android – Dagger 2.2组件构建器模块方法已弃用

我开始使用匕首2.2,并且不建议使用“组件”构建器中的模块方法.

这是我的应用程序组件：

@Component(modules = ApplicationModule.class)
public interface ApplicationComponent {
    void inject(Application application);
}

和应用模块：

@Module
public class ApplicationModule {
    Application application;

    public ApplicationModule(Application application) {
        this.application = application;
    }

    @Provides
    @Singleton
    Application providesApplication() {
        return application;
    }
}

这是生成的类：

@Generated(
  value = "dagger.internal.codegen.ComponentProcessor",
  comments = "https://google.github.io/dagger"
)
public final class DaggerApplicationComponent implements ApplicationComponent {
  private DaggerApplicationComponent(Builder builder) {
    assert builder != null;
  }

  public static Builder builder() {
    return new Builder();
  }

  public static ApplicationComponent create() {
    return builder().build();
  }

  @Override
  public void inject(Application application) {
    MembersInjectors.<Application>noOp().injectMembers(application);
  }

  public static final class Builder {
    private Builder() {}

    public ApplicationComponent build() {
      return new DaggerApplicationComponent(this);
    }

    /**
     * @deprecated This module is declared, but an instance is not used in the component. This method is a no-op. For more, see https://google.github.io/dagger/unused-modules.
     */
    @Deprecated
    public Builder applicationModule(ApplicationModule applicationModule) {
      Preconditions.checkNotNull(applicationModule);
      return this;
    }
  }
}

如果不使用ComponentBuilder,如何初始化组件？

您应该阅读关于为什么不被弃用的说明.如果您正在使用像IntelliJ或Android Studio这样的IDE,您只需选择该方法并在Windows上点击Control Q即可阅读Javadoc,包括弃用通知.

Javadoc读取：

@deprecated This module is declared, but an instance is not used in the component. This method is a no-op. For more, see 07000.

从这个链接可以看到：

可以肯定地说,您可以忽略弃用.它旨在通知您未使用的方法和模块.一旦您在子图中实际需要/使用应用程序,就需要使用模块,弃用警告将会消失.