java - 如何插入多余的联系人？

Question

实际上我想要做的是插入冗余联系人并且没有任何名称（只是电话号码），例如我想在联系人中插入 123456789 次。不用说我是 Android 新手所以我有几个问题：

1. android 在哪里可以准确检查联系人是否是多余的？
2. 检查应该需要一些时间吧？而且我不希望那样，那么有什么方法可以禁用检查吗？这是我在stackoverflow上找到的代码

package com.example.contactsoperation;

import java.util.ArrayList;

import android.Manifest;
import android.app.Activity;
import android.content.ContentProviderOperation;
import android.content.ContentResolver;
import android.content.ContentValues;
import android.content.OperationApplicationException;
import android.content.pm.PackageManager;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Bundle;
import android.os.RemoteException;
import android.provider.ContactsContract;
import android.provider.ContactsContract.CommonDataKinds.Phone;
import android.provider.ContactsContract.CommonDataKinds.StructuredName;
import android.provider.ContactsContract.Data;
import android.provider.ContactsContract.RawContacts;
import android.view.Menu;
import android.widget.ListView;
import android.widget.TextView;

import androidx.appcompat.app.AppCompatActivity;

public class MainActivity extends AppCompatActivity {

    //    protected String[] names = {"Amanda", "Candy", "Dandy"};
    protected String[] numbers = {"1234567890", "1234567890", "1234567890"};
    protected int[] ids = {1, 2, 3};
    private static final int PERMISSIONS_REQUEST_READ_CONTACTS = 100;
    private static final int PERMISSIONS_REQUEST_WRITE_CONTACTS = 100;

    @Override
    protected void onCreate(Bundle savedInstanceState) {
        super.onCreate(savedInstanceState);
        setContentView(R.layout.activity_main);

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M && checkSelfPermission(Manifest.permission.WRITE_CONTACTS) != PackageManager.PERMISSION_GRANTED) {
//            requestPermissions(new String[]{Manifest.permission.READ_CONTACTS}, PERMISSIONS_REQUEST_READ_CONTACTS);
            requestPermissions(new String[]{Manifest.permission.WRITE_CONTACTS}, PERMISSIONS_REQUEST_WRITE_CONTACTS);
            //After this point you wait for callback in onRequestPermissionsResult(int, String[], int[]) overriden method
        } else {
            for (int i = 0; i < numbers.length; i++) {
//                writeContact(names[i], numbers[i]);
                writeContact(numbers[i]);
            }
        }
    }

    private void writeContact(String numbers) {

        ArrayList contentProviderOperations = new ArrayList();
        //insert raw contact using RawContacts.CONTENT_URI
        contentProviderOperations.add(ContentProviderOperation.newInsert(RawContacts.CONTENT_URI)
                .withValue(RawContacts.ACCOUNT_TYPE, null).withValue(RawContacts.ACCOUNT_NAME, null).build());
        //insert mobile number using Data.CONTENT_URI
        contentProviderOperations.add(ContentProviderOperation.newInsert(Data.CONTENT_URI)
                .withValueBackReference(ContactsContract.Data.RAW_CONTACT_ID, 0).withValue(Data.MIMETYPE, Phone.CONTENT_ITEM_TYPE)
                .withValue(Phone.NUMBER, numbers).withValue(Phone.TYPE, Phone.TYPE_MOBILE).build());
        try {
            getApplicationContext().getContentResolver().
                    applyBatch(ContactsContract.AUTHORITY, contentProviderOperations);
        } catch (RemoteException e) {
            e.printStackTrace();
        } catch (OperationApplicationException e) {
            e.printStackTrace();
        }
    }

    @Override
    protected void onDestroy() {
        super.onDestroy();
    }

    @Override
    public boolean onCreateOptionsMenu(Menu menu) {
        return true;
    }

附言

我故意想要冗余。实际上，我正在寻找的是禁用该检查，因为无论数字是否重复，都需要一些时间来检查它是否重复，并想象我想插入 1M 联系人它变得越来越慢检查如果它是多余的

标签： javaandroid