goofmint’s gists

## index.json
"prefer_related_applications": true,
"related_applications": [
  {
  "platform": "play",
  "id": "com.google.samples.apps.iosched"
  }
]

## index.json
"related_applications": [
  {
  "platform": "play",
  "id": "com.google.samples.apps.iosched"
  }
]

## index.js
window.addEventListener('beforeinstallprompt', function(e) {
  e.userChoice.then(function(choiceResult) {
    if(choiceResult.outcome == 'dismissed') {
      console.log('User cancelled home screen install');
    }
    else {
      console.log('User added to home screen');
    }
  });
});

## index.js
btnSave.addEventListener('click', function() {
  if(deferredPrompt !== undefined) {
    // インストールプロンプト表示
    deferredPrompt.prompt();
    deferredPrompt.userChoice
      .then(function(choiceResult) {
      // キャンセルされた場合
      if(choiceResult.outcome == 'dismissed') {
        console.log('User cancelled home screen install');
      } else {

## index.js
var deferredPrompt;

window.addEventListener('beforeinstallprompt', function(e) {
  e.preventDefault();

  // ここでプロンプトを変数に入れておく
  deferredPrompt = e;

  return false;
});

## index.json
"start_url": "index.html?launcher=true"

## index.json
"start_url": "/?utm_source=homescreen"

## index.json
{
  "display": "standalone",
  "short_name": "hifiveTodo",
  "name": "hifiveTodo",
  "orientation": "portrait",
  "icons": [
    {
      "src": "launcher-icon-1x.png",
      "type": "image/png",
      "sizes": "48x48"

## index.html
<link rel="manifest" href="/manifest.json">

## index.js
self.addEventListener('install', e => {
  // インストール時に実行
  e.waitUntil(
    caches.open('mismith').then(cache => {
      return cache.addAll([
        '/',
        '/client.js',
        '/style.css'
      ])
      .then(() => self.skipWaiting());