Android Bluetooth crashes after orientation change

My code is based on the BluetoothChat sample from the API. I connect to another device just fine and I can read and write to the connection no problem. But th开发者_StackOverflow中文版en if I turn the device the orientation of the UI changes automatically. After this, if I try to write to the Bluetooth connection, my application crashes!

It seems weird that the orientation of the screen somehow affects the Bluetooth. I am new to Android, and I am not yet sure about stuff like when I should be saving and reloading the application's state. Is this one of those times? Does changing the orientation of the screen somehow reset the application's state?!

Thanks!

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When the orientation of the screen is changed, your activity is killed and restarted. You must save the state and reinitialize. See here: onSaveInstanceState