Steps to Add ZSDK_ANDROID_API.jar to your Eclipse project
Open your Android® project
Expand the libs directory of the project. (Create it if it doesn't exist)
Drag all the files from your [Install Dir]/android/[build version]/lib directory into the libs directory of the Android project. (where [Install Dir] is the directory chosen during the installation process, and [build version] corresponds to the desired build)
Steps to add ZSDK_ANDROID_API.jar to your Android Studio project
Open your Android® project
Open the Project Tool Window
Switch the Project Tool Window into "Project" view using the provided drop-down menu
Navigate to the "app/libs" folder under your application
Copy and Paste all the files from your [Install Dir]/android/[build version]/lib directory into the libs directory of the Android project. (where [Install Dir] is the directory chosen during the installation process, and [build version] corresponds to the desired build)
Select the imported libraries, right click and select "Add As Library..."
Select the appropriate module, and click the OK button
Open the "build.gradle" file for the application module
Under the "android" item, add the following statements: packagingOptions {
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/DEPENDENCIES'
}