Android - 自動填充聯繫人

我創建了一個顯示所有聯繫人姓名的AutoCompleteTextView框，但在查看Android API後，似乎我的方法可能效率很低。Android - 自動填充聯繫人

當前我抓住所有聯繫人的光標，將每個姓名和每個聯繫人ID放入兩個不同的數組，然後將名稱數組傳遞給AutoCompleteTextView。當用戶選擇一個項目時，我查找在上面創建的第二個id數組中選擇的聯繫人的ID。下面的代碼：

private ContactNames mContactData; 

// Fill the autocomplete textbox 
Cursor contactsCursor = grabContacts(); 
mContactData = new ContactNames(contactsCursor); 
ArrayAdapter<String> adapter = new ArrayAdapter<String>(this, R.layout.contact_name, mContactData.namesArray); 
mNameText.setAdapter(adapter); 

private class ContactNames { 
    private String[] namesArray; 
    private long[] idsArray;   

    private ContactNames(Cursor cur) { 
     namesArray = new String[cur.getCount()]; 
     idsArray = new long[cur.getCount()]; 

     String name; 
     Long contactid; 
     // Get column id's 
     int nameColumn = cur.getColumnIndex(People.NAME); 
     int idColumn = cur.getColumnIndex(People._ID); 
     int i=0; 
     cur.moveToFirst(); 
     // Check that there are actually any contacts returned by the cursor 
     if (cur.getCount()>0){ 
      do { 
       // Get the field values 
       name = cur.getString(nameColumn); 
       contactid = Long.parseLong(cur.getString(idColumn)); 
       // Do something with the values. 
       namesArray[i] = name; 
       idsArray[i] = contactid; 
       i++; 
      } while (cur.moveToNext()); 
     } 
    } 

    private long search(String name){ 
     // Lookup name in the contact list that we've put in an array 
     int indexOfName = Arrays.binarySearch(namesArray, name); 
     long contact = 0; 
     if (indexOfName>=0) 
     { 
      contact = idsArray[indexOfName]; 
     } 
     return contact; 
    } 
} 

private Cursor grabContacts(){ 
    // Form an array specifying which columns to return. 
    String[] projection = new String[] {People._ID, People.NAME}; 

    // Get the base URI for the People table in the Contacts content provider. 
    Uri contacts = People.CONTENT_URI; 

    // Make the query. 
    Cursor managedCursor = managedQuery(contacts, projection, null, null, People.NAME + " ASC"); // Put the results in ascending order by name 
    startManagingCursor(managedCursor); 
    return managedCursor; 
}

必須有這樣做的更好的方式 - 基本上我掙扎，看我怎麼能找到一個用戶在AutoCompleteTextView選擇哪個項目。有任何想法嗎？

乾杯。

來源

2010-04-13 The Salt