Google chrome Chrome扩展：如何从popup.js调用报警
我在做chrome扩展。单击popup.html中的按钮，调用scote从background.js调用alarm ffrom popup.js：Google chrome Chrome扩展：如何从popup.js调用报警,google-chrome,google-chrome-extension,Google Chrome,Google Chrome Extension,我在做chrome扩展。单击popup.html中的按钮，调用scote从background.js调用alarm ffrom popup.js： document.addEventListener('DOMContentLoaded', function() { var checkPageButton = document.getElementById('checkPage'); checkPageButton.addEventListener('click', functio
document.addEventListener('DOMContentLoaded', function() {
var checkPageButton = document.getElementById('checkPage');
checkPageButton.addEventListener('click', function() {
//call alarm
chrome.runtime.sendMessage({greeting: "alert"}, function(response) {
//NONE response, why?
console.log(response.farewell);
alert("response:" + response.farewell);
});
document.getElementById('checkPage').innerHTML = "SET";
}, false);
}, false);
//alarm
chrome.runtime.onMessage.addListener(
function(request, sender, sendResponse) {
if (request.greeting == "alert"){
alert("alert alarm");
sendResponse({farewell: "goodbye"});
}
}
);
{
"name": "AlarmText",
"version": "0.0.1",
"manifest_version": 2,
"permissions": ["alarms", "http://my-url.com"],
"icons": { "128": "icons/icon128.png",
"64": "icons/icon64.png",
"32": "icons/icon32.png" },
"browser_action": {
"default_title": "Alarm test",
"default_popup": "popup.html"
},
"background": {
"scripts": ["background.js"],
"persistent": true
}
}
<!doctype html>
<html>
<head>
<title>popup</title>
<script src="popup.js"></script>
</head>
<body>
<div id="out">???</div>
<button id="checkPage">Refresh</button>
</body>
</html>
弹出窗口
???
刷新
怎么了？在call alarm:chrome.runtime.sendMessage（{greeting:“alert”}）中，函数（response）不是response您发送的
helloalert