BatteryManager: levelchange Ereignis
Limited availability
This feature is not Baseline because it does not work in some of the most widely-used browsers.
Sicherer Kontext: Diese Funktion ist nur in sicheren Kontexten (HTTPS) in einigen oder allen unterstützenden Browsern verfügbar.
Das levelchange
-Ereignis des BatteryManager
-Interfaces wird ausgelöst, wenn die level
-Eigenschaft der Batterie aktualisiert wird.
Syntax
Verwenden Sie den Ereignisnamen in Methoden wie addEventListener()
oder setzen Sie eine Event-Handler-Eigenschaft.
js
addEventListener("levelchange", (event) => { })
onlevelchange = (event) => { }
Ereignistyp
Ein generisches Event
.
Beispiel
HTML
html
<div id="level">(battery level unknown)</div>
<div id="stateBattery">(charging state unknown)</div>
JavaScript
js
navigator.getBattery().then((battery) => {
battery.onlevelchange = () => {
document.querySelector("#level").textContent = battery.level;
if (battery.charging) {
document.querySelector("#stateBattery").textContent = `Charging time: ${
battery.chargingTime / 60
}`;
} else {
document.querySelector("#stateBattery").textContent =
`Discharging time: ${battery.dischargingTime / 60}`;
}
};
});
Spezifikationen
Specification |
---|
Battery Status API # ref-for-dfn-levelchange-1 |
Battery Status API # dom-batterymanager-onlevelchange |
Browser-Kompatibilität
Report problems with this compatibility data on GitHubdesktop | mobile | |||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
levelchange event |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.