js控制电池

js控制电池

1. 判断设备是否在充电

   navigator.getBattery().then(function(battery){ ???if(battery.charging) { ???????alert("电池正在充电"); ???}else { ???????alert("电池没有充电"); ???}})

2. 获取设备电量

   navigator.getBattery().then(function(battery){ ???alert("电池电量" + battery.level * 100 + "%");})

3. 电池状态监听器

   navigator.getBattery().then(function(battery){ ???battery.addEventListener("chargingchange", function() { ???????console.log("电池状态：", battery.charging); ???}) ???battery.addEventListener("levelchange", function() { ???????console.log("电池电量：", battery.level * 100 + "%"); ???}) ???battery.addEventListener("chargingtimechange", function() { ???????console.log("电池充满还需：", battery.chargingTime + "秒"); ???}) ???battery.addEventListener("dischargingtimechange", function() { ???????console.log("电池电量还能支撑：", battery.dischargingTime + "秒"); ???})})

js控制电池

原文地址：https://www.cnblogs.com/ye-hcj/p/10354063.html