在Android App Bundle的gradle中，设置和处理版本更新时的握手逻辑。

下面是代码示例：

在build.gradle文件中添加以下代码：

android {

  // Other configuration settings...

  bundle {
      language {
          enableSplit = true
      }
      density {
          enableSplit = true
      }
      abi {
          enableSplit = true
      }
  }

  // Other configuration settings...
}

在应用程序类中，添加一个名为“initApplication”的方法，该方法处理App Bundle的定期更新和握手逻辑。代码示例：

public class MyApp extends Application {

    private static final String TAG = MyApp.class.getSimpleName();

    public void initApplication() {
        Log.d(TAG, "initApplication()");

        // Insert your update logic here.

        // Insert your handshake logic here.

        // Verify if an update is already in progress
        if (AppUpdateManagerFactory.create(this).getAppUpdateInfo().isUpdateTypeAllowed(AppUpdateType.IMMEDIATE)) {
            // Start an immediate update
            AppUpdateManagerFactory.create(this).startUpdateFlowForResult(
                    AppUpdateInfo.newBuilder(BuildConfig.VERSION_CODE).build(),
                    AppUpdateType.IMMEDIATE,
                    this,
                    AppRequestCode.APP_UPDATE
            );
        }

        // Insert your other initialization code here.
    }

    @Override
    public void onCreate() {
        super.onCreate();
        initApplication();
    }
}