Контакты Android

У меня в моем мессенджере есть реализация. Завтра в рабочем ноуте посмотрю, скину сюда код.

делал в далеком 2017г поэтому особенно ничего не подскажу. Это основные методы получения данных с андроида используя Qt.
Там еще какоето колдунство с манифестом. Андроидом давно не занимаюсь, не помню подробностей. Андроид + qt дело крайне муторное.

Код ниже надеюсь подскажет направление куда копать.
Понимаю что тут сам черт ногу сломит но что есть то есть.)
Когда то давно во всем этом я разобрался значит и вы сможете.
Как вариант ищите по ключевым фразам из кода инфу в сети.

файл QtAdMobActivity.java

import android.os.Bundle;
import android.view.View;
import android.view.Window;
import android.view.ViewGroup;
import android.util.Log;
import android.graphics.Rect;
import org.qtproject.qt5.android.bindings.QtActivity;
import org.qtproject.qt5.android.bindings.QtApplication;
import java.util.ArrayList;
import android.widget.FrameLayout;

import org.qtproject.qt5.android.bindings.QtActivity;
import android.app.Activity;
import android.os.Bundle;
import android.os.Build;
import android.view.Window;
import android.view.WindowManager;
import android.view.View;
import android.graphics.Color;
import android.content.Context;
//---------
import android.content.ContentResolver;
import android.database.Cursor;
import android.net.Uri;
import android.os.Bundle;
import android.provider.ContactsContract;

import android.app.Notification;
import android.app.NotificationManager;

//---------------SDK23++
import android.Manifest;
import android.content.Intent;
import android.content.pm.PackageManager;
//----------------SEND_SMS
import android.app.Activity;
import android.os.Bundle;
import android.telephony.SmsManager;
//----------------VOICE
import android.media.AudioManager;
//------------------

public class QtAdMobActivity extends QtActivity
{

//---Notification
private static NotificationManager m_notificationManager;
private static Notification.Builder m_builder;
private static QtAdMobActivity m_instance;

public QtAdMobActivity()
{
    System.out.println("QtAdMobActivity: initialize");
    m_instance = this;
}

public static void notify(String s)
{
if (m_notificationManager == null) {
m_notificationManager = (NotificationManager)m_instance.getSystemService(Context.NOTIFICATION_SERVICE);
m_builder = new Notification.Builder(m_instance);
m_builder.setSmallIcon(R.drawable.icon);
m_builder.setContentTitle("SOTA");
}

    m_builder.setContentText(s);
    m_notificationManager.notify(1, m_builder.build());
}

//-----------getheightStatusBar and ContactAndroid
@Override
public void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);

    //m_instance = this;//notify
    //m_instance.notify("test");

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.LOLLIPOP) {

            String[] permissions = new String[]{Manifest.permission.WRITE_EXTERNAL_STORAGE, Manifest.permission.READ_CONTACTS, Manifest.permission.ACCESS_NETWORK_STATE, Manifest.permission.INTERNET, Manifest.permission.READ_EXTERNAL_STORAGE, Manifest.permission.SEND_SMS, Manifest.permission.ACCESS_COARSE_LOCATION, Manifest.permission.CHANGE_WIFI_STATE, Manifest.permission.ACCESS_WIFI_STATE};
            boolean flag = false;

            for (int i = 0; i < permissions.length; i++)
            {
                    if (checkSelfPermission(permissions[i]) == PackageManager.PERMISSION_DENIED)
                    {
                        flag = true;
                        break;
                    }
            }
            if (flag)
            {
                requestPermissions(permissions, 1);
            }

/*

        System.out.println("onCreate 1:");
        if (m_notificationManager == null) {
            System.out.println("onCreate 2:");
            m_notificationManager = (NotificationManager)m_instance.getSystemService(Context.NOTIFICATION_SERVICE);
            m_builder = new Notification.Builder(m_instance);
            m_builder.setSmallIcon(R.drawable.icon);
            m_builder.setContentTitle("SOTA");
        }

    if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.M
        && !m_notificationManager.isNotificationPolicyAccessGranted()) {
            System.out.println("onCreate 3:");

        Intent intent = new Intent(
                            android.provider.Settings
                            .ACTION_NOTIFICATION_POLICY_ACCESS_SETTINGS);

        startActivity(intent);
    }
        //--------

*/

            //getWindow().addFlags(WindowManager.LayoutParams.FLAG_DRAWS_SYSTEM_BAR_BACKGROUNDS);
            //getWindow().getDecorView().setSystemUiVisibility(View.SYSTEM_UI_FLAG_LAYOUT_FULLSCREEN);
            //getWindow().setStatusBarColor(Color.TRANSPARENT);
        } else {
            //getWindow().setFlags( WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS
              //                 , WindowManager.LayoutParams.FLAG_TRANSLUCENT_STATUS);
        }
    }
}

public String getContacts() {

    System.out.println("--------------getContacts----------------");

    String phoneNumber = null;
    int countPhone = 0;


    Uri CONTENT_URI = ContactsContract.Contacts.CONTENT_URI;
    String _ID = ContactsContract.Contacts._ID;
    String DISPLAY_NAME = ContactsContract.Contacts.DISPLAY_NAME;
    String HAS_PHONE_NUMBER = ContactsContract.Contacts.HAS_PHONE_NUMBER;

    Uri PhoneCONTENT_URI = ContactsContract.CommonDataKinds.Phone.CONTENT_URI;
    String Phone_CONTACT_ID = ContactsContract.CommonDataKinds.Phone.CONTACT_ID;
    String NUMBER = ContactsContract.CommonDataKinds.Phone.NUMBER;

    StringBuffer output = new StringBuffer();
    ContentResolver contentResolver = getContentResolver();
    Cursor cursor = contentResolver.query(CONTENT_URI, null,null, null, null);


    if (cursor.getCount() > 0) {


        while (cursor.moveToNext()) {
            String contact_id = cursor.getString(cursor.getColumnIndex( _ID ));
            String name = cursor.getString(cursor.getColumnIndex(DISPLAY_NAME));
            int hasPhoneNumber = Integer.parseInt(cursor.getString(cursor.getColumnIndex(HAS_PHONE_NUMBER)));


            if (hasPhoneNumber > 0) {
                System.out.println("-Contacts name:" + name);
                output.append("/" + name);
                Cursor phoneCursor = contentResolver.query(PhoneCONTENT_URI, null,
                Phone_CONTACT_ID + " = ?", new String[] { contact_id }, null);


                while (phoneCursor.moveToNext()) {
                    phoneNumber = phoneCursor.getString(phoneCursor.getColumnIndex(NUMBER));
                    //output.append(" ĐąĐ”Đ»Đ”Ń„ĐŸĐœ:" + phoneNumber);

                    System.out.println("-Contacts phone:" + phoneNumber);
                    output.append("\\" + phoneNumber);
                    countPhone++;
                }
            }
        }
    }

return output.toString();
}

файл .cpp

DeviceInfo &DeviceInfo::instance(QObject *parent)
{
static DeviceInfo instance(parent);
qDebug() << "DeviceInfo::instance:";
return instance;
}

include "DeviceInfo.h"

вместо кавычек нужно <> - сайт ломает текст
include "QAndroidJniObject"
include "QtAndroidExtras"
include "QtAndroid"
include "QRegExp"

const QHash > DeviceInfo::getContacts()
{
QHash > hash_phoneBook;
qulonglong phone_number;
QAndroidJniObject activity = QtAndroid::androidActivity(); //jint phoneCount = activity.callMethod ("getContacts");
QAndroidJniObject stringObj = activity.callObjectMethod ("getContacts");
QString phoneAll = stringObj.toString();
QString first_name;
QString last_name;
QString phone;

QStringList list_phone = phoneAll.split('/', QString::SkipEmptyParts);

for(int i = 0; i <  list_phone.count(); ++i)
{
    QStringList list_name_phone = list_phone.at(i).split('\\', QString::SkipEmptyParts);

    if(list_name_phone.count() > 0)
        first_name = list_name_phone.at(0);

    if(list_name_phone.count() > 1)
        phone = list_name_phone.at(1);
    QRegExp regexp("(\\D+)");

    phone.remove(regexp);
    phone_number = phone.toULongLong();

    qDebug() << "DeviceInfo::getContacts:" << phone_number << phone_my << phone_my.toULongLong() << phone;

    if(phone_number != phone_my.toULongLong()) {

        if(phone_number != 0 && phone_number > 9999999999) {

            QVector<QByteArray> vec_bArr;
            vec_bArr.append(QByteArray().append(first_name));
            hash_phoneBook.insert(QString::number(phone_number), vec_bArr);                
        }
    }

}
return hash_phoneBook;//(int) phoneCount;

}

void DeviceInfo::notify(QString msg)
{
QAndroidJniObject activity = QtAndroid::androidActivity(); //jint phoneCount = activity.callMethod ("getContacts");

QAndroidJniObject javaNotification = QAndroidJniObject::fromString(msg);
activity.callStaticMethod<void>("ltd/sota/QtAdMobActivity",
                                "notify",
                                "(Ljava/lang/String;)V",
                                javaNotification.object<jstring>());

}