The File Extensions Database

.AIDL File Extension

  • Developer by: Google
  • Category: Developer Files
  • Format: Text

What is an .AIDL file?

.AIDL is Android Interface Definition Language File

An AIDL file is used by Android app developers to enable communication between different apps. It contains Java source code that defines an interface, or contract, for how apps can communicate with each another.

AIDL is an implementation of the Interprocess Communication (IPC) protocol provided by Android. It allows one application to communicate with another application running in a different process. The AIDL implementation was developed to alleviate the time burden on developers who would otherwise have to create code for marshalling objects across process boundaries.

After creating the AIDL file, you should save your AIDL file in the src/ directory of your project. When you build your application, an "IBinder" interface file with a ".java" extension will be generated in your project's gen/ directory. The .JAVA file will bear the same filename as the AIDL file from which it was created.

Common AIDL Filenames

IInAppBillingService.aidl - The Android open source in-app billing (IAB) interface provided by Google for incorporating in-app billing in your app.

Programs that open Android Interface Definition Language File
Google Android SDK
Google Android SDK
Google Android SDK

How to solve problems with AIDL files

  • Associate the AIDL file extension with the correct application. On :
    Windows: Right click on any AIDL file and then click "Open with" > "Choose another app". Now select another program and check the box "Always use this app to open *.AIDL files". Mac: Right click (or Ctrl-click) the AIDL file, then click "Open with" > "Other...". Then choose another program and check the "Always Open With" box. Linux: Right click on the file, and select "Open with" and choose another program. iPhone: Tap the file. If you do not see an app to open the file, then tap Share "Share" and choose an app. Alternatively, save the file. Then open the Files app Files app. There long-press on the file, then release your finger. You will see a black menu bar. Then tap "Share" and select an app. Android: Tap the Settings icon on your smartphone, then tap on the Apps section. There tap the Options icon in the top right-hand corner of the screen to change the default apps.
  • Update your software that should actually open .AIDL is Android Interface Definition Language File. Because only the current version supports the latest AIDL file format. Search, therefore, e.g. on the Google manufacturer website after an available .AIDL is Android Interface Definition Language File update.
  • To make sure that your AIDL file is not corrupted or virus-infected, get the file again and scan it with antivirus software.