我是chrome扩展的新手,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,即使用户关闭该扩展(而不是浏览器),该计数器扩展也一直在计数,并且想要进行一个简单的测试以查看是否可以弄清楚如何使用背景文件。下面是我尝试创建的功能,该功能每次用户单击选项卡(在我的扩展程序之外)时都会激活,并且当用户单击5个选项卡时,警报就会响起。我不知道为什么这行不通。
background.js:
var counter = 0;
chrome.browserAction.onClicked.addListener(function(tab){
counter++;
if (counter == 5) {
alert("Hi");
}
});
manifest.json:
{
"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"
}
}
最佳答案
以下代码对我有用。
manifest.json
{
"name": "Popping Alert",
"description": "http://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");
}
});
如果这行不通,您可以共享相关代码或清楚地陈述问题说明吗?