Fired when the system changes to an active, idle or locked state. The event listener is passed a string that has one of three values:
idle.setDetectionInterval()
.
browser.idle.onStateChanged.addListener(listener)
browser.idle.onStateChanged.removeListener(listener)
browser.idle.onStateChanged.hasListener(listener)
Events have three functions:
addListener(callback)
Adds a listener to this event.
removeListener(listener)
Stop listening to this event. The
listener
argument is the listener to remove.
hasListener(listener)
校验是否
listener
is registered for this event. Returns
true
if it is listening,
false
否则。
callback
Function that will be called when this event occurs. The function will be passed the following arguments:
newState
idle.IdleState
. The new idle state.
BCD tables only load in the browser
function newState(state) {
console.log(`New state: ${state}`);
}
browser.idle.onStateChanged.addListener(newState);
注意：
This API is based on Chromium's
chrome.idle
API. This documentation is derived from
idle.json
in the Chromium code.
Microsoft Edge compatibility data is supplied by Microsoft Corporation and is included here under the Creative Commons Attribution 3.0 United States License.
最后修改： , 由 MDN 贡献者