矽谷商城4--顯示購物車商品

1_購物車頁面和標題欄的設置

govaffair_pager.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"
    android:layout_width="match_parent"
    android:layout_height="match_parent"
    android:orientation="vertical">

    <android.support.v7.widget.RecyclerView
        android:id="@+id/recyclerView"
        android:layout_width="match_parent"
        android:layout_height="0dp"
        android:layout_weight="1" />

    <RelativeLayout
        android:layout_width="match_parent"
        android:layout_height="wrap_content"
        android:background="#802f4f4f"
        android:gravity="center_vertical">

        <CheckBox
            android:id="@+id/checkbox_all"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentLeft="true"
            android:layout_centerVertical="true"
            android:button="@drawable/selector_checkbox"
            android:checked="true"
            android:text="全選"
            android:textColor="#88ffffff" />

        <TextView
            android:id="@+id/tv_total_price"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_centerVertical="true"
            android:layout_marginLeft="10dp"
            android:layout_toRightOf="@id/checkbox_all"
            android:text="合計 ￥40 "
            android:textColor="#88ffffff"
            android:textSize="28sp" />

        <Button
            android:id="@+id/btn_order"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginBottom="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/btn_bg_selector"
            android:padding="8dp"
            android:text="去結算"
            android:textColor="@android:color/white" />

        <Button
            android:id="@+id/btn_delete"
            android:layout_width="wrap_content"
            android:layout_height="wrap_content"
            android:layout_alignParentRight="true"
            android:layout_centerVertical="true"
            android:layout_marginBottom="5dp"
            android:layout_marginRight="5dp"
            android:layout_marginTop="5dp"
            android:background="@drawable/btn_bg_selector"
            android:padding="10dp"
            android:text="刪除"
            android:textColor="@android:color/white"
            android:visibility="gone" />

    </RelativeLayout>

</LinearLayout>

2_設置適配器

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

    private final Context context;
    private final List<ShopingCart> datas;

    public GovaffairPagerAdapter(Context context, List<ShopingCart> datas) {
        this.context = context;
        this.datas = datas;
    }

    @Override
    public ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {
        View view = View.inflate(context, R.layout.item_govaffairpager, null);
        return new ViewHolder(view);
    }

    @Override
    public void onBindViewHolder(ViewHolder holder, int position) {
        ShoppingCart wares = datas.get(position);
        //載入圖片
        Glide.with(context).load(wares.getImgUrl()).
                placeholder(R.drawable.news_pic_default).
                error(R.drawable.news_pic_default)
                .diskCacheStrategy(DiskCacheStrategy.ALL)
                .into(holder.iv_icon);
        holder.checkbox.setChecked(cart.isChecked());
        holder.tv_name.setText(wares.getName());
        holder.tv_price.setText("￥ "+wares.getPrice());
        holder.numberAddSubView.setValue(wares.getCount());
    }

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

    class ViewHolder extends RecyclerView.ViewHolder {

        private CheckBox checkbox;
        private ImageView iv_icon;
        private TextView tv_name;
        private TextView tv_price;
        private NumberAddSubView numberAddSubView;

        public ViewHolder(View itemView) {
            super(itemView);
            checkbox = (CheckBox) itemView.findViewById(R.id.checkbox);
            iv_icon = (ImageView) itemView.findViewById(R.id.iv_icon);
            tv_name = (TextView) itemView.findViewById(R.id.tv_name);
            tv_price = (TextView) itemView.findViewById(R.id.tv_price);
            numberAddSubView = (NumberAddSubView) itemView.findViewById(R.id.numberAddSubView);
        }
    }
}