简单实现可以多选的ProductListDialog<T>

只是一个范例，是为了代码快速迭代而写的
使用了listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);
效果图

import java.util.ArrayList;import java.util.List;import android.app.Dialog;import android.content.Context;import android.os.Bundle;import android.util.DisplayMetrics;import android.view.Gravity;import android.view.View;import android.view.Window;import android.view.WindowManager;import android.widget.AdapterView;import android.widget.ListView;import android.widget.Toast;import com.mb.bgfitting.CommonAdapter;import com.mb.bgfitting.ViewHolder;import com.mb.bgfitting.app.R;import com.mb.bgfitting.model.BillSaleDetailInfo;/** *  * @author pythoner *  */public class ProductListDialog<T> extends Dialog {private Context context;private ListView listView;private List<T> beans;private List<T> checkedBeans = new ArrayList<T>();private CommonAdapter<T> adapter;public ProductListDialog(Context context, List<T> beans) {this(context, R.style.Theme_Dialog_NoTitle, beans);// TODO Auto-generated constructor stub}public ProductListDialog(Context context, int theme, List<T> beans) {super(context, theme);// TODO Auto-generated constructor stubthis.context = context;this.beans = beans;init();}private void init() {this.setCanceledOnTouchOutside(true);this.setCancelable(true);}@Overrideprotected void onCreate(Bundle savedInstanceState) {// TODO Auto-generated method stubsuper.onCreate(savedInstanceState);setContentView(R.layout.dialog_product_list);initViews();// initValues();}private void initViews() {if (beans == null) {return;}findViewById(R.id.btn_ok).setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {// TODO Auto-generated method stubif (checkedBeans.size() == 0) {Toast.makeText(context, "请选择至少一件商品",Toast.LENGTH_LONG).show();return;}if (onOkClickListener != null) {onOkClickListener.onOkClick(v, checkedBeans);}dismiss();}});listView = (ListView) findViewById(R.id.listView);listView.setChoiceMode(ListView.CHOICE_MODE_MULTIPLE);listView.setAdapter(adapter = new CommonAdapter<T>(context, beans,R.layout.item_product_list) {@Overridepublic void setValues(ViewHolder helper, T item, final int position) {// TODO Auto-generated method stubif (item instanceof BillSaleDetailInfo) {BillSaleDetailInfo bean = (BillSaleDetailInfo) item;helper.setText(R.id.item_0, bean.getProdName());helper.setText(R.id.item_1, bean.getColorName());helper.setText(R.id.item_2, bean.getSizeName());}}});listView.setOnItemClickListener(new AdapterView.OnItemClickListener() {@Overridepublic void onItemClick(AdapterView<?> arg0, View v, int position,long id) {// TODO Auto-generated method stubT bean = beans.get(position);if (listView.isItemChecked(position)) {checkedBeans.add(bean);} else {if (checkedBeans.contains(bean)) {checkedBeans.remove(bean);}}}});}private void initValues() {// 不能写在init()中Window window = getWindow();WindowManager.LayoutParams lp = window.getAttributes();DisplayMetrics dm = context.getResources().getDisplayMetrics();lp.width = dm.widthPixels;lp.gravity = Gravity.BOTTOM;window.setAttributes(lp);}private OnOkClickListener<T> onOkClickListener;public interface OnOkClickListener<T> {public void onOkClick(View v, List<T> list);}public void setOnOkClickListener(OnOkClickListener<T> onOkClickListener) {this.onOkClickListener = onOkClickListener;}}

布局：

<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"    android:layout_width="@dimen/dialog_width"    android:layout_height="wrap_content"    android:background="@android:color/white"    android:orientation="vertical" >    <ListView        android:id="@+id/listView"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_weight="1"        android:cacheColorHint="@android:color/transparent" />        <Button         android:id="@+id/btn_ok"        android:layout_width="match_parent"        android:layout_height="wrap_content"        android:layout_marginTop="8dp"        android:text="确定"        android:textSize="@dimen/font_big"        /></LinearLayout>

单个Item布局：item_product_list.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="wrap_content"    android:orientation="horizontal"     android:background="@drawable/bg_item"    >        <TextView            android:id="@+id/item_0"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:paddingTop="8dp"            android:paddingBottom="8dp"            android:textColor="@color/base_text_black"            android:textSize="@dimen/font_middle"             android:layout_weight="1"            />        <TextView            android:id="@+id/item_1"            android:layout_width="40dp"            android:layout_height="wrap_content"            android:paddingTop="8dp"            android:paddingBottom="8dp"            android:textColor="@color/base_text_black"            android:textSize="@dimen/font_middle"  />        <TextView            android:id="@+id/item_2"            android:layout_width="match_parent"            android:layout_height="wrap_content"            android:paddingTop="8dp"            android:paddingBottom="8dp"            android:layout_weight="1"            android:textColor="@color/base_text_black"            android:textSize="@dimen/font_middle"  />        </LinearLayout>

选中的背景：bg_item.xml

<?xml version="1.0" encoding="UTF-8"?><selector xmlns:android="http://schemas.android.com/apk/res/android">    <item android:drawable="@color/base_blue" android:state_activated="true"></item>    <item android:drawable="@android:color/transparent"/></selector>

用法：

ProductListDialog<BillSaleDetailInfo> d=new ProductListDialog<BillSaleDetailInfo>(context,billSaleDetailInfos);d.setOnOkClickListener(new ProductListDialog.OnOkClickListener<BillSaleDetailInfo>() {@Overridepublic void onOkClick(View v,List<BillSaleDetailInfo> list) {// TODO Auto-generated method stubaddToShoppingCartIfNecessary(list);}});d.show();

Android开发技巧——自定义单选或多选的ListView
http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2015/0619/3089.html

ListView多选操作模式详解CHOICE_MODE_MULTIPLE与CHOICE_MODE_MULTIPLE_MODAL
http://www.jcodecraeer.com/a/anzhuokaifa/androidkaifa/2014/1105/1906.html