Android 调用联系人，返回值并显示在edittext上

package com.example.contactdemo;

import android.app.Activity;
import android.content.ContentResolver;
import android.content.Intent;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;
import android.view.View;
import android.widget.EditText;

public class MainActivity extends Activity {

EditText text;
String username,usernumber;  //username和usernumber

@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
setContentView(R.layout.activity_main);
text = (EditText)findViewById(R.id.number);
}

public void click(View v){

　　/**
　　　*　获取返回值的activity调用
　　　*/
startActivityForResult(new Intent(
Intent.ACTION_PICK,ContactsContract.Contacts.CONTENT_URI), 0);
}

@Override
protected void onActivityResult(int requestCode, int resultCode, Intent data) {
super.onActivityResult(requestCode, resultCode, data);
if (resultCode == Activity.RESULT_OK) {
ContentResolver reContentResolverol = getContentResolver();
Uri contactData = data.getData();

@SuppressWarnings("deprecation")

　　　　　　　　//cursor查询联系人数据库
Cursor cursor = managedQuery(contactData, null, null, null, null);
cursor.moveToFirst();
username = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts.DISPLAY_NAME));
String contactId = cursor.getString(cursor.getColumnIndex(ContactsContract.Contacts._ID));
　　　　　　　　　　            Cursor phone = reContentResolverol.query(ContactsContract.CommonDataKinds.Phone.CONTENT_URI,
null,
ContactsContract.CommonDataKinds.Phone.CONTACT_ID + " = " + contactId,
null,
null);
while (phone.moveToNext()) {

　　　　　　　　　　　　　　　　//获取联系人的号码
usernumber = phone.getString(phone.getColumnIndex(ContactsContract.CommonDataKinds.Phone.NUMBER));

　　　　　　　　　　　　　　　　//将获取的联系人号码添加到edittext里
　　　　                 text.setText(usernumber+" ("+username+")");
}

}
}
}