安卓A-Z城市列表排序

前言：上一篇是ListView写的这次换成RecyclerView来，并且扩展性更加高些

链接：https://blog.csdn.net/qq_34536167/article/details/78241092

首先build.gradle：加入

 //拼音解析implementation 'com.belerweb:pinyin4j:2.5.1'

1、效果图：

2、项目结构：

3、MainActivity：

import android.os.Bundle;
import android.support.v7.app.AppCompatActivity;
import android.support.v7.widget.LinearLayoutManager;
import android.support.v7.widget.RecyclerView;
import android.util.Log;
import android.widget.TextView;
import android.widget.Toast;import java.util.ArrayList;
import java.util.Collections;
import java.util.List;public class MainActivity extends AppCompatActivity {private RecyclerView recyclerCity;private TextView dialog;private SideBar sidebar;private List<Object> objects;private List<CityDto.CityDetails.DataCity> list1;private List<CityDto.CityDetails.DataCity> list2;private List<CityDto.CityDetails.DataCity> list3;private List<CityDto.CitySortDetails.CitySortDto> list4;@Overrideprotected void onCreate(Bundle savedInstanceState) {super.onCreate(savedInstanceState);setContentView(R.layout.activity_main);recyclerCity = this.findViewById(R.id.recycler_city);dialog = this.findViewById(R.id.dialog);sidebar = this.findViewById(R.id.sidebar);initData();}private void initData() {if (null == objects) {objects = new ArrayList<>();}if (null == list1) {list1 = new ArrayList<>();} else {list1.clear();}if (null == list2) {list2 = new ArrayList<>();} else {list2.clear();}if (null == list3) {list3 = new ArrayList<>();} else {list3.clear();}if (null == list4) {list4 = new ArrayList<>();} else {list4.clear();}CityDto.CityDetails orderDetails1 = new CityDto.CityDetails();CityDto.CityDetails orderDetails2 = new CityDto.CityDetails();CityDto.CityDetails orderDetails3 = new CityDto.CityDetails();CityDto.CityDetails.DataCity detailsList1 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList2 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList3 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList4 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList5 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList6 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList7 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList8 = new CityDto.CityDetails.DataCity();CityDto.CityDetails.DataCity detailsList9 = new CityDto.CityDetails.DataCity();CityDto.CitySortDetails orderDetails4 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails5 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails6 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails7 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails8 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails9 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails10 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails11 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails12 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails13 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails14 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails15 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails16 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails17 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails18 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails19 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails20 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails21 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails22 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails23 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails24 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails25 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails26 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails27 = new CityDto.CitySortDetails();CityDto.CitySortDetails orderDetails28 = new CityDto.CitySortDetails();detailsList1.setCityName("重庆");detailsList2.setCityName("湖北");detailsList3.setCityName("湖南");detailsList4.setCityName("河北");detailsList5.setCityName("四川");detailsList6.setCityName("天津");detailsList7.setCityName("吉林");detailsList8.setCityName("黑龙");detailsList9.setCityName("江西");list4.add(new CityDto.CitySortDetails.CitySortDto("广东"));list4.add(new CityDto.CitySortDetails.CitySortDto("北京"));list4.add(new CityDto.CitySortDetails.CitySortDto("福建"));list4.add(new CityDto.CitySortDetails.CitySortDto("浙江"));list4.add(new CityDto.CitySortDetails.CitySortDto("山东"));list4.add(new CityDto.CitySortDetails.CitySortDto("江苏"));list4.add(new CityDto.CitySortDetails.CitySortDto("河南"));list4.add(new CityDto.CitySortDetails.CitySortDto("安徽"));list4.add(new CityDto.CitySortDetails.CitySortDto("重庆"));list4.add(new CityDto.CitySortDetails.CitySortDto("湖北"));list4.add(new CityDto.CitySortDetails.CitySortDto("湖南"));list4.add(new CityDto.CitySortDetails.CitySortDto("河北"));list4.add(new CityDto.CitySortDetails.CitySortDto("四川"));list4.add(new CityDto.CitySortDetails.CitySortDto("天津"));list4.add(new CityDto.CitySortDetails.CitySortDto("吉林"));list4.add(new CityDto.CitySortDetails.CitySortDto("黑龙"));list4.add(new CityDto.CitySortDetails.CitySortDto("江西"));list4.add(new CityDto.CitySortDetails.CitySortDto("辽宁"));list4.add(new CityDto.CitySortDetails.CitySortDto("内蒙"));list4.add(new CityDto.CitySortDetails.CitySortDto("宁夏"));list4.add(new CityDto.CitySortDetails.CitySortDto("青海"));list4.add(new CityDto.CitySortDetails.CitySortDto("山西"));list4.add(new CityDto.CitySortDetails.CitySortDto("陕西"));list4.add(new CityDto.CitySortDetails.CitySortDto("上海"));list4.add(new CityDto.CitySortDetails.CitySortDto("新疆"));list1.add(detailsList1);list1.add(detailsList2);list1.add(detailsList3);list1.add(detailsList4);list2.add(detailsList5);list2.add(detailsList6);list3.add(detailsList7);list3.add(detailsList8);list3.add(detailsList9);orderDetails1.setLocation("江西省赣州市");orderDetails1.setCityList(list1);orderDetails2.setCityList(list2);orderDetails3.setCityList(list3);orderDetails4.setCitySortDtos(list4);orderDetails5.setCitySortDtos(list4);orderDetails6.setCitySortDtos(list4);orderDetails7.setCitySortDtos(list4);orderDetails8.setCitySortDtos(list4);orderDetails9.setCitySortDtos(list4);orderDetails10.setCitySortDtos(list4);orderDetails11.setCitySortDtos(list4);orderDetails12.setCitySortDtos(list4);orderDetails13.setCitySortDtos(list4);orderDetails14.setCitySortDtos(list4);orderDetails15.setCitySortDtos(list4);orderDetails16.setCitySortDtos(list4);orderDetails17.setCitySortDtos(list4);orderDetails18.setCitySortDtos(list4);orderDetails19.setCitySortDtos(list4);orderDetails20.setCitySortDtos(list4);orderDetails21.setCitySortDtos(list4);orderDetails22.setCitySortDtos(list4);orderDetails23.setCitySortDtos(list4);orderDetails24.setCitySortDtos(list4);orderDetails25.setCitySortDtos(list4);orderDetails26.setCitySortDtos(list4);orderDetails27.setCitySortDtos(list4);orderDetails28.setCitySortDtos(list4);objects.add(orderDetails1);objects.add(orderDetails2);objects.add(orderDetails3);objects.add(orderDetails4);objects.add(orderDetails5);objects.add(orderDetails6);objects.add(orderDetails7);objects.add(orderDetails8);objects.add(orderDetails9);objects.add(orderDetails10);objects.add(orderDetails11);objects.add(orderDetails12);objects.add(orderDetails13);objects.add(orderDetails14);objects.add(orderDetails15);objects.add(orderDetails16);objects.add(orderDetails17);objects.add(orderDetails18);objects.add(orderDetails19);objects.add(orderDetails20);objects.add(orderDetails21);objects.add(orderDetails22);objects.add(orderDetails23);objects.add(orderDetails24);objects.add(orderDetails25);objects.add(orderDetails26);objects.add(orderDetails27);objects.add(orderDetails28);//排序list4 = Tools.filledData(list4, sidebar);Collections.sort(list4, new PinyinComparator());final CityAdapter adapter = new CityAdapter(this, objects, list4);final LinearLayoutManager manager = new LinearLayoutManager(this);recyclerCity.setLayoutManager(manager);recyclerCity.setAdapter(adapter);sidebar.setTextView(dialog);sidebar.setOnTouchingLetterChangedListener(new SideBar.OnTouchingLetterChangedListener() {@Overridepublic void onTouchingLetterChanged(String s) {//该字母首次出现的位置int position = adapter.getPositionForSection(s.charAt(0));if (position != -1) {Tools.moveToPosition(manager, position + 3);}Log.e("触摸的位置：", position + "");}});adapter.setListener(new CityAdapter.MoveToZeroListener() {@Overridepublic void cityName(String cityName) {Toast.makeText(MainActivity.this, cityName, Toast.LENGTH_LONG).show();}});}
}

4、CityAdapter：

public class CityAdapter extends RecyclerView.Adapter<RecyclerView.ViewHolder> {//所有要展示的数据源object集合private List<Object> objects;private static final int TYPE_ITEM_INFO = 0X123;private static final int TYPE_ITEM_CITY = 0X124;private Context mContext;private List<CityDto.CitySortDetails.CitySortDto> list = null;public CityAdapter(Context context, List<Object> objects, List<CityDto.CitySortDetails.CitySortDto> list) {this.mContext = context;this.objects = objects;this.list = list;}/*** 基于项不同的类型来获得不同的viewholder,关联对应的布局** @return*/@Overridepublic RecyclerView.ViewHolder onCreateViewHolder(ViewGroup parent, int viewType) {RecyclerView.ViewHolder viewHolder = null;switch (viewType) {case TYPE_ITEM_INFO:viewHolder = new DetailsHolder(inflate(parent, R.layout.item_city_list));break;case TYPE_ITEM_CITY:viewHolder = new CityHolder(inflate(parent, R.layout.item_sort_city));break;}return viewHolder;}/*** 关联布局*/private View inflate(ViewGroup parent, int resId) {return LayoutInflater.from(parent.getContext()).inflate(resId, parent, false);}@Overridepublic void onBindViewHolder(RecyclerView.ViewHolder holder, int position) {Object object = objects.get(position);switch (holder.getItemViewType()) {case TYPE_ITEM_INFO://当前、定位、热门setTypeItemDetail((DetailsHolder) holder, (CityDto.CityDetails) object, position);break;case TYPE_ITEM_CITY://城市排序setTypeCityDetail((CityHolder) holder, position);break;}}@Overridepublic int getItemCount() {return objects == null ? 0 : objects.size();}/*** 获得每个项的类型** @param position* @return*/@Overridepublic int getItemViewType(int position) {Object object = objects.get(position);if (object instanceof CityDto.CityDetails) {return TYPE_ITEM_INFO;} else if (object instanceof CityDto.CitySortDetails) {return TYPE_ITEM_CITY;}return super.getItemViewType(position);}/*** 设置当前、定位、热门** @param holder       DetailsHolder* @param orderDetails 实体*/private void setTypeItemDetail(final DetailsHolder holder, final CityDto.CityDetails orderDetails, final int position) {CityItemAdapter adapter = new CityItemAdapter(mContext, orderDetails.getCityList());holder.recyclerList.setLayoutManager(new GridLayoutManager(mContext, 3));holder.recyclerList.setAdapter(adapter);adapter.setOnItemClickListener(new CommonRecyclerAdapter.OnItemClickListener() {@Overridepublic void onItemClick(RecyclerView parent, View view, int position) {listener.cityName(orderDetails.getCityList().get(position).getCityName());}});if (position == 0) {String location = orderDetails.getLocation();holder.cityTypeTitle.setText("当前：" + location);} else if (position == 1) {holder.cityTypeTitle.setText("定位最近访问");} else if (position == 2) {holder.cityTypeTitle.setText("热门城市");}}class DetailsHolder extends RecyclerView.ViewHolder {private RecyclerView recyclerList;private TextView cityTypeTitle;public DetailsHolder(View itemView) {super(itemView);recyclerList = itemView.findViewById(R.id.recycler_list);cityTypeTitle = itemView.findViewById(R.id.city_type_title);}}/*** 设置城市排序** @param holder CityHolder*/private void setTypeCityDetail(CityHolder holder, int position) {//注意此处position-3.因为前面已经有3个对象final int selectPosition = position - 3;int section = getSectionForPosition(selectPosition);//获取选中的位置if (selectPosition == getPositionForSection(section)) {holder.tvCatagory.setVisibility(View.VISIBLE);//首字母holder.tvCatagory.setText(list.get(selectPosition).getSortLetters());} else {holder.tvCatagory.setVisibility(View.GONE);}//城市名holder.tvCityName.setText((list.get(selectPosition).getName()));holder.tvCityName.setOnClickListener(new View.OnClickListener() {@Overridepublic void onClick(View v) {listener.cityName(list.get(selectPosition).getName());}});}public int getSectionForPosition(int position) {return list.get(position).getSortLetters().charAt(0);}public int getPositionForSection(int sectionIndex) {for (int i = 0; i < list.size(); i++) {String sortStr = list.get(i).getSortLetters();char firstChar = sortStr.toUpperCase().charAt(0);if (firstChar == sectionIndex) {return i;}}return -1;}class CityHolder extends RecyclerView.ViewHolder {private TextView tvCityName;private TextView tvCatagory;public CityHolder(View itemView) {super(itemView);tvCityName = itemView.findViewById(R.id.tv_city_name);tvCatagory = itemView.findViewById(R.id.tv_catagory);}}private MoveToZeroListener listener;public void setListener(MoveToZeroListener listener) {this.listener = listener;}/*** 将城市名回调给activity*/public interface MoveToZeroListener {void cityName(String cityName);}
}

5、CityDto：

public class CityDto {public static class CityDetails {private String location;public String getLocation() {return location;}public void setLocation(String location) {this.location = location;}private List<DataCity> cityList;public List<DataCity> getCityList() {return cityList;}public void setCityList(List<DataCity> cityList) {this.cityList = cityList;}public static class DataCity {private String cityName;public String getCityName() {return cityName;}public void setCityName(String cityName) {this.cityName = cityName;}public DataCity(String cityName) {this.cityName = cityName;}public DataCity() {}}}public static class CitySortDetails {private List<CitySortDto> citySortDtos;public List<CitySortDto> getCitySortDtos() {return citySortDtos;}public void setCitySortDtos(List<CitySortDto> citySortDtos) {this.citySortDtos = citySortDtos;}public static class CitySortDto {private String name;//显示的数据private String sortLetters;//显示数据拼音的首字母public String getName() {return name;}public void setName(String name) {this.name = name;}public String getSortLetters() {return sortLetters;}public void setSortLetters(String sortLetters) {this.sortLetters = sortLetters;}public CitySortDto() {}public CitySortDto(String name) {this.name = name;}}}
}

6、CityItemAdapter：

public class CityItemAdapter extends CommonRecyclerAdapter<CityDto.CityDetails.DataCity> {public CityItemAdapter(Context context, List<CityDto.CityDetails.DataCity> list) {super(context, R.layout.item_city_name, list);}@Overridepublic void convert(RecyclerHolder holder, CityDto.CityDetails.DataCity item, int position) {//城市名String name = item.getCityName();holder.setText(R.id.item_city_name, name);}
}

注意：CommonRecyclerAdapter原来文章写过

7、PinyinComparator：

import java.util.Comparator;/*** 功能描述：对数据根据A-Z进行排序，前面两个if判断主要是将不是以汉字开头的数据放在后面*/
public class PinyinComparator implements Comparator<CityDto.CitySortDetails.CitySortDto> {public int compare(CityDto.CitySortDetails.CitySortDto o1, CityDto.CitySortDetails.CitySortDto o2) {//这里主要是用来对ListView里面的数据根据ABCDEFG...来排序if (o1.getSortLetters().equals("@")|| o2.getSortLetters().equals("#")) {return -1;} else if (o1.getSortLetters().equals("#")|| o2.getSortLetters().equals("@")) {return 1;} else {return o1.getSortLetters().compareTo(o2.getSortLetters());}}}

8、PinyinUtils：

public class PinyinUtils {/*** 将字符串中的中文转化为拼音,英文字符不变** @param inputString 汉字* @return*/public static String getPingYin(String inputString) {HanyuPinyinOutputFormat format = new HanyuPinyinOutputFormat();format.setCaseType(HanyuPinyinCaseType.LOWERCASE);format.setToneType(HanyuPinyinToneType.WITHOUT_TONE);format.setVCharType(HanyuPinyinVCharType.WITH_V);String output = "";if (inputString != null && inputString.length() > 0&& !"null".equals(inputString)) {char[] input = inputString.trim().toCharArray();try {for (int i = 0; i < input.length; i++) {if (java.lang.Character.toString(input[i]).matches("[\\u4E00-\\u9FA5]+")) {String[] temp = PinyinHelper.toHanyuPinyinStringArray(input[i], format);output += temp[0];} elseoutput += java.lang.Character.toString(input[i]);}} catch (BadHanyuPinyinOutputFormatCombination e) {e.printStackTrace();}} else {return "*";}return output;}
}

9、SideBar：

public class SideBar extends View {public static String[] INDEX_STRING = {"A", "B", "C", "D", "E", "F", "G", "H", "I","J", "K", "L", "M", "N", "O", "P", "Q", "R", "S", "T", "U", "V","W", "X", "Y", "Z"};private OnTouchingLetterChangedListener onTouchingLetterChangedListener;private List<String> letterList;private int choose = -1;private Paint paint = new Paint();private TextView mTextDialog;public SideBar(Context context) {this(context, null);}public SideBar(Context context, AttributeSet attrs) {this(context, attrs, 0);}public SideBar(Context context, AttributeSet attrs, int defStyle) {super(context, attrs, defStyle);init();}private void init() {setBackgroundColor(Color.parseColor("#F0F0F0"));letterList = Arrays.asList(INDEX_STRING);}protected void onDraw(Canvas canvas) {super.onDraw(canvas);int height = getHeight();// 获取对应高度int width = getWidth();// 获取对应宽度int singleHeight = height / letterList.size();// 获取每一个字母的高度for (int i = 0; i < letterList.size(); i++) {paint.setColor(Color.parseColor("#606060"));paint.setTypeface(Typeface.DEFAULT_BOLD);paint.setAntiAlias(true);paint.setTextSize(30);// 选中的状态if (i == choose) {paint.setColor(Color.parseColor("#ffffff"));//选中文字颜色paint.setFakeBoldText(true);}// x坐标等于中间-字符串宽度的一半.float xPos = width / 2 - paint.measureText(letterList.get(i)) / 2;float yPos = singleHeight * i + singleHeight / 2;canvas.drawText(letterList.get(i), xPos, yPos, paint);paint.reset();// 重置画笔}}@Overridepublic boolean dispatchTouchEvent(MotionEvent event) {final int action = event.getAction();final float y = event.getY();// 点击y坐标final int oldChoose = choose;final OnTouchingLetterChangedListener listener = onTouchingLetterChangedListener;final int c = (int) (y / getHeight() * letterList.size());// 点击y坐标所占总高度的比例*b数组的长度就等于点击b中的个数.switch (action) {case MotionEvent.ACTION_UP:setBackgroundColor(Color.parseColor("#F0F0F0"));choose = -1;invalidate();if (mTextDialog != null) {mTextDialog.setVisibility(View.GONE);}break;default:setBackgroundResource(R.drawable.sidebar_background);if (oldChoose != c) {if (c >= 0 && c < letterList.size()) {if (listener != null) {listener.onTouchingLetterChanged(letterList.get(c));}if (mTextDialog != null) {mTextDialog.setText(letterList.get(c));mTextDialog.setVisibility(View.VISIBLE);}choose = c;invalidate();}}break;}return true;}public void setIndexText(ArrayList<String> indexStrings) {this.letterList = indexStrings;invalidate();}/*** 为SideBar设置显示当前按下的字母的TextView** @param mTextDialog*/public void setTextView(TextView mTextDialog) {this.mTextDialog = mTextDialog;}/*** 向外公开的方法** @param onTouchingLetterChangedListener*/public void setOnTouchingLetterChangedListener(OnTouchingLetterChangedListener onTouchingLetterChangedListener) {this.onTouchingLetterChangedListener = onTouchingLetterChangedListener;}/*** 接口*/public interface OnTouchingLetterChangedListener {void onTouchingLetterChanged(String s);}}

10、Tools：

public class Tools {/*** 先对乱序list进行排序** @param date* @return*/public static List<CityDto.CitySortDetails.CitySortDto> filledData(List<CityDto.CitySortDetails.CitySortDto> date, SideBar sideBar) {List<CityDto.CitySortDetails.CitySortDto> mSortList = new ArrayList<>();ArrayList<String> indexString = new ArrayList<>();//遍历需要排序的listfor (int i = 0; i < date.size(); i++) {//实例化CityDto.CitySortDetails.CitySortDto sortModel = new CityDto.CitySortDetails.CitySortDto();//讲名字set进实体中sortModel.setName(date.get(i).getName());//获得城市名的首字母（中文转英文）String pinyin = PinyinUtils.getPingYin(date.get(i).getName());//截取第一位即可，并转化为大写字母String sortString = pinyin.substring(0, 1).toUpperCase();//判断字母是否在A-Z之中if (sortString.matches("[A-Z]")) {//并添加到是实体中sortModel.setSortLetters(sortString.toUpperCase());//新的list不包含才添加if (!indexString.contains(sortString)) {indexString.add(sortString);}}mSortList.add(sortModel);}Collections.sort(indexString);sideBar.setIndexText(indexString);return mSortList;}/*** RecyclerView 移动到当前位置，** @param manager 设置RecyclerView对应的manager* @param n       要跳转的位置*/public static void moveToPosition(LinearLayoutManager manager, int n) {manager.scrollToPositionWithOffset(n, 0);//当前的managermanager.setStackFromEnd(true);//让最后添加的item始终显示在RecycleView中}
}

11、布局文件：

activity_main.xml

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"xmlns:tools="http://schemas.android.com/tools"android:layout_width="match_parent"android:layout_height="match_parent"android:orientation="vertical"><FrameLayout
        android:layout_width="match_parent"android:layout_height="match_parent"><android.support.v7.widget.RecyclerView
            android:id="@+id/recycler_city"android:layout_width="match_parent"android:layout_height="match_parent" /><TextView
            android:id="@+id/dialog"android:layout_width="80dp"android:layout_height="80dp"android:layout_gravity="center"android:background="#666"android:gravity="center"android:text="A"android:textColor="#fff"android:textSize="50sp"android:visibility="gone"tools:visibility="visible" /><com.helloword.SideBar
            android:id="@+id/sidebar"android:layout_width="30dp"android:layout_height="match_parent"android:layout_gravity="right|center"android:layout_marginBottom="25dp"android:layout_marginTop="40dp"android:background="@drawable/sidebar_background" /></FrameLayout>
</LinearLayout>

item_city_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="vertical"><TextView
        android:id="@+id/city_type_title"style="@style/tech_sort"android:padding="5dp"android:text="" /><android.support.v7.widget.RecyclerView
        android:id="@+id/recycler_list"android:layout_width="match_parent"android:layout_height="wrap_content"android:paddingBottom="5dp"android:paddingLeft="15dp"android:paddingRight="15dp"android:paddingTop="5dp" /><View
        android:id="@+id/item_line_second"style="@style/my_line_style" /></LinearLayout>

item_city_name.xml：

<?xml version="1.0" encoding="utf-8"?>
<LinearLayout xmlns:android="http://schemas.android.com/apk/res/android"android:layout_width="match_parent"android:gravity="center"android:layout_height="wrap_content"android:layout_margin="10dp"><TextView
        android:id="@+id/item_city_name"style="@style/city_item"android:text="深圳" /></LinearLayout>

item_sort_city.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="vertical"android:paddingRight="40dp"android:paddingLeft="15dp"android:background="#f5f5f5"><TextView
        android:layout_marginTop="10dp"android:id="@+id/tv_catagory"android:layout_width="wrap_content"android:layout_height="wrap_content"android:gravity="center"android:text="A"android:textColor="#666666"android:textSize="14sp" /><TextView
        android:layout_marginTop="10dp"android:layout_width="match_parent"android:id="@+id/tv_city_name"style="@style/city_item"android:text="深圳" /></LinearLayout>

12、资源文件：

city_item_bg.xml：

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"><solid
        android:color="@color/white_bg_color"/><corners
        android:radius="5dp"/><stroke
        android:width="0.5dp"android:color="#D4D4D4"/></shape>

selector_shape.xml：

<?xml version="1.0" encoding="utf-8"?>
<selector xmlns:android="http://schemas.android.com/apk/res/android"><item android:drawable="@color/unwhite_bg_color" android:state_pressed="true"/><item android:drawable="@color/white_bg_color" />
</selector>

sidebar_background.xml:

<?xml version="1.0" encoding="utf-8"?>
<shape xmlns:android="http://schemas.android.com/apk/res/android"android:shape="rectangle" ><gradient
        android:angle="90"android:endColor="#8F8F8F"android:startColor="#8F8F8F" /><corners
        android:bottomLeftRadius="5dp"android:topLeftRadius="5dp" /></shape>

颜色值：

   <color name="white_bg_color">#FFFFFF</color><color name="unwhite_bg_color">#E8E8E8</color>

styles.xml样式：

 <!--linear样式--><style name="city_style"><item name="android:layout_width">wrap_content</item><item name="android:layout_height">wrap_content</item><item name="android:textColor">#666</item><item name="android:textSize">14sp</item><item name="android:drawablePadding">5dp</item></style><!-- 分割线 --><style name="my_line_style"><item name="android:layout_width">match_parent</item><item name="android:layout_height">0.5dp</item><item name="android:background">#CBCBCB</item></style><!--排序item--><style name="tech_sort"><item name="android:layout_width">wrap_content</item><item name="android:layout_height">wrap_content</item><item name="android:textColor">#969696</item><item name="android:textSize">12sp</item></style><!-- 城市style --><style name="city_item"><item name="android:layout_width">wrap_content</item><item name="android:layout_height">wrap_content</item><item name="android:textColor">#454545</item><item name="android:textSize">14sp</item><item name="android:paddingLeft">25dp</item><item name="android:paddingRight">25dp</item><item name="android:paddingTop">5dp</item><item name="android:paddingBottom">5dp</item><item name="android:background">@drawable/city_item_bg</item></style>

如果要增加城市搜索输入功能，可以参考原来的自行扩展

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