Implement Google Analytics for Android in Qt

Attila

I'm trying to implement Google Analytics for Android into the native Android part of a Qt project. I'm following these instructions for Google Analytics v4.

The instructions talk about editing the project-level and the app-level build.gradle files. My first problem is here - there is only an app-level build.gradle that I can edit in Qt. I tried anyway and put all the lines into that build.gradle file (I have to admit I had little idea of what I was doing then).

I also generated the necessary configuration file (google-services.json), and put it into the root folder of the exported Android files.

I also set the gradle version in gradle-wrapper.properties to gradle-2.10.

Now when I compile, I get this error:

Dex: Error converting bytecode to dex:
Cause: com.android.dex.DexException: Multiple dex files define Landroid/support/annotation/AnimRes;
    UNEXPECTED TOP-LEVEL EXCEPTION:
com.android.dex.DexException: Multiple dex files define Landroid/support/annotation/AnimRes;
(...)

The app used to work properly so far. I'm using Qt 5.6.
Have you had any experiences with implementing Google Analytics v4 or this issue?

Attila

Managed to solve this.
The problem was that android-support-v4.jar was in the libs folder, and it was also listed as a dependency in the build.gradle, thus creating a conflict.
Deleting the .jar file solved this error.

Google Analytics is working now. My build.gradle looks like this:

buildscript {
    repositories {
        jcenter()
    }

    dependencies {
        classpath 'com.android.tools.build:gradle:1.5.0'
        classpath 'com.google.gms:google-services:2.0.0-beta6'
    }
}

allprojects {
    repositories {
        jcenter()
    }
}

apply plugin: 'com.android.application'

dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])
    compile 'com.android.support:appcompat-v7:23.2.0'
    compile 'com.android.support:support-v4:23.2.0'

    compile 'com.google.android.gms:play-services-analytics:8.4.0'
}

android {
    /*******************************************************
     * The following variables:
     * - androidBuildToolsVersion,
     * - androidCompileSdkVersion
     * - qt5AndroidDir - holds the path to qt android files
     *                   needed to build any Qt application
     *                   on Android.
     *
     * are defined in gradle.properties file. This file is
     * updated by QtCreator and androiddeployqt tools.
     * Changing them manually might break the compilation!
     *******************************************************/

    compileSdkVersion androidCompileSdkVersion.toInteger()

    buildToolsVersion androidBuildToolsVersion

    sourceSets {
        main {
            manifest.srcFile 'AndroidManifest.xml'
            java.srcDirs = [qt5AndroidDir + '/src', 'src', 'java']
            aidl.srcDirs = [qt5AndroidDir + '/src', 'src', 'aidl']
            res.srcDirs = [qt5AndroidDir + '/res', 'res']
            resources.srcDirs = ['src']
            renderscript.srcDirs = ['src']
            assets.srcDirs = ['assets']
            jniLibs.srcDirs = ['libs']
       }
    }

    lintOptions {
        abortOnError false
    }
}

apply plugin: 'com.google.gms.google-services'