Android source code: Get a list of cities across the country similar to contact sorting

Functional classification: Tools

Supported platforms: Android

Operating environment: Eclipse

Development language: Java

Development tool: Eclipse

Source code size: 1.24MB

Source code download address: http://down..com/data/1977281

Source code introduction

Project source address: https://github.com/kk-java/ChineseCityList

The Chinese city list is displayed similarly to a mobile phone address book. You can quickly locate the city by touching the first letter of the city's pinyin on the right side of the screen, and you can also quickly search by Chinese or pinyin.

** Fixed the issue of demo sorting errors on Xiaomi phones

Friends in need can refer to it!

Please forgive me if there is any infringement..

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Source code snippet

 package com.liucanwen.citylist; 
  
 import java.util.ArrayList;
 import java.util.List; 
  
 import android.app.Activity;
 import android.content.Context;
 import android.os.AsyncTask;
 import android.os.Bundle;
 import android.text.Editable;
 import android.text.TextWatcher;
 import android.util.Log;
 import android.view.View;
 import android.widget.AdapterView;
 import android.widget.EditText;
 import android.widget.Toast; 
  
 import com.liucanwen.citylist.adapter.CityAdapter;
 import com.liucanwen.citylist.data.CityData;
 import com.liucanwen.citylist.model.CityItem;
 import com.liucanwen.citylist.widget.ContactItemInterface;
 import com.liucanwen.citylist.widget.ContactListViewImpl; 
  
 public   class CityListActivity extends Activity implements TextWatcher
 {
 private Context context_ = CityListActivity.this ; 
  
 private ContactListViewImpl listview; 
  
 private EditText searchBox;
 private String searchString; 
  
 private Object searchLock = new Object();
 boolean inSearchMode = false ; 
  
 private   final   static String TAG = "MainActivity2" ; 
  
    List<contactiteminterface> contactList;
    List<contactiteminterface> filterList;
 private SearchListTask curSearchTask = null ; 
  
 @Override  
 public   void onCreate(Bundle savedInstanceState)
 {
 super .onCreate(savedInstanceState);
        setContentView(R.layout.citylist); 
  
        filterList = new ArrayList<contactiteminterface>();
        contactList = CityData.getSampleContactList(); 
  
        CityAdapter adapter = new CityAdapter( this ,R.layout.city_item, contactList); 
  
        listview = (ContactListViewImpl) this .findViewById(R.id.listview);
        listview.setFastScrollEnabled( true );
        listview.setAdapter(adapter); 
  
        listview.setOnItemClickListener( new AdapterView.OnItemClickListener()
 {
 @Override  
 public   void onItemClick(AdapterView parent, View v, int position,
 long id)
 {
                List<contactiteminterface> searchList = inSearchMode? filterList
                        : contactList; 
  
                Toast.makeText(context_,
                        searchList.get(position).getDisplayInfo(),
                        Toast.LENGTH_SHORT).show();
 }
 }); 
  
        searchBox = (EditText) findViewById(R.id.input_search_query);
        searchBox.addTextChangedListener( this );
 } 
  
 @Override  
 public   void afterTextChanged(Editable s)
 {
        searchString = searchBox.getText().toString().trim().toUpperCase(); 
  
 if (curSearchTask != null  
                && curSearchTask.getStatus() != AsyncTask.Status.FINISHED)
 {
 try  
 {
                curSearchTask.cancel( true );
            } catch (Exception e)
 {
                Log.i(TAG, "Fail to cancel running search task" );
 } 
  
 }
        curSearchTask = new SearchListTask();
        curSearchTask.execute(searchString);
 } 
  
 @Override  
 public   void beforeTextChanged(CharSequence s, int start, int count,
 int after)
 {
 } 
  
 @Override  
 public   void onTextChanged(CharSequence s, int start, int before, int count)
 {
 // do nothing  
 } 
  
 private   class SearchListTask extends AsyncTask<string, void ,= "" string= "" >
 { 
  
 @Override  
 protected String doInBackground(String... params)
 {
            filterList.clear(); 
  
            String keyword = params[ 0 ]; 
  
            inSearchMode = (keyword.length() > 0 ); 
  
 if (inSearchMode)
 {
 // get all the items matching this  
 for (ContactItemInterface item : contactList)
 {
                    CityItem contact = (CityItem) item; 
  
 boolean isPinyin = contact.getFullName().toUpperCase().indexOf(keyword) > - 1 ;
 boolean isChinese = contact.getNickName().indexOf(keyword) > - 1 ; 
  
 if (isPinyin || isChinese)
 {
                        filterList.add(item);
 } 
  
 } 
  
 }
 return   null ;
 } 
  
 protected   void onPostExecute(String result)
 { 
  
 synchronized (searchLock)
 { 
  
 if (inSearchMode)
 { 
  
                    CityAdapter adapter = new CityAdapter(context_,R.layout.city_item, filterList);
                    adapter.setInSearchMode( true );
                    listview.setInSearchMode( true );
                    listview.setAdapter(adapter);
 } else  
 {
                    CityAdapter adapter = new CityAdapter(context_,R.layout.city_item, contactList);
                    adapter.setInSearchMode( false );
                    listview.setInSearchMode( false );
                    listview.setAdapter(adapter);
 }
 } 
  
 }
 } 
  
 }
 </string,></contactiteminterface></contactiteminterface></contactiteminterface></contactiteminterface>

Source code download address: http://down..com/data/1977281