17 Killer Tips for Developing Android Apps Using Kotlin
Using Kotlin for Android Development? No worries, here are some tips and tricks that we've compiled for you.
Rakennan WordPress-poh...varastosaldoineen ja hinnoittelusääntöineen. • Asiakkaita palvelee tekoäly: – Chatbot vastaa kysymyksiin renkaista ja toimituksista. – Suosittelujärjestelmä ehdottaa sopivia tuotteita ajotavan, sään ja ajoneuvon perusteella. – Henkilökohtainen avustaja kokoaa ostoskorin ja neuvoo asennusvaihtoehdoissa. -1 vuoden ohjelmointi apu pitää sisältyä - onko mahdollista tehdä myös toimivat app android ja apple Toimitukseen sisältyy käyttöönottovalmis sivusto, selkeä teema-asettelu, responsiivinen design sekä lyhyt kirjallinen ohjeistus tuotetietojen ja tukkurifeedien hallintaan. Testaan jokaisen toiminnallisuuden – mak...
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Tarvitaan taitava koodari vaativan appin tekemiseen, iOS ja/tai Android. I am primarily looking for a Finnish person to do this.
Instamojo setup in Android setup
Android -sovellus Suunnittelma on jo valmis Olen rikas poika joka haluaa tehdä android version puhelin sensuurista
Android -sovellus Suunnittelma on jo valmis Peli sovellus ja käsitöiden edistäminen tekemällä kotona mittatilaus tavarana jalo puusta tai sopimuksen mukaan (Removed by Freelancer.com Admin)
Android -sovellus Se pitää suunnitella ja rakentaa Musiikin kuunteluun tarkoitettu sovellus
Responsiivinen verkkosivusto (mobiili ja työpöytä) Se pitää suunnitella ja rakentaa Hei, Pyytäisin tarjousta mobiilisovellukselle, joka tulisi sekä iOS että Android pohjalle. Sovellus olisi varauspalvelu, jossa pystyy vertailemaan eri palvelujen tarjoajia(yrityksiä) sijainnin, hinnan ja arvostelujen perusteella. Sovelluksen sisäänkirjautuminen tapahtuisi sähköpostilla. Jokainen käyttäjä luo oman profiilin sovellukseen. Sovellus olisi ilmainen ladata app storesta sekä google play- kaupasta. Käyttäjätilissä tulisi olla myös Visa/Mastercard maksutoiminnot. Sovellus olisi yhteydessä taustajärjestelmään, joka pystyttäisiin asentamaan jokaiselle yrityksel...
Responsiivinen verkkosivusto (mobiili ja työpöytä) Se pitää suunnitella ja rakentaa Hei, Pyytäisin tarjousta mobiilisovellukselle, joka tulisi sekä iOS että Android pohjalle. Sovellus olisi varauspalvelu, jossa pystyy vertailemaan eri palvelujen tarjoajia(yrityksiä) sijainnin, hinnan ja arvostelujen perusteella. Sovelluksen sisäänkirjautuminen tapahtuisi sähköpostilla. Jokainen käyttäjä luo oman profiilin sovellukseen. Sovellus olisi ilmainen ladata app storesta sekä google play- kaupasta. Käyttäjätilissä tulisi olla myös Visa/Mastercard maksutoiminnot. Sovellus olisi yhteydessä taustajärjestelmään, joka pystyttäisiin asentamaan jokaiselle yrityksel...
Responsiivinen verkkosivusto (mobiili ja työpöytä) Se pitää suunnitella ja rakentaa Hei, Pyytäisin tarjousta mobiilisovellukselle, joka tulisi sekä iOS että Android pohjalle. Sovellus olisi varauspalvelu, jossa pystyy vertailemaan eri palvelujen tarjoajia(yrityksiä) sijainnin, hinnan ja arvostelujen perusteella. Sovelluksen sisäänkirjautuminen tapahtuisi sähköpostilla. Jokainen käyttäjä luo oman profiilin sovellukseen. Sovellus olisi ilmainen ladata app storesta sekä google play- kaupasta. Käyttäjätilissä tulisi olla myös Visa/Mastercard maksutoiminnot. Sovellus olisi yhteydessä taustajärjestelmään, joka pystyttäisiin asentamaan jokaiselle yrityksel...
Startup-yrityksemme etsii mobiilikehitystyötä. Sinulla on halutessasi mahdollisuus päästä myös osakkaaksi. Kansainvälistymissuunnitelmamme ovat ripeydestään ja laajuudestaan huolimatta useamman ulkopuolisen tahon mielestä uskottavia. Meillä on hyvät perusteet uskoa yrityksemme liikevaihdon nousevan nopeasti seitsennumeroiseksi. Kehityksen on tarkoitus tapahtua HTML5-pohjalta, minkä jälkeen sovellus portataan eri alustoille. Ensimmäisen version tultua valmiiksi meillä on runsaasti jatkokehitystä valmiiksi määriteltynä. Arvostamme osaamista, mielenkiintoa ja kokemusta sekä iOS:stä että Androidista sekä palvelinkehityksestä. Toimivien käyttöliittymä...
Mobiiliapplikaatio Android & tiedot liitteessä.
Mobiiliapplikaatio Android & tiedot liitteessä.
Mobiiliapplikaatio Android & tiedot liitteessä.
haluan yksinkertaisen android app;in mobiililaitteita varten jossa on vain logo, videokuva ja chatroom, katso sivu. minä streamaan live videoa nettiin 24/7 rtmp formaatissa
Haluaisin mobiili sovelluksen/pelin joka toimii Androidilla sekä iphonella, mutta toinenkin riittää. Sovellus/peli voisi olla yksinkertainen esim. jos se on peli niin joku missä hahmo hyppii ja väistelee jotain tai jotain sen tapaista. Pelissä pitäisi olla mainokset, jotka saa pois ostamalla pelin kokoversion.
Haluaisin yksinkertaisen Android peli tai sovelluksen, josta voisi tienata hieman rahaa.
Haluaisin yksinkertaisen mobiili pelin, kuten Flappybird, Amazing Brick tai muu vastaava josta voisi tienata hieman rahaa.
Haluaisin mobiili sovelluksen/pelin joka toimii Androidilla sekä iphonella, mutta toinenkin riittää. Sovellus/peli voisi olla yksinkertainen esim. jos se on peli niin joku missä hahmo hyppii ja väistelee jotain tai jotain sen tapaista. Pelissä pitäisi olla mainokset, jotka saa pois ostamalla pelin kokoversion.
Bi sakal da se slusneme (bidejki i dvajcata sme od MK) i da se dogovorime za programiranje na edna Android App za kolku vreme ke ja programiras i kolku ke me kosta. 076 890 388
I NEED SOME ONE TO DEVELOPE TEENPATTI APP FOR ME SAME LIKE OCTRO TEEN PATTI IT IN PLAY STORE Teen Patti Card Game
Ich plane den Aufbau einer mobilen Non-Custodial-Plattform für digitale Token-Transaktionen auf iOS und Android samt Backend. Die Software arbeitet rein mit Tokens, keine Fiat-Abwicklung – diese läuft ausschließlich über angebundene Partner. Im Erstgespräch erwarte ich: • Einen Architekturvorschlag für Solana, inklusive Wallet-Handling und Monitoring-Logik • Empfehlungen zum Rollenmodell Admin → Distributor → Shop → Endkunde • Technisches Setup für eine Self-Custody Wallet mit biometrischen Sicherheitsfunktionen • Ablauf für QR-basierte Token-Überweisungen zwischen den Rollen • Konzept für automatische Token-Klassifizierung (Clean / Unverified) und Audit-Trail • Grobe Au...
...palette, typeface and symbol; they all need to stay. What I need now is a fresh, modern-sleek rework that tidies the geometry, improves balance and translates perfectly to today’s screens. The job has two parts: • Redesign the main logo while preserving the existing colours, font style and icon/symbol. • Derive a clean, square app icon that remains instantly recognisable at small sizes on iOS and Android. Please supply the final artwork in editable vector (AI/SVG), high-res PNG with transparent background, standard favicon, and the full set of mobile launcher sizes. Files should be layered, CMYK and RGB where appropriate, and ready for print or digital deployment. I’ll provide the current logo files as soon as we start, and I’m happy to give quick...
I’m building a subscription-based pharmacy ecommerce solution that each client pharmacy can brand as its own. The first release must be a full-featured, responsive web storefront (the platform choice I selected), with the architecture kept clean so native iOS and Android apps can be added later without rewriting core logic. Three user roles will live in the same multitenant codebase: • Customers – browse, search, filter products, upload prescriptions and track every order step. • Pharmacy Staff – manage inventory, validate prescriptions, prepare shipments and chat with customers. • Admins – create pharmacy accounts, set pricing rules, view analytics and handle user permissions. For the customer side in particular, these functions are no...
Project Request – React Native App (iOS & Android) Hello, I would like to develop a mobile application using React Native for both iOS and Android. Project Overview The app will allow users to download videos and audio from social media platforms. Main Requirements Develop the mobile app using React Native. The app should support downloading from social media platforms (such as Instagram, TikTok, Twitter/X, YouTube, etc.). Set up and configure a backend API on my server. Install and configure yt-dlp on my server and connect it to the API. Connect the mobile app to the API for fetching and downloading media. Design I already have the design files created using Google AI Studio. The files are in TSX format. The app consists of 3 main screens: Downloa...
I need a clean, fully-working React Native development environment configured on my Windows machine so I can build and test for both Android and iOS. The goal is to finish with everything installed, verified, and documented so I can open a terminal, type one command, and see a Hello World app running on an Android emulator and an iOS build artifact generated through a reliable workflow. Please handle every step—from installing the correct Node version, JDK, Android Studio, and SDKs, to configuring environment variables, Gradle, and the React Native CLI. Because iOS compilation cannot run natively on Windows, I also need you to set up (or clearly guide me through) a workable solution such as Expo, EAS Build, or another cloud-based build service that lets me produ...
I need an end-to-end build for an emotional-support application that will run natively on both iOS and Android. The core experience centres on real-time connection: users must be able to text-chat with a support professional and, when they choose, upgrade seamlessly to voice or video calls by purchasing in-app credits. All communication features have to feel instant, private, and secure. Here is the workflow I have in mind. A user signs in, sees available listeners with their current status, and begins a text conversation. A credit counter should appear unobtrusively, allowing the user to switch to voice or video without leaving the chat screen. Apple and Google in-app purchase SDKs will handle the recharge process, so please allow for storefront integration, receipt validation, an...
Quero lançar um aplicativo que combine rede social com serviços específicos para bares e restaurantes. A meta é disponibilizar uma primeira versão funcional (MVP) pronta para testes internos em Android e iOS. Funcionalidades essenciais • Perfil do usuário – cadastro, foto, bio curta e preferências. • Mensagens privadas – chat individual entre frequentadores. • Criar mesas – o usuário abre uma mesa virtual, define número de lugares e convida amigos ou deixa pública para quem estiver perto entrar. Fluxo básico esperado 1. Usuário faz login ou cadastro rápido. 2. Cria ou entra em uma mesa ativa no estabelecimento. 3. Conversa por mensagens privadas com ou...
...mobile app built in Flutter that now needs two things at once: a smooth migration to React Native and a fully-featured AI layer. The current codebase performs “average”—solid, but far from the speed, maintainability, and user delight I want to reach. Here’s what I need from you: • First, review the existing Flutter project and outline a clean, low-risk migration path that keeps both iOS and Android parity. • While migrating, weave in a new AI layer that boosts user experience, adds meaningful functionality, and sharpens overall performance. I’m interested in API-based models that support chat-style assistance and data-driven recommendations; prompt design and runtime optimisation will be part of the job. • Once the React Native b...
Necesito desarrollar tres aplicaciones móviles en Flutter (iOS y Android) que trabajen bajo la misma base de datos y panel de administración: 1. App Clientes El usuario final debe poder: • Crear cuenta con email, Apple ID o Google • Buscar barberos a domicilio o barberías cercanas mediante geolocalización en tiempo real • Reservar la cita seleccionando fecha, hora y servicio • Pagar con tarjeta a través de Stripe; la plataforma retiene 5 % y el resto va directo al profesional o barbería • Calificar y dejar reseñas cuando la cita termine • Consultar historial completo de servicios y pagos 2. App Barberos Independientes El barbero gestionará: • Onboarding de Stripe Connect (c...
...all data from each Yandex account and import it into the chosen service, preserving folder structure, labels, contacts and calendars. • Keep mail flow uninterrupted during the cut-over; update MX, SPF, DKIM and DMARC records when we flip the switch so nothing lands in spam or bounces. • Set up the ten fresh accounts on every device we use – macOS and Windows laptops plus a mix of iPhones and Android phones – via remote access or step-by-step guidance. • Verify post-migration that messages send/receive correctly and calendars sync across devices. Acceptance criteria • 100 % of historical email, contacts and events visible in the destination accounts. • Test messages delivered without delay or bounce. • All devices syncing with...
...flow stays simple: choose pickup and destination, see the fare, and get paired with the nearest available driver. Two extra touches are essential: riders must be able to schedule a trip in advance and cancel it from inside the app if plans change. Everything else (pricing rules, surge logic, etc.) can live in an admin web panel you create alongside the apps. I’m happy with either native iOS/Android or a cross-platform stack such as Flutter or React Native; Google Maps (or Apple Maps on iOS) should power the driver’s navigation. The project wraps when I have: • Rider app APK/IPA ready for store submission • Driver app with real-time request handling and map guidance • Web or in-app admin dashboard for trips, drivers, and basic fare settings &bul...
I’m looking for an experienced web & mobile app developer to build a high-performance website and iOS/Android app for a hair salon. I already have a one-page website, a premium ThemeForest theme, and an existing site (). I need a full salon website (using the current theme or a new one), iOS & Android apps, an online shop for products and services (WooCommerce), a client booking system, and a modern, clean UI/UX with fast loading as a top priority. Features should include user accounts, appointment booking, push notifications, online payments, an admin panel for managing bookings/services/products, GDPR compliance, SEO-friendly and mobile-first design, and publishing to the App Store and Google include relevant past projects, your recommended tech stack
...down, but also support optional online features for some customers (e.g., cloud reporting, multi-site reporting, remote backups, and online ordering integrations). In short: offline by default, online when needed. Two product modes in one codebase A) Hospitality (Restaurant / Bar) Windows POS touchscreen: tables & floorplan, open tickets, split/merge/move, void/refund, discounts, VAT/tax rules Android handheld ordering (PWA or native): fast ordering per table, live sync with POS + KDS, offline queue + retry KDS (Kitchen Display System): new → preparing → ready, station routing (kitchen/bar), consolidated view Backoffice: products/categories/modifiers, tableplan editor, users/roles, reports, import/export (CSV/Excel) B) Retail Checkout flow: barcode scan, quan...
We hired somebody, they tried to make meta and google ads account. Wasted our 15 days and still didn't start campaign. Also ran with 8k after break the contract. So we are harrased. We need someone who can start runnings ads from tomorrow. No time to waste. Start straight. We will pay your fees in parts. Not all upfront.
Necesito desarrollar una aplicación nativa para Android y iOS cuya función principal sea la autenticación y el acceso mediante Microsoft Active Directory. Una vez que el usuario inicie sesión, la app debe conservar el token y redirigirlo a nuestro portal web interno, adjuntando dicho token para mantener la sesión abierta en el navegador in-app. Además del inicio de sesión, requiero: • Configuración de notificaciones push (Firebase Cloud Messaging o equivalente en iOS) para avisar al usuario sobre eventos clave del portal. • Manejo seguro del token (almacenamiento, renovación y cierre de sesión). • Pantalla de carga sencilla y flujo claro de “logueo → validación → redirecc...
Simple Private Booking App for Family Sports Facilities (Android / iOS) Project Overview We need a very simple, private booking app for family use only (max 20 users) to manage bookings for a football field and padel court. This is not a public app. No payments. No social features. >> Core Requirements (MVP) Users & Access Invite-only login (email or phone) Only admin can add/remove users >> Booking Features Calendar view (day/week) >> Two facilities: Football Field Padel Court >> Create booking: Date Start time / End time Facility Prevent double bookings Edit / cancel bookings >> Roles Family User: create/edit/cancel own bookings Facility Manager: View all bookings Receive notifications on new/updated bookings Admin: Full a...
The project is to create a fully functional mobile application focused on gym-related use cases that will be released on both iOS and Android. I will provide the core concept and branding assets; you will turn them into a polished, store-ready product. Key expectations • Native or high-performance cross-platform codebase that delivers identical user experience on iPhone and Android phones. • Clean, modern UI that fits typical fitness / workout flows. • End-to-end build: architecture, coding, basic QA, and packaging for App Store and Google Play submission. • Clear, well-commented source code plus a concise setup/readme so I can maintain the project internally. Preferred stack React Native, Flutter, or Swift + Kotlin are all acceptable as long a...
...latest versions typically require Java 24 (Temurin distribution), though older guides (v1.88) used Java 11. • Databases: PostgreSQL or FoundationDB/DynamoDB. • Firebase Cloud Messaging (FCM)/APN: For push notifications on Android and iOS devices. • Caching: Redis for session and message caching. • Build Tool: Apache Maven for compiling the source code. • External Service Dependencies For a fully functional "Signal" experience, you must configure external APIs in your config .yml: • SMS/Voice: FCM/Twilio for user registration OTPs. • Push Notifications: Firebase (FCM) for Android and APNs for iOS. • Storage: AWS S3 for profile photos and message attachments. • Spam Protection: Google reCAPTCHA for registration secur...
...g adjustments are fair game as long as they keep the codebase neat and maintainable. • Build, sign and upload final releases to both Google Play Console and Apple App Store Connect, passing their standard checks and review. Typical tools in play will be Flutter 3.x, Android Studio, Xcode, App Store Connect, Play Console and whichever network debugging utilities you prefer. Acceptance criteria 1. Single codebase compiles with flutter build apk and flutter build ios without errors. 2. Release builds on physical Android and iOS devices show full network functionality identical to the dev build. 3. Apps appear in both stores, marked Ready for Sale, with basic screenshots and metadata in place. 4. I receive final IPA, AAB and source repo updates reflecting ever...
I need a mobile app prototype for both iOS and Android. The app will use satellite view to allow players to create a city by uploading photos of empty tiles. Key requirements: - City creation interface Ideal skills and experience: - Mobile app development - UI/UX design - Experience with satellite view integration
...أو لا. أحتاج إلى شريك تقني يقود المشروع من الصفر: هندسة البنية الخلفية، تصميم UI/UX، البرمجة، ثم الاختبار والتسليم النهائي مع الكود المصدري. التطبيق يجب أن يدعم العربية والإنجليزية، ويُصمَّم وفق مبدأ offline-first مع مزامنة فورية حال توفر الشبكة ليظل صالحاً للمستخدمين في المناطق منخفضة الاتصال. أتطلع إلى بنية قوية قابلة للتوسّع تخدم ملايين المستخدمين مستقبلاً، مع إمكان إضافة منصّات أخرى (Android والويب) لاحقاً دون إعادة كتابة جوهر النظام. التجربة التعليمية ينبغي أن تتضمن وسائط متعددة، اختبارات تفاعلية، تتبّع تقدّم، وإشعارات ذكيّة تعيد المستخدم إلى المحتوى المناسب. أفضل اعتماد تقنيات حديثة مثل SwiftUI على الواجهة وCore Data/Realm لطبقة التخزين، مع واجهة إدارة مبنية على REST أو GraphQL لضمان المرونة. أقدّم لك رؤية مفصّلة للمحتوى والخصائص، و...
I'm looking for an experienced mobile app developer to build a social networking application for Android. Key Requirements: - Design and develop an intuitive and engaging user interface - Implement secure user authentication and profile management - Enable features such as friend connections, messaging, and content sharing - Ensure app performance is optimized and free from bugs - Integrate social media sharing options Ideal Skills and Experience: - Proven experience in developing social networking apps - Strong proficiency in Android development (Java/Kotlin) - Expertise in UI/UX design for mobile applications - Knowledge of backend technologies and database management - Familiarity with API integration and third-party services Please provide a portfolio showcasing ...
...fronts—website, mobile app, and an AI-powered receptionist chatbot dedicated to appointment scheduling. For the web side, I typically lean toward modern stacks such as React, or Vue on the front end and Node, Django or Laravel on the back; however, I’m open to whatever you do best as long as performance, security and clean code are non-negotiable. Mobile work will cover both iOS and Android. Cross-platform solutions like Flutter or React Native are welcome, but native Swift/Kotlin skills are equally valuable if a project demands it. The AI receptionist must integrate with common calendar systems (Google, Outlook, iCloud, etc.) and handle conversational booking, rescheduling and basic FAQs. Experience with Dialogflow, Rasa, LangChain or direct OpenAI API calls will...
I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-fre...
I’ve just finished deploying a new Android mobile application and everything appeared to go smoothly—until I tried to launch it. Right after installation the app attempts to talk to the backend and immediately throws a server error. The APK itself installs without complaint; the trouble starts only once the first request is sent. I need someone to dive in, locate the root cause on the server side, and implement a clean fix so the app can connect reliably every time. Access to the server, source code, and crash logs is ready for you as soon as we agree to move forward. Please bring experience with common Android back-end stacks (Node, PHP, Java, or similar) and a methodical debugging approach. Once resolved, I’ll confirm the build installs and runs error-fre...
I'm looking to build an Android social media app with the following features: - User Profiles - Messaging - Photo and Video Sharing Ideal Skills and Experience: - Experience with Android app development - Strong knowledge in building social media features - Proficient in UI/UX design for engaging user experience - Backend development skills to handle messaging and media sharing functionalities Please provide examples of previous similar work.
Using Kotlin for Android Development? No worries, here are some tips and tricks that we've compiled for you.