Android跳转到通讯录获取用户名称和手机号码的实现思路

Uri uri = Uri.parse("content://contacts/people");
Intent intent = new Intent(Intent.ACTION_PICK, uri);
startActivityForResult(intent, 0);

/*
 * 跳转联系人列表的回调函数
 * */
 @Override
 protected void onActivityResult(int requestCode, int resultCode, Intent data) {
  switch (requestCode){
   case 0:
    if(data==null)
    {
     return;
    }
    //处理返回的data,获取选择的联系人信息
    Uri uri=data.getData();
    String[] contacts=getPhoneContacts(uri);
    et_name.setText(contacts[0]);
    et_tele.setText(contacts[1]);
    break;
  }
  super.onActivityResult(requestCode, resultCode, data);
 }

private String[] getPhoneContacts(Uri uri){
  String[] contact=new String[2];
  //得到ContentResolver对象
  ContentResolver cr = getContentResolver();
  //取得电话本中开始一项的光标
  Cursor cursor=cr.query(uri,null,null,null,null);
  if(cursor!=null)
  {
   cursor.moveToFirst();
   //取得联系人姓名
   int nameFieldColumnIndex=cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME);
   contact[0]=cursor.getString(nameFieldColumnIndex);
   //取得电话号码
   String ContactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
   Cursor phone = cr.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null,
     ContactsContract.CommonDataKinds.Phone.CONTACT_ID + "=" + ContactId, null, null);
   if(phone != null){
    phone.moveToFirst();
    contact[1] = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));
   }
   phone.close();
   cursor.close();
  }
  else
  {
   return null;
  }
  return contact;
 }

<!--获取通讯录权限-->
<uses-permission Android:name="android.permission.READ_CONTACTS" />
<uses-permission android:name="android.permission.READ_PHONE_STATE" />