Once the project has been developed, signature packaging is essential if you are distributing to Google Play or to each third-party channel, which details the entire signature packaging process and how to view the signature.
1. Create a signature file
Select items to package-click build-in the pop-up menu to select Generate Signed APK ...
2. Select the Packaged module
Select the module to be packaged and click Next
3. Create a new signature file
Create a new signature file for publishing, click the Create New button
4. Fill in the signature file information
Select the signature file path, fill in the key store password, key password, alias, authentication age and full name, etc., click OK
5. Confirmation Information
Confirm the information is correct, tick the remember password (optional), click Next
6. Select a Build Type
Select Package file storage path and package type, click Finish
7. Set the control password
Enter your password and click OK
8. Creation Success
If the creation succeeds there should be a prompt box prompt, as shown in, click Reveal in Finder to view the generated apk
Android Studio Signature Package