Using the Built-in Appmethod Java Libraries for Android

Go Up to Using Java Libraries in Your Appmethod Android Apps

The Appmethod installation includes a set of Java libraries that are required by FireMonkey as a whole or by certain components and platform services of FireMonkey. Appmethod also provides one or more Object Pascal units and C++ header files for each one of those Java libraries. You can include those Object Pascal or C++ files in your Appmethod applications to access the API of the underlying Java libraries.

The Appmethod installation also includes a classes.dex file, which is the result of converting this set of Java libraries into a single Dalvik Executable file. Appmethod includes the classes.dex file in your applications by default when you deploy your applications for the Android target platform. This file allows your Appmethod applications to interact with the Android API and the rest of the built-in Appmethod Java libraries at run time.

List of Built-in Appmethod Java Libraries for Android

The Appmethod installation includes the following Java libraries:

Library	Native Files	Description
Android API	Androidapi.JNI.App Androidapi.JNI.Dalvik Androidapi.JNI.GraphicsContentViewText Androidapi.JNI.Hardware Androidapi.JNI.InputMethodService Androidapi.JNI.Java.Security Androidapi.JNI.JavaTypes Androidapi.JNI.Location Androidapi.JNI.Media Androidapi.JNI.Net Androidapi.JNI.OpenGL Androidapi.JNI.Os Androidapi.JNI.Provider Androidapi.JNI.Telephony Androidapi.JNI.Util Androidapi.JNI.VideoView Androidapi.JNI.Webkit Androidapi.JNI.Widget	API of the Android platform.
Android Support	Androidapi.JNI.Support	Set of libraries that provide a wide array of different features for Android programming.
FireMonkey	Androidapi.JNI.Embarcadero	Library that provides the core functionality required by the FireMonkey Application Platform on the Android platform.
Google Mobile Ads	Androidapi.JNI.AdMob	SDK of the Google Mobile Ads service.
Google Analytics	Androidapi.JNI.Analytics	SDK of the Google Analytics service.
Google Play Application Licensing	Androidapi.JNI.Licensing	License Verification Library, a collection of helper classes to simplify adding licensing to an Android application.
Google Play In-app Billing	Androidapi.JNI.InAppBilling	API of the Google Play In-app Billing service.
Google Play Services	Androidapi.JNI.PlayServices	API of the Google Play services.
APK Expansion	Androidapi.JNI.ApkExpansion	SDK for hosting Android APK expansion files on the Google Play servers.
Cloud Messaging	Androidapi.JNI.PlayServices.GCM	SDK of the Google Cloud Messaging service.

The FireMonkey Java library is an Embarcadero library. The APK Expansion and Cloud Messaging Java libraries are third-party libraries that include modifications by Embarcadero. The rest of the Java libraries listed in the table above are unmodified third-party libraries.

The files in the Native Files column are the files that you can include in your Appmethod applications to access the APIs of these Java libraries from your native code. You can find these files in the following paths within the Appmethod installation folder (C:\Program Files (x86)\Embarcadero\Studio\17.0):

• Object Pascal units: source\rtl\android (.pas file extension)
• C++ header files: include\android\rtl (.hpp file extension)

Some of the features of the third-party Java libraries may require:

• Adding Uses Permissions to your Android applications.
• Customizing the AndroidManifest.xml file of your Android application.

Check the official documentation of each third-party library for more information.

Disabling Unnecessary Built-in Appmethod Java Libraries to Decrease the Size of Your Application

By default, the classes.dex file of any Android application created using Appmethod includes all the Java libraries listed in the table above. While this ensures that your application always works, it also increases the size of your application package.

If you know for sure that your application does not use some of these built-in Java libraries, such as those for advertising or analytics, you can remove those unnecessary libraries from your project so that they are not included in your application package anymore. You can always add them back later if you need them as your application provides new features.

To remove a built-in Java library from your project:

1. On the Project Manager, expand the Libraries node within Target Platforms > Android.
2. Right-click the Java library file that you do not want to include in the classes.dex file of your application.
3. Select Disable to disable the selected Java library file.

   

To enable a previously-disabled built-in library, repeat these steps but select Enable instead of Disable.

See Also

• Using a Custom Set of Java Libraries In Your Appmethod Android Apps

Samples

• FireMonkey Device Info sample