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1. Required Android Setup

Choose your OS:

Steps

The first thing we need to do to start developing for Android is to install CodeWorks for Android 1R6u1, which will ensure that we have all the required programs and code needed to deploy to Android devices. In the following section, we will cover how to get CodeWorks for Android 1R6u1 installed on a development PC.

Choose Your Operating System

Windows

Mac OS

Linux

If you already have CodeWorks for Android 1R6u1 installed, but your environment variables have been lost, you can skip all of this and simply point the Editor to the install locations using the Edit Menu > Project Settings > Android SDK properties in the Editor.

It is highly recommended that you install CodeWorks for Android 1R6u1 while the Editor and Launcher are both closed to ensure that there are no problems with the install.

  1. To install CodeWorks for Android 1R6u1, navigate to the Engine > Extras > Android folder.

    The CodeWorks for Android 1R6u1 installer requires an installation of Visual Studio to complete successfully. Supported versions are 2013, 2015, and 2017.

    Install Type

    Location

    Binary

    [EngineInstallLocation]\Unreal Engine[EngineVersion]\Engine\Extras\Android

    GitHub

    [EngineSyncLocation\UE4\Engine\Extras\Android

    If you downloaded Unreal Engine 4 from Github, you will need to perform the following steps before you can run the CodeWorks for Android 1R6u1 installer. Please note that this applies to both Windows and Mac based PCs that download the Unreal Engine 4 source code from Github. If you are using the binary build downloaded from the launcher, then you can skip this part and go right into installing CodeWorks for Android 1R6u1.

    1. Once Unreal Engine 4 has been downloaded from Github and extracted, run the Setup.bat file to download the required files as well as the CodeWorks for Android 1R6u1 installer.

    2. After the Setup.bat has finished running, locate and run the CodeWorks for Android 1R6u1 installer, following the instructions below.

  2. Double-click on the CodeWorksforAndroid-1R6u1-windows.exe file to initiate the install process.

    AndroidWorks_11.png

  3. Click the Next button on the first window to begin the installation process.

    AndroidWorks_00.png

  4. Click the Next button to continue.

    AndroidWorks_01.png

  5. Set a location to download and install CodeWorks for Android 1R6u1 and then click the Next button.

    AndroidWorks_02.png

    It is perfectly fine to leave this set to the default location.

  6. Make sure that you are installing CodeWorks for Android 1R6u1 and then click the Next button.

    AndroidWorks_03.png

  7. Click on the check mark box labeled Accept All if you agree with the license terms and then press the Accept button.

    AndroidWorks_04.png

  8. A new window will be displayed that will show you the download and install progress of the required CodeWorks for Android 1R6u1 tools.

    You will need an Internet connection to complete this portion. Depending on the speed of your Internet connection, this could take anywhere from a few minutes to a few hours to complete.

    AndroidWorks_06.png

  9. Now press the Next button to continue the CodeWorks for Android 1R6u1 install.

    AndroidWorks_09.png

  10. Then press the Finish button to complete the install.

    AndroidWorks_10.png

  11. Finally, press the Yes button to restart your PC.

    AndroidWorks_12.png

    If you downloaded Unreal Engine 4 from Github, when CodeWorks for Android 1R6u1 has finished installing, restart your PC or Mac so the environment variables are set and then run the Setup.bat file one more time to download the required Android Development files.

If you already have CodeWorks for Android 1R6u1 installed, but your environment variables have been lost, you can skip all of this and simply point the Editor to the install locations using the Edit Menu > Project Settings > Android SDK properties in the Editor.

It is highly recommended that you install CodeWorks for Android 1R6u1 while the Editor and Launcher are both closed to ensure that there are no problems with the install.

Before you can install CodeWorks for Android 1R6u1 to your Mac you will need to make sure that Java 8 is installed. Use the link provided below to download and install Java 8.

  • Java 8 can be downloaded from here .

  1. To install CodeWorks for Android 1R6u1 navigate to the Engine > Extras > Android folder.

    Install Type

    Location

    Binary

    [EngineInstallLocation]\Unreal Engine[EngineVersion]\Engine\Extras\AndroidWorks\Mac

    GitHub

    [EngineSyncLocation\UE4\Engine\Extras\AndroidWorks\Mac

    If you downloaded Unreal Engine 4 from Github you will need to perform the following steps before you can run the CodeWorks for Android 1R6u1 installer. Please note that the following applies to both Windows- and Mac-based PCs that download the Unreal Engine 4 source code from Github. If you are using the binary build downloaded from the launcher, you can skip this part and go right into installing CodeWorks for Android 1R6u1.

    1. Once Unreal Engine 4 has been downloaded from Github and extracted, run the Setup.command file to download the required files as well as the CodeWorks for Android 1R6u1 installer.

    2. After Setup.command has finished running, locate and run the CodeWorks for Android 1R6u1 installer, following the instructions below.

  2. Double-click on the CodeWorks for Android 1R6u1-osx.dmg to load the CodeWorks for Android 1R6u1 installer.

    AndroidWorks_Mac_00.png

  3. Double-click the CodeWorks for Android 1R6u1 installer icon to start the installation process.

    AndroidWorks_Mac_01.png

  4. Click Next.

    AndroidWorks_Mac_02.png

  5. Click Next.

    AndroidWorks_Mac_03.png

  6. Specify a location where CodeWorks for Android 1R6u1 should be installed, then press the Next button.

    It is perfectly fine to leave this set to the default location.

    AndroidWorks_Mac_04.png

  7. When the CodeWorks for Android 1R6u1 Component Manager is displayed, press the Next button to begin the download and install process.

    AndroidWorks_Mac_05.png

  8. Click on the check mark box labeled Accept All if you agree with the license terms, and then press the Accept button.

    AndroidWorks_Mac_06.png

  9. The CodeWorks for Android 1R6u1 Component Manager will now begin to download and install the required tools.

    You will need an Internet connection to complete this portion. Depending on the speed of your Internet connection, this could take a few minute to a few hours to complete.

  10. Once everything has been installed, the following window will be displayed. Click on the Next button to continue.

    AndroidWorks_Mac_08.png

  11. Click on the Finish button to complete the CodeWorks for Android 1R6u1 install.

    AndroidWorks_Mac_09.png

    If you downloaded Unreal Engine 4 from Github, when CodeWorks for Android 1R6u1 has finished installing, restart your Mac so the environment variables are set and then run the Setup.command file one more time to download the required Android Development files.

Once CodeWorks for Android 1R6u1 has finished installing, you will need to edit your Bash file by doing the following:

  1. Open up the Mac Terminal.

    JH_01.png

  2. In the Terminal type, nano ~/.bash_profile.

    JH_02.png

  3. Scroll down to the end of the file and add, export JAVA_HOME=/Library/Java/JavaVirtualMachines/jdk1.8.0_121.jdk/Contents/Home.

    JH_03.png

    The above is the default path, if you installed somewhere else you need to make sure that your path points to the jdk1.8.0_121.jdk/Contents/Home.

  4. Press CTRL + X to exit the bash and then press Y to save the changes then press Enter to confirm the changes and finally restart your Mac.

  5. When your Mac restart, open up the Terminal and then input Monitor and press enter. If everything has been setup correctly you should see the Android Device Monitor splash screen.

    JH_04.png

Unreal Engine 4 uses a special version of the Android Software Development Kit (SDK), called CodeWorks for Android. CodeWorks for Android is the easiest way to set up the SDK and Native Development Kit (NDK) needed to develop Android projects with Unreal Engine 4. If you have older versions (prior to version 1R5) of the Android SDK installed (or, older versions of CodeWorks for Android), we recommend that you uninstall them and install CodeWorks for Android , using the CodeWorks for Android installer that is distributed with Unreal Engine 4.

We've bundled the CodeWorks for Android installer with Unreal Engine 4 to make sure that your Android SDK will be compatible with the Engine. It's important to note that, as of Unreal Engine version 4.16, the Engine includes CodeWorks for Android 1R6u1.

Installing CodeWorks for Android

For the purpose of showing you how to get started with Android on Linux, we will use CodeWorks for Android 1R6u1 while working with Unreal Engine version 4.14. The Engine should be closed before installing CodeWorks for Android 1R6u1. Also, please make sure that you have Java Development Kit 8 (JDK 8) installed, with your JAVA_HOME environment variable set to the correct version of the Java Development Kit (JDK). To verify that JAVA_HOME is set properly, enter echo $JAVA_HOME into the terminal. If you don't see the correct JDK version, download JDK 8 , and install it on your Linux computer, making sure to set the JAVA_HOME environment variable to the newly installed JDK.

Before continuing, please note that Android Vulkan on Linux is not supported at this time.

  1. Getting started, open the Terminal and navigate to the [UE4Root] folder that contains the compiled engine (using the cd command, changing the shell working directory).

    LinuxAndroid_Step0.png

  2. From inside of the [UE4Root] folder, navigate to the CodeWorks for Android 1R6u1 binary file (CodeWorksforAndroid-1R6u1-linux-x64.run) by entering the following string into the terminal: cd Engine/Extras/AndroidWorks/Linux.

    LinuxAndroid_Step1.png

  3. Now, enter ls -l into the terminal, displaying a long listing of the directory's contents.

    LinuxAndroid_Step2.png

    The file's permission settings tell you that CodeWorksforAndroid-1R6u1-linux-x64.run is not ready for execution. Before you can run the CodeWorks for Android 1R6u1 binary, you need to change the file's access rights to allow for "execute" permissions.

  4. To change the file permission settings of CodeWorksforAndroid-1R6u1-linux-x64.run, enabling it to run like a normal executable, enter chmod +x CodeWorksforAndroid-1R6u1-linux-x64.run into the terimal.

    LinuxAndroid_Step3.png

    If you want to learn more about the chmod command, enter man chmod into the terminal to read the manual page covering how chmod works.

  5. Now, enter ls -l into the terminal.

    LinuxAndroid_Step4.png

    The file's permission settings highlighted in the image indicate that the CodeWorks for Android 1R6u1 binary file is ready for execution.

  6. To run the CodeWorks for Android binary, enter ./CodeWorksforAndroid-1R6u1-linux-x64.run into the terminal.

    LinuxAndroid_Step5.png

    Please make sure that your computer has a valid Internet connection prior to moving onto the next step.

  7. After the CodeWorks for Android 1R6u1 binary unpacks the NVIDIA CodeWorks for Android installer, you'll see the Installer Welcome window, prompting you to click either Next or Cancel.

    LinuxAndroid_Step6.png

  8. From the Installer Welcome window, click the Next button to begin the installation process.

    LinuxAndroid_Step7.png

  9. Now, from the Android Developer's Welcome Window, click the Next button to continue the installation process.

    LinuxAndroid_Step8.png

  10. Specify the directory where CodeWorks for Android 1R6u1 should be installed and downloaded.

    LinuxAndroid_Step9.png

  11. Click the Next > button to download CodeWorks for Android 1R6u1 from NVIDIA, ultimately installing CodeWorks on your computer.

    LinuxAndroid_Step10.png

  12. Now, verify that you're installing CodeWorks for Android 1R6u1 before clicking the Next button from the Android Component Manager window.

    LinuxAndroid_Step11.png

  13. After the Terms and Conditions window appears, take some time to read through all of the Terms and Conditions before selecting the Accept All check box.

    LinuxAndroid_Step12.png

  14. Now, click the Accept button to begin the installation process.

    LinuxAndroid_Step13.png

  15. Once the installer completes the installation process, go ahead and click the Next > button to proceed.

    LinuxAndroid_Step14.png

  16. After the Installation Complete window opens, click the Finish button to complete the installation.

    LinuxAndroid_Step15.png

  17. Make sure to reboot your computer before moving onto the next step.

    LinuxAndroid_Note16.png

    If you don't want to use Ubuntu's GUI, you can restart your computer by entering sudo reboot into the terminal.

End Result

When completed, you will have all of the required Android SDKs installed and ready for use in building an Unreal Engine 4 project that can work on Android devices.

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