android 三级级联筛选列表
实现的思路：左边这个是 listView ,右边是两级的 expandListView?
将这两个 view 动态放到 viewpager 里面 设置好比例，剩下的就是处理点击联动事件了。
大体代码如下：
activity 中 放 viewpager 的 xml
<LinearLayout
android:id="@+id/category_ll"
android:layout_width="match_parent"
android:layout_height="wrap_content"
android:layout_above="@+id/button_ll"
android:layout_below="@+id/title_ll"
android:orientation="vertical"
android:visibility="gone">
<com.jky.mobile_gczjjc.widget.MyViewPager
android:id="@+id/category_viewpager"
android:layout_width="match_parent"
android:layout_height="match_parent"
android:overScrollMode="never" />
</LinearLayout>
target_first_parger.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:background="@color/target_divider_color"
android:orientation="vertical">
<ListView
android:id="@+id/target_first_lv"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/white"
android:cacheColorHint="@android:color/transparent"
android:divider="@null"
android:scrollbars="none" />
</LinearLayout>
target_second_parger.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:background="@color/target_divider_color"
android:orientation="vertical">
<ExpandableListView
android:id="@+id/target_second_exl"
android:layout_width="fill_parent"
android:layout_height="fill_parent"
android:background="@color/white"
android:cacheColorHint="@android:color/transparent"
android:divider="@null"
android:groupIndicator="@null"
android:scrollbars="none" />
</LinearLayout>
activity 中 核心代码
//一级
mViewPager = findViewById(R.id.category_viewpager);
LayoutInflater inflater = LayoutInflater.from(this);
view1 = inflater.inflate(R.layout.target_first_parger, null);
view2 = inflater.inflate(R.layout.target_second_parger, null);
mFirstListView = view1.findViewById(R.id.target_first_lv);
mSecondListView = view2.findViewById(R.id.target_second_exl);
mFirstAdapter = new TargetCategoryFirstAdapter(this, firstBeans);
mFirstAdapter.setSelectedBackgroundResource(R.drawable.select_white);//选中时
mFirstAdapter.setHasDivider(false);
mFirstAdapter.setNormalBackgroundResource(R.color.target_bg_gray);//未选中
mFirstListView.setAdapter(mFirstAdapter);
views.add(view1);
views.add(view2);//加载了一二级菜单
mViewPager.setAdapter(new MyPagerAdapter(views));
初始化数据及点击事件部分
private void initSelectCategory(CategoryBean bean) {
if (bean != null && bean.getData() != null) {
firstBeans = bean.getData();
}
FirstBean fBean = new FirstBean();
fBean.setName("全部");
fBean.setType("0");
fBean.setItems(new ArrayList<SecondBean>());
fBean.setSelect(true);
firstBeans.add(0, fBean);
if (mFirstAdapter == null) {
mFirstAdapter = new TargetCategoryFirstAdapter(TargetFilterActivity.this, firstBeans);
mSecondListView.setAdapter(mSecondAdapter);
} else {
mFirstAdapter.setData(firstBeans);
}
mFirstListView.setOnItemClickListener(new AdapterView.OnItemClickListener() {
@Override
public void onItemClick(AdapterView<?> parent, View view, int position, long id) {
FirstBean firstBean = firstBeans.get(position);
for (int i = 0; i < firstBeans.size(); i++) {
if (i == position) {
firstBeans.get(i).setSelect(true);
} else {
firstBeans.get(i).setSelect(false);
}
}
if (mFirstAdapter == null) {
mFirstAdapter = new TargetCategoryFirstAdapter(TargetFilterActivity.this, firstBeans);
mSecondListView.setAdapter(mSecondAdapter);
} else {
mFirstAdapter.setData(firstBeans);
}
if (firstBean.getType().equals("0")) {//不限
if (mSecondAdapter != null) {
mSecondAdapter.setData(new ArrayList<SecondBean>());
mSecondAdapter.notifyDataSetChanged();
}
} else {
mSecondList = firstBean.getItems();
for (int i = 0; i < mSecondList.size(); i++) {
mSecondList.get(i).setIsSelect(false);
for (int j = 0; j < mSecondList.get(i).getItems().size(); j++) {
mSecondList.get(i).getItems().get(j).setIsSelect(false);
}
}
if (mSecondAdapter == null) {
mSecondAdapter = new TargetCategorySecondAdapter(TargetFilterActivity.this, mSecondList);
mSecondListView.setAdapter(mSecondAdapter);
} else {
mSecondAdapter.setData(mSecondList);
}
String secondType = firstBean.getType();
String secondName = firstBean.getName();
if (secondType.equals("-1")) {
mProjectType = mFirstProjectType;
mProjectTypeName = mFirstProjectTypeName;
} else {
mProjectType = mFirstProjectType + "/" + secondType;
mProjectTypeName = mFirstProjectTypeName + "/" + secondName;
}
//默认全部展开
for (int i = 0; i < mSecondList.size(); i++) {
if (mSecondListView != null) {
mSecondListView.expandGroup(i);
}
}
}
}
});
//二级
mSecondListView.setOnGroupClickListener(new ExpandableListView.OnGroupClickListener() {
@Override
public boolean onGroupClick(ExpandableListView expandableListView, View view, int groupPosition, long l) {
for (int i = 0; i < mSecondList.size(); i++) {
if (i == groupPosition) {
mSecondList.get(i).setIsSelect(true);
} else {
mSecondList.get(i).setIsSelect(false);
}
for (int j = 0; j < mSecondList.get(i).getItems().size(); j++) {
mSecondList.get(i).getItems().get(j).setIsSelect(false);
}
}
String thirdType = mSecondList.get(groupPosition).getType();
String thirdName = mSecondList.get(groupPosition).getName();
mProjectType = mFirstProjectType + "/" + thirdType;
mProjectTypeName = mFirstProjectTypeName + "/" + thirdName;
mSecondAdapter.setData(mSecondList);
return true;
}
});
mSecondListView.setOnChildClickListener(new ExpandableListView.OnChildClickListener() {
@Override
public boolean onChildClick(ExpandableListView expandableListView, View view, int groupPosition, int childPosition, long l) {
for (int i = 0; i < mSecondList.size(); i++) {
if (i == groupPosition) {
mSecondList.get(i).setIsSelect(true);
} else {
mSecondList.get(i).setIsSelect(false);
}
List<SecondBean.ThirdBean> thirdList = mSecondList.get(i).getItems();
for (int j = 0; j < thirdList.size(); j++) {
if (i == groupPosition && j == childPosition) {
thirdList.get(j).setIsSelect(true);
} else {
thirdList.get(j).setIsSelect(false);
}
}
}
String thirdType = mSecondList.get(groupPosition).getType();
String thirdName = mSecondList.get(groupPosition).getName();
String fourType = mSecondList.get(groupPosition).getItems().get(childPosition).getType();
String fourName = mSecondList.get(groupPosition).getItems().get(childPosition).getName();
mProjectType = mFirstProjectType + "/" + thirdType + "/" + fourType;//工程类型 id
mProjectTypeName = mFirstProjectTypeName + "/" + thirdName + "/" + fourName;//工程名称 前端显示
mSecondAdapter.setData(mSeco
ndList);
return false;
}
});
}
MyViewPager
package com.jky.mobile_gczjjc.widget;
import android.content.Context;
import android.support.v4.view.ViewPager;
import android.util.AttributeSet;
/**
Created by LaiYingtang on 2016/5/22.
主页面左右滑动
*/
public class MyViewPager extends ViewPager {
public MyViewPager(Context context, AttributeSet attrs) {
super(context, attrs);
}
public MyViewPager(Context context) {
super(context);
}
//判断 menu 在 x,y 的位置
public void scrollTo(int x,int y){
if(getAdapter()==null||x>getWidth()*(getAdapter().getCount()-2)){
return;
}
super.scrollTo(x,y);
}
}
TargetCategoryFirstAdapter
package com.jky.mobile_gczjjc.adapter;
import android.content.Context;
import android.graphics.Color;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseAdapter;
import android.widget.TextView;
import com.jky.mobile_gczjjc.R;
import com.jky.mobile_gczjjc.bean.CategoryBean.FirstBean;
import java.util.ArrayList;
import java.util.List;
/**
指标 建筑分类 第一级适配器
@author zlw
*/
public class TargetCategoryFirstAdapter extends BaseAdapter {
private Context mContext;
private List<FirstBean> firstBeans =new ArrayList<>();
private int mSelectedBackgroundResource;//选中 item 时的背景颜色
private int mNormalBackgroundResource;//为选中的背景颜色
private boolean hasDivider = true;
public void setSelectedBackgroundResource(int mSelectedBackgroundResource) {
this.mSelectedBackgroundResource = mSelectedBackgroundResource;
}
public void setNormalBackgroundResource(int mNormalBackgroundResource) {
this.mNormalBackgroundResource = mNormalBackgroundResource;
}
public void setHasDivider(boolean hasDivider) {
this.hasDivider = hasDivider;
}
public TargetCategoryFirstAdapter(Context mContext, List<FirstBean> firstBeans) {
this.mContext = mContext;
this.firstBeans = firstBeans;
}
public void setData(List<FirstBean> data) {
this.firstBeans = data;
notifyDataSetChanged();
}
@Override
public int getCount() {
if (firstBeans == null) {
return 0;
}
return firstBeans.size();
}
@Override
public Object getItem(int position) {
if (firstBeans == null) {
return null;
}
return firstBeans.get(position);
}
@Override
public long getItemId(int position) {
return position;
}
@Override
public View getView(int position, View convertView, ViewGroup parent) {
ViewHolder vh = null;
if (convertView == null) {
vh = new ViewHolder();
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_target_category_first, null);
vh.itemLayout = convertView.findViewById(R.id.menu_item_ly);
vh.nameText = convertView.findViewById(R.id.name_rb);
vh.dividerTextView = convertView.findViewById(R.id.menu_item_divider);
convertView.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
FirstBean firstBean = firstBeans.get(position);
vh.nameText.setText(firstBean.getName());//设置标题
if (firstBean.isSelect){
vh.nameText.setTextColor(mContext.getResources().getColor(R.color.common_blue));
vh.itemLayout.setBackgroundResource(mSelectedBackgroundResource);
}else{
vh.nameText.setTextColor(Color.BLACK);
vh.itemLayout.setBackgroundResource(mNormalBackgroundResource);
}
//隐藏 view
vh.dividerTextView.setVisibility(hasDivider ? View.VISIBLE : View.INVISIBLE);
return convertView;
}
private class ViewHolder{
private View itemLayout;
private TextView nameText;
private TextView dividerTextView;
}
}
TargetCateGorySecondAdapter
package com.jky.mobile_gczjjc.adapter;
import android.content.Context;
import android.view.LayoutInflater;
import android.view.View;
import android.view.ViewGroup;
import android.widget.BaseExpandableListAdapter;
import android.widget.TextView;
import com.jky.mobile_gczjjc.R;
import com.jky.mobile_gczjjc.bean.CategoryBean.FirstBean.SecondBean;
import com.jky.mobile_gczjjc.bean.CategoryBean.FirstBean.SecondBean.ThirdBean;
import java.util.ArrayList;
import java.util.List;
/**
指标 建筑分类 第二级适配器
@author zlw
*/
public class TargetCategorySecondAdapter extends BaseExpandableListAdapter {
private Context mContext;
private List<SecondBean> secondBeans= new ArrayList<>();
private int selectedPos = -1;
public TargetCategorySecondAdapter(Context mContext, List<SecondBean> menuDatas) {
this.mContext = mContext;
this.secondBeans = menuDatas;
}
//选中的 position,及时更新数据
public void setSelectedPos(int selectedPos) {
this.selectedPos = selectedPos;
notifyDataSetChanged();
}
public void setData(List<SecondBean> data) {
this.secondBeans = data;
notifyDataSetChanged();
}
@Override
public int getGroupCount() {
return secondBeans.size();
}
@Override
public int getChildrenCount(int groupPosition) {
return secondBeans.get(groupPosition).getItems().size();
}
@Override
public Object getGroup(int groupPosition) {
return secondBeans.get(groupPosition);
}
@Override
public Object getChild(int groupPosition, int childPosition) {
return secondBeans.get(groupPosition).getItems().get(childPosition);
}
@Override
public long getGroupId(int groupPosition) {
return groupPosition;
}
@Override
public long getChildId(int groupPosition, int childPosition) {
return childPosition;
}
@Override
public boolean hasStableIds() {
return true;
}
@Override
public View getGroupView(int groupPosition, boolean isExpanded, View convertView, ViewGroup parent) {
ViewHolder vh = null;
if (convertView == null) {
vh = new ViewHolder();
convertView = LayoutInflater.from(mContext).inflate(R.layout.item_target_category_second, null);
vh.menu_item_ly = convertView.findViewById(R.id.menu_item_ly);
vh.nameText = convertView.findViewById(R.id.name_rb);
convertView.setTag(vh);
} else {
vh = (ViewHolder) convertView.getTag();
}
SecondBean secondBean = secondBeans.get(groupPosition);
if (secondBean.isSelect){
vh.nameText.setTextColor(mContext.getResources().getColor(R.color.red_text_color));
}else{
vh.nameText.setTextColor(mContext.getResources().getColor(R.color.gray_text_color));
}
vh.nameText.setText(secondBean.getName());//设置标题
return convertView;
}
@Override
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