Android silently enables device hardware functions

1. Turn on Bluetooth

<uses-permission android:name="android.permission.BLUETOOTH"/> //The permissions required to use Bluetooth
<uses-permission android:name="android.permission.BLUETOOTH_ADMIN"/> //Use the permission to scan and set Bluetooth (declaring this permission must declare the above permission)

private BluetoothAdapter mBluetooth;

   mBluetooth = BluetoothAdapter.getDefaultAdapter(); //Get the Bluetooth adapter

if(!mBluetooth.isEnabled())
                 {
                         mBluetooth.enable();
                 }
                Toast.makeText(MainActivity.this,"Open successfully", Toast.LENGTH_SHORT).show();

 if(mBluetooth.isEnabled())
                 {
                         mBluetooth.disable();
                 }
                Toast.makeText(MainActivity.this,"closed successfully", Toast.LENGTH_SHORT).show();