Dagger 2不会注入我的对象，但可以从组件获得 [英] Dagger 2 does not inject my Object but can be obtained from component

问题描述

我有我的组件

@GithubListActivityScope
@Component(modules = { GithubListActivityModule.class,GlideActivityModule.class })
public interface GithubListActivityComponent {

GithubUserListAdapter githubUserListAdapter ( );
RequestManager requestManager();
LinearLayoutManager linearLayoutManager();

}

我有一个像这样的模块：

And I have a module like this :

@Module
public class GithubListActivityModule {
private final Activity githubListActivity;


public GithubListActivityModule ( Activity activity ) {
    this.githubListActivity = activity;

}

@Provides
@GithubListActivityScope
Activity activity ( ) {
    return this.githubListActivity;
}

@Provides
@GithubListActivityScope
public LinearLayoutManager linearLayoutManager(Activity activity){
    return  new LinearLayoutManager ( activity );
}
}

问题：
我有注入的恐惧感像这样的LinearLayout管理器：

Problem : I have treid to inject LinearLayout manager like this :

@GithubListActivityScope
@Inject
LinearLayoutManager linearLayoutManager;  

虽然我的组件的构建方式如下：

While my Component is built like this :

githubListActivityComponent = DaggerGithubListActivityComponent.builder ()
            .githubListActivityModule ( new GithubListActivityModule ( this ) )
            .build ();

我的线性布局管理器未实例化。但是当我手动执行

my Linear Layout manager does not get instantiated. But when I manually do

 linearLayoutManager = githubListActivityComponent.linearLayoutManager ();

工作正常。我在哪里错了？

It works fine. Where am I going wrong?

推荐答案

我通过的每个地方活动 ，我应该完全传递 相同的 类名（而不是其父类），所以一旦编辑了每个参数并返回了活动 放入 GithubListActivity ，然后添加

Everywhere that I am passing Activity , I should pass exactly the same class Name (not its parent) So once edited every parameters and return types that were "Activity" into "GithubListActivity" and then added

void inject( GithubListActivity activity);

在组件类

然后注入 GithubListActivity
就像这样：

then injected "GithubListActivity" like this :

DaggerGithubListActivityComponent.builder ()
            .githubListActivityModule ( new GithubListActivityModule ( this ) )
            .build ().inject ( this );

然后代码对我有用..

Then the codes worked for me ..

课程：

1.定义注入方法并注入当前活动

2。使用完全相同类型的对象（而不是父对象），在这种情况下，请使用 GithubListActivity而不是仅使用活动。

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