Code Compilation and Project Settings

Compiling the SDK

Use Android Studio to create an Android project and set the package name to com.huaweicloud.sdk.iot.device.

Figure 1 Creating an Android project using Android Studio
Copy the Java source code of the iot-device-sdk-android project to the com.huaweicloud.sdk.iot.device package.

Figure 2 Copying the Java source code to the package

Configure the build.gradle file in the app directory.

Modify the code in the build.gradle file.
Figure 3 Deleting configuration data from the Android SDK

Add the following compilation scripts to the build.gradle file.

task cleanJar(type: Delete){
    // Delete the existing data.
    delete 'build/libs/com.huaweicloud.sdk.iot.device-1.0.0.jar'
    delete 'build/libs/classes/'
}

task copyJavaclasses(type: Copy) {

    // Set the file to be copied.
    from('build/intermediates/javac/release/classes')

    // Store the JAR package.
    into('build/libs/')
}

task makeJar(type: Exec){
    workingDir 'build/libs/'
    commandLine 'cmd', '/c', 'jar cvf com.huaweicloud.sdk.iot.device-1.0.0.jar -C ./ .'
}

cleanJar.dependsOn(build)
copyJavaclasses.dependsOn(cleanJar)
makeJar.dependsOn(copyJavaclasses)

Add the following three dependencies to the build.gradle file:

implementation 'com.google.code.gson:gson:2.8.6'
implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.5'
implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.0.0'

After the Android project is configured, run task makeJar in the build.gradle file (ensure that the Java environment variable has been added) to generate a JAR package.
Figure 4 Generating a JAR package using the Android SDK
Check whether the JAR package is stored in the app/build/libs directory.
Figure 5 Obtaining the JAR package

Setting the Code Project

Add the generated JAR package to the app/libs directory.

Add the following dependencies to build.gradle:

implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'androidx.localbroadcastmanager:localbroadcastmanager:1.0.0'
implementation 'org.eclipse.paho:org.eclipse.paho.client.mqttv3:1.2.5'
implementation 'com.google.code.gson:gson:2.8.6'
implementation group: 'org.bouncycastle', name: 'bcpkix-jdk15to18', version: '1.68'
implementation group: 'org.bouncycastle', name: 'bcprov-jdk15to18', version: '1.68'
implementation group: 'com.squareup.okhttp3', name: 'okhttp', version: '4.9.1'