如何删除vcf文件中的重复联系人

Posted 2023-04-17

【中文标题】如何删除vcf文件中的重复联系人

【英文标题】：How to remove duplicate contacts in vcf file

【发布时间】：2014-09-14 12:19:26

【问题描述】：

大家好，我有这个代码，我用它从手机中获取联系人并将它们存储为 vcf 格式，该代码适用于只有一个号码的联系人，但我不断收到具有多个号码的联系人的重复，即有多个号码的联系人家庭号码，工作号码等..任何帮助将不胜感激.....这是我下面的代码

import java.io.File;
import java.io.FileInputStream;
import java.io.FileOutputStream;
import java.util.ArrayList;
import android.app.Activity;
import android.content.Context;
import android.content.res.AssetFileDescriptor;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.os.Environment;
import android.provider.ContactsContract;
import android.util.Log;


    public class Show_contacts extends Activity 
        Cursor cursor;
        ArrayList<String> vCard;
        String vfile;
        static Context mContext;

        /** Called when the activity is first created. */
        @Override
            public void onCreate(Bundle savedInstanceState) 
                super.onCreate(savedInstanceState);
                setContentView(R.layout.activity_main);
                mContext = Show_contacts.this;
                getVCF();
            

            public static void getVCF() 
                final String vfile = "Contacts.vcf";
                Cursor phones = mContext.getContentResolver().query(
                ContactsContract.CommonDataKinds.Phone.CONTENT_URI, null, null, null, null);
                phones.moveToFirst();
                for (int i = 0; i < phones.getCount(); i++) 
                    String lookupKey = phones.getString(phones.getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
                    Uri uri = Uri.withAppendedPath(ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);
                    AssetFileDescriptor fd;
                    try 
                        fd = mContext.getContentResolver().openAssetFileDescriptor(uri, "r");
                        FileInputStream fis = fd.createInputStream();
                        byte[] buf = new byte[(int) fd.getDeclaredLength()];
                        fis.read(buf);
                        String VCard = new String(buf);
                        String path = Environment.getExternalStorageDirectory().toString() + File.separator + vfile;
                        FileOutputStream mFileOutputStream = new FileOutputStream(path, true);
                        mFileOutputStream.write(VCard.toString().getBytes());
                        phones.moveToNext();
                        Log.d("Vcard", VCard);
                        mFileOutputStream.close();
                     catch (Exception e1) 
                        // TODO Auto-generated catch block
                        e1.printStackTrace();
                    
                
            
        

【参考方案1】：

我们必须检查lookupKey。它对我有用。

Cursor cursor;
ArrayList<String> vCard;
Context mContext;
ArrayList<String> saveLkKey;
String vcfFile;
String currentTime;
String rootStorage;

@Override
public View onCreateView(LayoutInflater inflater,
        @Nullable ViewGroup container, @Nullable Bundle savedInstanceState) 

    View view = inflater.inflate(R.layout.save_contact_fragment, container,
            false);

    mContext = getActivity();
    rootStorage = Environment.getExternalStorageDirectory() + "/";

    Time today = new Time(Time.getCurrentTimezone());
    today.setToNow();

    currentTime = today.monthDay + "" + (today.month + 1) + "" + today.year
            + "-" + today.format("%k%M%S") + "";

    vcfFile = "myContacts" + currentTime + ".vcf";


    Button btnSaveVcf = (Button) view.findViewById(R.id.btnSave1);
    btnSaveVcf.setOnClickListener(new OnClickListener() 

        @Override
        public void onClick(View v) 
            getVCF(vcfFile);

        

    );

return view;


public void getVCF(String vfile) 

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

    for (int i = 0; i < phones.getCount(); i++) 
        String lookupKey = phones.getString(phones
                .getColumnIndex(ContactsContract.Contacts.LOOKUP_KEY));
        lookupKey = lookupKey.trim();

        if (saveLkKey == null) 
            saveLkKey = new ArrayList<String>();
            saveLkKey.add(lookupKey);
         else 
            if (isDuplicate(lookupKey)) 

                phones.moveToNext();
                continue;
             else 
                saveLkKey.add(lookupKey);
            
        

        Uri uri = Uri.withAppendedPath(
                ContactsContract.Contacts.CONTENT_VCARD_URI, lookupKey);
        AssetFileDescriptor fd;
        try 
            fd = mContext.getContentResolver().openAssetFileDescriptor(uri,
                    "r");
            FileInputStream fis = fd.createInputStream();
            byte[] buf = new byte[(int) fd.getDeclaredLength()];
            fis.read(buf);
            String VCard = new String(buf);
            String path = rootStorage + vfile;

            FileOutputStream mFileOutputStream = new FileOutputStream(path,
                    true);
            mFileOutputStream.write(VCard.toString().getBytes());
            phones.moveToNext();
            Log.d("Vcard", VCard);
            mFileOutputStream.close();

         catch (Exception e1) 
            e1.printStackTrace();
        
    




public boolean isDuplicate(String lkKey) 
    for (String s : saveLkKey) 
        if (s.equals(lkKey)) 
            return true;
        
    
    return false;

【讨论】：

2 年后才回来查看这个问题，不幸的是我已经停止了 android 开发。同样感谢您的回答:)