First, you need to ensure that the project has been completed and can run, and then configure the application information in the build.gradle file. Then, select the build type, including debugging and publishing. Debug is used for development and testing, which contains complete debugging information and will not confuse the code. release is used for publishing to the application store, which will confuse and optimize the code to reduce the APK size.

Then the signature configuration is carried out to ensure the integrity of APK and prevent tampering. Finally, after completing the construction, find the generated APK file in the specified directory, install it on the device or simulator and run it. Before releasing the application, you need to read and understand the release guidelines and policies of Google Play Store, use obfuscation tools to reduce the APK size and protect the code, and conduct sufficient tests to ensure the stability and performance of the application.