Android 同步滚动不同宽度的RecyclerViews

我有一个应用程序，存储一些到期日期，并在main活动中显示它们

我正在努力完成第一张图片上的内容，但我还没有完成

到目前为止，我得到的是：

我的问题：

• 单击右键或左键时，如何剪辑第一个RecyclerView？（解决此问题后，我将制作更改背景颜色和粗体文本的动画）
• 单击时如何同步两个RecyclerViews以更改到所需位置

这就是我尝试过的：

这些工作或多或少，在第一个环节我设法得到了这个职位，但不知道该如何处理这个职位；在第二个链接上，它确实同步，但我需要在单击时滚动到位置旁注：I用户PagerSnapHelper在两个RecyclerViews上

如果您需要任何其他活动或有任何反馈，请发表评论

主页

public class Home extends BaseActivity {

private DBHelper mDBHelper;
private Context mContext;
private RecyclerView mRecyclerViewDetails, mRecyclerViewSymbols;
private HomeDetailsAdapter mDetailsAdapter;
private HomeSymbolsAdapter mSymbolsAdapter;
private LinearLayoutManager mLinearLayoutManager;
private LinearLayoutPagerManager mLinearLayoutPagerManager;

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

    mDBHelper = new DBHelper(getApplicationContext());
    mRecyclerViewDetails = (RecyclerView) findViewById(R.id.recycler_view_details);
    mRecyclerViewSymbols = (RecyclerView) findViewById(R.id.recycler_view_symbols);

    mSymbolsAdapter = new HomeSymbolsAdapter(mContext, mDBHelper.getAllDates(), new HomeSymbolsAdapter.clickCallback() {
        @Override
        public void onItemClick(int position) {
            mRecyclerViewSymbols.scrollToPosition(position);
            Log.d("Home", String.valueOf(position));
        }
    });

    mRecyclerViewSymbols.setAdapter(mSymbolsAdapter);
    mLinearLayoutPagerManager = new LinearLayoutPagerManager(mContext, LinearLayoutManager.HORIZONTAL, false, 3);
    mRecyclerViewSymbols.setLayoutManager(mLinearLayoutPagerManager);
    mRecyclerViewSymbols.getLayoutManager().scrollToPosition(Integer.MAX_VALUE / 2);

    mDetailsAdapter = new HomeDetailsAdapter(mContext, mDBHelper.getAllDates());

    mRecyclerViewDetails.setAdapter(mDetailsAdapter);
    mLinearLayoutManager = new LinearLayoutManager(mContext, LinearLayoutManager.HORIZONTAL, false);
    mRecyclerViewDetails.setLayoutManager(mLinearLayoutManager);
    mRecyclerViewDetails.getLayoutManager().scrollToPosition(Integer.MAX_VALUE / 2);

    PagerSnapHelper snapHelper = new PagerSnapHelper();
    snapHelper.attachToRecyclerView(mRecyclerViewDetails);
    PagerSnapHelper snapHelper2 = new PagerSnapHelper();
    snapHelper2.attachToRecyclerView(mRecyclerViewSymbols);

}

家庭符号适配器

public class HomeSymbolsAdapter extends RecyclerView.Adapter<HomeSymbolsAdapter.ViewHolder> {

private Context mContext;
private DBHelper mDBHelper;
private ArrayList<Date> mDatesList;
private clickCallback mClickCallback;
private final static int ITEMS_PER_PAGE = 3;

public HomeSymbolsAdapter(Context context, ArrayList<Date> datesList, clickCallback clickCallback) {
    mContext = context;
    mDatesList = datesList;
    mClickCallback = clickCallback;
}

public interface clickCallback{
    void onItemClick(int position);
}

@Override
public HomeSymbolsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.format_home_symbols, parent, false));
}

@Override
public void onBindViewHolder(HomeSymbolsAdapter.ViewHolder holder, int position) {
    int positionInList = position % mDatesList.size();
    Date date = mDatesList.get(positionInList);
    holder.mSymbol.setText(date.getSymbol());

}

@Override
public int getItemCount() {
    return Integer.MAX_VALUE;
}

public class ViewHolder extends RecyclerView.ViewHolder {

    public TextView mSymbol;

    public ViewHolder(View view) {
        super(view);

        mSymbol = (TextView) view.findViewById(R.id.symbols_tv);
        view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mClickCallback.onItemClick(getAdapterPosition());
            }
        });

    }
}

public class HomeDetailsAdapter extends RecyclerView.Adapter<HomeDetailsAdapter.ViewHolder> {

private Context mContext;
private ArrayList<Date> mDates;

public HomeDetailsAdapter(Context context, ArrayList<Date> dates) {
    mContext = context;
    mDates = dates;
}

@Override
public HomeDetailsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.format_home, parent, false));
}

@Override
public void onBindViewHolder(HomeDetailsAdapter.ViewHolder holder, int position) {
    int positionInList = position % mDates.size();
    Date date = mDates.get(positionInList);
    holder.mName.setText(date.getName());
    holder.mDaysLeft.setText("125");
    holder.mDays.setText(R.string.days);
    holder.mDate.setText(date.getDate());
}

@Override
public int getItemCount() {
    return Integer.MAX_VALUE;
}

public class ViewHolder extends RecyclerView.ViewHolder{

    public TextView mName, mDaysLeft, mDays, mDate;

    public ViewHolder(View view) {
        super(view);

        mName = (TextView) view.findViewById(R.id.format_home_name);
        mDaysLeft = (TextView) view.findViewById(R.id.format_home_days_left);
        mDays = (TextView) view.findViewById(R.id.format_home_days);
        mDate = (TextView) view.findViewById(R.id.format_home_date);
    }
}

公共类HomeSymbolsAdapter扩展了RecyclerView.Adapter{
私有上下文；
私人助理医生；
私有ArrayList mDatesList；
私有clickCallback mClickCallback；
私人最终静态整数项每页=3；
公共HomeSymbolsAdapter（上下文上下文、ArrayList日期列表、clickCallback clickCallback）{
mContext=上下文；
mDatesList=日期列表；
mClickCallback=单击回调；
}
公共接口clickCallback{
无效单击（内部位置）；
}
@凌驾
public HomeSymbolsAdapter.ViewHolder onCreateViewHolder（视图组父级，int-viewType）{
返回新的ViewHolder（LayoutInflater.from（parent.getContext（））。充气（R.layout.format_home_symbols，parent，false））；
}
@凌驾
BindViewHolder上的公共无效（HomeSymbolsAdapter.ViewHolder，int位置）{
int positionInList=位置%mDatesList.size（）；
Date-Date=mDatesList.get（位置列表）；
holder.mSymbol.setText（date.getSymbol（））；
}
@凌驾
public int getItemCount（）{
返回Integer.MAX_值；
}
公共类ViewHolder扩展了RecyclerView.ViewHolder{
公共文本视图mSymbol；
公共视图持有者（视图）{
超级（视图）；
mSymbol=（TextView）view.findviewbyd（R.id.symbols\u tv）；
view.setOnClickListener（新的view.OnClickListener（）{
@凌驾
公共void onClick（视图v）{
mClickCallback.onItemClick（getAdapterPosition（））；
}
});
}
}

HomeDetailsAdapter

public class HomeSymbolsAdapter extends RecyclerView.Adapter<HomeSymbolsAdapter.ViewHolder> {

private Context mContext;
private DBHelper mDBHelper;
private ArrayList<Date> mDatesList;
private clickCallback mClickCallback;
private final static int ITEMS_PER_PAGE = 3;

public HomeSymbolsAdapter(Context context, ArrayList<Date> datesList, clickCallback clickCallback) {
    mContext = context;
    mDatesList = datesList;
    mClickCallback = clickCallback;
}

public interface clickCallback{
    void onItemClick(int position);
}

@Override
public HomeSymbolsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.format_home_symbols, parent, false));
}

@Override
public void onBindViewHolder(HomeSymbolsAdapter.ViewHolder holder, int position) {
    int positionInList = position % mDatesList.size();
    Date date = mDatesList.get(positionInList);
    holder.mSymbol.setText(date.getSymbol());

}

@Override
public int getItemCount() {
    return Integer.MAX_VALUE;
}

public class ViewHolder extends RecyclerView.ViewHolder {

    public TextView mSymbol;

    public ViewHolder(View view) {
        super(view);

        mSymbol = (TextView) view.findViewById(R.id.symbols_tv);
        view.setOnClickListener(new View.OnClickListener() {
            @Override
            public void onClick(View v) {
                mClickCallback.onItemClick(getAdapterPosition());
            }
        });

    }
}

public class HomeDetailsAdapter extends RecyclerView.Adapter<HomeDetailsAdapter.ViewHolder> {

private Context mContext;
private ArrayList<Date> mDates;

public HomeDetailsAdapter(Context context, ArrayList<Date> dates) {
    mContext = context;
    mDates = dates;
}

@Override
public HomeDetailsAdapter.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
    return new ViewHolder(LayoutInflater.from(parent.getContext()).inflate(R.layout.format_home, parent, false));
}

@Override
public void onBindViewHolder(HomeDetailsAdapter.ViewHolder holder, int position) {
    int positionInList = position % mDates.size();
    Date date = mDates.get(positionInList);
    holder.mName.setText(date.getName());
    holder.mDaysLeft.setText("125");
    holder.mDays.setText(R.string.days);
    holder.mDate.setText(date.getDate());
}

@Override
public int getItemCount() {
    return Integer.MAX_VALUE;
}

public class ViewHolder extends RecyclerView.ViewHolder{

    public TextView mName, mDaysLeft, mDays, mDate;

    public ViewHolder(View view) {
        super(view);

        mName = (TextView) view.findViewById(R.id.format_home_name);
        mDaysLeft = (TextView) view.findViewById(R.id.format_home_days_left);
        mDays = (TextView) view.findViewById(R.id.format_home_days);
        mDate = (TextView) view.findViewById(R.id.format_home_date);
    }
}

公共类HomeDetailsAdapter扩展了RecyclerView.Adapter{
私有上下文；
私人ArrayList mDates；
公共HomeDetailsAdapter（上下文、数组列表日期）{
mContext=上下文；
日期=日期；
}
@凌驾
public HomeDetailsAdapter.ViewHolder onCreateViewHolder（视图组父级，int-viewType）{
返回新的ViewHolder（LayoutInflater.from（parent.getContext（））.flate（R.layout.format_home，parent，false））；
}
@凌驾
BindViewHolder上的公共无效（HomeDetailsAdapter.ViewHolder，int位置）{
int positionInList=位置%mDates.size（）；
日期=mDates.get（位置列表）；
holder.mName.setText（date.getName（））；
持有人.mDaysLeft.setText（“125”）；
holder.mDays.setText（R.string.days）；
holder.mDate.setText（date.getDate（））；
}
@凌驾
public int getItemCount（）{
返回Integer.MAX_值；
}
公共类ViewHolder扩展了RecyclerView.ViewHolder{
公共文本视图mName、mDaysLeft、mDays、mDate；
公共视图持有者（视图）{
超级（视图）；
mName=（TextView）view.findViewById（R.id.format\u home\u name）；
mDaysLeft=（TextView）view.findViewById（R.id.format\u home\u days\u left）；
mDays=（TextView）view.findViewById（R.id.format\u home\u days）；
mDate=（TextView）view.findViewById（R.id.format\u home\u date）；
}
}