android判断电池level

IntentFilter ifilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);

Intent batteryStatus = registerReceiver(null, ifilter);

// 是否在充电

int status = batteryStatus.getIntExtra(BatteryManager.EXTRA_STATUS, -1);

boolean isCharging = status == BatteryManager.BATTERY_STATUS_CHARGING ||

                    status == BatteryManager.BATTERY_STATUS_FULL;

// 怎么充

int chargePlug = batteryStatus.getIntExtra(BatteryManager.EXTRA_PLUGGED, -1);

boolean usbCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_USB;

boolean acCharge = chargePlug == BatteryManager.BATTERY_PLUGGED_AC;

int level = batteryStatus.getIntExtra(BatteryManager.EXTRA_LEVEL, -1);

Toast.makeText(getApplicationContext(), "999===="+level, Toast.LENGTH_SHORT).show();