Post messages to a user's system tray using the extensions Notifications API. Start by declaring the "notifications" permission in the manifest.json.
{ "name": "Drink Water Event Popup", ... "permissions": [ "notifications", ], ... } Once the permission is declared, display a notification by calling notifications.create(). The following example is taken from the Drink water event popup sample. It uses an alarm to set a reminder to drink a glass of water. This code shows the triggering of the alarm. Follow the previous link to explore how this is set up.
chrome.alarms.onAlarm.addListener(() => { chrome.action.setBadgeText({ text: '' }); chrome.notifications.create({ type: 'basic', iconUrl: 'stay_hydrated.png', title: 'Time to Hydrate', message: "Everyday I'm Guzzlin'!", buttons: [{ title: 'Keep it Flowing.' }], priority: 0 }); }); This code creates a notification on macOS like the following.
