1 first open Android Studio and select build->; Generate a signed APK...2 to pop up a dialog window. If there is no key, create a new key. 3 Create a new key, and you can fill in related items according to your own needs. Fill in the alias and password of the key we created. 5 Click Next Next and finish. 6 Wait a while, and the following prompt will appear, indicating that the application has been packaged and successfully signed. 7 The above is the experience of how to package signatures in Android Studio, and I hope it will help you.