MapLibreParticleLab/platform/android/README.md

Mapbox Maps SDK for Android

The Mapbox Maps SDK for Android is a library based on Mapbox GL Native for embedding interactive map views with scalable, customizable vector maps onto Android devices.

Getting Started

This particular README is for people who are interested in working on and improving the Maps SDK for Android. If you're looking for more general information and instructions on the Maps SDK:

Visit https://docs.mapbox.com/android/maps/overview to see current documentation on the Maps SDK for Android.

Visit https://docs.mapbox.com/android/api/map-sdk to view the Maps SDK's current API reference Javadoc files.

See the Mapbox website's Android install flow to install and use the Mapbox Maps SDK for Android in an application.

Setup environment

These instructions are for developers interested in making code-level contributions to the SDK itself. If you instead want to use the SDK in your app, see above.

Getting the source

Clone the git repository and pull in submodules:

git clone git@github.com:mapbox/mapbox-gl-native-android.git && cd mapbox-gl-native-android
git submodule update --init --recursive

Installing dependencies

These dependencies are required for all operating systems and all platform targets.

• Latest stable Android Studio
• Update the Mapbox Maps SDK for Android with the latest
  • Android SDK Build-Tools
  • Android Platform-Tools
  • Android SDK Tools
  • CMake
  • NDK
  • LLDB
• Modern C++ compiler that supports -std=c++14*
  • clang++ 3.5 or later or
  • g++-4.9 or later
• Node.js
  • make sure npm is installed as well
• ccache (optional)

Note: We partially support C++14 because GCC 4.9 does not fully implement the final draft of the C++14 standard. More information in DEVELOPING.md.

Note: On macOS you can install clang with installing the Apple command line developer tools.

Opening the project

macOS

Execute the following command in this repository's root folder to generate the required build files and open the project with Android Studio:

make aproj

linux

run make android-configuration in the root folder of the project and open in Android Studio.

If you are using Arch Linux, install ncurses5-compat-libs.

Project configuration

Setup Checkstyle

Mapbox uses specific IDE settings related to code and check style. See checkstyle guide for configuration details.

Resolving duplicate file entries

With buck build support, Android Studio can complain about duplicate source files. To remove this warning, open MapboxGLAndroidSDK.iml find the list of excludeFolder entries and add <excludeFolder url="file://$MODULE_DIR$/../../../misc/" /> line.

Setting API Key

The test application (used for development purposes) uses MapTiler vector tiles, which require a MapTiler account and API key.

With the first gradle invocation, gradle will take the value of the MGL_API_KEY environment variable and save it to MapboxGLAndroidSDKTestApp/src/main/res/values/developer-config.xml. If the environment variable wasn't set, you can edit developer-config.xml manually and add your api key to the api_key resource.

Running project

Run the configuration for the MapboxGLAndroidSDKTestApp module and select a device or emulator to deploy on. Based on the selected device, the c++ code will be compiled for the related processor architecture. You can see the project compiling in the View > Tool Windows > Gradle Console.

More information about building and distributing this project in DISTRIBUTE.md.

Additional resources

Using the SDK snapshot

Instead of using the latest stable release of the Maps SDK for Android, you can use a "snapshot" or the beta version if there is one available. Our snapshots are built every time a Github pull request adds code to this repository's master branch. If you'd like to use a snapshot build, your Android project's gradle file should have -SNAPSHOT appended to the SDK version number:

// Mapbox SDK dependency
implementation 'com.mapbox.mapboxsdk:mapbox-android-sdk:9.1.0-SNAPSHOT'

You also need to have the section below in your build.gradle root folder to be able to resolve the SNAPSHOT dependencies:

allprojects {
    repositories {
        jcenter()
        maven { url 'https://oss.jfrog.org/artifactory/oss-snapshot-local/' }
    }
}

Symbolicating native crashes

When hitting native crashes you can use ndk-stack to symbolicate crashes. More information in this guide.