Suggest Migration to Declarative Plugin DSL in Android Gradle Build

阅读链接的 Flutter 迁移文档，然后检查 android/settings.gradle 和 android/app/build.gradle，以比较当前应用 legacy plugin 的方式与提议的声明式结构。完成标准是：在这些文件中，plugin management 和 plugins 块替代 legacy 的 buildscript 和 apply plugin 用法。

Feature Suggestion

Feature Description

I would like to suggest an update for the Android Gradle build configuration within the Firebase Quickstart Flutter project to utilize Gradle's declarative Plugin DSL, moving away from the legacy imperative apply script method. This suggestion aligns with the best practices recommended by Flutter from version 3.16 onwards and aims to enhance build configuration maintainability and facilitate easier future enhancements.

Why Is This Change Important?

1. Adherence to Best Practices: According to Flutter's official documentation, the recommended approach for applying Gradle plugins in Flutter projects is now through the declarative Plugin DSL. Adopting this method would ensure the project remains up-to-date with Flutter's best practices.
2. Improved Maintainability: By utilizing the Plugin DSL, the project's Gradle plugin management becomes cleaner and more straightforward, improving the overall maintainability of the build configuration.
3. Future-Proofing: Preparing the project for potential future updates that could leverage new Gradle features, possibly including the adoption of Kotlin for Gradle scripts.

Proposed Changes

The update would involve modifications to the android/settings.gradle and android/app/build.gradle files to define and apply plugins using the declarative syntax. The key adjustments include:

• Implementing the pluginManagement and plugins {} blocks in settings.gradle for managing plugin versions and applications.
• Eliminating the legacy buildscript blocks and replacing imperative apply plugin: commands with the declarative plugins {} block in app/build.gradle.