "Missing system image" when running your app on an AVD, start the AVD Manager (Tools/AVD Manager), select a device, and then Actions/Download to download the image.

Shortcuts in Android Studio

There are many shortcuts making it easier and faster to write code. Some useful are

Autocompletion of code: TAB
Auto import and similar fixes: ALT-TAB
Format code: CTRL-ALT-L
Generate getters/setters/toString/constructors etc: ALT-INSERT

More: https://developer.android.com/studio/intro/keyboard-shortcuts ("writing code")