匕首：上类没有注射的成员多次注射

Question

我正在试图注入2个模块到一个类时的错误消息：

Error:(18, 8) error: No injectable members on ...SQLiteHandler. 
Do you want to add an injectable constructor? required by ...activity.AuthenticatorActivity 
for ...ServerHandlerModule 


Error:(18, 8) error: No injectable members on ...ServerHandler. 
Do you want to add an injectable constructor? required by ....activity.AuthenticatorActivity 
for ...Modules.SQLiteHandlerModule 

我无法理解此错误消息作为两个模块别t似乎彼此有任何关系。在我添加ServerHandlerModule之前，注入工作正常，但当它们都被注入时，它们似乎互相干扰。

SQLiteHandlerModule：

@Module(injects = {AuthenticatorActivity.class, MainActivity.class}) 
public class SQLiteHandlerModule { 

private final Context context; 

public SQLiteHandlerModule(Context context) { 
    this.context = context; 
} 

@Provides 
@Singleton 
SQLiteHandler providesSQLiteHandler(@ForApplication Context context) { 
    return new SQLiteHandler(context); 
} 

@Provides 
@Singleton 
@ForApplication 
Context provideApplicationContext() { 
    return context; 
} 
} 

ServerHandlerModule：

@Module(injects = {AuthenticatorActivity.class}) 
public class ServerHandlerModule { 

public ServerHandlerModule() {} 

@Provides 
@Singleton 
ServerHandler providesServerHandler() { 
    return new ServerHandler(); 
} 

}

AuthenticatorActivity：

​​

有谁知道我需要添加到解决THI问题？

Answer 1

Dagger需要对要注入的类的构造函数进行注释。

@Inject 
public SQLiteHandler(@ForApplication Context context) { 
    super(context, DATABASE_NAME, null, DATABASE_VERSION); 
    this.context = context; 
} 

@Inject 
public ServerHandler() { 
}