9 Cards is an open source home launcher for Android written in Scala. This mobile application does the bulk of the work for you, organizing your apps into collections, giving you quick and easy access to the apps you need most, when you need them.

For a full list of changes please view:Changelog

1. Prerequisites
2. Compile and Run
3. Properties File
4. Troubleshooting

• Download and install sbt.

• Download. You only need the command line tools.
• Set ANDROID_HOME environment variable pointing to the root folder.

You need an Android device and must enable USB debugging.

9 Cards needs the following Google APIs:

• Google Drive API for storing your devices in the cloud.
• Google Plus API for authenticating the user requests.

You need to create a project in the Google API Console with these two APIs enabled.

For that, you have 2 choices:

• Normal Mode (Recommended): You must create the keys in the Google Developers Console. You only need 10 minutes for that.
• Easy Mode: We give you the keys and you don't have to create the project in the Google Developers Console.

1. Go to the Google Developers Console.
2. From the project drop-down, select a project, or create a new one.

1. Enable the Google Drive API service:
   1. In the sidebar under "API Manager", select Library.
   2. In the list of Google APIs, search for the Google Drive API service.
   3. Select Google Drive API from the results list.
   4. Press the Enable API button.
2. In the sidebar under "API Manager", select Credentials.
3. In the Credentials tab, select the Create credentials drop-down list, and choose OAuth client ID.
4. Select Android as Application type.
5. Enter a key Name.
6. Find your certificate SHA1 fingerprint and paste it in the form where requested.
7. Enter com.fortysevendeg.ninecardslauncher in the package name field.
8. Click on "Create".

More info

1. Enable the Google Plus API service:
   1. In the sidebar under "API Manager", select Library.
   2. In the list of Google APIs, search for the Google+ API service.
   3. Select Google+ API from the results list.
   4. Press the Enable API button.
2. In the sidebar under "API Manager", select Credentials.
3. In the Credentials tab, select the Create credentials drop-down list, and choose OAuth client ID.
4. Select Web application as Application type.
5. Enter a key Name then select Create.
6. Then copy the client ID of the newly generated credential.

You must add the following content to ninecards.properties file:

# Backend V2
backend.v2.url=https://nine-cards.herokuapp.com
backend.v2.clientid=411191100294-sjhinp1i2gkp46u36ii7m16v9hog64nn.apps.googleusercontent.com

and you must launch SBT with the following command:

$ sbt -mem 2048 -Ddebug

At the end of the compilation, previously for installing on a cellphone, you must put the password of the keystore:

Enter keystore password:

The password is android.

Note: If you plan on working on this project, please consider using the Default Mode

To compile the project:

• Clone this GitHub project to your computer:

$ git clone [email protected]:47deg/nine-cards-v2.git

• Add a ninecards.properties file (See Add Debug Keys section).

• You need to set the heap size to at least 2M:

$ sbt -mem 2048

• Verify that your device is attached:

> devices

The output should look like:

[info]  Serial                 Model            Battery % Android Version
[info]  ---------------------- ---------------- --------- ---------------
[info]  XXXXXXXXXX             Nexus 6                66% 6.0.1  API 23

• Now you're ready to run the project, just execute:

> run

You need to add a ninecards.properties file in the project root folder.

This file provides some keys for different third party services. We'll see all these down below.

To begin with, you can use the template provided in the root folder:

$ cp ninecards.properties.default ninecards.properties

This is the content:

# Backend V2
backend.v2.url=
backend.v2.clientid=

# Third Parties
crashlytics.enabled=false
crashlytics.apikey=
crashlytics.apisecret=
strictmode.enabled=false
analytics.enabled=false
analytics.trackid=

# Firebase
firebase.enabled=false
firebase.url=
firebase.google.appid=
firebase.google.apikey=
firebase.gcm.senderid=
firebase.clientid=

# FlowUp
flowup.enabled=false
flowup.apikey=

• backend.v2.url: Defines the URL for the Backend. Visit the GitHub project for more information.
• backend.v2.clientid: This value is used for requesting a token id that will be used by the Backend to authenticate the user. It's the client id obtained in the Google Plus API section.

Crashlytics

• crashlytics.enabled: Enables or disables the Crashlytics service.
• crashlytics.apikey & crashlytics.apisecret: These values are fetched from your Crashlytics organization page.

Strict Mode

• strictmode.enabled: Enables or disables the Strict Mode.

Google Analytics

• analytics.enabled: Enables or disables the Google Analytics service.
• analytics.trackid: You can use your own tracking ID. See how to find your tracking code, tracking ID, and property number.

FlowUp

• flowup.enabled: Enables or disables the FlowUp service.
• flowup.apikey: These values are fetched from your FlowUp account.

### Google Firebase (Optional)

Google Firebase is used for push notifications.

Google Firebase

1. Create a Firebase project in the Firebase console, if you don't already have one. If you already have an existing Google project associated with your mobile app, click Import Google Project. Otherwise, click Create New Project.
2. Add a new app in Project Settings -> General
3. Select the newly created app and download the google-services.json
4. Open the file in a text editor. All bellow properties are taken from this file:

• firebase.enabled: Enables or disables the Google Firebase service
• firebase.url: Property project_info.firebase_url
• firebase.google.appid: Property client[0].client_info.mobilesdk_app_id
• firebase.google.apikey: Property client[0].api_key[0].current_key
• firebase.gcm.senderid: Property project_info.project_number
• firebase.clientid: Property client[0].oauth_client[x].client_id where x is the index of one element with client_type == 3

This section contains information about possible problems that may occur compiling 9 Cards.

When you compile the project, it's possible that you will have this error:

com.android.ide.common.process.ProcessException

It's a problem in the 64-bit system and you need to install the ia32-libs. You should install the following next:

sudo apt-get install lib32stdc++6 lib32z1

More information can be found here.

If you are using IntelliJ from unity panel it's possible that the app isn't finding the ANDROID_HOME environment variable.

Unity launcher doesn't source the user's environment from .bashrc and you should include the ANDROID_HOME in /etc/environment and IntelliJ will work fine.