Android Address Book fuzzy search (numbers, names, initials, full spelling), batch select contacts

Android Address Book fuzzy search (numbers, names, initials, full spelling), batch select contacts
Android Address Book fuzzy search (numbers, names, initials, full spelling), batch select contacts

The company encountered a requirement in a recent project that needed to read contacts in the address book and support fuzzy queries and batch selection of contacts. Several examples were found online, fuzzy query is a little flawed. Finally, I optimized the fuzzy query of contacts based on the hard work of all netizens. the following functions are supported:

 

1. Search by number, name, and initial letter in a fuzzy match
2. Support for [A-Z] Quick navigation
3. Supports the first letter of contact.
4. Batch selection of contacts is supported.

 


Code structure:

Main Code:
ContactsActivity:

Package com. xbc. utils. activity; import java. util. arrayList; import java. util. collections; import java. util. list; import java. util. locale; import android. app. activity; import android. content. contentResolver; import android. database. cursor; import android. OS. bundle; import android. provider. contactsContract. commonDataKinds. phone; import android. text. editable; import android. text. textUtils; import android. text. textWatcher; import android. util. log; import android. view. view; import android. view. view. onClickListener; import android. widget. adapterView; import android. widget. adapterView. onItemClickListener; import android. widget. editText; import android. widget. imageView; import android. widget. listView; import android. widget. textView; import android. widget. toast; import com. xbc. contacts. r; import com. xbc. utils. activity. contactsSortAdapter. viewHolder; import com. xbc. utils. activity. sideBar. onTouchingLetterChangedListener; public class ContactsActivity extends Activity {ListView mListView; EditText etSearch; ImageView ivClearText; private SideBar sideBar; private TextView dialog; private List
 
  
MAllContactsList; private ContactsSortAdapter adapter;/*** convert Chinese characters into Pinyin classes */private CharacterParser characterParser;/*** sort data classes in ListView by pinyin */private PinyinComparator pinyinComparator; @ Overrideprotected void onCreate (Bundle savedInstanceState) {super. onCreate (savedInstanceState); setContentView (R. layout. layout_contacts); init ();} private void init () {initView (); initListener (); loadContacts ();} private void initListener () {/** clear input characters **/ivClearText. setOnClickListener (new OnClickListener () {@ Overridepublic void onClick (View v) {etSearch. setText () ;}}); etSearch. new TextWatcher () {@ Overridepublic void onTextChanged (CharSequence arg0, int arg1, int arg2, int arg3) {}@ Overridepublic void beforeTextChanged (CharSequence arg0, int arg1, int arg2, int arg3) {}@ Overridepublic void afterTextChanged (Editable e) {String content = etSearch. getText (). toString (); if (. equals (content) {ivClearText. setVisibility (View. INVISIBLE);} else {ivClearText. setVisibility (View. VISIBLE);} if (content. length ()> 0) {ArrayList
  
   
FileterList = (ArrayList
   
    
) Search (content); adapter. updateListView (fileterList); // mAdapter. updateData (mContacts);} else {adapter. updateListView (mAllContactsList);} mListView. setSelection (0) ;}}); // set the right side of the [A-Z] Quick navigation bar to touch the listening sideBar. setOnTouchingLetterChangedListener (new OnTouchingLetterChangedListener () {@ Overridepublic void onTouchingLetterChanged (String s) {// the first occurrence position of the letter int position = adapter. getPositionForSection (s. charAt (0); if (po Sition! =-1) {mListView. setSelection (position) ;}}); mListView. setOnItemClickListener (new OnItemClickListener () {@ Overridepublic void onItemClick (AdapterView
    AdapterView, View view, int position, long arg3) {ViewHolder viewHolder = (ViewHolder) view. getTag (); viewHolder. cbChecked. optional mclick (); adapter. toggleChecked (position) ;}}) ;}private void initView () {sideBar = (SideBar) findViewById (R. id. sidrbar); dialog = (TextView) findViewById (R. id. dialog); sideBar. setTextView (dialog); ivClearText = (ImageView) findViewById (R. id. ivClearText); etSearch = (EditText) findViewById (R. id. et_search); mListView = (ListView) findViewById (R. id. lv_contacts);/** set adapter for ListView **/characterParser = CharacterParser. getInstance (); mAllContactsList = new ArrayList
    
     
(); PinyinComparator = new PinyinComparator (); Collections. sort (mAllContactsList, pinyinComparator); // sort source data by a-z adapter = new ContactsSortAdapter (this, mAllContactsList); mListView. setAdapter (adapter);} private void loadContacts () {new Thread (new Runnable () {@ Overridepublic void run () {try {ContentResolver resolver = getApplicationContext (). getContentResolver (); Cursor phoneCursor = resolver. query (Phone. CONTENT_URI, new String [] {Phone. DISPLAY_NAME, Phone. NUMBER, sort_key}, null, null, sort_key collate localized asc); if (phoneCursor = null | phoneCursor. getCount () = 0) {Toast. makeText (getApplicationContext (), does not get the permission to read the contact or does not get the contact data, Toast. LENGTH_SHORT ). show (); return;} int PHONES_NUMBER_INDEX = phoneCursor. getColumnIndex (Phone. NUMBER); int PHONES_DISPLAY_NAME_INDEX = phoneCursor. getColumnIndex (Phone. DISPLAY_NAME); int SORT_KEY_INDEX = phoneCursor. getColumnIndex (sort_key); if (phoneCursor. getCount ()> 0) {mAllContactsList = new ArrayList
     
      
(); While (phoneCursor. moveToNext () {String phoneNumber = phoneCursor. getString (PHONES_NUMBER_INDEX); if (TextUtils. isEmpty (phoneNumber) continue; String contactName = phoneCursor. getString (PHONES_DISPLAY_NAME_INDEX); String sortKey = phoneCursor. getString (SORT_KEY_INDEX); // System. out. println (sortKey); SortModel sortModel = new SortModel (contactName, phoneNumber, sortKey); // The system sortkey is preferentially used, and the String sortLetters = sortKey is not obtained ); if (sortLetters = null) {sortLetters = getSortLetter (contactName);} sortModel. sortLetters = sortLetters; sortModel. sortToken = parseSortKey (sortKey); mAllContactsList. add (sortModel) ;}} phoneCursor. close (); runOnUiThread (new Runnable () {public void run () {Collections. sort (mAllContactsList, pinyinComparator); adapter. updateListView (mAllContactsList) ;}});} catch (Exception e) {Log. e (xbc, e. getLocalizedMessage ());}}}). start ();}/*** name to pinyin, with the first letter * @ param name * @ return */private String getSortLetter (String name) {String letter = #; if (name = null) {return letter;} // convert Chinese characters to pinyin String pinyin = characterParser. getSelling (name); String sortString = pinyin. substring (0, 1 ). toUpperCase (Locale. CHINESE); // regular expression to determine whether the first letter is an English letter, if (sortString. matches ([A-Z]) {letter = sortString. toUpperCase (Locale. CHINESE);} return letter;}/*** get the first letter of sort_key * @ param sortKey * @ return */private String getSortLetterBySortKey (String sortKey) {if (sortKey = null |. equals (sortKey. trim () {return null;} String letter =#; // convert Chinese characters to PinYin String sortString = sortKey. trim (). substring (0, 1 ). toUpperCase (Locale. CHINESE); // regular expression to determine whether the first letter is an English letter, if (sortString. matches ([A-Z]) {letter = sortString. toUpperCase (Locale. CHINESE);} return letter;}/*** fuzzy query * @ param str * @ return */private List
      
        Search (String str) {List
       
         FilterList = new ArrayList
        
          (); // The filtered listif (str. matches (^ ([0-9] | [/+]) * $) {// Regular Expression matching number for (SortModel contact: mAllContactsList) {if (contact. number! = Null & contact. name! = Null) {if (contact. number. contains (str) | contact. name. contains (str) {if (! FilterList. contains (contact) {filterList. add (contact) ;}}} else {for (SortModel contact: mAllContactsList) {if (contact. number! = Null & contact. name! = Null) {// name full match, name combination, name full match if (contact. name. toLowerCase (Locale. CHINESE ). contains (str. toLowerCase (Locale. CHINESE) | contact. sortKey. toLowerCase (Locale. CHINESE ). replace (,). contains (str. toLowerCase (Locale. CHINESE) | contact. sortToken. simpleSpell. toLowerCase (Locale. CHINESE ). contains (str. toLowerCase (Locale. CHINESE) | contact. sortToken. wholeSpell. toLowerCase (Locale. CHINESE ). contains (str. toLow ErCase (Locale. CHINESE) {if (! FilterList. contains (contact) {filterList. add (contact) ;}}}return filterList;} String chReg = [\ u4E00-\ u9FA5] +; // match Chinese strings // String chReg = [^ \ u4E00-\ u9FA5]; // match characters other than Chinese characters/*** parse sort_key, encapsulate the short spelling, full spell * @ param sortKey * @ return */public SortToken parseSortKey (String sortKey) {SortToken token = new SortToken (); if (sortKey! = Null & sortKey. length ()> 0) {// The Chinese character String [] enStrs = sortKey. replace (,). split (chReg); for (int I = 0, length = enStrs. length; I <length; I ++) {if (enStrs [I]. length ()> 0) {// concatenate a simple token. simpleSpell + = enStrs [I]. charAt (0); token. wholeSpell + = enStrs [I] ;}} return token ;}}