如何检测连接到电话的充电器是否正在为电话充电？

Question

我想知道手机上的充电器是不是在给手机充电。用例是，如果您插入充电器，但忘记打开充电，您应该得到一个通知。

Answer 1

BatteryManager以包含充电状态的粘性意图广播所有电池和充电详细信息。检查BatteryManager.BATTERY_STATUS_FULL。

IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
Intent batteryStatus = context.registerReceiver(null, ifilter);

// Are we charging / charged?
int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1);
boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||
                     status == BatteryManager.BATTERY_STATUS_FULL;

// How are we charging?
int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB;
boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC;

欲了解更多详情，请访问：https://developer.android.com/training/monitoring-device-state/battery-monitoring