电池电量低于40%时可以关闭蓝牙吗?我正在开发一个应用程序,当电池电量低于 41% 时,它会自动关闭蓝牙和 wifi。我可以在 Android 中以编程方式执行此操作吗?
最佳答案
您可以通过以下代码获取电池电量:
private void batteryLevel() {
BroadcastReceiver batteryLevelReceiver = new BroadcastReceiver() {
public void onReceive(Context context, Intent intent) {
context.unregisterReceiver(this);
int rawlevel = intent.getIntExtra("level", -1);
int scale = intent.getIntExtra("scale", -1);
int level = -1;
if (rawlevel >= 0 && scale > 0) {
level = (rawlevel * 100) / scale;
}
batterLevel.setText("Battery Level Remaining: " + level + "%");
}
};
IntentFilter batteryLevelFilter = new IntentFilter(Intent.ACTION_BATTERY_CHANGED);
registerReceiver(batteryLevelReceiver, batteryLevelFilter);
}
然后使用此级别使用以下代码关闭蓝牙:
BluetoothAdapter mBluetoothAdapter = BluetoothAdapter.getDefaultAdapter();
if (mBluetoothAdapter.isEnabled() && level < 40)
mBluetoothAdapter.disable();
}
您可以通过以下电池信息链接获取更多信息: http://mihaifonoage.blogspot.com/2010/02/getting-battery-level-in-android-using.html
关于android - 电池电量低于40%时可以关闭蓝牙吗?,我们在Stack Overflow上找到一个类似的问题: https://stackoverflow.com/questions/9883890/