Final answer:
To create a signed APK for the release build of an app in Android Studio, prepare the app for release, generate a keystore file, select 'Generate Signed Bundle / APK' from the Build menu, provide the necessary signing information, and test the APK before distribution.
Step-by-step explanation:
Creating a Signed APK in Android Studio
When using Android Studio to create a signed APK file for the release build of an app, you must follow several steps. Initially, you need to prepare your application for release by making sure the code is error-free, optimized, and free of debug resources.
Subsequently, you will create a keystore file, if you don't have one already. This keystore securely stores the cryptographic keys needed to sign your APK.
Within Android Studio, you should access the Build menu and select Generate Signed Bundle / APK. Then choose APK and follow the prompts to configure the APK signing by providing your keystore information, key alias, and passwords. After configuring the build variants and selecting release, you can proceed with the build process.
Ensure the APK is signed with a valid certificate and remember to test the signed APK before distributing your app.