我是Chrome扩展程序的新手,似乎无法弄清楚背景概念是如何工作的.我正在构建一个计数器扩展,即使用户关闭扩展(但不是浏览器),并且想要做一个简单的测试,看看我是否可以弄清楚如何使用后台文件.下面是我尝试创建一个功能,每当用户点击选项卡(我的扩展名之外)时激活该功能,当他们点击5个选项卡时,警报就会响起.我无法弄清楚为什么这不起作用.
background.js：
var counter = 0;
chrome.browserAction.onClicked.addListener(function(tab){
counter++;
if (counter == 5) {
alert("Hi");
}
});
manifest.json的：
{
"name": "Hello World!","description": "My first packaged app.","version": "0.1","permissions": ["tabs","http://*/*"],"manifest_version":2,"content_scripts": [ {
"js": [ "jquery-1.9.1.js","myscript.js" ],"matches": [ "http://*/*","https://*/*"]
}],"background": {
"scripts": [
"background.js"
]
},"browser_action": {
"default_title": "10,000 Hours","default_icon": "icon16.png","default_popup": "index.html"
},"icons": {
"16": "icon16.png","48": "icon48.png","128": "icon128.png"
}
}
解决方法
它通过以下代码为我工作.
的manifest.json
{
"name": "Popping Alert","description": "https://stackoverflow.com/questions/15194198/background-js-not-working-chrome-extension","background": {
"scripts": [
"background.js"
]
},"version": "1","manifest_version": 2,"browser_action": {
"default_title": "Click Me"
}
}
background.js
var counter = 0;
chrome.browserAction.onClicked.addListener(function (tab) {
counter++;
if (counter == 5) {
alert("Hey !!! You have clicked five times");
}
});
