Question

我已经找到了如何设置RecyclerView.Adapter多个ViewHolders以便我想要做什么，但我无法弄清楚如何在一个{{{{}}中展示多个CardView布局1}}或Activity。 Fragment的布局始终显示数据库中检索的最后一组信息的onr。有没有办法在一个CardView中为CardView设置多个布局？

编辑：这是我的适配器

公共类TimeCardAdapter扩展了RecyclerView.Adapter {

Fragment

这是我希望用

填充每个

    private ArrayList<ChecksGetterSetter> checksList = new ArrayList<>();

    private static final int TYPE_CHECKS = 0;
    private static final int TYPE_CHECKINFO = 1;

    public class ViewHolder extends RecyclerView.ViewHolder {
        public ViewHolder(View itemView) {
            super(itemView);
        }
    }

    public class ChecksViewHolder extends ViewHolder {
        @InjectView(R.id.CCtextviewDate) TextView tvcPayPeriod;
        @InjectView(R.id.CCtextviewHoursInfo) TextView tvcHours;
        @InjectView(R.id.CCtextviewOvertimeHours) TextView cOTHours;
        @InjectView(R.id.CCtextviewOvertimeHoursInfo) TextView tvcOTHours;
        @InjectView(R.id.CCtextviewPayInfo) TextView tvcRate;
        @InjectView(R.id.CCtextviewOvertimePay) TextView cOTRate;
        @InjectView(R.id.CCtextviewOvertimePayInfo) TextView tvcOTRate;
        @InjectView(R.id.CCtextviewGrossPayInfo) TextView tvcGrossPay;
        @InjectView(R.id.CCtextviewAfterTaxInfo) TextView tvcAfterTax;

        public ChecksViewHolder(View itemView) {
            super(itemView);
            ButterKnife.inject(this, itemView);
        }
    }

    public class CheckInfoViewHolder extends ViewHolder {
        @InjectView(R.id.CCItextviewSocialSecurityInfo) TextView tvSocialSecurity;
        @InjectView(R.id.CCItextviewMedicareInfo) TextView tvMedicare;
        @InjectView(R.id.CCItextviewFederalIncomeTaxInfo) TextView tvFederalIncomeTax;
        @InjectView(R.id.CCItextviewAllowancesInfo) TextView tvAllowances;
        @InjectView(R.id.CCItextviewDeductions) TextView deductions;
        @InjectView(R.id.CCItextviewDeductionsInfo) TextView tvDeductions;

        public CheckInfoViewHolder(View itemView) {
            super(itemView);
            ButterKnife.inject(this, itemView);
        }
    }

    @Override
    public int getItemViewType(int position) {
        int viewType;
        if(checksList.get(position).getPeriodStart() != null){
            viewType = TYPE_CHECKS;
        } else {
            viewType = TYPE_CHECKINFO;
        }
        return viewType;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup viewGroup, int viewType) {
        LayoutInflater mInflater = LayoutInflater.from(viewGroup.getContext());
        switch (viewType) {
            case TYPE_CHECKS:
                ViewGroup vgChecks = (ViewGroup) mInflater.inflate(R.layout.cardview_checks, viewGroup, false);
                return new ChecksViewHolder(vgChecks);
            case TYPE_CHECKINFO:
                ViewGroup vgCheckInfo = (ViewGroup) mInflater.inflate(R.layout.cardview_check_info, viewGroup, false);
                return new CheckInfoViewHolder(vgCheckInfo);
            default:
                ViewGroup vgTimeCard1 = (ViewGroup) mInflater.inflate(R.layout.cardview_checks, viewGroup, false);
                return new ChecksViewHolder(vgTimeCard1);
        }
    }

    @Override
    public void onBindViewHolder(ViewHolder viewHolder, int position) {
        switch (viewHolder.getItemViewType()) {

            case TYPE_CHECKS:
                ChecksViewHolder holder = (ChecksViewHolder) viewHolder;
                ChecksGetterSetter pos = checksList.get(position);

                if (pos.getPeriodEnd().equals("") || pos.getPeriodEnd() == null) {
                    holder.tvcPayPeriod.setText(pos.getPeriodStart());
                } else {
                    holder.tvcPayPeriod.setText(pos.getPeriodStart() + " - " + pos.getPeriodEnd());
                }
                holder.tvcHours.setText(pos.getHours());
                if (!pos.getOtHours().equals("0.0")) {
                    holder.tvcOTHours.setText(pos.getOtHours());
                } else {
                    holder.cOTHours.setVisibility(View.GONE);
                    holder.tvcOTHours.setVisibility(View.GONE);
                }
                holder.tvcRate.setText(pos.getRate());
                if (!pos.getOtRate().equals("$0.00")) {
                    holder.tvcOTRate.setText(pos.getOtRate());
                } else {
                    holder.cOTRate.setVisibility(View.GONE);
                    holder.tvcOTRate.setVisibility(View.GONE);
                }
                holder.tvcGrossPay.setText(pos.getGrossPay());
                holder.tvcAfterTax.setText(pos.getAfterTax());
                break;

            case TYPE_CHECKINFO:
                CheckInfoViewHolder infoHolder = (CheckInfoViewHolder) viewHolder;
                ChecksGetterSetter posi = checksList.get(position);

                infoHolder.tvSocialSecurity.setText(posi.getSocialSecurity());
                infoHolder.tvMedicare.setText(posi.getMedicare());
                infoHolder.tvFederalIncomeTax.setText(posi.getFederalIncomeTax());
                infoHolder.tvAllowances.setText(posi.getAllowances());
                if (!posi.getDeductions().equals("$0.00")) {
                    infoHolder.tvDeductions.setText(posi.getDeductions());
                } else {
                    infoHolder.deductions.setVisibility(View.GONE);
                    infoHolder.tvDeductions.setVisibility(View.GONE);
                }
                break;
        }
    }

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

    public ChecksGetterSetter getItem(int position){
        return checksList.get(position);
    }

    public void addItem(ChecksGetterSetter check) {
        checksList.add(check);
        notifyItemInserted(checksList.size() - 1);
    }

    public void deleteItem(int index){
        checksList.remove(index);
        notifyItemRemoved(index);
    }

    public TimeCardAdapter(List<ChecksGetterSetter> check) {
        if(check == null){
            throw new IllegalArgumentException("check must not be null");
        }
        this.checksList = new ArrayList<>(check);
    }
}

的信息

ViewHolders

在private void getCheckInfo() { if (checkCursor.getCount() != 0) { while (checkCursor.moveToNext()) { hours = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.WORKED)); overtimeHours = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.OVERTIMEWORKED)); payrate = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.PAYRATE)); overtimePayrate = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.OVERTIMEPAYRATE)); beforeTax = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.BEFORETAXES)); afterTax = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.AFTERTAXES)); check = new ChecksGetterSetter( "", "", String.valueOf(decimalToTime(hours)), String.valueOf(decimalToTime(overtimeHours)), moneyFormat(payrate), moneyFormat(overtimePayrate), moneyFormat(beforeTax), moneyFormat(afterTax) ); adapter.addItem(check); } } } private void getAdditionalCheckInfo() { if (checkCursor.getCount() != 0) { while (checkCursor.moveToNext()) { socialSecurity = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.SOCIALSECURITY)); medicare = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.MEDICARE)); federalIncomeTax = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.FEDERALTAXES)); deductions = checkCursor.getDouble(checkCursor.getColumnIndex(ChecksDBAdapter.DEDUCTIONS)); allowances = checkCursor.getInt(checkCursor.getColumnIndex(ChecksDBAdapter.ALLOWANCES)); checkInfo = new ChecksGetterSetter( moneyFormat(socialSecurity), moneyFormat(medicare), moneyFormat(federalIncomeTax), moneyFormat(allowances), moneyFormat(deductions) ); adapter.addItem(checkInfo); } } }周期之后，它会填充getCheckInfo()就好了，但在ViewHolder个周期后，它会替换第一个的getAdditionalCheckInfo()和第二个{显示他们上方的空白卡片。我做错了什么？

Answer 1

您可以使用唯一的视图持有者，您只需要放置一个对象列表并填入onBindView，请参阅示例：

public class CustomAdapter extends RecyclerView.Adapter<MainSearchAdapter.ViewHolder> {

    private List<Object> data;

    public CustomAdapter(Lis<Object> data) {
        this.data = data;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View itemView = LayoutInflater.from(parent.getContext()).inflate(R.layout.card_layout, parent, false);

        return new ViewHolder(itemView);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        Object object = data.get(position);

        holder.textView.setText("bla");
    }

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

    public class ViewHolder extends RecyclerView.ViewHolder {
        public TextView textView;

        public ViewHolder(View itemView) {
           super(itemView);
           textView = (TextView) itemView.findViewById(R.id.text_view);
        }
   }

片段中的一个recyclerview中的多个cardview布局

1 个答案: