地区选择控件杂记
1.json数据读取
private void initJsonData() { try { StringBuffer sb = new StringBuffer(); InputStream is = getAssets().open("city.json");//打开json数据 byte[] by = new byte[is.available()];//转字节 int len = -1; while ((len = is.read(by)) != -1) { sb.append(new String(by, 0, len, "gb2312"));//根据字节长度设置编码 } is.close();//关闭流 jsonObject = new JSONObject(sb.toString());//为json赋值 } catch (Exception e) { e.printStackTrace(); } }
2.初始化省市区数据
private void initDatas() { try { JSONArray jsonArray = jsonObject.getJSONArray("citylist");//获取整个json数据 allProv = new String[jsonArray.length()];//封装数据 for (int i = 0; i < jsonArray.length(); i++) { JSONObject jsonP = jsonArray.getJSONObject(i);//jsonArray转jsonObject String provStr = jsonP.getString("p");//获取所有的省 allProv[i] = provStr;//封装所有的省 JSONArray jsonCity = null; try { jsonCity = jsonP.getJSONArray("c");//在所有的省中取出所有的市，转jsonArray } catch (Exception e) { continue; } //所有的市 String[] allCity = new String[jsonCity.length()];//所有市的长度 for (int c = 0; c < jsonCity.length(); c++) { JSONObject jsonCy = jsonCity.getJSONObject(c);//转jsonObject String cityStr = jsonCy.getString("n");//取出所有的市 allCity[c] = cityStr;//封装市集合 JSONArray jsonArea = null; try { jsonArea = jsonCy.getJSONArray("a");//在从所有的市里面取出所有的区,转jsonArray } catch (Exception e) { continue; } String[] allArea = new String[jsonArea.length()];//所有的区 for (int a = 0; a < jsonArea.length(); a++) { JSONObject jsonAa = jsonArea.getJSONObject(a); String areaStr = jsonAa.getString("s");//获取所有的区 allArea[a] = areaStr;//封装起来 } areaMap.put(cityStr, allArea);//某个市取出所有的区集合 } cityMap.put(provStr, allCity);//某个省取出所有的市, } } catch (JSONException e) { e.printStackTrace(); } jsonObject = null;//清空所有的数据 }
3.adapter
3.1更新adapter
provinceAdapter = new RegionAdapter(context, R.layout.region_item); for (int i = 0; i < allProv.length; i++) { Region protemp = new Region(allProv[i], 0); prolist.add(protemp); } provinceAdapter.addAll(prolist);
/** * 根据当前的省，更新市和区的信息 */ private void updateCityAndArea(Object object) { String[] cities = cityMap.get(object); cityAdapter.clear();//清空adapter的数据 citylist.clear(); for (int i = 0; i < cities.length; i++) { Region citytemp = new Region(cities[i], 0); citylist.add(citytemp);//将这个列表“市”添加到adapter中 } cityAdapter.addAll(citylist); cityAdapter.notifyDataSetChanged();//刷新 updateArea(cities[0]);//更新区,没有市则默认第一个给它 } //根据当前的市，更新区的信息 private void updateArea(Object object) { String[] area = areaMap.get(object); areaAdapter.clear();//清空 arealist.clear(); if (area != null) { for (int i = 0; i < area.length; i++) { Region areatemp = new Region(area[i], 0); arealist.add(areatemp); } areaAdapter.addAll(arealist);//填入到这个列表 areaAdapter.notifyDataSetChanged();//刷新 } }
4.选中效果
//监听点击item事件 private void setLVListener() { list_view.setOnItemClickListener(new AdapterView.OnItemClickListener() { @Override public void onItemClick(AdapterView<?> parent, View view, int position, long id) { switch (zeroflag) { case "province": zeroflag = "city"; provinceName = provinceAdapter.getItem(position).getName(); printNike(prolist, provinceAdapter, position); updateCityAndArea(provinceName); new Thread(new Runnable() { @Override public void run() { Message message = new Message(); message.what = 1; mHandler.sendMessageDelayed(message, 88); } }).start(); break; case "city": zeroflag = "area"; printNike(citylist, cityAdapter, position);//打勾 cityName = cityAdapter.getItem(position).getName(); new Thread(new Runnable() { @Override public void run() { Message message = new Message(); message.what = 2; mHandler.sendMessageDelayed(message, 88); } }).start(); break; case "area": //兼容已有地址 if (areaMap.get(tv_city.getText().toString()) != null) { zeroflag = ""; areaName = areaAdapter.getItem(position).getName(); tv_area.setText(areaName); ll_area.setBackgroundColor(Color.parseColor("#f0eff4")); tv_area.setTextColor(Color.parseColor("#50afff")); printNike(arealist, areaAdapter, position); rpdismiss(); //返回选择地区 act.changeTvre(tv_pro.getText().toString() + " " + tv_city.getText().toString() + " " + tv_area.getText().toString()); } break; } } }); }
public Handler mHandler = new Handler() { public void handleMessage(Message msg) { switch (msg.what) { case 1: list_view.setAdapter(cityAdapter); tv_pro.setTextColor(Color.BLACK); tv_pro.setText(provinceName); ll_pro.setBackgroundColor(Color.parseColor("#f0eff4")); ll_city.setBackgroundResource(R.drawable.line); tv_city.setText("请选择"); tv_city.setTextColor(Color.parseColor("#50afff")); break; case 2: tv_city.setTextColor(Color.BLACK); tv_city.setText(cityName); ll_city.setBackgroundColor(Color.parseColor("#f0eff4")); if (areaMap.get(cityName) != null) {//如果二级不为终点，弹出第三级 tv_area.setTextColor(Color.parseColor("#50afff")); tv_area.setText("请选择"); ll_area.setBackgroundResource(R.drawable.line); updateArea(cityName); list_view.setAdapter(areaAdapter); } else {//否则打勾退出 tv_city.setTextColor(Color.parseColor("#50afff")); tv_area.setText(""); //返回选择地区 act.changeTvre(tv_pro.getText().toString() + " " + tv_city.getText().toString() ); rpdismiss(); } break; default: break; } super.handleMessage(msg); } };
5.已有地区编辑
//监听TV事件 private void setTVListener() { tv_pro.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { zeroflag="province"; outSelect(zeroflag); list_view.setAdapter(provinceAdapter); } }); tv_city.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { zeroflag="city"; outSelect(zeroflag); updateCityAndArea(tv_pro.getText().toString()); list_view.setAdapter(cityAdapter); } }); tv_area.setOnClickListener(new View.OnClickListener() { @Override public void onClick(View v) { zeroflag="area"; outSelect(zeroflag); updateArea(tv_city.getText().toString()); list_view.setAdapter(areaAdapter); } }); } //设置请选择效果 private void outSelect(String sel){ switch (sel){ case "province": ll_pro.setBackgroundResource(R.drawable.line); tv_pro.setText("请选择"); tv_pro.setTextColor(Color.parseColor("#50afff")); tv_city.setTextColor(Color.BLACK); tv_city.setText(""); ll_city.setBackgroundColor(Color.parseColor("#f0eff4")); tv_area.setTextColor(Color.BLACK); tv_area.setText(""); ll_area.setBackgroundColor(Color.parseColor("#f0eff4")); break; case "city": ll_city.setBackgroundResource(R.drawable.line); tv_city.setText("请选择"); tv_city.setTextColor(Color.parseColor("#50afff")); tv_pro.setTextColor(Color.BLACK); ll_pro.setBackgroundColor(Color.parseColor("#f0eff4")); tv_area.setTextColor(Color.BLACK); tv_area.setText(""); ll_area.setBackgroundColor(Color.parseColor("#f0eff4"));break; case "area": ll_area.setBackgroundResource(R.drawable.line); tv_area.setText("请选择"); tv_area.setTextColor(Color.parseColor("#50afff")); tv_pro.setTextColor(Color.BLACK); ll_pro.setBackgroundColor(Color.parseColor("#f0eff4")); tv_city.setTextColor(Color.BLACK); ll_city.setBackgroundColor(Color.parseColor("#f0eff4"));break; } }
6.打勾
/** * 打勾 */ private void printNike(List<Region> relist, RegionAdapter readapter, int position) { String tempname = relist.get(position).getName();//取原item标签，拼上图片替换原item Region tempregion = new Region(tempname, R.drawable.select);//加入图片资源 tempregion.setIsend(true); relist.set(position, tempregion); readapter.clear(); readapter.addAll(relist); readapter.notifyDataSetChanged();//刷新 }
@Override public View getView(int position, @Nullable View convertView, @NonNull ViewGroup parent) { Region region=getItem(position); View view = LayoutInflater.from(getContext()).inflate(resourceId,parent,false); TextView tv_region=(TextView) view.findViewById(R.id.tv_region); ImageView Iv_region=(ImageView) view.findViewById(R.id.iv_region); tv_region.setText(region.getName()); if(region.getIsend()) { tv_region.setTextColor(Color.WHITE); view.setBackgroundColor(Color.parseColor("#50afff")); } Iv_region.setImageResource(region.getImageid()); return view; }
7.数据传递
private Handler mHandler = new Handler() { @Override public void handleMessage(Message msg) { switch (msg.what) { case BindMessageType.CLICK_INDUSTRY: Bundle idata = msg.getData(); industryName = idata.getString("industryName"); updateIndustryView(industryName); break; case BindMessageType.CLICK_AREA: Bundle data = msg.getData(); province = data.getString("province"); city = data.getString("city"); area = data.getString("area"); updateAreaView(province, city, area); break; } }
/** * 发送消息 * * @param messageType * @param province * @param city * @param area */ private void sendMessage(int messageType, String province, String city, String area) { Message message = new Message(); Bundle bundle = new Bundle(); bundle.putString("province", province); bundle.putString("city", city); bundle.putString("area", area); message.setData(bundle); message.what = messageType; cHandler.sendMessage(message); }
