AndroidAnnotations——Enhancing the Application class优化Application类

最新推荐文章于 2020-07-14 14:56:05 发布

翻译最新推荐文章于 2020-07-14 14:56:05 发布 · 1.2k 阅读

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通过使用@EApplication注解，可以优化Android Application类，并利用多种AA注解增强应用功能，如系统服务、数据存储及后台任务等。从AndroidAnnotations 2.1开始，还可以通过@App注解注入Application实例。

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Enhancing the Application class 优化Application类

Since AndroidAnnotations 2.4

You can enhance your Android Application class with the @EApplication annotation:

你可以使用 @EApplication 注解优化你的Android Application 类：

@EApplication
public class MyApplication extends Application {

}

You can then start using most AA annotations, except the ones related to views and extras:

然后你就可以使用大部分的AA注解，除了一些Views和extra相关的注解：

@EApplication
public class MyApplication extends Application {

  public void onCreate() {
    super.onCreate();
    initSomeStuff();
  }

  @SystemService
  NotificationManager notificationManager;

  @Bean
  MyEnhancedDatastore datastore;

  @RestService
  MyService myService;
 
  @Background
  void initSomeStuff() {
    // init some stuff in background
  }}

Injecting your application class注入你的Application类

Since AndroidAnnotations 2.1

You can inject the application class using the @App annotation:

你可以用 @App 注解注入你的Application类：

@EActivity
public class MyActivity extends Activity {

  @App
  MyApplication application;

}

It also works for any kind of annotated component, such as @EBean:

在任何其他注解组件中，比如 @EBean ，都可以使用：

@EBean
public class MyBean {

  @App
  MyApplication application;

}

Since AndroidAnnotations 3.0, the application class must be annotated with @EApplication.

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