ListView布局包括checkbox(复选框)、img、title（商品名称）、type（分类）、两个Button（加减）、三个textview（原价，单价，数量），imgDelete（delete）
这里写图片描述
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="90dp"
android:background="@color/white"
android:gravity="center_vertical"
android:orientation="horizontal">
<!-- 小对勾的布局 -->
<CheckBox
android:id="@+id/shopping_lv_checkbox"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginLeft="@dimen/dp_10"
android:focusable="false"
android:focusableInTouchMode="false" />
<!-- 图片布局 -->
<ImageView
android:id="@+id/shopping_lv_img"
android:layout_width="64dp"
android:layout_height="64dp"
android:layout_margin="10dp"
android:scaleType="centerCrop"
android:src="@mipmap/tuceng1" />
<!-- 商品名称和价格的布局 -->
<LinearLayout
android:layout_width="fill_parent"
android:layout_height="wrap_content"
android:orientation="vertical">
<!-- 商品名称的布局 -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_marginTop="@dimen/dp_5"
android:gravity="center_vertical">
<TextView
android:id="@+id/shopping_lv_title"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:text="连衣裙女夏季"
android:textSize="@dimen/sp_14" />
<TextView
android:id="@+id/shopping_lv_moneyDel"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignParentTop="true"
android:layout_marginEnd="20dp"
android:text="1111"
android:textSize="@dimen/sp_14" />
</RelativeLayout>
<!-- 价格的布局 -->
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="30dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<TextView
android:id="@+id/shopping_lv_content"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_marginTop="10dp"
android:text="500g"
android:textSize="12sp" />
<TextView
android:id="@+id/shopping_lv_money"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_alignTop="@+id/shopping_lv_content"
android:layout_gravity="bottom"
android:layout_marginEnd="20dp"
android:text="￥66"
android:textColor="@color/balance_bg"
android:textSize="16sp" />
</RelativeLayout>
<RelativeLayout
android:layout_width="match_parent"
android:layout_height="33dp"
android:gravity="center_vertical"
android:orientation="horizontal">
<!-- 加号 -->
<ImageView
android:id="@+id/shopping_lv_sub"
android:layout_width="30dp"
android:layout_height="30dp"
android:background="@drawable/add_button_shape"
android:src="@mipmap/icon_minus_3x" />
<TextView
android:id="@+id/shopping_lv_number"
android:layout_width="30dp"
android:layout_height="wrap_content"
android:layout_centerVertical="true"
android:layout_marginLeft="@dimen/dp_10"
android:layout_marginStart="10dp"
android:layout_toEndOf="@+id/shopping_lv_sub"
android:gravity="center"
android:inputType=""
android:text="1"
android:textSize="13sp" />
<!-- 减号-->
<ImageView
android:id="@+id/shopping_lv_add"
android:layout_width="30dp"
android:layout_height="30dp"
android:layout_alignTop="@+id/shopping_lv_sub"
android:layout_marginLeft="@dimen/dp_10"
android:layout_toEndOf="@+id/shopping_lv_number"
android:background="@drawable/add_button_shape"
android:src="@mipmap/icon_add_3x" />
<ImageView
android:id="@+id/shopping_lv_delete"
android:layout_width="wrap_content"
android:layout_height="wrap_content"
android:layout_alignParentEnd="true"
android:layout_centerVertical="true"
android:layout_marginEnd="20dp"
android:layout_marginLeft="@dimen/dp_110"
android:layout_marginRight="@dimen/dp_15"
android:src="@mipmap/btn_delete_3x" />
</RelativeLayout>
</LinearLayout>
</LinearLayout>
获取listview中的imgDelete控件，执行删除单条纪录的操作。
ShoppingCartListViewAdapter：
private View.OnClickListener onDelItem;//删除单条item的接口
...
public View getView(final int i, View view, ViewGroup viewGroup) {
ViewHolder holder = null;
if (view == null) {
holder = new ViewHolder();
view = LayoutInflater.from(this.context).inflate(R.layout.shopping_listview_item, null, true);
//实例化item获取控件
holder.shopping_lv_delete = (ImageView) view.findViewById(R.id.shopping_lv_delete);
//设置回调监听
holder. shopping_lv_delete.setOnClickListener(onDelItem);
holder.shopping_lv_delete.setTag(i);
view.setTag(holder);
} else {
holder = (ViewHolder) view.getTag();
}
class ViewHolder {
ImageView shopping_lv_delete;
}
/**
*定义监听接口
*/
public void setOnDelItem(View.OnClickListener onDelItem) {
this.onDelItem = onDelItem;
}
Activity：
private ShoppingCartListViewAdapter adapter;
private ListView shopping_listview;
private List<ShoppingCartListView> list = new ArrayList<ShoppingCartListView>();
...
shopping_lv_delete = (ImageView) findViewById(R.id.shopping_lv_delete);
shopping_lv_delete.setOnClickListener(this);
onCreate方法中设置适配器的监听，
adapter = new ShoppingCartListViewAdapter(getActivity(), list);
shopping_listview.setAdapter(adapter);
**adapter.setOnDelItem(this);**
通过Tag的position，获取当前点击的item，
这里使用了popupMenu。在点击删除的时候会弹出确认删除框
if (tag != null && tag instanceof Integer) {
int position = (Integer) tag;
showPopupMenu(view, position);
}
//删除弹窗
public void showPopupMenu(final View view, final int position) {
final PopupMenu popup = new PopupMenu(getActivity(), view);
popup.getMenuInflater().inflate(R.menu.popup, popup.getMenu());
popup.setOnMenuItemClickListener(new PopupMenu.OnMenuItemClickListener() {
@Override
public boolean onMenuItemClick(MenuItem menuItem) {
switch (menuItem.getItemId()) {
case R.id.remove:
list.remove(position);
adapter.notifyDataSetChanged();
break;
}
return false;
}
});
popup.show();
}
popup
<?xml version="1.0" encoding="utf-8"?>
<menu xmlns:android="http://schemas.android.com/apk/res/android">
<item
android:id="@+id/remove"
android:title="@string/delete"/>
</menu>
