This is a newer version with a bit more details and workarounds from this gist. Especially for Android R+.
I recommend to read the previous gist to get an idea about what I'm trying to achieve.
This note will be straight forward on commands to perform.
Some commands use zipalign and apksigner which are located in the build-tools of your Android SDK installation folder.
Mine are located in: ~/Library/Android/sdk/build-tools/34.0.0/.
| # I needed to automatically caputre screen of a book on an Android device | |
| # The process is to: `screenshot` then `swipe left` for some 1000+ times | |
| # This code can help performing those operations: | |
| # Assuming you have installed and configured `adb`, | |
| # and you are authenticated to execute `adb` commands on the device from a bash script: | |
| # Folder in the device to save screenshots | |
| SAVEDIR="/storage/emulated/0/Download/Book7" | |
| # Specify number of pages |
| /** | |
| go/enablement-skills-readiness | |
| Must refresh the page before run, as image src keeps changing | |
| **/ | |
| // Try & Error, this is the image by current index order: | |
| let targetImg = document.getElementsByTagName('img')[2].src | |
| // Buffer of image pixels, let’s take first row, 1000 pixels (actual needed 318 only) | |
| let pixels; |
| // you can write to stdout for debugging purposes, e.g. | |
| // console.log('this is a debug message'); | |
| function solution(S) { | |
| // write your code in JavaScript (Node.js 8.9.4) | |
| let maxLen = -1; | |
| let currentLen = 0; | |
| let charCount = 0; |
| /* Code to run in the browser console of `go/techcon-lightningtalks` */ | |
| let loadData = function() { | |
| // Array holding the data | |
| let data = Array(); | |
| // Keep track of `H2` elements | |
| let index = 1; | |
| // Keep track of pillars |
| package TEST; | |
| import com.vaadin.annotations.Theme; | |
| import com.vaadin.annotations.VaadinServletConfiguration; | |
| import com.vaadin.server.Page; | |
| import com.vaadin.server.VaadinRequest; | |
| import com.vaadin.server.VaadinServlet; | |
| import com.vaadin.shared.ui.colorpicker.Color; | |
| import com.vaadin.ui.CssLayout; | |
| import com.vaadin.ui.UI; |
| self.onactivate = function(event) { | |
| event.waitUntil( | |
| self.clients.claim().then(function() { | |
| var currentCacheName = CACHE_NAME + '-v' + CACHE_VERSION; | |
| return caches.keys().then(function(cacheNames) { | |
| return Promise.all( | |
| cacheNames.map(function(cacheName) { | |
| if (cacheName.indexOf(CACHE_NAME) == -1) { | |
| return; | |
| } |
| self.oninstall = function(event) { | |
| event.waitUntil( | |
| self.skipWaiting().then( | |
| caches.open(CACHE_NAME + '-v' + CACHE_VERSION).then(function(cache) { | |
| return cache.addAll(filesToCache); | |
| }) | |
| ) | |
| ); | |
| }; |
| "start_url": "../", |
| @JavaScript("vaadin://js/app.js") | |
| @Link(rel="manifest", href="VAADIN/manifest.json") | |
| public class MyUI extends UI { |
