1. Start eclipse and create a good Android project.

2. Select the android project that needs to be packaged and signed, and right-click Android Tools- Export signed application package. ..

3. Enter the signature package management window, confirm the project name as the first step, and click Next.

4. Select a keystore (i.e. signature file), and you can use the defined keystore or create a new one;

The author will introduce the new keystore in detail in another experience, in which the defined signature file is used temporarily.

5. Select the keystore, first enter the storage directory, select the keystore file, enter the password, and enter the next step;

About password: eclipse adt comes with debug.keystore by default when installed, and the password is: android；;

If you use a custom signature file, you need to enter the corresponding defined password.

6. Select a key for encryption, and the password is the same as above;

7. Select the storage directory of APK, and then click Finish. Eclipse will customize the package. After the package is completed, the APK with the package signature will be found in the previously set storage directory.