[英]How to inject a LifecycleOwner in Android using Dagger2?
I happen to have an Android lifecycle aware component with the following interface: 我碰巧有一个具有以下界面的Android生命周期感知组件:
class MyLifecycleAwareComponent @Inject constructor(
private val: DependencyOne,
private val: DependencyTwo
) {
fun bindToLifecycleOwner(lifecycleOwner: LifecycleOwner) {
...
}
...
}
All Dagger specific components and modules are configured correctly and have been working great so far. 所有Dagger特定组件和模块均已正确配置,并且到目前为止运行良好。
In each activity when I need to use the component I do the following: 在每个活动中,当我需要使用组件时,请执行以下操作:
class MyActivity: AppCompatActivity() {
@Inject
lateinit var component: MyLifecycleAwareComponent
override fun onCreate(savedInstanceState: Bundle?) {
super.onCreate(savedInstanceState)
component.bindToLifecycleOwner(this)
...
}
}
Now I want to get rid of bindLifecycleOwner
and denote my component like this: 现在,我想摆脱
bindLifecycleOwner
并像这样表示我的组件:
class MyLifecycleAwareComponent @Inject constructor(
private val: DependencyOne,
private val: DependencyTwo,
private val: LifecycleOwner
) {
...
}
And provide the lifecycleOwner
within the scope of individual activities (which implement the interface by extending AppCompatActivity
). 并在各个活动(通过扩展
AppCompatActivity
实现接口)的范围内提供lifecycleOwner
。
Is there any way to do it with Dagger? 有什么办法可以用匕首做到吗?
You may bind your Activity to LifecycleOwner from your ActivityModule: 您可以从ActivityModule将Activity绑定到LifecycleOwner:
@Module
abstract class ActivityModule {
...
@Binds
@ActivityScope
abstract fun bindLifecycleOwner(activity: AppCompatActivity): LifecycleOwner
...
}
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