Android Api - 从联系人中获取手机号码

我尝试了很多教程，并在这里阅读了很多内容，但我无法解决我的问题：

单击按钮时，用户可以选择联系人的手机号码。实际上我可以获取所选联系人的姓名，但我找不到获取/选择手机号码的方法。

public void onCreate(Bundle savedInstanceState) {
    super.onCreate(savedInstanceState);
    setContentView(R.layout.main);

    /** Layouting */
    this.mGetMobileNumberButton = (Button)findViewById(R.id.getMobileNumberButton);
    this.mNameTextView = (TextView)findViewById(R.id.nameTextView);
    this.mMobileNumberTextView = (TextView)findViewById(R.id.mobileNumberTextView);


    /** onClick getContactInfos*/
   this.mGetMobileNumberButton.setOnClickListener(new OnClickListener() {
      public void onClick(View v){ 
          Intent intent = new Intent(Intent.ACTION_PICK, ContactsContract.Contacts.CONTENT_URI);
          startActivityForResult(intent, 1);        
      } 
    });
}

@Override
public void onActivityResult(int reqCode, int resultCode, Intent data) {
    super.onActivityResult(reqCode, resultCode, data);
    if (resultCode == Activity.RESULT_OK) {
        Uri contactData = data.getData();
        Cursor c = managedQuery(contactData, null, null, null, null);
        if (c.moveToFirst()) {
            String name = c.getString(c.getColumnIndexOrThrow(ContactsContract.Contacts.DISPLAY_NAME));
            mNameTextView.setText(name);
        }
    }
}

希望任何人都可以提供帮助:)

这将获得包含基本联系人数据的光标，并将循环遍历联系人拥有的电话号码，可以有多个。

    Uri uri = data.getData();
Cursor cursor=ctx.getContentResolver().query(uri, null, null, null, null);

   while (cursor.moveToNext()) { 
   String contactId = cursor.getString(cursor.getColumnIndex( 
     ContactsContract.Contacts._ID)); 
   String hasPhone = cursor.getString(cursor.getColumnIndex( 
     ContactsContract.Contacts.HAS_PHONE_NUMBER)); 
   if (Boolean.parseBoolean(hasPhone)) { 
                // You know have the number so now query it like this
Cursor phones = getContentResolver().query( 
  ContactsContract.CommonDataKinds.Phone.CONTENT_URI, 
  null, 
  ContactsContract.CommonDataKinds.Phone.CONTACT_ID +" = "+ contactId, 
      null, null); 
    while (phones.moveToNext()) { 
     String phoneNumber = phones.getString( 
       phones.getColumnIndex( 
         ContactsContract.CommonDataKinds.Phone.NUMBER));                 
    } 
    phones.close(); 
   } 
 }