Please refer to the active development branch develop to see the latest source code.

Native, iOS & Android Leanplum SDK for Unity3D.

• Make sure you have following Homebrew packages installed:

brew install maven
brew install gradle
brew install bash
brew install wget
brew install Caskroom/cask/android-sdk
brew install Caskroom/cask/unity

• Download iOS and Android module in Unity.
• Go to Unity's preference to set Android SDK path. It should be same as $ANDROID_HOME, e.g. ~/Library/Android/sdk

To build a unitypackage from source, execute the build shell script from the root of this repository:

./build.sh --apple-sdk-version=2.3.0 --android-sdk-version=4.3.1 --version=1.7.0

or to use latest version of Android/iOS SDK (this uses public github api to make request)

./build.sh

or

make unitypackage

This will create a new unitypackage in Leanplum-Unity-Plugin that you can import into other projects.

Open up Makefile and update versions of the SDK to desired version.

To manually release new build run:

make unitypackage

or

make release

which will build new version of the Unity SDK, tag it with UNITY_VERSION specified in Makefile and push new commit to master branch.

Import unitypackage into your project, make sure you select Editor, LeanplumSDK and Plugins folders, LeanplumSample is optional.

Make sure you add

android.enableJetifier=true
android.useAndroidX=true

in your gradle.properties file, because latest Leanplum SDK is using androidx support libraries.

You can choose Leanplum dependencies in your gradle.build file of the exported project.

If you are using FCM, download google-service.json file and put it into root of Assets folder. When Android project is exported it will automatically parse the file.

No additional setup is needed.

The Leanplum SDK contains binaries for all architectures (including simulator), when archiving and publishing the app on the app store simulator bitcode needs to be removed from all frameworks including our own. This can be achived with provided script

echo "Target architectures: $ARCHS"

APP_PATH="${TARGET_BUILD_DIR}/${WRAPPER_NAME}"

find "$APP_PATH" -name '*.framework' -type d | while read -r FRAMEWORK
do
FRAMEWORK_EXECUTABLE_NAME=$(defaults read "$FRAMEWORK/Info.plist" CFBundleExecutable)
FRAMEWORK_EXECUTABLE_PATH="$FRAMEWORK/$FRAMEWORK_EXECUTABLE_NAME"
echo "Executable is $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

FRAMEWORK_TMP_PATH="$FRAMEWORK_EXECUTABLE_PATH-tmp"

# remove simulator's archs if location is not simulator's directory
case "${TARGET_BUILD_DIR}" in
*"iphonesimulator")
    echo "No need to remove archs"
    ;;
*)
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "i386") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "i386" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "i386 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    if $(lipo "$FRAMEWORK_EXECUTABLE_PATH" -verify_arch "x86_64") ; then
    lipo -output "$FRAMEWORK_TMP_PATH" -remove "x86_64" "$FRAMEWORK_EXECUTABLE_PATH"
    echo "x86_64 architecture removed"
    rm "$FRAMEWORK_EXECUTABLE_PATH"
    mv "$FRAMEWORK_TMP_PATH" "$FRAMEWORK_EXECUTABLE_PATH"
    fi
    ;;
esac

echo "Completed for executable $FRAMEWORK_EXECUTABLE_PATH"
echo $(lipo -info "$FRAMEWORK_EXECUTABLE_PATH")

done

To accomplish this, add Run Script in your build steps after Embed Frameworks phase.

To make changes to this SDK, open the LeanplumSample Unity project that is included in this repository. That project contains the Leanplum SDK itself as well as a small sample application that you can use to test your changes as you iterate.

To run the sample and test your changes, open the scene Assets/LeanplumSample/LeanplumSample.unity. Populate your Leanplum App Id and keys from the Leanplum dashboard into the Leanplum GameObject in the hierarchy, then press Play. You can experiment with changing variables by changing the value of the rainEmissionRate variable on your Leanplum dashbaord. If everything's working properly, you should see the rain particles' emission change in realtime while the app is playing in your editor.

You can make changes to this SDK directly in the project as needed, testing them with the sample scene as explained above. When you're satisfied with your changes, you can use the Tools/Leanplum/Export Package menu option to export a new unitypackage containing your latest changes. This menu option assumes you've run the build.sh script at least once.

You may opt-in to significantly higher performance with the Leanplum SDK by defining one or both of these preprocessor symbols in your Unity project:

LP_UNENCRYPTED: Defining this symbol will cause Leanplum to use Unity's optimized PlayerPrefs for local storage instead of its own string-concantenation-heavy, legacy-Hashtable-based, GC-hungry version. However, the price you pay is that local storage is no longer encrypted. The choice is yours to make on a per-project basis.

LP_UNITYWEBREQUEST: Defining this symbol will cause the Leanplum SDK to use Unity's modern web stack instead of the legacy www class for network operations. This yields some important memory and performance benefits on mobile devices for some applications.

This release now supports the normal Unity workflow: open Unity, make changes, test your changes, then publish.

The unitypackage that is generated for this SDK no longer contains a .DLL that was compiled with a fixed version of gmcs and fixed preprocessor symbols. Instead, the package now contains the source .cs files for Leanplum. This means you can now successfully rely on preprocessor symbols within this SDK, such as UNITY_5_6_OR_NEWER, the per-platform symbols (e.g. UNITY_IOS, UNITY_ANDROID, etc.) as needed and those conditionals will work properly in end users' projects.

This release of the SDK adds support for UnityWebRequest and friends to reap the memory benefits and optimizations of moving away from the old www class in Unity.

TLDR; Unity <-> Leanplum.cs <-> SDKObject <-> [PLATFORM].cs <-> Bridge <-> iOS/Android SDK

First you declare your functions in Leanplum.cs which is just calling the SDK factory method. In order for Factory to work you need to have an abstract methods (interface/protocol), which is the LeanplumSDKObject.cs. You need to implement these methods for each platform: native, ios, and android. For Android/iOS there are bridge files. This is helpful when sending custom objects such as List to C# by using JSON.

open "/Unity SDK/LeanplumSample/Assets/Standard Assets/Leanplum/LeanplumWrapper.cs"

Before calling Leanplum.Start() add

Leanplum.Started += delegate(bool success) {
  Debug.Log("Variants: " + Leanplum.Variants().Count);
  Debug.Log("Messages: " + Leanplum.MessageMetadata().Keys.Count);
};

You can see more at https://www.leanplum.com/dashboard#/5019738286063616/help/docs/unity

Please follow the guidelines under https://github.com/Leanplum/Leanplum-Unity-SDK/blob/master/CONTRIBUTING.md

Once you have done that, in general:

1. Fork it!
2. Create your feature branch: git checkout -b feature/my-new-feature
3. Commit your changes: git commit -am 'Add some feature'
4. Push to the branch: git push origin feature/my-new-feature
5. Submit a pull request :D

See LICENSE file.

Leanplum does not support custom modifications to the SDK, without an approved pull request. Please send a pull request if you wish to include your changes.