ExpandableListVIew里面有显示

来源：互联网发布：mac如何安ps 编辑：程序博客网时间：2024/04/26 18:37
public class MainActivity extends AppCompatActivity {    private ExpandableListView listview;    private MyAdpater adpater;    private TextView checked_shop;    private TextView price;    List<Shangjia> shangjias;    @Override    protected void onCreate(Bundle savedInstanceState) {        super.onCreate(savedInstanceState);        setContentView(R.layout.activity_main);        listview = (ExpandableListView) findViewById(R.id.listview);        adpater = new MyAdpater(this);        listview.setAdapter(adpater);        final CheckBox checkAll = (CheckBox) findViewById(R.id.checkAll);        price = (TextView) findViewById(R.id.price);        checked_shop = (TextView) findViewById(R.id.checked_shop);        checkAll.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                //设置商品全部选中                adpater.checkAllShop(checkAll.isChecked());                //计算选中的价格和数量                String shopPrice = adpater.getShopPrice();                //判断商品是否全部选中                boolean b = adpater.selectAll();                String[] split = shopPrice.split(",");                price.setText(split[0]);                checked_shop.setText(split[1]);                checkAll.setChecked(b);            }        });        adpater.getAdapterData(new MyAdpater.AdapterData() {            @Override            public void Data(View v, String str, boolean b) {                String[] split = str.split(",");                price.setText(split[0]);                checked_shop.setText(split[1]);                checkAll.setChecked(b);            }        });        checkAll.setChecked(adpater.selectAll());        adpater.notifyDataSetChanged();    }}
Myadapater类：
public class MyAdpater extends BaseExpandableListAdapter {    private Context context;    private String[] group;    private String[][] child;    private HashMap<Integer, Boolean> groupList;    private List<HashMap<Integer, Boolean>> childList;    private List<List<Bean>> dataList;    public MyAdpater(Context context) {        this.context = context;        initData();    }    private void initData() {        group = new String[5];        child = new String[5][];        groupList = new HashMap<>();        childList = new ArrayList<>();        dataList = new ArrayList<>();        for (int i = 0; i < 5; i++) {            group[i] = "商家" + i;            groupList.put(i, false);            String[] strings = new String[3];            HashMap<Integer, Boolean> map = new HashMap<>();            ArrayList<Bean> been = new ArrayList<>();            for (int y = 0; y < 3; y++) {                strings[y] = "商家" + i + "商品" + y;                map.put(y, false);                Bean bean = new Bean("100", "1");                been.add(bean);            }            child[i] = strings;            childList.add(map);            dataList.add(been);        }    }    @Override    public int getGroupCount() {        return group.length;    }    @Override    public int getChildrenCount(int groupPosition) {        return child[groupPosition].length;    }    @Override    public Object getGroup(int groupPosition) {        return group[groupPosition];    }    @Override    public Object getChild(int groupPosition, int childPosition) {        return child[childPosition];    }    @Override    public long getGroupId(int groupPosition) {        return groupPosition;    }    @Override    public long getChildId(int groupPosition, int childPosition) {        return childPosition;    }    @Override    public boolean hasStableIds() {        return false;    }    @Override    public View getGroupView(final int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {        GroupViewHolder holder = null;        if (convertView == null) {            convertView = View.inflate(context, R.layout.group_item, null);            holder = new GroupViewHolder();            holder.tv = (TextView) convertView.findViewById(R.id.group_tv);            holder.ck = (CheckBox) convertView.findViewById(R.id.group_ck);            convertView.setTag(holder);        } else {            holder = (GroupViewHolder) convertView.getTag();        }        holder.tv.setText(group[groupPosition]);        holder.ck.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                groupList.put(groupPosition, !groupList.get(groupPosition));                //设置二级列表的选中状态,根据一级列表的状态来改变                setChildCheckAll();                //计算选中的价格和数量                String shopPrice = getShopPrice();                //判断商品是否全部选中                boolean b = selectAll();                adapterData.Data(v, shopPrice, b);            }        });        holder.ck.setChecked(groupList.get(groupPosition));        return convertView;    }    @Override    public View getChildView(final int groupPosition, final int childPosition,                             boolean isLastChild, View convertView, ViewGroup parent) {        ChildViewHolder holder = null;        if (convertView == null) {            convertView = View.inflate(context, R.layout.child_item, null);            holder = new ChildViewHolder();            holder.tv = (TextView) convertView.findViewById(R.id.child_tv);            holder.ck = (CheckBox) convertView.findViewById(R.id.child_ck);            holder.jianshao = (TextView) convertView.findViewById(R.id.jianshao);            holder.zengjia = (TextView) convertView.findViewById(R.id.zengjia);            holder.number = (TextView) convertView.findViewById(R.id.number);            convertView.setTag(holder);        } else {            holder = (ChildViewHolder) convertView.getTag();        }        holder.tv.setText(child[groupPosition][childPosition]);        holder.ck.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                HashMap<Integer, Boolean> hashMap = childList.get(groupPosition);                hashMap.put(childPosition, !hashMap.get(childPosition));                //判断二级列表是否全部选中                ChildisChecked(groupPosition);                //计算选中的价格和数量                String shopPrice = getShopPrice();                //判断商品是否全部选中                boolean b = selectAll();                adapterData.Data(v, shopPrice, b);            }        });        final ChildViewHolder finalHolder = holder;        holder.zengjia.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                List<Bean> been = dataList.get(groupPosition);                String num = finalHolder.number.getText().toString();                int i = Integer.parseInt(num);                ++i;                been.get(childPosition).setNumber(i + "");                //计算选中的价格和数量                String shopPrice = getShopPrice();                //判断商品是否全部选中                boolean b = selectAll();                adapterData.Data(v, shopPrice, b);                notifyDataSetChanged();            }        });        holder.jianshao.setOnClickListener(new View.OnClickListener() {            @Override            public void onClick(View v) {                List<Bean> been = dataList.get(groupPosition);                String num = finalHolder.number.getText().toString();                int i = Integer.parseInt(num);                if (i > 1) {                    --i;                }                been.get(childPosition).setNumber(i + "");                //计算选中的价格和数量                String shopPrice = getShopPrice();                //判断商品是否全部选中                boolean b = selectAll();                adapterData.Data(v, shopPrice, b);                notifyDataSetChanged();            }        });        holder.number.setText(dataList.get(groupPosition).get(childPosition).getNumber().toString());        holder.ck.setChecked(childList.get(groupPosition).get(childPosition));        return convertView;    }    @Override    public boolean isChildSelectable(int groupPosition, int childPosition) {        return false;    }    class GroupViewHolder {        TextView tv;        CheckBox ck;    }    class ChildViewHolder {        TextView tv;        CheckBox ck;        TextView jianshao;        TextView zengjia;        TextView number;    }    //设置二级列表的选中状态,根据一级列表的状态来改变    private void setChildCheckAll() {        for (int i = 0; i < childList.size(); i++) {            HashMap<Integer, Boolean> integerBooleanHashMap1 = childList.get(i);            Set<Map.Entry<Integer, Boolean>> entries = integerBooleanHashMap1.entrySet();            for (Map.Entry<Integer, Boolean> entry : entries) {                entry.setValue(groupList.get(i));            }        }        notifyDataSetChanged();    }    //判断二级列表是否全部选中    private void ChildisChecked(int groupPosition) {        boolean ischecked = true;        HashMap<Integer, Boolean> hashMap = childList.get(groupPosition);        Set<Map.Entry<Integer, Boolean>> entries = hashMap.entrySet();        for (Map.Entry<Integer, Boolean> entry : entries) {            if (!entry.getValue()) {                ischecked = false;                break;            }        }        groupList.put(groupPosition, ischecked);        notifyDataSetChanged();    }    //全选    public void checkAllShop(boolean checked) {        Set<Map.Entry<Integer, Boolean>> entries = groupList.entrySet();        for (Map.Entry<Integer, Boolean> entry : entries) {            entry.setValue(checked);        }        setChildCheckAll();        notifyDataSetChanged();    }    //计算价格    public String getShopPrice() {        int price = 0;        int number = 0;        for (int y = 0; y < childList.size(); y++) {            HashMap<Integer, Boolean> integerBooleanHashMap1 = childList.get(y);            Set<Map.Entry<Integer, Boolean>> entries = integerBooleanHashMap1.entrySet();            for (Map.Entry<Integer, Boolean> entry : entries) {                if (entry.getValue()) {                    Bean bean = dataList.get(y).get(entry.getKey());                    price += Integer.parseInt(bean.getPrice()) * Integer.parseInt(bean.getNumber());                    number += Integer.parseInt(bean.getNumber());                }            }        }        return price + "," + number;    }    //编辑一级和二级列表,如果全部选中,全选按钮也选中    public boolean selectAll() {        boolean isChecked = true;        for (int y = 0; y < childList.size(); y++) {            HashMap<Integer, Boolean> hashMap = childList.get(y);            Set<Map.Entry<Integer, Boolean>> entries = hashMap.entrySet();            for (Map.Entry<Integer, Boolean> entry : entries) {                if (!entry.getValue()) {                    isChecked = false;                }            }        }        return isChecked;    }    private AdapterData adapterData;    public interface AdapterData {        void Data(View v, String str, boolean b);    }    public void getAdapterData(AdapterData adapterData) {        this.adapterData = adapterData;    }}
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