Android获取手机电压，电流，电量，BatteryManager
//手机电流 BatteryManager mBatteryManager = (BatteryManager)getSystemService(Context.BATTERY_SERVICE); int energy = mBatteryManager.getIntProperty(BatteryManager.BATTERY_PROPERTY_CURRENT_NOW);
BroadcastReceiver batteryChangedReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
int rawlevel = intent.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);
//电池电量最大值
int scale = intent.getIntExtra(BatteryManager.EXTRA_SCALE, -1);
//电压
int intExtra = intent.getIntExtra(BatteryManager.EXTRA_VOLTAGE, -1)/1000;
if ((rawlevel >= 0) && (scale > 0)) {
//当前电量
mBatteryLevel = (rawlevel * 100) / scale;
Log.e("电量情况", mBatteryLevel + "");
} else {
mBatteryLevel = -1;
}
int status = intent.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);
if (status != -1) {
switch (status) {
case 0:
mPowerSource = "电池供电";
if (mBatteryLevel < powerlow) {// 低于电量下限值向平台发充电质量
Log.e(TAG, "onReceive: =======低电量==========" );
} else {
Log.e(TAG, "onReceive: =======未充电==========" );
}
break;
case BatteryManager.BATTERY_PLUGGED_AC:
mPowerSource = "交流供电";
Log.e(TAG, "onReceive: =======正在充电==========" );
if (mBatteryLevel > powerhigh) {// 充电的时候发现当前的电量高于上限向平台发送断电指令
Log.e(TAG, "onReceive: =======已充满，请断电!==========" );
}
break;
case BatteryManager.BATTERY_PLUGGED_USB:
mPowerSource = "USB供电";
Log.e(TAG, "onReceive: =======正在充电==========" );
if (mBatteryLevel > powerhigh) {
Log.e(TAG, "onReceive: =======已充满，请断电!==========" );
}
break;
}
}
}
};
Activity注册
// 定义电池电量更新广播的过滤器,只接受带有ACTION_BATTERRY_CHANGED事件的Intent IntentFilter batteryChangedReceiverFilter = new IntentFilter(); batteryChangedReceiverFilter.addAction(Intent.ACTION_BATTERY_CHANGED);// // 向系统注册batteryChangedReceiver接收器，本接收器的实现见代码字段处 registerReceiver(batteryChangedReceiver, batteryChangedReceiverFilter);
反注册
unregisterReceiver(batteryChangedReceiver);