Question

我正在开发一个具有导航抽屉的应用程序，该应用程序调用RecyclerView.Adapter。 RecyclerView.Adapter具有日程表列表。我在RecyclerView中有页脚，该页脚使用户可以创建新时间表。

public class MainActivity extends AppCompatActivity {
        private DrawerLayout mDrawerLayout;

        protected void onCreate(Bundle savedInstanceState) {
        …
        }

public void selectItemDrawer(MenuItem menuItem){

    Fragment myFragment = null;
    Class fragmentClass;

    switch (menuItem.getItemId()) {
        case R.id.menu_home:
            fragmentClass = dashboardFragment.class;
            break;
        case R.id.menu_plans:
            fragmentClass = ScheduleListFragment.class;
            break;
        default:
            fragmentClass = dashboardFragment.class;
        }
        try {
         myFragment = (Fragment) fragmentClass.newInstance();
        }
        catch (Exception e) {
          e.printStackTrace();
        }
        FragmentManager fragmentManager = getSupportFragmentManager();
        fragmentManager.beginTransaction().replace(R.id.flContent,myFragment).commit();
        menuItem.setCheckable(true);
        setTitle(menuItem.getTitle());
        mDrawerLayout.closeDrawers();
     }
    }

适配器类

public class MyRecyclerAdapter extends Adapter<RecyclerAdapter.ViewHolder> {

     private ArrayList<ScheduleModel> activeSchedules;
     private ShowScheduleListener mListener;

     public MyRecyclerAdapter(Context ctx, ShowScheduleListener listener){

        mListener = listener;
        ...
     }

     @Override
     public void onBindViewHolder(ViewHolder holder, int position) {
         holder.itemView.setOnClickListener(new OnClickListener(){
             @Override
             public void onClick(View v) {
                  mListener.onItemClicked(mItems[position]);
             }
         });
     }

     interface ShowScheduleListener{
         void onItemClicked(ItemType item);
     }

 }
}

RecyclerView片段

public class ScheduleList extends Fragment implements MyRecyclerAdapter.ShowScheduleListener {

    View v;
    private RecyclerView scheduleRecyclerView;
    private ArrayList<ScheduleModel> activeSchedules;
    private DatabaseHandler databaseHandler;

    public ScheduleList() {
    }

    @Nullable
    @Override
    public View onCreateView(@NonNull LayoutInflater inflater, @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) {

        v = inflater.inflate(R.layout.fragment_schedule_list,container,false);
        scheduleRecyclerView=v.findViewById(R.id.RecyclerView_schedule_list);
        scheduleRecyclerView.setLayoutManager(new LinearLayoutManager(getContext()));

        activeSchedules = new ArrayList<>();
        databaseHandler=DatabaseHandler.getInstance(getContext());
        activeSchedules=databaseHandler.getActiveSchedules();

        return v;

    }
    @Override
    public void onViewCreated(@NonNull View view, @Nullable Bundle savedInstanceState) {
        super.onViewCreated(view, savedInstanceState);

        MyRecyclerAdapter myRecyclerAdapter = new MyRecyclerAdapter (getContext(), activeSchedules);
        scheduleRecyclerView.setLayoutManager(new LinearLayoutManager(getActivity()));
        scheduleRecyclerView.setAdapter(myRecyclerAdapter);

    }
    @Override
    public void onScheduleItemClick(int position) {
          // as per other posts I am supposed to initiate Fragment here
          // but should fragment talk to another fragment via interface implemented this way?
    }

我有2个问题

实现导航抽屉->使用RecycleView片段显示现有计划是否是一个好的架构->使用片段显示所选计划详细信息的片段？
如何将信息传递到RecycleView的片段？我知道片段之间的通信可以使用接口来实现，但想检查是否有其他方法可以实现RecycleView和Fragment之间的通信？

Answer 1

实现导航抽屉->片段以使用RecycleView显示现有时间表是否是一个好的体系结构->片段以显示选定的时间表详细信息？

这就是android上默认日历应用程序的工作方式。所以，是的，这是一个好的架构。默认的日历应用程序具有一个导航抽屉。单击抽屉的“时间表”项，将打开带有事件列表的时间表片段。单击事件之一会打开该特定事件的详细信息屏幕。

如何将信息传递到RecycleView的片段？我知道片段之间的通信可以使用接口来实现，但想检查是否有其他方法来实现RecycleView和Fragment之间的通信？

使用捆绑包：How to transfer some data to another Fragment?

带有recyclerview片段的导航抽屉调用了另一个碎片

1 个答案: