PWA 與 Service Worker

2017/1/23
@ F2E&RGBA Meetup

Transcript

1. PWA & Service Worker Anna Su 1
2. Anna Su 獮ᒒૡ纷䒍 綮ਮ螸 PIXNET 2 About me
3. Why PWA? What's PWA? What's Service Workers Making A Service Worker 3 Agenda
4. PWA 4 Why
5. 5 What’s Wrong?
6. What’s Wrong with Web ? Slow mobile network User-unfriendly 6
7. What’s Wrong with Web ? Slow mobile network 7 53% 3s
8. What’s Wrong with Web ? User-unfriendly 8 Splash Screen push notifications
9. What’s Wrong with App ? High cost Difficultly share 9
10. What’s Wrong with App ? High cost 10 iOS Windows Android
11. What’s Wrong with App ? Difficultly share 11 from Alex Russell in Chrome Dev Summit 2015 1 month 25 100+ App Web
12. What’s Wrong with App ? 12 Alex Russell in Chrome Dev Summit 2015 ignite online & comScore
14. PWA 14 What’s Progressive Web App
15. 15 Reliable Fast Engaging Reliable
16. What’s PWA ? Reliable 16
17. What’s PWA ? Fast 17
18. What’s PWA ? Engaging 18
19. Chrome Dev Summit 2014 [github] How does the PWA looks like 19
21. Service Workers 21 What’s
22. 22 What’s Service Workers ?
23. What’s Service Workers ? 23
24. 24 What’s Service Workers ?
25. Service Workers Lifecycle 25
26. Making A Service Worker 26
27. 27 Making A Service Workers design @Don
28. simple-pwa-demo PWA To-Do List with Vanilla JS (sw-precache) (sw-precache-webpack-plugin) PWA To-Do List with React/Redux 28 @Octocat Making A Service Workers code review -Jerry Hong
29. Getting Started with Service Workers 29
30. Registering the Service Worker Setting up the Default Cache Clearing Old Cache Handling Fetch Requests 30 Making A Service Workers
31. 31 Register install activate fetch Making A Service Workers Register Registering the Service Worker
32. Registering the Service Worker 32 <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script> index.html <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script> <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script> <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script> <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script> <script> if ('serviceWorker' in navigator) { navigator.serviceWorker.register('/sw.js') .then(reg => console.log('SW registered!', reg)) .catch(err => console.log('Error!', err)); } </script>
33. 33 Register install activate fetch Making A Service Workers Register Service Worker Lifecycle install activate fetch
34. Getting Started with Service Workers 34 // install self.addEventListener('install', event => { console.log('installing…'); }); // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); }); // fetch self.addEventListener('fetch', event => { console.log('now fetch!'); }); sw.js
35. 35 Register install activate fetch Setting up the Default Cache Making A Service Workers
36. Setting up the Default Cache 36 sw.js const filesToCache = [ '/', '/assets/images/btn_check.png', '/assets/images/btn_del.png', '/assets/images/ic_add.png', '/assets/images/logo_todo.png', '/src/main.css', '/index.html' ]; const cacheName = 'todolist-v1';
37. Setting up the Default Cache 37 sw.js // install self.addEventListener('install', event => { console.log('installing…'); event.waitUntil( caches.open(cacheName).then(cache => { // console.log('Caching app ok'); return cache.addAll(filesToCache); }) ); }); // install self.addEventListener('install', event => { console.log('installing…'); event.waitUntil( caches.open(cacheName).then(cache => { // console.log('Caching app ok'); return cache.addAll(filesToCache); }) ); }); // install self.addEventListener('install', event => { console.log('installing…'); event.waitUntil( caches.open(cacheName).then(cache => { // console.log('Caching app ok'); return cache.addAll(filesToCache); }) ); }); // install self.addEventListener('install', event => { console.log('installing…'); event.waitUntil( caches.open(cacheName).then(cache => { // console.log('Caching app ok'); return cache.addAll(filesToCache); }) ); }); // install self.addEventListener('install', event => { console.log('installing…'); event.waitUntil( caches.open(cacheName).then(cache => { // console.log('Caching app ok'); return cache.addAll(filesToCache); }) ); });
38. 38 Register install activate fetch Clearing Old Cache Making A Service Workers
39. ` 39 // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); event.waitUntil( caches.keys().then(function(cacheNames) { var promiseArr = cacheNames.map(function(item) { if (item !== cacheName) { // Delete that cached file return caches.delete(item); } }) return Promise.all(promiseArr); }) ); // end e.waitUntil }); sw.js // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); event.waitUntil( caches.keys().then(function(cacheNames) { var promiseArr = cacheNames.map(function(item) { if (item !== cacheName) { // Delete that cached file return caches.delete(item); } }) return Promise.all(promiseArr); }) ); // end e.waitUntil }); // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); event.waitUntil( caches.keys().then(function(cacheNames) { var promiseArr = cacheNames.map(function(item) { if (item !== cacheName) { // Delete that cached file return caches.delete(item); } }) return Promise.all(promiseArr); }) ); // end e.waitUntil }); // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); event.waitUntil( caches.keys().then(function(cacheNames) { var promiseArr = cacheNames.map(function(item) { if (item !== cacheName) { // Delete that cached file return caches.delete(item); } }) return Promise.all(promiseArr); }) ); // end e.waitUntil }); // activate self.addEventListener('activate', event => { console.log('now ready to handle fetches!'); event.waitUntil( caches.keys().then(function(cacheNames) { var promiseArr = cacheNames.map(function(item) { if (item !== cacheName) { // Delete that cached file return caches.delete(item); } }) return Promise.all(promiseArr); }) ); // end e.waitUntil });
40. 40 Register install activate fetch Handling Fetch Requests Making A Service Workers
41. 41 <script> const list = document.getElementById('list'); // 矑茐咳蝑 request fetch('http://localhost:3000/people') .then(res => { return res.json(); }) .then(json => { list.innerHTML = json .map(item => `<li>${item.name}</li>`) .join(''); }) </script> index.html Handling Fetch Requests
42. Handling Fetch Requests 42 self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); sw.js self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); }); self.addEventListener('fetch', event => { event.respondWith( caches.match(event.request) .then(function(response) { return response || fetch(event.request) .then(res => caches.open(dataCacheName) .then(function(cache) { cache.put(event.request, res.clone()); return res; }) ); }) ); });
45. Learn more? 45
51. 傶Ջ讕襑ᥝ PWA? Ջ讕ฎ PWA? Service Work 墋Օ Registering the Service Worker Setting up the Default Cache Clearing Old Cache Handling Fetch Requests 䋿֢ PWA To-Do List - 氥纈盃旰Ԫ殻竃㻌 51 2017 iT 螸䒻盜裡Ո搴෈ᒍ
52. ref https://huangxuan.me/pwa-qcon2016/#/ https://medium.com/lets-grow-business/why- progressive-web-app-31dd11d9a925#.zb3d2m1jv https://igniteonline.com.au/why-progressive-web- apps-beat-native-apps-hands-down/ 52
53. ref images http://ninetailsfoxchan.deviantart.com/art/Sad- Png-by-NFC-304044918 http://mrmen.wikia.com/wiki/File:Mr._All- Goes_Wrong.PNG https://goo.gl/022j4n https://www.labnol.org/software/chrome-offline- dinosaur-game/28781/ 53
54. Thanks 眤蘛肔肯 54