[移动开发]Dagger2写一个简单的RecyclerViewAdapter

Adapter并没有什么不一样的，就按照普通的写就可以了，这里贴出来主要是做个参考，可以自由发挥。
public class ARecyclerViewAdapter extends RecyclerView.Adapter<ARecyclerViewAdapter.AViewHolder> {

    private List<Object> list;
    private Context context;
    private LayoutInflater inflater;

    public void setList(List<Object> list) {
        this.list = list;
        notifyDataSetChanged();
    }

    public ARecyclerViewAdapter(Context context, List<Object> list) {
        this.context = context;
        this.list = list;
        inflater = LayoutInflater.from(context);
    }

    @NonNull
    @Override
    public AViewHolder onCreateViewHolder(@NonNull ViewGroup parent, int viewType) {
        View view = inflater.inflate(R.layout.activity_main, parent, false);
        return new AViewHolder(view);
    }

    @Override
    public void onBindViewHolder(@NonNull AViewHolder holder, int position) {
        //不启用ViewHolder复用
        holder.setIsRecyclable(false);
    }

    @Override
    public int getItemCount() {
        return list.size();
    }

    class AViewHolder extends RecyclerView.ViewHolder{

        public AViewHolder(@NonNull View itemView) {
            super(itemView);

        }
    }

}

这里开始是创建Mudule

@Module
public class AdapterMudule {

????// 申明用到的参数
    public List<Object> list;
    public Context context;

    public AdapterMudule(Context context, List<Object> list) {
        this.context = context;
        this.list = list;
    }

????// 标记和创建返回
    @Provides
    public Context provideContext() {
        return context;
    }

????// 标记和创建返回
    @Provides
    public List<Object> provideList() {
        return list;
    }

????// 可以不使用@Named这个标记，这里是为了学习命名使用
    @Named("adapter")
    @Provides
    public ARecyclerViewAdapter provideAdapter(Context context, List<Object> list){
        return new ARecyclerViewAdapter(context, list);
    }

}

创建Component指向一个具体的Activity

@Component(modules = AdapterMudule.class)
public interface AdapterComponent {
    void inject(MainActivity activity);
}

在这里写完之后，一定不要忘记Rebuild哟，不然不能生成代码，就不能在Main里使用了

Activity使用Adapter

public class MainActivity extends AppCompatActivity {

????// 可以不使用@Named这个标记，这里是为了学习命名使用
    @Named("adapter")
    @Inject
    ARecyclerViewAdapter adapter;

????private RecyclerView recyclerView;
    private List<Object> list = new ArrayList<>();

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

//        recyclerView = findViewById(R.id.recyclerView);

        for (int i = 0; i < 10; i++) {
            list.add("item" + i);
        }
        DaggeradapterComponent.builder().adapterMudule(new AdapterMudule(this, list)).build().inject(this);
        Log.e("------------->", adapter.getItemCount() + "");

????????recyclerView.setLayoutManager(new GridLayoutManager(this, 1)); ????????recyclerView.setAdapter(adapter);
    }

}