Android电池电量检测

电池的信息，电压，温度，充电状态等等，都是由BatteryService来提供的。电池的这些信息是BatteryService通过广播主动把数据传送给所关心的应用程序。

应用如果想要接收到BatteryService发送出来的电池信息，则需要注册一个Intent为Intent.ACTION_BATTERY_CHANGED的BroadcastReceiver。

代码如下：

IntentFilter mIntentFilter = new IntentFilter();mIntentFilter.addAction(Intent.ACTION_BATTERY_CHANGED);registerReceiver(mIntentReceiver, mIntentFilter);

private BroadcastReceiver mIntentReceiver = new BroadcastReceiver() {@Overridepublic void onReceive(Context context, Intent intent) {// TODO Auto-generated method stubString action = intent.getAction();if (action.equals(Intent.ACTION_BATTERY_CHANGED)) {// 电池状态，返回是一个数字// BatteryManager.BATTERY_STATUS_CHARGING 表示是充电状态// BatteryManager.BATTERY_STATUS_DISCHARGING 放电中// BatteryManager.BATTERY_STATUS_NOT_CHARGING 未充电// BatteryManager.BATTERY_STATUS_FULL 电池满int status = intent.getIntExtra("status", 0); // 电池状态// 电池健康情况，返回也是一个数字// BatteryManager.BATTERY_HEALTH_GOOD 良好// BatteryManager.BATTERY_HEALTH_OVERHEAT 过热// BatteryManager.BATTERY_HEALTH_DEAD 没电// BatteryManager.BATTERY_HEALTH_OVER_VOLTAGE 过电压// BatteryManager.BATTERY_HEALTH_UNSPECIFIED_FAILURE 未知错误int health = intent.getIntExtra("health", 0); //电池健康情况int scale = intent.getIntExtra("scale", 0); // 电池最大容量int nVoltage = intent.getIntExtra("voltage", 0); // 电池的电压int level = intent.getIntExtra("level", 0); // 电池的电量，数字int temperature = intent.getIntExtra("temperature", 0); // 电池的温度if (nVoltage != 0) {tv_status.setText("电池电量：" + level + "%");Log.i(TAG, "voltage = " + nVoltage + " level = " + level+ " temperature = " + temperature + "...success");} else {Log.i(TAG, "voltage = " + nVoltage + "...failed");}}}};

小结一下

更多相关文章

随机推荐