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Installation

How to import FTCLib into your Android Studio FTC Project

build.common.gradle

First, you need to add the mavenCentral library repository to your build.gradle file at the project root:
build.gradle
repositories {
mavenCentral()
}
Next, minSdkVersion to 24 and multiDexEnabled to true:
build.common.gradle
defaultConfig {
applicationId 'com.qualcomm.ftcrobotcontroller'
minSdkVersion 24
targetSdkVersion 28
multiDexEnabled true
Next, change JavaVersion to 8 :
build.common.gradle
compileOptions {
sourceCompatibility JavaVersion.VERSION_1_8
targetCompatibility JavaVersion.VERSION_1_8
}

Only If Using CV:

Remove all instances of "arm64-v8a"
build.common.gradle
ndk {
abiFilters "armeabi-v7a"
}
ndk {
abiFilters "armeabi-v7a"
}

build.gradle (TeamCode)

Add this dependency block for the base library:
build.gradle (Module: TeamCode)
dependencies {
implementation 'org.ftclib.ftclib:core:2.1.1' // core

OR

Add this dependency block for the vision library:
build.gradle (Module: TeamCode)
dependencies {
implementation 'org.ftclib.ftclib:vision:2.1.0' // vision
implementation 'org.ftclib.ftclib:core:2.1.1' // core
}

Install EasyOpenCV Dependency

Since FTCLib depends on EasyOpenCV for vision, and because EasyOpenCV depends on OpenCV-Repackaged, you will need to copy libOpenCvAndroid453.so into the FIRST folder of the Robot Controller (i.e. connect the Robot Controller to your computer with a USB cable, put it into MTP mode, and drag 'n drop the file).

Sync Gradle and Finished!

Click that button and if successful, you can now use FTCLib