正在檢索移動聯繫人在應用程序中顯示兩次

我正在使用ListView將移動聯繫人數據回顧到我的應用程序，但數據在列表中顯示兩次。幫助我如何控制顯示聯繫人兩次。我提到和許多解決方案通過網絡，但我不能夠sove。我連着下面的代碼：正在檢索移動聯繫人在應用程序中顯示兩次

public class MainActivity extends AppCompatActivity implements AdapterView.OnItemClickListener { 
private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100; 
List<String> name1 = new ArrayList<String>(); 
List<String> phno1 = new ArrayList<String>(); 
MyAdapter ma ; 
Button select; 
@Override 
protected void onCreate(Bundle savedInstanceState) { 
    super.onCreate(savedInstanceState); 
    setContentView(R.layout.display); 

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.READ_CONTACTS) != PackageManager.PERMISSION_GRANTED) { 
     requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS); 
     getAllContacts(this.getContentResolver()); 
     ListView lv = (ListView) findViewById(R.id.lv); 
     ma = new MyAdapter(); 
     lv.setAdapter(ma); 
     lv.setOnItemClickListener(this); 
     lv.setItemsCanFocus(false); 
     lv.setTextFilterEnabled(true); 
    }else { 
     getAllContacts(this.getContentResolver()); 
     ListView lv = (ListView) findViewById(R.id.lv); 
     ma = new MyAdapter(); 
     lv.setAdapter(ma); 
     lv.setOnItemClickListener(this); 
     lv.setItemsCanFocus(false); 
     lv.setTextFilterEnabled(true); 
    } 
    select = (Button) findViewById(R.id.button1); 
    select.setOnClickListener(new View.OnClickListener() 
    { 
     @Override 
     public void onClick(View v) { 
      StringBuilder checkedcontacts= new StringBuilder(); 
      System.out.println(".............."+ma.mCheckStates.size()); 
      for(int i = 0; i < name1.size(); i++) 

      { 
       if(ma.mCheckStates.get(i)==true) 
       { 
        checkedcontacts.append(name1.get(i).toString()); 
        checkedcontacts.append("\n"); 
       } 
       else 
       { 
        System.out.println("Not Checked......"+name1.get(i).toString()); 
       } 

      } 

      Toast.makeText(MainActivity.this, checkedcontacts,Toast.LENGTH_SHORT).show(); 
     } 
    }); 


} 
@Override 
public void onItemClick(AdapterView<?> arg0, View arg1, int arg2, long arg3) { 
    // TODO Auto-generated method stub 
    ma.toggle(arg2); 
} 

public void getAllContacts(ContentResolver cr) { 

    Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.SORT_KEY_PRIMARY); 

    while (phones.moveToNext()) 
    { 
     String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 
     String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
     System.out.println(".................."+phoneNumber +" >> "+ name); 

     name1.add(name); 
     phno1.add(phoneNumber); 
    } 

    phones.close(); 
} 
class MyAdapter extends BaseAdapter implements CompoundButton.OnCheckedChangeListener 
{ private SparseBooleanArray mCheckStates; 
    LayoutInflater mInflater; 
    TextView tv1,tv; 
    CheckBox cb; 
    MyAdapter() 
    { 
     mCheckStates = new SparseBooleanArray(name1.size()); 
     mInflater = (LayoutInflater)MainActivity.this.getSystemService(Context.LAYOUT_INFLATER_SERVICE); 
    } 
    @Override 
    public int getCount() { 
     // TODO Auto-generated method stub 
     return name1.size(); 
    } 

    @Override 
    public Object getItem(int position) { 
     // TODO Auto-generated method stub 
     return position; 
    } 

    @Override 
    public long getItemId(int position) { 
     // TODO Auto-generated method stub 

     return 0; 
    } 

    @Override 
    public View getView(final int position, View convertView, ViewGroup parent) { 
     // TODO Auto-generated method stub 
     View vi=convertView; 
     if(convertView==null) 
      vi = mInflater.inflate(R.layout.row, null); 
     TextView tv= (TextView) vi.findViewById(R.id.textView1); 
     tv1= (TextView) vi.findViewById(R.id.textView2); 
     cb = (CheckBox) vi.findViewById(R.id.checkBox1); 
     tv.setText("Name :"+ name1.get(position)); 
     tv1.setText("Phone No :"+ phno1.get(position)); 
     cb.setTag(position); 
     cb.setChecked(mCheckStates.get(position, false)); 
     cb.setOnCheckedChangeListener(this); 

     return vi; 
    } 
    public boolean isChecked(int position) { 
     return mCheckStates.get(position, false); 
    } 

    public void setChecked(int position, boolean isChecked) { 
     mCheckStates.put(position, isChecked); 
     System.out.println("hello..........."); 
     notifyDataSetChanged(); 
    } 

    public void toggle(int position) { 
     setChecked(position, !isChecked(position)); 
    } 
    @Override 
    public void onCheckedChanged(CompoundButton buttonView, 
           boolean isChecked) { 
     // TODO Auto-generated method stub 

     mCheckStates.put((Integer) buttonView.getTag(), isChecked); 
    } 
}}

我的輸出：

來源

2016-06-13 Rahul

這是因爲存儲是恢復接觸了兩次，他們會因爲谷歌聯繫人的複製，所以當你檢索只是把條件排除已在的聯繫人。

public void getAllContacts(ContentResolver cr) { 
    Cursor phones = getContentResolver().query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, ContactsContract.CommonDataKinds.Phone.SORT_KEY_PRIMARY); 

    while (phones.moveToNext()) 
    { 
     String name = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.DISPLAY_NAME)); 
     String phoneNumber = phones.getString(phones.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER)); 
     if(!phno1.contains(phoneNumber)) { // check wether contact already exists 
      name1.add(name); 
      phno1.add(phoneNumber); 
     } 
    } 
    phones.close(); 
}

來源

2016-06-13 10:25:45

正在檢索移動聯繫人在應用程序中顯示兩次

回答

相關問題