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WEB APPCONS :
Large Over Head - Slower than Native Apps, Response-Request Flow
Stuck with JS – Client Side, JS is dynamic,limiting ability to optimze app
Less Control Over Computer Resources –
Not much offline support
Mobile App is best option than Mobile Website
Off Browser Limitation’s
NO SUPPORT FOR RECURRENCE USE
Cons :Platform Constrains
DOWNLAOD –INSTALL-USE
Limited App Download (Space War)
App Store :Deployment Limitation for Developers
App store not available in each country
NATIVE MOBILE APP
PROGRESIVE WEB APP (PWA)
BEST OF WEB + BEST OF APP = PWA
“A Progressive Web Apps is a web application which takes advantage of modern browser features and can be added to your homescreen, behaving just like a native application.”
Example
UNACADEMY
Features
Progressive - Works for every user, regardless of browser choice.
Responsive - Fits any form factor: desktop, mobile, tablet
Connectivity independent - Enhanced with service workers to work offline or on low /poor network
App-like - Feels like an app to the user, app-style interactions and navigation because it's built on the app shell model.
Fresh - Always up-to-date thanks to the service worker update process
Installable - Allows users to "keep" apps they find most useful on their home screen without the hassle of an app store.
SPLASH SCREEN
Instant Loading – Thanx to Service worker they are loaded via cache api.
Re-engageable - Makes re-engagement easy through features like push notifications.
Features
Discoverable - Is identifiable as an "application" thanks to W3C manifest and service worker registration scope, allowing search engines to find it.
Linkable - Easily share via URL, does not require complex installation
Safe - Served through HTTPSVia TLS (Transport Layer Security)TLS 1.0 = SSL 3.1
Web App Manifest
The Manifest for Web applications is a simple JSON file that gives you, the developer, the ability to control how your app appears to the user in the areas that they would expect to see apps (for example the device home screen)
n order for the app install prompts to display your app must:Have a valid Web App manifestBe served over HTTPS (see letsencrypt for a free certificate)Have a valid service worker registeredBe visited twice, with at least 5 minutes between visits
In order for the app install prompts to display your app must:
Have a valid Web App manifest
Be served over HTTPS
Have a valid service worker registered
Be visited twice, with at least 5 minutes between visits
SPLASH SCREEN
APP SHELL
Service WorkerScripts that run in background, seprate from page.
Respond to event.
Short Life Time.
IMPACT : From “ APP ONLY MODEL” to “Back to Web”
Development Framework
•Vanilla JS•React•Angular•Polymer•Express
Tools :
Manifest Chrome Manifest Creater
Manifest Validator
Service Worker
SW-Precache SW-Toolkit
Light House ( For PWA Validation)
Reference :Google Web Starter Kit
PWA by Mike Russel
www.addyosmani.com
Udacity Progressive Web App
Closing Notes :
Still is in infancy
But nice time to play around.
All Browser Support ( Waiting for Safari for Service Worker)
Twitter/abhishek5139190
www.abhishekmishra.me
Reach out to me @
Merry Christmas &
Happy New Year
THANK YOU
