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+")");  
             }  
  
        }  
    }  
}