我想在 上顯示下面的布局RecyclerView。此布局根據商店數量而重復。假設我們有 2 家商店，那么用戶將看到兩種布局，具有不同的商店名稱。適配器類：public class DeliverySlotsAdapter extends RecyclerView.Adapter<DeliverySlotsAdapter.ViewHolder> { private Context context; LayoutInflater layoutInflater; List<Object> objects; private LayoutInflater inflater; private CallbackListener.SimpleCallback listener; public DeliverySlotsAdapter(Context context, List<Object> objects) { this.context = context; this.objects = objects; this.inflater = LayoutInflater.from(context); public void setListener(CallbackListener.SimpleCallback listener) { this.listener = listener; } @Override public ViewHolder onCreateViewHolder(final ViewGroup parent, final int viewType) { RecyclerView.ViewHolder viewHolder; View view= inflater.inflate(R.layout.item_checkout_delivery_slots, parent, false); return new ViewHolder(view); } @Override public void onBindViewHolder(final ViewHolder holder, final int position) { holder.bind(objects.get(position)); } @Override public int getItemCount() { return objects.size() != 0 ? objects.size() : 0; } class ViewHolder extends RecyclerView.ViewHolder {// @BindView(R.id.rlSchedule)// RelativeLayout rlSchedule; @BindView(R.id.tvDeliveryScheduleLabel) TextView tvDeliveryScheduleLabel;// @BindView(R.id.tvDeliverySchedule)// TextView tvDeliverySchedule; public ViewHolder(View itemView) { super(itemView); itemView.setOnClickListener(v -> { if (listener!=null && getAdapterPosition() != RecyclerView.NO_POSITION) { listener.onItemClick(objects.get(getAdapterPosition())); } }); }
2 回答
神不在的星期二
TA貢獻1963條經驗 獲得超6個贊
在您的 ViewHolder 類中添加以下內容進行這些更改 -
public ViewHolder(View itemView) {
super(itemView);
ButterKnife.bind(this, view); // To bind view with ButterKnife
itemView.setOnClickListener(v -> {
if (listener != null && getAdapterPosition() != RecyclerView.NO_POSITION) {
listener.onItemClick(objects.get(getAdapterPosition()));
}
});
}
揚帆大魚
TA貢獻1799條經驗 獲得超9個贊
我認為你的適配器沒問題。但是，在該getItemCount函數中您需要檢查null. 我按如下方式修改了適配器，并讓我知道這是否有效。
public class DeliverySlotsAdapter extends RecyclerView.Adapter<DeliverySlotsAdapter.ViewHolder> {
private Context context;
LayoutInflater layoutInflater;
List<Object> objects;
private LayoutInflater inflater;
private CallbackListener.SimpleCallback listener;
public DeliverySlotsAdapter(Context context, List<Object> objects) {
this.context = context;
this.objects = objects;
this.inflater = LayoutInflater.from(context);
}
public void setListener(CallbackListener.SimpleCallback listener) {
this.listener = listener;
}
@Override
public ViewHolder onCreateViewHolder(final ViewGroup parent, final int viewType) {
RecyclerView.ViewHolder viewHolder;
View view = inflater.inflate(R.layout.item_checkout_delivery_slots, parent, false);
return new ViewHolder(view);
}
@Override
public void onBindViewHolder(final ViewHolder holder, final int position) {
holder.bind(objects.get(position));
}
@Override
public int getItemCount() {
return objects != null && objects.size() > 0 ? objects.size() : 0;
}
class ViewHolder extends RecyclerView.ViewHolder {
@BindView(R.id.tvDeliveryScheduleLabel)
TextView tvDeliveryScheduleLabel;
public ViewHolder(View itemView) {
super(itemView);
itemView.setOnClickListener(v -> {
if (listener != null && getAdapterPosition() != RecyclerView.NO_POSITION) {
listener.onItemClick(objects.get(getAdapterPosition()));
}
});
}
public void bind(Object object) {
DeliverySlotItem deliverySlotItem = (DeliverySlotItem) object;
tvDeliveryScheduleLabel.setText(deliverySlotItem.shop_name + " Delivery");
}
}
}
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