从 Dagger2 迁移到 Hilt

Question

我正在尝试按照此处的 Hilt 迁移指南进行操作： https://dagger.dev/hilt/migration-guide.html

并用以下内容注释了我的所有模块：

@InstallIn(SingletonComponent::class)

然而，我运行对我的服务、片段和活动的“贡献者”模块存在问题。

我每个人都有一个模块，

@Module
@InstallIn(SingletonComponent::class)
abstract class FragmentContributorModule {
    @ContributesAndroidInjector
    internal abstract fun contributeMyFragment(): MyFragment
}

@Module
@InstallIn(SingletonComponent::class)
abstract class ActivityContributorModule {
    @ContributesAndroidInjector
    internal abstract fun contributeMyActivity(): MyActivity
}


@Module
@InstallIn(SingletonComponent::class)
abstract class ServiceContributorModule {
    @ContributesAndroidInjector
    internal abstract fun contributeMyService(): MyService
}

在编译期间，我收到了每个“贡献”函数的错误：

  com.test.ActivityContributorModule_ContributeMyActivity$defaultsDebug is missing an @InstallIn annotation. If this was intentional, see https://dagger.dev/hilt/compiler-options#disable-install-in-check for how to disable this check.

我也曾尝试对每个模块使用 ServiceComponent::class、FragmentComponent::class 和 ActivityComponent::class，但没有成功。我正在尝试分段迁移项目，所以我认为在所有内容都升级到 Hilt 之前我无法删除这些项目。

有什么想法吗？

Answer 1

答案在这里：

Warning: Modules that are not annotated with @InstallIn are not used by Hilt. Hilt by default raises an error when unannotated modules are found, but this error can be disabled.

起初我不是 100% 清楚，但我为 services/fragments/activities 提供的贡献者模块仅用于 Dagger，而不用于 Hilt。因此，如果您尝试分段迁移项目，您可以保留这些模块，直到您开始为 services/fragments/activities 提供 Hilt 入口点。但是，如果这样做，您将需要告诉 Hilt 忽略它因缺少 @InstallIn 而抛出的错误。

有关如何在此处禁用它的更多信息：

https://dagger.dev/hilt/compiler-options.html#disable-install-in-check

By default, Hilt checks @Module classes for the @InstallIn annotation and raises an error if it is missing. This is because if someone accidentally forgets to put @InstallIn on a module, it could be very hard to debug that Hilt isn’t picking it up.

This check can sometimes be overly broad though, especially if in the middle of a migration. To turn off this check, this flag can be used:

-Adagger.hilt.disableModulesHaveInstallInCheck=true.

Alternatively, the check can be disabled at the individual module level by annotating the module with @DisableInstallInCheck.

从 Dagger2 迁移到 Hilt

Migrating to Hilt from Dagger2

android

dagger-2

dagger-hilt